Factors associated with long-term vertical skeletal changes induced by facemask therapy in patients with Class III malocclusion.
CONCLUSIONS: Vertical skeletal changes as a result of facemask therapy are significantly associated with severity of the skeletal Class III malocclusion and mandibular plane angulation before treatment and the amount of forward maxillary growth during the treatment and retention periods. PMID: 29131663 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - November 13, 2017 Category: Dentistry Authors: Kwak HJ, Park HJ, Kim YJ, Lee DY Tags: Angle Orthod Source Type: research

Tissue repair after selective alveolar corticotomy in orthodontic patients:A preliminary study.
Abstract OBJECTIVES: To analyze histologic findings of bone remodeling at the time of surgery and 90 days later at corticotomized and noncorticotomized sites. MATERIALS AND METHODS: Eight adult patients with bilaterally inclined mandibular molars were included in this split-mouth study. Corticotomy was performed on the test side, and bone was harvested on both mandibular hemi-arches. Bone blocks were shipped to Forsyth Institute lab (Boston, Mass). After surgery, cantilevers were activated to upright inclined mandibular molars on both sides. Approximately 90 days after surgery, new mandibular bone blocks were...
Source: The Angle Orthodontist - November 13, 2017 Category: Dentistry Authors: Medeiros RB, Pires FR, Kantarci A, Capelli J Tags: Angle Orthod Source Type: research

Comparison of two early treatment protocols for anterior dental crossbite in the mixed dentition: A randomized trial.
Abstract OBJECTIVE: To evaluate and compare two treatment protocols to correct anterior dental crossbite in the mixed dentition. MATERIALS AND METHODS: Thirty children, 8-10 years of age, participated. Individuals were divided into two groups. Group 1 consisted of 15 children treated with an upper removable appliance with finger springs; group 2, 15 children treated by bonding resin-reinforced glass ionomer cement bite pads on the lower first molars. The 30 participants were evaluated before treatment (T1) and 12 months after treatment began (T2). The variables evaluated included overjet, perimeter of the max...
Source: The Angle Orthodontist - November 6, 2017 Category: Dentistry Authors: Miamoto CB, Marques LS, Abreu LG, Paiva SM Tags: Angle Orthod Source Type: research

Effect of incisal loading during orthodontic treatment in adults:A randomized control trial.
Abstract OBJECTIVE: To measure the changes in tooth mobility, alveolar bone, and receptor activator of nuclear factor kappa-B ligand (RANKL)/osteoprotegerin (OPG) in the gingival crevicular fluid (GCF) during orthodontic treatment to regain incisal function in the presence and absence of biting exercises. MATERIALS AND METHODS: Thirty-six females (42.3 ± 6.5 years old) with periodontally compromised upper incisors received orthodontic treatment to obtain ideal incisor relationships. Eighteen subjects in the experimental biting exercise group were instructed to bite a soft plastic roll for 5 min/d; the ...
Source: The Angle Orthodontist - November 3, 2017 Category: Dentistry Authors: Puttaravuttiporn P, Wongsuwanlert M, Charoemratrote C, Lindauer SJ, Leethanakul C Tags: Angle Orthod Source Type: research

Recovery of multiple impacted maxillary teeth in a hyperdivergent Class I patient using Temporary Skeletal Anchorage Devices and augmented corticotomy.
Abstract Treatment of multiple impacted teeth is challenging. Three-dimensional treatment planning can help in delivering a better outcome. This case report presents a patient with an incomplete dental transposition between the canine and lateral incisor of the maxillary right side associated with the impaction of a dilacerated right central incisor. Using a two-stage surgical exposure and augmented corticotomy, the patient's occlusion and smile esthetics were significantly improved, and Class I occlusal relationships with optimal overjet and overbite were achieved after 50 months of orthodontic treatment. Thirty-...
Source: The Angle Orthodontist - October 31, 2017 Category: Dentistry Authors: Kim KA, Hwang HS, Chung KR, Kim SH, Nelson G Tags: Angle Orthod Source Type: research

