A new classification of peri implant gaps based on gap location (A case series of 210 immediate implants)
Based on our collective experiences with gap management around immediate dental implants, wehave proposed a classification of gap type based on the location in relation to implant periphery.Seven types are proposed, and all but one type should heal without gap grafting provided thatflap ‑less surgery and atraumatic extraction have been achieved. The exception is our Type II gapwhere the implant has been placed too far buccally leaving a gap only on the lingual/palatal. In thiscase, the lingual/palatal gap need not be grafted, but the buccal aspect of the implant should bestto augmented to avoid the complications.Key Word...
Source: Dental Research Journal - May 17, 2021 Category: Dentistry Source Type: research

A novel regenerative endodontic procedure in a traumatized immature tooth using amniotic membrane
This article reports a unique and novel case ofsuccessful regenerative endodontic procedure done using amniotic membrane in a traumatizedimmature right maxillary central incisor of an 8 ‑year‑old girl. The clinical and radiographic evaluationdone during the recall visits at 1, 3, 6, 9 and 12 months showed a progressive root growth withapical closure.Key Words: Amnion, dental pulp necrosis, regenerative endodontics, tooth fractures (Source: Dental Research Journal)
Source: Dental Research Journal - May 17, 2021 Category: Dentistry Source Type: research

Fabrication of a customized impression metal jig for an implant ‑supported overdenture with a milled bar
This article describes a modifiedimpression technique using an impression metal jig to enhance the accuracy of final impressionand also to eliminate the need for the try ‑in of resin pattern of the milled bar.Key Words: Computer ‑aided design, dental implant, edentulous jaw, implant‑supported dentalprosthesis (Source: Dental Research Journal)
Source: Dental Research Journal - May 17, 2021 Category: Dentistry Source Type: research

Correlation between maxillary cuspid impaction with available space and anomalies of maxillary lateral incisors
Background: Association of cuspid impaction with adjacent lateral incisor anomalies is undercontroversy. The aim of this study was to investigate the correlation between maxillary cuspidimpaction with dental anomalies.Material and Methods: In this in vitro experimental study, the material consisted ofpretreatment dental records of 102 patients with at least one palatally or buccally displacedimpacted permanent cuspid (palatal and buccal impaction groups). They were matched with acomparison control group of 102 patients having normally erupted maxillary cuspids. Availablespace, mesiodistal dimensions of teeth, and morpholog...
Source: Dental Research Journal - May 17, 2021 Category: Dentistry Source Type: research

Surface characterization and frictional force between stainless steel brackets and archwires in orthodontic patients using chlorhexidine ‑ and Persica‑containing mouthrinses: A randomized controlled trial
Background: The aim of this study was to compare the effect of chlorhexidine ‑ and Persica‑containingmouthrinses on the surface characterization of orthodontic appliance and friction between theorthodontic stainless steel wires and brackets.Materials and Methods: In this randomized controlled trial, 75 orthodontic patients (aged13 –30) were allocated (n = 25) into two experimental groups (prescribed by Persica‑ orchlorhexidine ‑containing mouthrinse) and one control group (no prescription). The ovoid stainlesssteel archwires were placed, and the maxillary first premolar stainless steel edgewise bracketswere l...
Source: Dental Research Journal - May 17, 2021 Category: Dentistry Source Type: research

Utilization of dental care in Iranian pregnant women: Findings from a population ‑based study
Background: Although dental care attendance during pregnancy has been recommended byguidelines and institutions, the demand for dental services is still low among pregnant women. Theaim of this study was to examine the prevalence of not receipt dental care and also determinantsof that during pregnancy.Materials and Methods: This population ‑based study was conducted on 4071 mothers in 10provinces of Iran, during 2014 –2015. We calculated the prevalence of not receipt of dental care, andreasons for nonreceipt of care. We used logistic regression to estimate odds of nonreceipt of careby demographics variables. In the...
Source: Dental Research Journal - May 17, 2021 Category: Dentistry Source Type: research

