Minimally Invasive Management of Implant-Supported Rehabilitation in the Posterior Maxilla, Part I. Sinus Floor Elevation: Biologic Principles and Materials.
This article concerns biologic mechanisms regulating new bone formation after maxillary sinus augmentation and examines characteristics of available implants and grafting materials to help the clinician select the most rational and convenient surgical approach according to specific situations. PMID: 32233183 [PubMed - indexed for MEDLINE] (Source: International Journal of Periodontics and Restorative Dentistry)
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

The Influence of Cementoenamel Restorations in the Treatment of Multiple Gingival Recession Defects Associated with Noncarious Cervical Lesions: A Prospective Study.
Authors: de Sanctis M, Di Domenico GL, Bandel A, Pedercini C, Guglielmi D Abstract The aim of this present prospective study was to evaluate the outcomes of the multiple coronally advanced flap (MCAF) with a site-specific application of connective tissue graft (CTG) for the treatment of multiple gingival recession defects with or without the presence of noncarious cervical lesions (NCCLs). Analysis of periodontal conditions was performed in order to determine if the cementoenamel junction (CEJ) restorations could affect adequate plaque control as well as maintenance over time. A total of 93 gingival recessions were...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Minimally Invasive Management of Implant-Supported Rehabilitation in the Posterior Maxilla, Part II. Surgical Techniques and Decision Tree.
This article introduces a new decision tree for a minimally invasive approach based on current evidence to help the clinician safely and predictably manage implant-supported treatment of the atrophic posterior maxilla. PMID: 32233185 [PubMed - indexed for MEDLINE] (Source: International Journal of Periodontics and Restorative Dentistry)
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Indications for Simultaneous Implantation and Bone Augmentation Using the Allograft Bone Ring Technique.
This article will focus on a novel simultaneous approach that utilizes a custom milled cancellous allograft bone ring that is stabilized through the graft preparation and apical threads of the dental implant. Indications include simultaneous implant placement in a deficient sinus as well as horizontal and vertical four-, three-, two-, and one-wall defects. PMID: 32233186 [PubMed - indexed for MEDLINE] (Source: International Journal of Periodontics and Restorative Dentistry)
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Comparison of Free Gingival Graft and Gingival Unit Graft for Treatment of Gingival Recession: A Randomized Controlled Trial.
Authors: Sriwil M, Fakher MAA, Hasan K, Kasem T, Shwaiki T, Wassouf G Abstract The aim of this study was to compare the use of gingival unit graft (GUG) with free gingival graft (FGG) for treating wide gingival recession and increasing keratinized tissue. This randomized controlled trial with a split-mouth design included 30 localized bilateral recessions (Miller Classes I and II) that were randomly treated with GUG or FGG. Both grafts were fixed by cyanoacrylate glue. Probing depth, clinical attachment level, vertical recession depth, and keratinized tissue width were recorded at baseline and 1 and 6 months after ...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Clinical Outcomes of Maxillary Anterior Postextraction Socket Implants with Immediate Provisional Restorations Using a Novel Macro-Hybrid Implant Design: An 18- to 24-Month Single-Cohort Prospective Study.
Authors: Östman PO, Chu SJ, Drago C, Saito H, Nevins M Abstract Extraction and immediate implant placement/restoration in the esthetic zone is clinically challenging; benefits include fewer surgical appointments and maintenance of peri-implant soft tissues throughout the treatment period, and limitations include gingival recession and bone dehiscence during surgery. Macro-hybrid implants (large-diameter apical/narrow-diameter occlusal) were placed in 19 patients immediately following the extraction of hopeless maxillary anterior teeth. Immediate restorations were fabricated without occlusal contacts. Pre- and ...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

A Comparison of the Effect of Barrier Membranes on Clinical and Histologic Hard and Soft Tissue Healing with Ridge Preservation.
Authors: Ovcharenko N, Greenwell H, Katwal D, Patel A, Hill M, Shumway B, Cockerham BL Abstract Twenty patients completed this randomized, controlled, blinded clinical trial comparing ridge preservation with a bioabsorbable polylactic acid membrane (PLA group) compared to an acellular dermal matrix membrane guided bone regeneration (ADMG group). An intrasocket corticocancellous allograft plus a facial overlay xenograft was used for both groups. Final crestal ridge width was significantly greater for the ADMG group (P
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Perforation Risk Assessment in Maxillary Sinus Augmentation with Lateral Wall Technique.