Alveolar bone response to light-force tipping and bodily movement in maxillary incisor advancement:A prospective randomized clinical trial.
Abstract OBJECTIVE: To compare alveolar bone thickness and height changes between untreated incisors (control), incisors advanced with light-force tipping, and incisors advanced with bodily movement mechanics. MATERIALS AND METHODS: Forty-three subjects (aged 9.49 ± 1.56 years) with anterior crossbite were allocated into an untreated group (control), tipping group, or bodily movement group. Lateral cephalograms were taken before advancement (T0) and after obtaining normal overjet (T1). Changes in labial and palatal alveolar bone thickness and height surrounding maxillary incisors were evaluated with li...
Source: The Angle Orthodontist - October 30, 2017 Category: Dentistry Authors: Chaimongkol P, Thongudomporn U, Lindauer SJ Tags: Angle Orthod Source Type: research

Correlation between periodontal soft tissue and hard tissue surrounding incisors in skeletal Class III patients.
CONCLUSIONS: In the anterior teeth in cases of skeletal Class III malocclusion, hard tissue structures on the buccal side can be grouped based on coronal and apical factors that are significantly correlated with keratinized gingival width and thickness. Thick and thin gingival biotypes exhibited differences in tooth inclination and alveolar plate thickness with regard to the mandibular incisors. PMID: 29072859 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - October 26, 2017 Category: Dentistry Authors: Park JH, Hong JY, Ahn HW, Kim SJ Tags: Angle Orthod Source Type: research

Success rates of a skeletal anchorage system in orthodontics: A retrospective analysis.
CONCLUSIONS: The success rate of skeletal anchorage system miniplates is high and predictable for a wide range of complex orthodontic movements. PMID: 29053335 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - October 20, 2017 Category: Dentistry Authors: Lam R, Goonewardene MS, Allan BP, Sugawara J Tags: Angle Orthod Source Type: research

Scanning electron microscope comparative surface evaluation of glazed-lithium disilicate ceramics under different irradiation settings of Nd:YAG and Er:YAG lasers.
CONCLUSIONS: Neither Er:YAG nor Nd:YAG dental lasers exhibited adequate surface modification for bonding of orthodontic brackets on glazed lithium disilicate ceramics compared with the control treated with 9.5% HF. PMID: 29039965 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - October 17, 2017 Category: Dentistry Authors: Viskic J, Jokic D, Jakovljevic S, Bergman L, Ortolan SM, Mestrovic S, Mehulic K Tags: Angle Orthod Source Type: research

Effect of flapless osteoperforation-assisted tooth movement on atrophic alveolar ridge: Histomorphometric and gene-enrichment analysis.
CONCLUSIONS: Flapless osteoperforation facilitated the rate of OTM toward the atrophic ridge, maintaining low bone density, whereas it did not increase the volume of the atrophic ridge. PMID: 29016190 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - October 10, 2017 Category: Dentistry Authors: Lee JW, Cha JY, Park KH, Kang YG, Kim SJ Tags: Angle Orthod Source Type: research

Treatment changes of hypo- and hyperdivergent Class II Herbst patients.
CONCLUSIONS: Hypo- and hyperdivergent patients benefit from the Herbst's headgear effect. While the mandibular growth of hypodivergent patients overcomes the negative rotational effects, hyperdivergent patients undergo a deleterious backward mandibular rotation and increases in facial height. PMID: 29016191 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - October 10, 2017 Category: Dentistry Authors: Rogers K, Campbell PM, Tadlock L, Schneiderman E, Buschang PH Tags: Angle Orthod Source Type: research