Effect of accelerated aging and double application on the dentin bond strength of universal adhesive system
Background: Despite the many advantages of simplified adhesive systems, there are concernsabout the durability of the adhesive layer over time. The aim was to investigate the effects of variousaging methods and double application of an adhesive layer on the bond strength of the universaladhesive system using etch ‑and‑rinse (ER) and self‑etch (SE) strategies.Materials and Methods: In this in vitro study, the occlusal enamel of 120 extracted, intact humanthird molars was removed to expose the dentin. Then, the samples were randomly divided into fourgroups of thirty according to All ‑Bond Universal (ABU) adhesive app...
Source: Dental Research Journal - May 17, 2021 Category: Dentistry Source Type: research

Ranking the soft skills of the dental profession based on the importance in job performance: A mixed method study in Isfahan and Mazandaran Universities of Medical Sciences
Conclusion: Identify and prioritize the soft skills can help to improve the quality of performancethe dental profession. Therefore, it is recommended to integrate these skills into the dentistrycurriculum. Moreover, by increasing the number of studies the essential backgrounds for developingsoft skills in dentistry education will be provided.Key Words: Dentistry, education, quality of performance, soft skills (Source: Dental Research Journal)
Source: Dental Research Journal - May 17, 2021 Category: Dentistry Source Type: research

Microleakage of different temporary luting agents used for cementing provisional restorations on custom cast posts and cores
This study aimed to compare the effect of four temporary luting agents on preventingthe coronal microleakage of teeth restored with custom cast post and core.Materials and Methods: In this in vitro original study, after removing 9 mm of gutta percha fromroot canals of 32 single ‑canaled premolars, the acrylic resin patterns of the post and core werefabricated. Patterns were cast with Ni ‑Cr metal alloy and then cemented with glass ionomer. Usingself ‑curing acrylic resin, provisional restorations were made. Then, teeth were randomly allocatedto four groups for each temporary cement including zinc oxide eugenol (Temp ...
Source: Dental Research Journal - May 17, 2021 Category: Dentistry Source Type: research

COVID ‑19: Implications on dental profession and precautionary guidelines
The current global spread of severe acute respiratory syndrome coronavirus 2 (SARS ‑CoV‑2) andits associated coronavirus disease (COVID ‑19), has grasped the attention of entire internationalcommunity and has caused widespread public health concerns. All the efforts taken globally to curtailthe novel COVID ‑19; the outbreak is still on a rise owing to the community spread pattern of thisinfection. COVID ‑19 is a zoonotic infection that, like other coronavirus infections, is believed to havebeen originated in bats and pangolins, and later transmitted to humans. Once in the human body, thiscoronavirus (SARS ‑CoV...
Source: Dental Research Journal - April 6, 2021 Category: Dentistry Source Type: research

Canalicular adenoma of the hard palate: A rare case report
We present a case of CA of the hard palate that presented in a 29 ‑year‑old female patient.The histopathological and immunohistochemical findings showed typical features of CA and intenseexpression of pan ‑cytokeratin and S‑100 protein. We also review its differential diagnosis fromother salivary gland tumors.Key Words: Adenoma, canalicular, minor salivary gland, palate (Source: Dental Research Journal)
Source: Dental Research Journal - April 6, 2021 Category: Dentistry Source Type: research

Effect of casein ‑phosphopeptide amorphous calcium phosphate and fluoride with/without erbium, chromium‑doped yttrium, scandium, gallium, and garnet laser irradiation on enamel microhardness of permanent teeth
This study compared the effect of CPP ‑ACP and fluoridewith/without Erbium, chromium ‑doped yttrium, scandium, gallium, and garnet laser irradiation onenamel microhardness of permanent teeth.Materials and Methods: This in vitro experimental study evaluated 35 extracted third molars. Theteeth were decoronated, and the crowns were split into buccal and lingual halves. The samples wererandomly divided into seven groups (n = 10) of GC Tooth Mousse, MI Paste Plus, laser, fluoride varnish,laser + GC Tooth Mousse, laser + MI Paste Plus, and laser + fluoride varnish. The baseline microhardnesswas measured before the interventi...
Source: Dental Research Journal - April 6, 2021 Category: Dentistry Source Type: research