This article reviews anatomical and patient-related factors that might affect the risk of perforation during the surgery and also aims to provide a risk assessment table to enable clinicians to analyze these factors prior to the lateral sinus augmentation surgery. PMID: 32233190 [PubMed - indexed for MEDLINE] (Source: International Journal of Periodontics and Restorative Dentistry)
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Comprehensive Rehabilitation for a Permanent Tooth Anodontia Patient Using an Integrated Digital Approach.
This report describes a 20-year-old woman with 19 deciduous teeth, a single permanent mandibular premolar, and other physical traits associated with ectodermal dysplasia. The patient demonstrated esthetic parameters associated with maxillomandibular alveolar insufficiency, and her chief complaints were directed toward esthetics and the potential impact of restorative choices on function. Three typical options for restoration include overdentures, removable partial dentures, or implant-supported prostheses replacing her natural dentition. This report illustrates a fully integrated digital approach to treatment planning, the...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Microbial Assessment of Two Different Abutment Designs in Peri-implant Sulcus and Implant Abutment Interface: A Case Control Postloading Study.
This study evaluates the microbial colonization in the peri-implant sulci and in implant-abutment interfaces of Laser-Lok implants (BioHorizons) with laser-microgrooved abutments (test group) and machined abutments (control group) 18 months after functional loading Real-time polymerase chain reaction revealed significantly greater total and specific microbial load in both the peri-implant sulcus and implant-abutment interface in the control group (P ≤ .05) Similarly, there was a significant reduction in the radiographic crestal bone loss in the test group (P ≤ .05) In total, 14 patients were assessed for clinical and...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Decontamination of the Infected Implant Surface: A Scanning Electron Microscope Study.
Authors: El Chaar E, Almogahwi M, Abdalkader K, Alshehri A, Cruz S, Ricci J Abstract A number of treatment options have been explored for peri-implantitis. Seven rough-surfaced implants that failed from peri-implantitis were retrieved. Surfaces were treated by different methods: saline, chlorhexidine, citric acid, 35% phosphoric acid etch gel, hydrogen peroxide, implantoplasty, airborne-particle abrasion, laser, and titanium brush. Implants were observed under scanning electron microscopy. Chemical agents failed to remove any biologic debris. Airborne-particle abrasion, laser, and titanium brush removed part of the...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

En Bloc Autotransplantation of Retained Canine in the Mandible: A Case Presentation.
Authors: Krasny M, Krasny K, Wojtowicz A Abstract Missing canines compromise function and esthetics and therefore should be restored. In case of a retained canine, there can be a conservative approach of classic orthodontic eruption. If that is not effective, an alternative treatment method is to remove the retained tooth, followed by implant placement or transalveolar autotransplantation of the retained canine. En bloc autotransplantation of a retained canine, with surrounding bone, preserves canine periodontium and increases chances for revascularization and vitality of the transplanted tooth. This paper presents...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Complication Management of a Socket Shield Case After 6 Years of Function.
Authors: Zuhr O, Staehler P, Huerzeler M Abstract Maintaining soft and hard tissues around dental implants after tooth extraction is one of the major challenges in implant dentistry. After tooth extraction, the subsequent loss of bone and soft tissue is inevitable due to the partial resorption of the buccal bone plate. The recently described socket shield technique addresses the problem by maintaining the buccal piece of the tooth in the extraction socket in order to preserve the buccal bone. As with every new technique, specific complications, like infection of the buccal piece of the tooth, can occur. Herein, the...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Immediate Provisionalization of Single Narrow Implants in Fresh Extraction Sockets and Healed Sites: Clinical and Radiographic Outcomes of 2 Years Follow-up.
Authors: Peron C, Romanos G Abstract The purpose of this clinical study was to evaluate, through clinical and radiographic parameters, the 2-year implant survival and success rates of single, narrow, immediately loaded implants (3.1-mm diameter) placed in fresh extraction sockets or healed sites in the anterior region. A total of 16 patients were treated with 16 narrow single implants in fresh extraction sockets and healed sites, and restored immediately with temporary crowns. After 3 months, the implants were finally restored with screw-retained or cemented lithium disilicate crowns. Implant success and survival r...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Root Coverage Procedures in Noncarious Cervical Lesions With and Without Restoration: A Systematic Review and Meta-Analysis.