Class II malocclusion treatment effects with Jones Jig and Distal Jet followed by fixed appliances.
CONCLUSIONS: Treatment protocols using the Jones Jig and Distal Jet followed by fixed appliances were effective in correcting Class II malocclusion by means of dentoalveolar changes without significant skeletal and soft tissue changes. The experimental groups showed occlusal plane clockwise rotation and greater mesial tipping of maxillary second molars when compared to the untreated group. PMID: 28985105 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - October 6, 2017 Category: Dentistry Authors: Vilanova L, Henriques JFC, Janson G, Patel MP, Reis RS, Aliaga-Del Castillo A Tags: Angle Orthod Source Type: research

A comparative study of the effect of the intrusion arch and straight wire mechanics on incisor root resorption: A randomized, controlled trial.
nda R Abstract OBJECTIVE: To analyze and compare external apical root resorption (EARR) of maxillary incisors treated by intrusion arch or continuous archwire mechanics. MATERIALS AND METHODS: This cone-beam computed tomography (CBCT) study analyzed 28 deep bite patients in the permanent dentition who were randomly divided into two groups: Group 1, 12 patients with initial mean age of 15.1 ± 1.6 years and mean overbite of 4.6 ± 1.2 mm treated with the Connecticut intrusion arch (CIA) in the upper arch (Ortho Organizers, Carlsbad, Calif) for a mean period of 5.8 ± 1.27 months. Group 2, 16 ...
Source: The Angle Orthodontist - October 6, 2017 Category: Dentistry Authors: de Almeida MR, Marçal ASB, Fernandes TMF, Vasconcelos JB, de Almeida RR, Nanda R Tags: Angle Orthod Source Type: research

A comparison of treatment effects of total arch distalization using modified C-palatal plate vs buccal miniscrews.
Abstract OBJECTIVE: The purpose of this study was to compare the treatment effects of palatally vs buccally placed temporary anchorage devices. MATERIALS AND METHODS: Of 40 Class II division 1 malocclusion patients, 22 were treated with modified C-palatal plate (MCPP) appliances (age 21.9 ± 6.6 years), and 18 (age 24.2 ± 6.8 years) were treated with buccally placed miniscrews between the maxillary first molar and second premolar. A total of 26 linear and angular measurements were analyzed on pre- and posttreatment lateral cephalograms. Multivariate analysis of variance was performed to evaluate ...
Source: The Angle Orthodontist - October 6, 2017 Category: Dentistry Authors: Lee SK, Abbas NH, Bayome M, Baik UB, Kook YA, Hong M, Park JH Tags: Angle Orthod Source Type: research

The effect of bracket slot size on the effectiveness of orthodontic treatment: A systematic review.
CONCLUSIONS: While most studies indicated a shorter duration of treatment in patients with 0.018-inch bracket slots, no available data confirmed the higher efficiency of one system over the other. The biases in the studies did not allow for a reliable conclusion; therefore, new studies with a better methodologic design are needed. PMID: 28949767 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 26, 2017 Category: Dentistry Authors: Vieira EP, Watanabe BSD, Pontes LF, Mattos JNF, Maia LC, Normando D Tags: Angle Orthod Source Type: research

Bone availability for mandibular molar distalization in adults with mandibular prognathism.
CONCLUSIONS: Patients with Class III malocclusion have greater retromolar space for mandibular molar distalization along the posterior line of occlusion only at the level of the second molar furcation. PMID: 28949768 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 26, 2017 Category: Dentistry Authors: Choi YT, Kim YJ, Yang KS, Lee DY Tags: Angle Orthod Source Type: research

Characterizing constraining forces in the alignment phase of orthodontic treatment.
CONCLUSIONS: The data infer a hypothesis that malrotation type having weak CF might act as a limiting factor in the alignment phase to unravel the neighboring teeth. Future investigations to compare clinical and bench data can help explain more fully the constraints impeding alignment resolution and the factors governing the ability to bring malaligned teeth into alignment. PMID: 28949763 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 25, 2017 Category: Dentistry Authors: Gibson CG, Lin FC, Phillips C, Edelman A, Ko CC Tags: Angle Orthod Source Type: research