Effect of coating on the color and surface hardness of the surface of dental ceramics
Conclusion: Although BN –Cr coating in this thickness had a negative effect on color, it increasedthe hardness of the ceramics and could be useful in the palatal region.Key Words: Ceramics, color, hardness, sputter coating (Source: Dental Research Journal)
Source: Dental Research Journal - April 6, 2021 Category: Dentistry Source Type: research

Effect of Er:YAG laser radiation on pull ‑out fracture load of esthetic posts luted to root canal dentin with various resin cements
This study investigated the influence of erbium ‑doped: yttrium aluminumgarnet (Er:YAG) laser on the pull ‑out fracture load of fiber‑reinforced composite (FRC) posts lutedto dentin with different resin cements.Materials and Methods: In this in vitro experimental study, 90 premolars were endodonticallytreated. The post spaces were prepared, and the teeth were divided into three groups dependenton the cement applied for luting FRC posts: Group 1: An etch ‑and‑rinse system, Group 2: A self‑etchcement, and Group 3: A self ‑adhesive cement. After 6 months’ storage and thermocycling, eachgroup was divided in...
Source: Dental Research Journal - April 6, 2021 Category: Dentistry Source Type: research

The effect of Remin Pro on the microhardness of initial enamel lesions in primary teeth: An in vitro study
Background: Remineralization is currently considered a treatment option for many clinicians. Thepresent study was conducted to compare the effect of three remineralizing agents on microhardnessof initial caries lesions in primary teeth.Materials and Methods: In this in vitro study, 96 enamel samples were prepared. Microhardnesswas first measured for all the samples using the Vickers microhardness test. After developing theinitial caries lesions, the microhardness of all the demineralized samples was measured, and thesamples were then divided into four groups (n = 24). Casein phosphopeptide –amorphous calciumphosphate...
Source: Dental Research Journal - April 6, 2021 Category: Dentistry Source Type: research

Effect of cavity design and material type on fracture resistance and failure pattern of molars restored by computer ‑aided design/ computer‑aided manufacturing inlays/onlays
This study was conducted to evaluate the effect of cavity designand material type on fracture resistance and failure pattern of molars restored by computer ‑aideddesign/computer ‑aided manufacturing (CAD/CAM) inlays/onlays.Materials and Methods: In this in vitro study, 55 human maxillary molars were embeddedin resin blocks and divided into control group (CG) and five main groups: Group 1: Inlay,Group 2: Conventional onlay/mesiobuccal (MB), Group 3: Conservative onlay/MB, Group 4:Conventional onlay/MB and distobuccal (DB), and Group 5: Conservative onlay/MB andDB. Then, each group was divided into two subgroups: (A) Cer...
Source: Dental Research Journal - April 6, 2021 Category: Dentistry Source Type: research

The effect of sodium hypochlorite enamel pretreatment on the shear bond strength of fissure sealant using a resin ‑modified glass ionomer cement and a fluoride‑releasing self‑etch resin adhesive
Background: The relative high caries risk of pits and fissures highlights the importance of protectingthese areas. The aim is to determine the effect of sodium hypochlorite (NaOCl) on the shear bondstrength (SBS) of resin ‑based pit and fissure sealant (RBPFS) material to enamel using resin‑modifiedglass ionomer cement (RMGIC) and fluoride ‑releasing self‑etch resin (FRSE) adhesives.Materials and Methods: Extracted third molar teeth without carious lesions or defects weredivided into five experimental groups (n = 20). Group A: (Control group) etch (35% phosphoric acid)for 15 s and RBPFS applied. Group B: Etch for 1...
Source: Dental Research Journal - April 6, 2021 Category: Dentistry Source Type: research