Authors: Rovai ES, Ambrosio LMB, Morillo CMR, Villar CC, Holzhausen M, Santamaria MP, Pannuti CM Abstract The aim of this systematic review was to assess in patients with gingival recessions and noncarious cervical lesions (NCCLs) whether restoration of NCCLs may influence the percentage of root coverage following surgical root coverage procedures compared to surgical root coverage procedures without subsequent restoration. Four studies (randomized controlled trials) assessing the effects of NCCL restoration in combination with surgical root coverage procedures were included. Meta-analyses showed no significant dif...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Accuracy of a Novel Trace-Registration Method for Dynamic Navigation Surgery.
This study was undertaken in order to validate the accuracy of the TR protocol for dynamically guided implant surgery. A retrospective, observational, in vivo study was performed using dynamic navigation via the TR protocol. The preoperative cone beam computed tomography (CBCT) plan was superimposed and registered (aligned) with the postoperative CBCT scan to assess accuracy parameters. A total of 136 implants were placed in 59 partially edentulous arches. Mean deviation between the planned and actual position for all implants was 0.67 mm at the coronal level (entry point), 0.9 mm at the apical level, and 0.55 mm in depth,...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Lip Repositioning Surgery Using an Er,Cr:YSGG Laser: A Case Series.
Authors: Suh JJ, Lee J, Park JC, Lim HC Abstract Excessive gingival display (EGD) is a common esthetic concern. Lip repositioning surgery (LRS) was introduced as one of the treatment options to manage EGD. LRS can be used for skeletally and/or muscularly induced EGD. The present case series applied LRS using an Er,Cr:YSGG laser to treat 24 patients with minor vertical maxillary overgrowth or a hypermobile lip. At 6 months, the gingival display had decreased by 3.79 ± 1.59 mm (mean ± standard deviation), and the visible lip body when smiling had increased by 1.23 ± 0.74 mm. A questionnaire revea...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Micro-Shear Bond Strength of Novel MDP Calcium-Fluoride-Releasing Self-Adhesive Resin Cement After Thermocycling.
Authors: Mahrous A, Radwan MM, Kamel SM Abstract The purpose of the present study was to (1) investigate the micro-shear bond strength and failure mode of a novel methacryloxydecyl-dihydrogen-phosphate (MDP) calcium-fluoride-releasing self-adhesive resin cement (TheraCem, BISCO) to a tooth structure (enamel and dentin) and to yttrium-stabilized zirconia after thermocycling, and to (2) compare the results with a universal non-MDP-containing self-adhesive resin cement (RelyX Unicem, 3M ESPE) as a control. Enamel and dentin specimens (20 discs each) were obtained by using a diamond saw (IsoMet 4000, Buehler) with copi...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

A Modification for Treatment of Excessive Gingival Display: Tooth-Based Lip-Repositioning Technique.
Authors: Duruel O, Erduran NE, Tözüm TF Abstract Exposure of maxillary gingiva more than 3 mm while smiling is referred to as "excessive gingival display" or "gummy smile." Various treatment options for excessive gingival display are published in the literature, including lip repositioning, crown lengthening, botulinum toxin-A injections, and orthognathic surgeries. This case report aims to present a novel approach to the lip-repositioning procedure for treatment of excessive gingival display. The patient, who visited the department to demand a more esthetic smile, was diagnosed with e...
Source: International Journal of Periodontics and Restorative Dentistry - April 3, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Crestal Window Sinus Lift and Its Long-Term Clinical Outcomes.
Authors: Soardi CM, Soardi B, Wang HL Abstract Sinus augmentation has been shown to be an effective methodology to augment a deficient maxillary sinus. However, there are many techniques a clinician can choose from. Historically, lateral window or crestal osteotome approaches were the most frequently discussed techniques. In this paper, a sinus floor elevation technique with crestal window sinus lift was proposed to treat cases of extremely atrophic maxillae (remaining bone height ≤ 2 mm). A crestal window is opened for the sinus membrane to be detached from the bony walls. After the proper elevation and membran...