In vivo effect of antibacterial and fluoride-releasing adhesives on enamel demineralization around brackets: A micro-CT study.
CONCLUSIONS: The findings indicated no significant differences between the preventive effects of the adhesives used in this in vivo study over 8 weeks. PMID: 28906138 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 14, 2017 Category: Dentistry Authors: Oz AZ, Oz AA, Yazıcıoglu S Tags: Angle Orthod Source Type: research

Evaluation of maxillary central incisors on the noncleft and cleft sides in patients with unilateral cleft lip and palate-Part 1: Relationship between root length and orthodontic tooth movement.
CONCLUSIONS: In patients with unilateral cleft lip and palate, the short root length of cleft-adjacent central incisors might be associated with the horizontal position of the root apex. In addition, orthodontic treatment with a maxillary protraction appliance before secondary alveolar bone grafting might be associated with short U1 root length. PMID: 28906139 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 14, 2017 Category: Dentistry Authors: Maeda-Iino A, Marutani K, Furukawa M, Nakagawa S, Kwon S, Kibe T, Tezuka M, Nakamura N, Miyawaki S Tags: Angle Orthod Source Type: research

Evaluation of maxillary central incisors on the noncleft and cleft sides in patients with unilateral cleft lip and palate-Part 2: Relationship between root resorption, horizontal tooth movement, and quantity of grafted autogenous bone.
CONCLUSIONS: Cleft-adjacent U1 exhibited more severe EARR than did the U1 on the noncleft side, which might be associated with orthodontic treatment-induced changes in horizontal inclination and root apex movement. On the cleft side, severity of EARR may be correlated with the success of ABG. PMID: 28906140 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 14, 2017 Category: Dentistry Authors: Maeda-Iino A, Furukawa M, Kwon S, Marutani K, Nakagawa S, Fuchigami T, Nakamura N, Miyawaki S Tags: Angle Orthod Source Type: research

Extreme skeletal open bite correction with vertical elastics.
Abstract Severe skeletal open bites may be ideally treated with a combined surgical-orthodontic approach. Alternatively, compensations may be planned to camouflage the malocclusion with orthodontics alone. This case report describes the treatment of an 18-year-old man who presented with a severe open bite involving the anterior and posterior teeth up to the first molars, increased vertical dimension, bilateral Class III molar relationship, bilateral posterior crossbite, dental midline deviation, and absence of the maxillary right canine and the mandibular left first premolar. A treatment plan including the extract...
Source: The Angle Orthodontist - September 12, 2017 Category: Dentistry Authors: Cruz-Escalante MA, Aliaga-Del Castillo A, Soldevilla L, Janson G, Yatabe M, Zuazola RV Tags: Angle Orthod Source Type: research

Treatment outcomes of Class II malocclusion cases treated with miniscrew-anchored Forsus Fatigue Resistant Device: A randomized controlled trial.
CONCLUSIONS: Class II correction was mainly dentoalveolar in both treatment groups. Use of miniscrews with Forsus did not enhance mandibular forward growth nor prevent labial tipping of the mandibular incisors. PMID: 28885034 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 8, 2017 Category: Dentistry Authors: Eissa O, El-Shennawy M, Gaballah S, El-Meehy G, El Bialy T Tags: Angle Orthod Source Type: research

Can rapid maxillary expansion cause auditory improvement in children and adolescents with hearing loss? A systematic review.
CONCLUSIONS: The evidence indicated that there was a hearing improvement after maxillary expansion in patients with hearing loss in the evaluated studies, although more controlled and randomized studies are necessary to investigate this issue further. PMID: 28885035 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - September 8, 2017 Category: Dentistry Authors: Fagundes NCF, Rabello NM, Maia LC, Normando D, Mello KCFR Tags: Angle Orthod Source Type: research