The relationship between temperament and behavior in 3 –7‑year‑old children during dental treatment
Background: Various factors affect child behavior in different situations such as in a dental clinic.The purpose of this study was to investigate the relationship between temperament and childbehavior during routine dental treatment.Materials and Methods: The present study is a descriptive ‑analytic study that included 199children aged 3 –7‑years from patients referred to a dental clinic of Guilan University of MedicalSciences in 2017 –2018. The Children’s Behavior Questionnaire, which is specific to children aged3 –7 years, was used to assess children’s dental temperament. Children’...
Source: Dental Research Journal - April 6, 2021 Category: Dentistry Source Type: research

A new teaching model with artificial teeth containing simulated pulpal tissue
Conclusion: The artificial teeth tested have the potential to replace the natural teeth in preclinical training.Key Words: Artificial teeth, dental education, endodontics (Source: Dental Research Journal)
Source: Dental Research Journal - April 6, 2021 Category: Dentistry Source Type: research

Effects of three commercial toothpastes incorporating “chitosan, casein phosphopeptide‑amorphous calcium phosphate, sodium monofluorophosphate, and sodium fluoride” on remineralization of incipient enamel caries in the primary dentition: A preliminary in
Background: Given the importance of primary dental caries, assessment of new preventive/therapeutic materials is necessary. In light of the scarcity of such studies on the role of new agentsin primary dentition, this study assessed the efficacy of three commercial toothpastes with differentingredients on remineralization of early caries in the primary dentition.Materials and Methods: Thirty ‑nine intact primary canines were used in this in vitro experimentalstudy. The baseline microhardness of enamel was measured. Particular demineralizer was used for96 h and then secondary microhardness was measured. Then, samples were ...
Source: Dental Research Journal - December 27, 2020 Category: Dentistry Source Type: research

Dental team and infection control for the COVID ‑19: (A short review of the current guidelines)
Conclusion: Individuals with ‘possible’ or ‘confirmed’ COVID‑19 should not be seen for routinedental care. Multi ‑step approach should begin before the patient arrives on the office and includesguidance regarding their arrival and it should be completed duration of the affected patient ’spresence in the practice. Accurate travel history, fever or history of fever, acute respiratory infectionand severe respiratory infection without fever requiring hospitalization should be checked by staffvia patients telephoning to make an appointment and finally the primary infection control goal isto pre...
Source: Dental Research Journal - November 17, 2020 Category: Dentistry Source Type: research

An unusual case of tricho –dento–osseous syndrome
In this study, we report a case whoseprimary diagnosis was alopecia and came for extraction of her third molars, but after clinical andradiographic examination, it was found that the cause of her disease was something different.Key Words: Alopecia, genetic diseases, tricho –dento–osseous syndrome (Source: Dental Research Journal)
Source: Dental Research Journal - November 17, 2020 Category: Dentistry Source Type: research

Perception and willingness toward oral pathology and histology as a subject and profession among Indian dental undergraduates
Conclusion: The present scenario of Oral Pathology and Histology as a subject is alarming andin that scenario it should be our prime concern to change the attitude of students toward thesubject who perceive it as a nonclinical subject having a lesser scope for practice with a need tobroaden the scope of the specialty and to make it more practical.Key Words: Attitude, dental students, oral pathology, scenario (Source: Dental Research Journal)
Source: Dental Research Journal - November 17, 2020 Category: Dentistry Source Type: research

Is there a change in the mandibular cortical shape index in panoramic radiographs over time? A longitudinal retrospective study
Background: A longitudinal study design was conducted to assess the mandibular cortical shapeindex (CI) in panoramic radiographs retrospectively. An association between age and a deteriorationof different radiological parameters on panoramic radiographs was stated in cross ‑sectional studies.As longitudinal studies are rare, this one is designed to assess radiological changes over time.Materials and Methods: In this longitudinal study, The archive of the dentomaxillofacial radiologydepartment was searched for panoramic radiographs of patients who have two radiographs witha time lapse of at least 15 years between both. Th...
Source: Dental Research Journal - November 17, 2020 Category: Dentistry Source Type: research