Source: International Journal of Periodontics and Restorative Dentistry - March 21, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Radiographic Evaluation of the Alveolar Ridge Splitting Technique Combined with Guided Bone Regeneration vs Guided Bone Regeneration Alone in the Anterior Maxilla: A Retrospective Controlled Study.
This study aimed to estimate the radiographic outcomes of the alveolar ridge splitting (ARS) technique combined with guided bone regeneration (GBR) and compare its efficacy with GBR alone in maxillary anterior narrow ridges. Forty patients with 51 implants in the ARS group and 40 patients with 49 implants in the GBR group were included. The buccal bone thickness (BBT) at 0 to 4 mm from the implant shoulder immediately and 6 months postoperative were analyzed using cone beam computed tomography. The BBT at both time points had no statistical disparities between the two groups (P> .05). However, BBT changes indicated sign...
Source: International Journal of Periodontics and Restorative Dentistry - March 17, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

A Randomized Controlled Trial Evaluating Grafting the Facial Gap at Immediately Placed Implants.
This study suggests that bone formation does occur along the facial surface of implants placed into extraction sockets. PMID: 32130284 [PubMed - as supplied by publisher] (Source: International Journal of Periodontics and Restorative Dentistry)
Source: International Journal of Periodontics and Restorative Dentistry - March 6, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Changes in Peri-implant Soft Tissue Thickness with Bone Grafting and Dermis Allograft. Part II: A Comparative Retrospective Case Series Using a Subcrestal Angle Correction Implant Design.
Authors: Levin BP, Saito H, Reynolds MA, Chu SJ Abstract Immediate tooth replacement therapy (ITRT) in the maxillary anterior sextant is an increasingly frequent treatment option sought by patients and performed by clinicians worldwide. Achieving long-term results that are predictable, stable, esthetic, and healthy is the ultimate goal. This trend also lends itself to minimally invasive surgery as well as defining the procedure to a singular surgical intervention. Preserving and augmenting hard and soft tissues at the time of immediate implant placement provides the best opportunity to achieve these goals. Incorpor...
Source: International Journal of Periodontics and Restorative Dentistry - February 13, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

The Papilla Access Tunnel Technique for the Treatment of Shallow Recession and Thin Tissue in the Mandibular Anterior Region.
Authors: Allen EP Abstract It is often difficult to perform the tunnel technique for root coverage and soft tissue augmentation in the mandibular anterior region where there is shallow recession and thin soft tissue, particularly when accompanied by prominent roots and alveolar undercuts. The aim of this report is to present a papilla access technique that facilitates tunnel site preparation and graft placement in such sites. This surgical access method may also be applied to sites where there is moderate to severe recession of the mandibular central incisors, and extension of the tunnel to include both the lateral...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Histologic Evaluation of rhBMP-2 in an Extraction Site Model in the Esthetic Zone: A Series of 16 Cases Preparing for Implant Placement.
This study examined histologic wound healing following extraction and ridge preservation using recombinant human BMP-2 (rhBMP-2) and a collagen sponge. Formation of new vital bone was seen, suggesting that this material is a viable option for ridge preservation in preparation for implant placement. PMID: 32032399 [PubMed - in process] (Source: International Journal of Periodontics and Restorative Dentistry)
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

The Fence Technique: 100% Autogenous Bone Graft vs 50% Deproteinized Bovine Bone Matrix and 50% Autogenous Bone Graft. A Histologic Randomized Controlled Trial.
Authors: Merli M, Mariotti G, Pagliaro U, Mazzoni A, Moscatelli M, Nieri M Abstract The aim of this histologic, single-blind, parallel, randomized clinical trial was to compare vertical bone augmentation grafting with 100% autogenous bone (group AB) vs 50% deproteinized bovine bone matrix (DBBM)/50% autogenous bone (group BOAB) using the Fence Technique in a two-stage implant placement. A biopsy was performed in the regenerated area at implant insertion 6 months after the augmentation surgery. The results reflect a sample size of four patients treated per group. At implant placement, 6 months after grafting, no sig...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Inflamed Odontogenic Cyst with Actinomyces Colonization: Management of an Atypical Case in a 16-Year-Old Patient.