Three-dimensional positional assessment of glenoid fossae and mandibular condyles in patients with Class II subdivision malocclusion.
Abstract OBJECTIVES: To test the null hypotheses that the positions of the glenoid fossae and mandibular condyles are identical on the Class I and Class II sides of patients with Class II subdivision malocclusion. MATERIALS AND METHODS: Retrospective three-dimensional (3D) assessments of the positions of the glenoid fossae and mandibular condyles were made in patients with Class II malocclusion. Relative to a fiducial reference at the anterior cranial base, distances from the glenoid fossae and condyles were calculated in pretreatment cone beam computed tomographic scans of 82 patients: 41 with Class II and 4...
Source: The Angle Orthodontist - September 1, 2017 Category: Dentistry Authors: de Mattos JM, Palomo JM, de Oliveira Ruellas AC, Cheib PL, Eliliwi M, Souki BQ Tags: Angle Orthod Source Type: research

Excellent customer service in the age of compromise.
PMID: 28820627 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 20, 2017 Category: Dentistry Authors: Lindauer SJ Tags: Angle Orthod Source Type: research

Errata.
Authors: PMID: 28820628 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 20, 2017 Category: Dentistry Tags: Angle Orthod Source Type: research

Errata.
Authors: PMID: 28820629 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 20, 2017 Category: Dentistry Tags: Angle Orthod Source Type: research

Academic Orthodontic Opportunities.
Authors: PMID: 28820630 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 20, 2017 Category: Dentistry Tags: Angle Orthod Source Type: research

Extraction of primary canines for interceptive orthodontic treatment of palatally displaced permanent canines: A systematic review.
CONCLUSIONS: Based on the available evidence, it is reasonable to conclude that eruption of PDCs can be facilitated by extraction of primary canines. However, further high-quality, randomized clinical trials are warranted in other population groups. It is hoped that this study will help orthodontists make evidence-based decisions about clinically managing PDCs. PMID: 28800259 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - August 11, 2017 Category: Dentistry Authors: Almasoud NN Tags: Angle Orthod Source Type: research

Improvement of masticatory kinematic parameters after correction of unilateral posterior crossbite: Reasons for functional retention.
Abstract OBJECTIVE: To evaluate reverse-sequencing chewing cycles (RSCC) and their kinematic parameters on both sides before and after correction with the Function Generating Bite (FGB) appliance. MATERIALS AND METHODS: Forty-seven patients, 8.3 ± 1.1 (mean ± SD) years of age, with unilateral posterior crossbite (35 on the right side, 12 on the left side) and 18 age-matched controls (9.1 ± 0.8 years) were selected for the study from the orthodontic division of the University of Turin, Italy. The crossbite was corrected in all patients using FGB, and mandibular motion was recorded with a k...
Source: The Angle Orthodontist - August 3, 2017 Category: Dentistry Authors: Piancino MG, Cordero-Ricardo M, Cannavale R, Vallelonga T, Garagiola U, Merlo A Tags: Angle Orthod Source Type: research

Discomfort associated with Invisalign and traditional brackets: A randomized, prospective trial.
Abstract OBJECTIVE: To evaluate differences in discomfort levels between patients treated with aligners and traditional fixed orthodontic appliances. MATERIALS AND METHODS: This blinded, prospective, randomized equivalence two-arm parallel trial allocated 41 adult Class I nonextraction patients to either traditional fixed appliance (6 males and 12 females) or aligner (11 males and 12 females) treatment. Patients completed daily discomfort diaries following their initial treatment appointment, after 1 month and after 2 months. They recorded their levels of discomfort at rest, while chewing, and while biting, a...
Source: The Angle Orthodontist - July 28, 2017 Category: Dentistry Authors: White DW, Julien KC, Jacob H, Campbell PM, Buschang PH Tags: Angle Orthod Source Type: research