Salivary peptide human neutrophil defensin1 –3 and its relationship with early childhood caries
This study aimed to evaluate the relationship of the level of salivary peptides humanneutrophil defensin (HNP) 1 –3 in children with and without early childhood caries (ECC).Materials and Methods: This in vitro study was conducted among 86 children of age 3 –6 years whowere divided into two groups: Group 1 – children with ECC (n = 43) and Group 2 – children withoutECC (n = 43). Saliva samples were collected, and salivary peptide HNP1 –3 levels were analyzed usingenzyme ‑linked immunosorbent assay. The data collected were subjected to appropriate statisticalanalysis. Independent sample t ‑t...
Source: Dental Research Journal - November 17, 2020 Category: Dentistry Source Type: research

Comparison of routine and microwave ‑assisted decalcification of bone with or without teeth: A histologic study
Conclusion: The use of microwave technology can accelerate decalcification of bone and teethof sheep mandibles and at the same time preserve tissue structure and staining quality. Furtherstudies are required to help select the best demineralizing agent, especially in specimens containingbone and teeth.Key Words: Bone and bones, decalcification technique, microwaves, tooth (Source: Dental Research Journal)
Source: Dental Research Journal - November 17, 2020 Category: Dentistry Source Type: research

Effect of irrigation solutions on the coronal discoloration induced by mineral trioxide aggregate cements containing different radiopacifiers
Background: The aim of this study was to assess the discoloration of coronal tooth structureirrigated with different irrigation solutions and filled with calcium silicate ‑based materials containingbismuth oxide or calciumzirconia complex as radiopacifier.Materials and Methods: In this ex vivo study, 72 bovine enamel ‑dentin blocks were prepared anddivided into three groups. The dentinal cavities in each group were irrigated with 5.25% sodiumhypochlorite (NaOCl), 2% chlorhexidine (CHX), or normal saline for 30 min. After that, irrigationsolutions were removed using a cotton pellet. Each group was then randomly divided ...
Source: Dental Research Journal - November 17, 2020 Category: Dentistry Source Type: research

Evaluation of reverse torque values and failure loads of three different abutment designs with internal connections
Background: High percentage of biomechanical complications such as screw loosening in dentalimplants can be related to implant –abutment (I/A) connection properties which affect the behaviorof implant assembly against functional loads in the oral cavity. The aims of the present study were tocompare the reverse torque values (RTVs) and failure loads of three abutment types with internalMorse taper connection.Materials and Methods: In this experimental in vitro study, eighteen implants (4.5 mm × 10 mmbone level implants, Implantium, Dentium Co, Seoul, South Korea) were divided into threegroups with different abut...
Source: Dental Research Journal - November 17, 2020 Category: Dentistry Source Type: research

Comparative study of different cytotoxicity of bonding systems with different dentin thickness on L929 cell line: An experimental study
Background: Dentin ‑bonding agents should have good biocompatibility as they come into closeand prolonged contact with vital dentin. The present study aimed to evaluate and compare thecytotoxicity of total etch and self ‑etch dentin bonding systems with two different dentin thicknesson L929 cell line.Materials and Methods: In this in vitro study 80 Class I cavities were prepared on the occlusalsurfaces. The teeth were randomly divided to two groups of 40 each based on two RDT 0.5 mmand 1.5 mm. Samples were further subdivided into four subgroups of 10. Group 1: Adper Scotchbond Multi-Purpose (SBMP), Group 2: Adper Singl...
Source: Dental Research Journal - November 17, 2020 Category: Dentistry Source Type: research