Authors: Soolari A, Soolari A, Fielding C Abstract Inflammatory odontogenic cysts, if not treated, may lead to progression of osteolytic activity, potential paresthesia, and loss of teeth. A 16-year-old female patient was referred by a pediatric dentist for asymptomatic abnormal radiolucency found interproximally to the mandibular left first and second premolars. Radiographic, clinical, and pathologic analyses led to a diagnosis of an inflamed odontogenic cyst (type K09.0) with Actinomyces colonization. The cyst was treated by periodontal regenerative therapy and resulted in successful osseous regeneration. This wa...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

CAD/CAM Implant Abutments: Peri-implant Hard and Soft Tissue Response with Up to 4 Years of Follow-up- A Retrospective Cohort Study Evaluation.
Authors: Parpaiola A, Toia M, Norton M, Cecchinato D, Bressan E, Lops D Abstract This retrospective study evaluated hard and soft tissue response and reported mechanical and technical complications around computer-aided design/computer-assisted manufactured (CAD/CAM) abutments. A total of 123 patients restored with titanium, gold-hue titanium, and zirconia CAD/CAM abutments were included (N = 291). Each patient was followed up for at least 2 years. Clinical and radiographic parameters were assessed annually and complications were recorded. No implant or reconstruction failures were reported. One fracture of a zirco...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Human Clinical and Histologic Evaluations of Laser-Assisted Periodontal Therapy with a 9.3- μm CO2 Laser System.
Human Clinical and Histologic Evaluations of Laser-Assisted Periodontal Therapy with a 9.3-μm CO2 Laser System. Int J Periodontics Restorative Dent. 2020 Mar/Apr;40(2):203-210 Authors: Nevins M, Nevins ML, Parma-Benfenati S, Benfenati MR, Schupbach P, Chen CY, Sava C, Sava C, Trifan M, Kim DM Abstract This investigation was designed to evaluate the healing response of 9.3-μm CO2 laser-assisted periodontal therapy. Five patients presenting with moderate to severe periodontitis, with an initial pocket depth (PD) ≥ 5 mm and with teeth predetermined to be surgically extracted, were enrolled and co...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Treatment of Multiple Mandibular Gingival Recession Defects Using MCAT Technique and SCTG With and Without rhPDGF-BB: A Randomized Controlled Clinical Trial.
Authors: Parween S, George JP, Prabhuji M Abstract The aim of this randomized controlled trial was to compare the clinical outcomes of modified coronally advanced tunnel technique (MCAT) with subepithelial connective tissue graft (SCTG) with and without recombinant human platelet-derived growth factor-BB (rhPDGF-BB) for mandibular multiple recessions. Twenty-four Miller Class I and III recessions were randomly assigned to a group: test (MCAT+SCTG+rhPDGF-BB) or control (MCAT+SCTG). After 6 months, mean recession-depth reduction was higher in the test group (2.08 ± 0.90 mm) than the control (1.83 ± 0.93...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Peri-implant Papillae Reconstruction at an Esthetically Failing Implant.
Authors: Stefanini M, Marzadori M, Tavelli L, Bellone P, Zucchelli G Abstract This case report aimed to describe a soft tissue approach to restore a buccal soft tissue dehiscence (BSTD) combined with the loss of peri-implant papillae and loss of periodontal attachment on the adjacent teeth. The first step of the proposed approach was the removal of the crown and abutment to leave the interproximal soft tissue to fill the space previously occupied by the crown. After 3 months, during which time the patient was wearing a provisional restoration (a temporary Maryland bridge), the implant site was treated as an edentul...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Tunnel Technique with a Subperiosteal Bag for Horizontal Ridge Augmentation.
Authors: Karmon B, Tavelli L, Rasperini G Abstract Several approaches for horizontal ridge augmentation have been proposed, including guided bone regeneration (GBR), ridge split, and block grafts. Minimally invasive techniques for horizontal GBR have been introduced to reestablish an adequate bone volume, minimizing tissue trauma and patient morbidity. The present article describes a tunnel technique with a subperiosteal bag for horizontal GBR. A collagen membrane is partially perforated, folded, and sutured to form a bag that is filled with xenogeneic bone graft. The filled bag is inserted into a subperiosteal tun...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Autologous Platelet Concentrates as Clinical Substitutes for Connective Tissue Graft in the Treatment of Miller Class I and II Gingival Recessions: An Updated Meta-Analysis.