Comparative study of root resorption of maxillary incisors in patients treated with lingual and buccal orthodontics.
CONCLUSIONS: The magnitude of apical root resorption in maxillary incisors in patients with anterior crowding was similar regardless of orthodontic technique, lingual or conventional. Both techniques resulting in an apical rounding considered clinically insignificant. PMID: 28737425 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 24, 2017 Category: Dentistry Authors: Nassif CE, Cotrim-Ferreira A, Conti ACCF, Valarelli DP, de Almeida Cardoso M, de Almeida-Pedrin RR Tags: Angle Orthod Source Type: research

Posterior cranial base natural growth and development: A systematic review.
CONCLUSIONS: Current evidence suggests that S-Ba is not totally stable, as its dimensions change throughout craniofacial growth and a minor dimensional change is observed even in late adulthood. PMID: 28737426 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 24, 2017 Category: Dentistry Authors: Currie K, Sawchuk D, Saltaji H, Oh H, Flores-Mir C, Lagravere M Tags: Angle Orthod Source Type: research

Three-dimensional alteration of constricted alveolar ridge affected by root thrusting with and without open-flap decortication.
Abstract OBJECTIVE: To investigate the morphometric and histological alterations of the constricted alveolar ridge when affected by root thrusting with and without open-flap decortication. MATERIALS AND METHODS: Eight beagles were divided into three groups: C, control without root thrusting; R, root thrusting only; RD, root thrusting with alveolar decortication. The ridge constriction model was prepared in 16 mandibular quadrants after extraction of the third premolars. Reciprocal root thrusting of the second and fourth premolars was performed toward the constricted ridge for 10 weeks, having a moment of 900 ...
Source: The Angle Orthodontist - July 14, 2017 Category: Dentistry Authors: Hwang D, Lee WJ, Kim KA, Baek SH, Park YG, Kim SJ Tags: Angle Orthod Source Type: research

Long-term influence of fixed lingual retainers on the development of gingival recession: A retrospective, longitudinal cohort study.
CONCLUSIONS: Long-term presence of fixed lingual retainers does not seem to increase the development of mandibular gingival recession, but does increase calculus accumulation. PMID: 28686089 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 7, 2017 Category: Dentistry Authors: Juloski J, Glisic B, Vandevska-Radunovic V Tags: Angle Orthod Source Type: research

How accurate is Invisalign in nonextraction cases?: Are predicted tooth positions achieved?
BE Abstract OBJECTIVE: To evaluate the accuracy of Invisalign technology in achieving predicted tooth positions with respect to tooth type and direction of tooth movement. MATERIALS AND METHODS: The posttreatment models of 30 patients who had nonextraction Invisalign treatment were digitally superimposed on their corresponding virtual treatment plan models using best-fit surface-based registration. The differences between actual treatment outcome and predicted outcome were computed and tested for statistical significance for each tooth type in mesial-distal, facial-lingual, and occlusal-gingival directions, ...
Source: The Angle Orthodontist - July 7, 2017 Category: Dentistry Authors: Grünheid T, Loh C, Larson BE Tags: Angle Orthod Source Type: research

Correlation between the position of hyoid bone and subregions of the pharyngeal airway space in lateral cephalometry and cone beam computed tomography.
CONCLUSION: The hyoid bone position showed more correlations with oropharynx and hypopharynx airway measurements. The hyoid triangle method was not applicable to 3D images, since it showed a smaller number of measures correlated to the hyoid bone position. PMID: 28686091 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 7, 2017 Category: Dentistry Authors: da Costa ED, Roque-Torres GD, Brasil DM, Bóscolo FN, de Almeida SM, Ambrosano GMB Tags: Angle Orthod Source Type: research