Resistance to fracture of endodontically treated teeth: Influence of the post systems and cements
Conclusion: Different cementing agents have no effect on the fracture strength of devitalizedteeth, unlike the use of posts, in which the use of accessory post proved more resistant whencompared to the anatomical post.Key Words: Dental cements, dental pins, tooth fractures (Source: Dental Research Journal)
Source: Dental Research Journal - November 17, 2020 Category: Dentistry Source Type: research

Fracture resistance of pulpotomized and composite ‑restored primary molars: Incremental versus bulk‑fill techniques
Conclusion: Bulk ‑fill composite is recommended for reinforcing the remaining tooth structureafter the primary molar pulpotomy procedure. Time ‑saving characteristics of this material areclinically important for reducing appointment time for children.Key Words: Bulk ‑fill composite, conventional composite, fracture resistance, primary molar,pulpotomy (Source: Dental Research Journal)
Source: Dental Research Journal - November 17, 2020 Category: Dentistry Source Type: research

Biological posts and crown: An esthetic recovery of smile
Anterior teeth fracture is a common form of dental trauma that mainly affects children andadolescents. Maxillary incisors are the most commonly affected teeth. Loss of coronal toothstructure might affect esthetics and function. In recent decades, dentistry has shown many scientificand technological advances in restorative materials. However, no synthetic restorative materialcan replicate the natural tooth structure. Hence, the use of natural tooth as a restorative materialhas been suggested in literature and is termed as a biological restoration. The present case reportrepresents the successful use of biological post and c...
Source: Dental Research Journal - September 6, 2020 Category: Dentistry Source Type: research

Can oral health ‑related quality of life be worsened by dental appointments?
Background: Constraints in dental access and limitations associated with service deliverynecessitate the use of an appointment system in patient care. This research aimed to identifyassociation between treatment appointments and oral health ‑related quality of life (OHRQOL) indental patients at the Lagos State University Teaching Hospital.Materials and Methods: This was a descriptive study that surveyed 412 individuals.Socio ‑demographic, clinical history, and OHRQOL data was collected using a structured intervieweradministered questionnaire. Visual analog scale (VAS) was used to assess inconvenience while theoral heal...
Source: Dental Research Journal - September 6, 2020 Category: Dentistry Source Type: research

An in vitro evaluation of the compressive strength and shear bond strength of resin ‑modified glass‑ionomer cement containing purified powder of Salvia officinalis
Conclusion: The addition of purified powder of S. officinalis to RMGI powder does not affectcompressive strength and shear bond strength of RMGI cement. (Source: Dental Research Journal)
Source: Dental Research Journal - September 6, 2020 Category: Dentistry Source Type: research

Risk factors for anterior open bite: A case –control study
Conclusion: Tongue interposition and dolichocephalic facial pattern were risk factors for developingAOB. (Source: Dental Research Journal)
Source: Dental Research Journal - September 6, 2020 Category: Dentistry Source Type: research

Fenestration and dehiscence in the alveolar bone of anterior maxillary and mandibular teeth in cone ‑beam computed tomography of an Iranian population
This study was designed to determine the incidence of bony fenestrations anddehiscences associated with the anterior teeth by using cone ‑beam computed tomography images.Materials and Methods: A total of 216 images (1189 teeth) were included in this cross ‑sectionalstudy. The presence of fenestration and dehiscence at the buccal and lingual/palatal surfaces andalso their relative levels on the roots of the teeth were determined. McNemar ’s, Chi‑square, andCochran ’s Q tests were used for data analysis. A value of P
Source: Dental Research Journal - September 6, 2020 Category: Dentistry Source Type: research

Height and dental caries among 13 ‑year‑old adolescents in India: A sociobehavioral life course approach
Conclusion: The present study showed a significant negative correlation between height and dentalcaries. However, since both caries and height are a dynamic phenomenon, hence a longitudinal studyexploring the possible relationship should be considered. (Source: Dental Research Journal)
Source: Dental Research Journal - September 6, 2020 Category: Dentistry Source Type: research