Authors: Ye P, Wei T, Wang Y, Cai YJ Abstract This meta-analysis aimed to evaluate the clinical effectiveness of autologous platelet concentrates (APC) + coronally advanced flap (CAF) (Group A) compared with connective tissue graft (CTG) + CAF (Group B), and CAF alone (Group C), in patients with Miller Class I or II gingival recessions. Relevant articles published before December 2018 were retrieved electronically without date or language restriction and screened according to inclusion criteria. Quantitative meta-analysis was conducted comparing the groups. The inverse variance method was applied in fixed or random...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Evaluation of the Effect of Hyaluronic Acid Application on the Vascularization of Free Gingival Graft for Both Donor and Recipient Sites with Laser Doppler Flowmetry: A Randomized, Examiner-Blinded, Controlled Clinical Trial.
This study aimed to evaluate with laser Doppler flowmetry (LDF) the effect of topical hyaluronic acid (HA) application on the vascularization of free gingival graft (FGG) donor and recipient sites during the early wound healing period and to investigate the effect of HA application on the dimensional change of the FGG. Forty systemically healthy, nonsmoking patients who required FGG due to insufficient amount of attached gingiva in a partial edentulism were randomly assigned to a study group: test (FGG+HA) or control (FGG alone). The LDF values of the donor and recipient sites were measured in both groups before the operat...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Fracture Strength of Implant Screw-Retained All-Ceramic Crowns with the Use of the Angulated Screw Channel: A Pilot Study.
This study evaluated the fracture strength of a newly designed zirconia crown with a 25-degree angulated screw channel (n = 5) vs a straight channel (n = 5). Each specimen was subjected to an off-axis compression load from an MTS cyclic loading machine with a custom-designed indenter simulating a natural dentition. All the 25-degree angulated screw channel specimens failed, with four of the five (80%) catastrophically failing. Four of the five straight-channel specimens failed, with two of the five (40%) catastrophically failing. Results revealed the potential abutment fracture from internal stresses at the screw-zirconia ...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

The Eye-Tracking Study of the Impact of the Gingival Margin Height of Maxillary Lateral Incisors.
The objective of this study was to verify differences in eye-tracking metrics and subjective smile esthetic ratings between general practitioners, orthodontists, and laypersons in cases of maxillary lateral incisor gingival margin deviations. Unilateral apical and incisal gingival margin deviations of 1, 2, and 3 mm were digitally produced in pictures of a man and a woman smiling. Specific areas of interest (AOIs) were created in each picture. Eye-tracking metric data included the time to first fixation (TFF) and number of fixations (NF). A specific sensor and software were used to acquire information on the eye movements....
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

The Effect of Different Combinations of Surface Treatments and Bonding Agents on the Shear Bond Strength Between Titanium Alloy and Lithium Disilicate Glass-Ceramic.
Authors: Alkhadashi A, Güven MÇ, Erol F, Yıldırım G Abstract In order to obtain a more-natural esthetic prothesis, the use of hybrid abutments is becoming widespread in implant dentistry. The aim of this in vitro study was to assess the effects of different surface treatments, as well as the effects of different combinations of surface treatments and cementation protocols, on the shear bond strength between titanium alloy disks and lithium disilicate glass-ceramics. Forty titanium-alloy disks (4 × 6.6 mm) were fabricated using computer-aided designed/computer-assisted manufacturing, and an iden...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Detection Accuracy of Bone Defects Depending on Exposure Settings of Cone Beam Computed Tomography.
Authors: Vassilopoulos SI, Bobetsis YA, Mastoris M, Pepelassi E, Nikopoulou-Karagianni K Abstract Despite the widespread use of cone beam computed tomography (CBCT), few articles have been published to assess the accuracy in detecting alveolar bone defects using different CBCT exposure settings. A human cadaver with rounded bone defects in various locations was scanned using a CBCT scanner at different settings. Four examiners twice studied 1,500 cross-sectional digital and printed slices for defect presence, location, and size. High-resolution zoom mode achieved the highest overall accuracy. Moreover, apical locat...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Osseointegration Foundation Charity Overdenture Program Study.