Association between orthodontic treatment and periodontal diseases: Results from a national survey.
Abstract OBJECTIVE: To investigate the association between orthodontic treatment and periodontitis in a nationally representative sample of South Korea. MATERIALS AND METHODS: Data from the Fifth and Sixth Korean National Health and Nutrition Examination Survey (KNHANES V, VI-1, and VI-2), conducted from 2012 to 2014, were used in this study. The final sample size consisted of 14,693 adults aged ≥19 years. Logistic regression analysis was performed to assess the association between orthodontic treatment and periodontitis. RESULTS: The orthodontic treatment group exhibited a lower prevalence of periodo...
Source: The Angle Orthodontist - July 7, 2017 Category: Dentistry Authors: Sim HY, Kim HS, Jung DU, Lee H, Lee JW, Han K, Yun KI Tags: Angle Orthod Source Type: research

Niobium pentoxide phosphate invert glass as a mineralizing agent in an experimental orthodontic adhesive.
Abstract OBJECTIVE: The aim of this study was to develop an experimental orthodontic adhesive and evaluate how adding phosphate invert glass containing niobium pentoxide (PIG-Nb) affected the adhesive's properties. MATERIAL AND METHODS: PIG-Nb was added at 1, 2.5, and 5 wt% to experimental adhesive (75 wt% bisphenol A methacrylate [BisGMA], 25 wt% triethylene glycol dimethacrylate [TEGDMA], 5 wt% colloidal silica and photoinitiator system). The adhesives were evaluated for mineral deposition, degree of conversion (DC), softening solvent by Knoop microhardness (KNH) variation, pH changes, and shear bond streng...
Source: The Angle Orthodontist - July 7, 2017 Category: Dentistry Authors: Altmann ASP, Collares FM, Balbinot GS, Leitune VCB, Takimi AS, Samuel SMW Tags: Angle Orthod Source Type: research

Influence of clinicians' experience and gender on extraction decision in orthodontics.
CONCLUSIONS: A trend was observed in which clinicians with more experience chose an extraction treatment option more frequently in borderline cases than did those with less experience. Clinicians' gender did not play a role in extraction decision making. PMID: 28686094 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 7, 2017 Category: Dentistry Authors: Saghafi N, Heaton LJ, Bayirli B, Turpin DL, Khosravi R, Bollen AM Tags: Angle Orthod Source Type: research

Letters From Our Readers.
PMID: 28678559 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 1, 2017 Category: Dentistry Authors: Verma S, Gupta D Tags: Angle Orthod Source Type: research

Letters From Our Readers.
PMID: 28678560 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 1, 2017 Category: Dentistry Authors: Karydis A, Trojan T, Vassar JW, Fisher J Tags: Angle Orthod Source Type: research

Letters From Our Readers.
PMID: 28678561 [PubMed - in process] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - July 1, 2017 Category: Dentistry Authors: Thakkar S Tags: Angle Orthod Source Type: research

Diagnostic reliability of mandibular second molar maturation in the identification of the mandibular growth peak: A longitudinal study.
CONCLUSIONS: Use of the mandibular second molar maturation is not recommended for planning treatment requiring identification of the mandibular growth peak. PMID: 28657343 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - June 28, 2017 Category: Dentistry Authors: Perinetti G, Sossi R, Primozic J, Ierardo G, Contardo L Tags: Angle Orthod Source Type: research

Relationship between anterior occlusion and frontal sinus size.
Abstract OBJECTIVE: To determine the relationship between anterior occlusion and frontal sinus size. METHODS: The patient database at the Eastman Institute for Oral Health, University of Rochester, was searched for male patients older than 15 years and females older than 13 years of age. After applying inclusion and exclusion criteria, participants' photos and lateral cephalometric and posteroanterior radiographs were examined then classified into a control class I group (n = 20, 15.7 ± 2.7 years) and eight malocclusion groups (n = 136, 16.1 ± 2.1 years). The frontal sinus area on the lateral ce...
Source: The Angle Orthodontist - June 16, 2017 Category: Dentistry Authors: Said OT, Rossouw PE, Fishman LS, Feng C Tags: Angle Orthod Source Type: research