Quantitative evaluation of remineralizing potential of three agents on artificially demineralized human enamel using scanning electron microscopy imaging and energy ‑dispersive analytical X‑ray element analysis: An in vitro study
Background: The aim of this study is to quantitatively evaluate the remineralization potentialof three remineralizing systems as follows: fluoride, casein phosphopeptide ‑amorphous calciumphosphate (CPP ‑ACP), and CPP‑ACP with fluoride, under scanning electron microscope withenergy ‑dispersive X‑ray analysis.Materials and Methods: In this in vitro study A total of 40 enamel specimens were preparedfrom the buccal or lingual surfaces of human premolars extracted for orthodontic reason.Specimens were then placed in demineralizing solution for 96 h, to produce artificial caries ‑likelesion. Calcium and phosphate we...
Source: Dental Research Journal - September 6, 2020 Category: Dentistry Source Type: research

Oral health status, self ‑perceived dental needs, and barriers to utilization of dental services among people with psychiatric disorders reporting to a tertiary care center in Haryana
Conclusion: The findings of this study suggest that oral health concerns of this marginalized sectionof the population are unrecognized and should be given prominence by psychiatrists. (Source: Dental Research Journal)
Source: Dental Research Journal - September 6, 2020 Category: Dentistry Source Type: research

Association of temporomandibular joint morphology in patients with and without temporomandibular joint dysfunction: A cone ‑beam computed tomography based study
Background: The etiology of temporomandibular disorders (TMDs) is complex and associatedwith multiple predisposing and initiating factors. Articular eminence morphology and steep eminenceinclination have been postulated as the etiological factors, but there has been no clear evidenceof association of morphology of the temporomandibular joints (TMJ) complex as a probablepredisposing factor in the pathogenesis of TMDs.Materials and Methods: This was a cross ‑sectional, case–control study, and cone‑beam computedtomography scans, and the evaluation was performed for 60 joints in 30 patients with symptomaticTMDs and f...
Source: Dental Research Journal - September 6, 2020 Category: Dentistry Source Type: research

A spectroscopic assessment of interaction between 4% articaine hydrochloride with adrenaline and various endodontic irrigants
Conclusion: 3% NaOCl interacted with 4% AHa leading to the formation of a precipitate MAMCwhich is reported to exhibit the least toxicity. Until the precipitate is studied further, it would beadvisable to avoid the immediate use of NaOCl following administration of intrapulpal anestheticsolution with articaine hydrochloride (with adrenaline). (Source: Dental Research Journal)
Source: Dental Research Journal - September 6, 2020 Category: Dentistry Source Type: research

Comparison of the effects of toothpastes containing nanohydroxyapatite and fluoride on white spot lesions in orthodontic patients: A randomized clinical trial
Background: Studies show that fluoride (F) and nano ‑hydroxyapatite (nano‑HA) would result inremineralization of white spot lesions (WSLs), which are among the most prevalent consequencesof fixed orthodontic treatment. The present study evaluates and compares the clinical effects of anIranian toothpaste containing nano ‑HA with F‑containing one on early enamel lesions.Materials and Methods: In this randomized clinical trial study, 50 patients who had received fixedorthodontic treatment were recruited immediately after debonding. Three photographs, including frontal,lateral right and left views of occlusion, were ob...
Source: Dental Research Journal - September 6, 2020 Category: Dentistry Source Type: research

Effects of different stretching extents, morphologies, and brands on initial force and force decay of orthodontic elastomeric chains: An in vitro study
Conclusion: OT might be the most preferable brand. Closed chains might usually show betterresults, especially in OT chains. Instead of using chains half of the size of the space (to elongate for100%), longer chains should be used to stretch for lesser extents. (Source: Dental Research Journal)
Source: Dental Research Journal - September 6, 2020 Category: Dentistry Source Type: research