Authors: Nevins M, Capetta E, Horning C, Kerr E, Kim DM, Kirshner K, Machell JC, Marcus E, Romanos G, Silverstein S, Strauss G, Wang HL, Winston M Abstract This investigation has been stimulated by the Osseointegration Foundation, working in conjunction with the Zest Anchors implant company. There are three basic valuable activities that emerge from a professional foundation, which were reflected in this case study. They include disseminating information to practitioners, to persuade young clinicians to become research investigators, and to reach out to patients in need of treatment who cannot afford it without a c...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

The Effect of Platform-Switching Implants and Different Abutment Materials on the Stress Distribution of Implant-Supported Restorations.
Authors: Salama AA, Katamesh HA, El Mahallawi O, Halim CH Abstract The purpose of this study was to evaluate the effect of implant platform-switching design and abutment materials on the stress distribution around implants. Implants were fixed in epoxy-resin models restoring posterior missing first molars, representing two main groups according to the implant-abutment connection. Each group was subdivided according to the type of abutment material used (titanium or zirconia). Twenty monolithic fully anatomical zirconia crowns were fabricated. Stress analysis was measured around the implants using strain gauges duri...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Flowable and Regular Bulk-Fill Composites: A Comprehensive Report on Restorative Treatment.
This article reports a comprehensive restorative treatment using bulk-fill composites and discusses their properties and clinical performance. A 20-year-old man sought dental treatment due to the dark shade of his smile and multiple old amalgam fillings. Based on clinical and radiographic findings, and the patient's demand for tooth-colored fillings, treatment comprised enamel microabrasion and in-office dental bleaching, followed by the replacement of amalgam fillings by bulk-fill composites. Bulk-fill composites exhibit modifications in the filler size and shape or in the chemistry of monomers that allow them to be appli...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Efficiency of Concentrated Growth Factor in the Surgical Treatment of Multiple Adjacent Papillary Losses: A Randomized, Controlled, Examiner-Blinded Clinical Trial Using CAD/CAM.
This study aimed to create papilla with concentrated growth factor (CGF) in cases in which the interdental papilla was not able to fill the interproximal space (IPS) due to physiologic factors. A three-dimensional digital model of this space with the digital impression obtained from direct intraoral scanning of IPS was created. This study aimed to evaluate the efficacy of CGF in the regeneration of multiple adjacent papillary losses (MAPL), with the change in the IPS area calculated on intraorally scanned images obtained with digital impressions. This study included 160 teeth from 40 patients with 120 papillary losses. Pat...
Source: International Journal of Periodontics and Restorative Dentistry - February 9, 2020 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Clinical Considerations on Strategies That Avoid Multiple Connections and Disconnections of Implant Abutments.
Authors: Canullo L, Tallarico M, Gracis S, Vela X, Rodriguez X, Covani U Abstract Typically, healing or temporary abutments are connected and disconnected several times between implant placement and definitive restoration delivery, and soft tissue disruption occurs each time the abutment is disconnected and reconnected. This histologic event is supposed to cause bone resorption around the implant after second-stage surgery. To minimize this clinical scenario, immediately placing and never removing a definitive abutment the day of implant insertion (one-stage protocol) or at second-stage surgery in cases of submerge...
Source: International Journal of Periodontics and Restorative Dentistry - December 11, 2019 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Restorative Emergence Profile for Single-Tooth Implants in Healthy Periodontal Patients: Clinical Guidelines and Decision-Making Strategies.
Authors: Chu SJ, Kan JY, Lee EA, Lin GH, Jahangiri L, Nevins M, Wang HL Abstract The peri-implant soft tissue seal consists of a connective tissue cuff and a junctional epithelium that is different from the arrangement of periodontium around a natural tooth. However, the peri-implant soft tissue complex lacks Sharpey's fibers, thus offering less resistance to clinical probing and biofilm penetration compared to the natural dentition. Therefore, the proper restorative emergence profile design is essential to facilitate favorable esthetic outcomes and maintain peri-implant health. The aim of this article is to review...
Source: International Journal of Periodontics and Restorative Dentistry - December 11, 2019 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Clinical Recommendations for Implant Abutment Selection for Single-Implant Reconstructions: Customized vs Standardized Ceramic and Metallic Solutions.