Bone and cortical bone thickness of mandibular buccal shelf for mini-screw insertion in adults.
CONCLUSIONS: Specific sites of the MBS offer enough bone quantity and adequate bone quality for mini-screw insertion. The insertion site with the optimal anatomic characteristics is the buccal bone corresponding to the distal root of second molar, with screw insertion 4 mm buccal to the cementoenamel junction. Considering the cortical bone thickness of optimal insertion sites, pre-drilling is always recommended in order to avoid high insertion torque. PMID: 28598220 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - June 9, 2017 Category: Dentistry Authors: Nucera R, Lo Giudice A, Bellocchio AM, Spinuzza P, Caprioglio A, Perillo L, Matarese G, Cordasco G Tags: Angle Orthod Source Type: research

Comparison of the effects of three surgical techniques on the rate of orthodontic tooth movement in a rat model.
CONCLUSIONS: Corticotomy and corticision, with or without a full mucoperiosteal flap, did not show a significant effect on either the OTM magnitude or alveolar bone response. PMID: 28594231 [PubMed - as supplied by publisher] (Source: The Angle Orthodontist)
Source: The Angle Orthodontist - June 8, 2017 Category: Dentistry Authors: Librizzi Z, Kalajzic Z, Camacho D, Yadav S, Nanda R, Uribe F Tags: Angle Orthod Source Type: research

Peridental bone changes after orthodontic tooth movement with fixed appliances: A cone-beam computed tomographic study.
n A Abstract OBJECTIVE: To quantify treatment-related changes in peridental bone height and thickness in orthodontic patients. MATERIALS AND METHODS: Cone-beam computed tomographs (CBCTs) of 43 patients (24 female, 19 male; mean age: 25 years, 5 months) who underwent orthodontic treatment with multibracket appliances for at least 1 year were chosen for retrospective evaluation. Dehiscence depth and changes in bone width and tooth inclination were determined for 954 teeth. RESULTS: There was a significant decrease in peridental bone height (dehiscence; -0.82 ± 1.47 mm) and bone thickness (-0.56 &pl...
Source: The Angle Orthodontist - May 29, 2017 Category: Dentistry Authors: Jäger F, Mah JK, Bumann A Tags: Angle Orthod Source Type: research

A new elastic slot system and V-wire mechanics.
CONCLUSION: Control of torque for three-dimensional positioning of the teeth in the dental arch with rectangular slot geometry as used in straight-wire therapy is difficult. If torque is bent into the wire, because of the play there is a high risk that either too much, too little, or no moment is transmitted to the teeth. The V-slot archwire/bracket geometry in conjunction with nickel titanium composition has no play and allows a reduction of forces and moments with direct and continuous transmission of torque in the bracket. Because of the elasticity of the bracket, there is an upper limit to the moment possible. PMI...
Source: The Angle Orthodontist - May 22, 2017 Category: Dentistry Authors: Wichelhaus A Tags: Angle Orthod Source Type: research

Cone-beam computed tomography evaluation on the condylar displacement following sagittal split ramus osteotomy in asymmetric setback patients: Comparison between conventional approach and surgery-first approach.
Abstract OBJECTIVE: To compare the condylar displacement following sagittal split ramus osteotomy (SSRO) in asymmetric setback patients between the conventional approach and surgery-first approach and to determine whether the condylar displacement is affected by asymmetric setback in SSRO patients. MATERIALS AND METHODS: This was a retrospective study. The subjects consisted of patients with facial asymmetry who underwent SSRO and had cone-beam computed tomography taken before and 1 month after surgery. They were allocated into the conventional (n = 18) and surgery-first (SF) groups (n = 20). Descriptive, ind...
Source: The Angle Orthodontist - May 22, 2017 Category: Dentistry Authors: Oh MH, Hwang HS, Lee KM, Cho JH Tags: Angle Orthod Source Type: research