Custom abutments on tilted implants in the maxilla: A clinical report
The aim of this work is to describe a case of severe disparallelism between two implants supportinga cement ‑retained bridge, placed in the maxilla, employing two custom‑angled abutments. Fracturedabutment screw and fractured abutment involved two implant restorations in the maxilla. Onceprosthetic components have been removed, a new prosthetic rehabilitation has been planned. Thedivergence between the implants was measured, obtaining an angle of divergence of 39 °. Then, twocustom ‑angled titanium abutments and two metal‑ceramic splinted crowns were realized. (Source: Dental Research Journal)
Source: Dental Research Journal - August 3, 2020 Category: Dentistry Source Type: research

Inequality in dental expenditures among Iranian households: A cross ‑sectional survey using the National Health Accounts
Conclusion: Dental expenditures were progressive in Iran, and the rich have paid more share forthese services. It seems that implementing insurance programs, changes in the financing of dentalcare, development of insurance basic benefits package, supporting programs for the poor, adoptingeducational policies, and promoting oral health for vulnerable people can have an effective role indecreasing inequality in using dental services (Source: Dental Research Journal)
Source: Dental Research Journal - August 3, 2020 Category: Dentistry Source Type: research

Effect of locally delivered doxycycline as an adjunct to scaling and root planing in the treatment of periodontitis in smokers: A systematic review of randomized controlled trials with meta ‑analysis and trial sequential analysis
Conclusion: Local doxycycline as an adjunct to SRP significantly improved clinical attachment insmokers with periodontitis and can be recommended. Studies are required with long ‑term follow‑upand patient ‑related outcome data. (Source: Dental Research Journal)
Source: Dental Research Journal - August 3, 2020 Category: Dentistry Source Type: research

Effect of deep cryogenic treatment on cyclic fatigue resistance of controlled memory wire nickel ‑titanium rotary instruments
Conclusion: Deep cryotherapy of NiTi endodontic files cannot improve the cyclic fatigue resistanceof HyFlex files, but further studies are required to evaluate these cryogenically treated NiTi filesclinically. (Source: Dental Research Journal)
Source: Dental Research Journal - August 3, 2020 Category: Dentistry Source Type: research

Thermal rise during photopolymerization and degree of conversion of bulk fill and conventional resin composites
Background: Light curing of resin composite is associated with a thermal rise that may have harmfuleffect on the health of the vital pulp. In addition, desirable polymerization is important to achievemechanical properties and clinical function. The purpose of this in ‑vitro study was to compare thethermal rise under normal dentin during photopolymerization and degree of conversion (DC) ofbulk fill and conventional resin composite using continuous high ‑ and soft‑start mode.Materials and Methods: In this in ‑vitro study, Cl I cavities with a dimension of 4 mm × 4 mm × 4 mmand remaining dentin thickness o...
Source: Dental Research Journal - August 3, 2020 Category: Dentistry Source Type: research

The effect of tapered master gutta ‑percha cone on apical seal of straight and curved root canals prepared with nickel–titanium rotary files
Background: Gutta ‑percha has been the predominant root canal filling material which is developedwith different taper. Canal obturation fixed with nickel –titanium (NiTi) instruments and taperedgutta ‑percha master cone and lateral condensation is advantageous because it is clinically effectualand appears to result in a radiographically acceptable outcome. The aim of this in vitro study wasto determine the effect of tapered master gutta ‑percha cone on apical seal of straight and curvedroot canals using NiTi rotary files.Materials and Methods: In this in vitro study total of 130 mandibular molars were selected ...
Source: Dental Research Journal - August 3, 2020 Category: Dentistry Source Type: research

The comparison of the salivary concentration of interleukin ‑17 and interleukin‑18 in patients with chronic periodontitis and healthy individuals
Conclusion: Within the limitations of the present study, it may be suggested that an elevated salivaryIL ‑18 level in chronic periodontitis patients has the potential to be a biomarker for periodontaltissue destruction. (Source: Dental Research Journal)
Source: Dental Research Journal - August 3, 2020 Category: Dentistry Source Type: research