Authors: Zarauz C, Pitta J, Pradies G, Sailer I Abstract The present paper presents clinical guidelines for the selection of the abutment material and level of customization for single-implant reconstructions. A systematic literature search was conducted previous to a Consensus Conference, resulting in two systematic reviews. One review focused on esthetic clinical outcomes, including esthetic indices and linear measurements, and the second focused on peri-implant soft tissue color outcomes, evaluated with spectrophotometry. The outcomes of esthetic indexes and linear measurement were highly heterogenic, hence, a m...
Source: International Journal of Periodontics and Restorative Dentistry - December 11, 2019 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

The Influence of Implant Neck Features and Abutment Diameter on Hard and Soft Tissues Around Single Implants Placed in Healed Ridges: Clinical Criteria for Selection.
Authors: Gracis S, Llobell A, Bichacho N, Jahangiri L, Ferencz JL Abstract The clinician's selection of an implant system is influenced by many variables. Ideally, the decision should be based on scientific evidence, but often these decisions are based on economic considerations or influenced by the experience of a trusted peer. The purpose of this paper is to describe the influence of implant neck features (shape and surface) and abutment connection (diameter that matches or is smaller than the implant's platform) on hard and soft tissues around single-tooth implants placed into healed ridges with adequate hard an...
Source: International Journal of Periodontics and Restorative Dentistry - December 11, 2019 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Implantoplasty Enhancing Peri-implant Bone Stability Over a 3-Year Follow-up: A Case Series.
Authors: Bianchini MA, Galarraga-Vinueza ME, Bedoya KA, Correa BB, de Souza Magini R, Schwarz F Abstract Implantoplasty has been claimed as a promising strategy to treat peri-implantitis and prevent progressive peri-implant bone loss. Consequently, the aim of the present case series is to exhibit the clinical outcomes of a 3-year-follow-up resective and implantoplasty therapy applying a novel platform-switch concept to preserve peri-implant tissue integrity and counteract progressive bone loss. Four patients who underwent dental implant therapy and were diagnosed with peri-implantitis were treated through access fl...
Source: International Journal of Periodontics and Restorative Dentistry - December 11, 2019 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Management of Thick and Thin Periodontal Phenotypes for Immediate Dental Implants in the Esthetic Zone: A Controlled Clinical Trial.
Authors: Tatum CL, Saltz AE, Prihoda TJ, DeGroot BS, Mealey BL, Mills MP, Huynh-Ba G Abstract The goal of the study was to compare the outcome of immediate single-implant placement in esthetic sites of patients with thick or thin tissue phenotypes. Forty-one patients underwent implant surgery with guided bone regeneration including peri-implant gap and overcontour grafting. A connective tissue graft was added only for patients with a thin tissue phenotype. Twenty-six patients completed the 12-month follow-up examination (thick, n = 14; thin, n = 12). The thick-phenotype group gained 0.01 ± 1.56 mm of midfaci...
Source: International Journal of Periodontics and Restorative Dentistry - December 11, 2019 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Contour Management of Implant Restorations for Optimal Emergence Profiles: Guidelines for Immediate and Delayed Provisional Restorations.
Authors: González-Martín O, Lee E, Weisgold A, Veltri M, Su H Abstract Adequate management of the implant-supported restoration has become an important task when trying to obtain optimal esthetic outcomes. The transgingival area must be developed to maintain or influence the final appearance of the peri-implant soft tissues. Two distinct zones within the implant abutment/crown can be identified: the critical contour and the subcritical contour. Their design and subsequent alteration may impact the peri-implant soft tissue architecture, including the gingival margin level and zenith, labial alveolar pr...
Source: International Journal of Periodontics and Restorative Dentistry - December 11, 2019 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research

Effect of Framework Type on the Biomechanical Behavior of Provisional Crowns: Strain Gauge and Finite Element Analyses.
Authors: Tribst JPM, de Oliveira Dal Piva AM, Borges ALS, Nishioka RS, Bottino MA, Rodrigues VA Abstract The aim of this study was to evaluate the effects of different frameworks on the biomechanical behavior of implant-supported provisional single crowns to indicate or not the use of plastic framework as infrastructure. For finite element analysis, a hemi-jaw stone model was scanned and modeled with an external hexagon implant. A framework was screwed onto the implant and a crown was constructed over it. The set was made in triplicate according to framework type: plastic, cobalt-chromium (CoCr), and titanium. Mode...
Source: International Journal of Periodontics and Restorative Dentistry - December 11, 2019 Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research