{"title":"A comparative evaluation of retention of record bases fabricated digitally in various types of posterior palatal seal area","authors":"Swapna Bettanapalya Venkatesh , Vaishnavi M. Nayak , Kavishma Sulaya , Smitha Sammith Shetty","doi":"10.1016/j.jobcr.2024.11.004","DOIUrl":"10.1016/j.jobcr.2024.11.004","url":null,"abstract":"<div><h3>Objectives</h3><div>Intraoral scanners used for the fabrication of milled and 3D-printed complete dentures simplify the procedure. However, its effectiveness in recording the functional peripheral seal area needs to be researched. Therefore, this study aims to assess the retention of conventional, milled and 3D-printed denture bases made from conventional impression technique and digital scans in different types of post palatal seal area.</div></div><div><h3>Material and method</h3><div>Completely edentulous participants were divided into group A and group B based on type of posterior palatal seal area. Each group received three denture bases fabricated using compression molding, milling and 3D printing. The retention was evaluated using a digital dynamometer at 45° and 90° inclination.</div></div><div><h3>Results</h3><div>The ANOVA test revealed statistically significant difference in the retention of denture bases fabricated using three different techniques. When compared between the three groups at 45 and 90°, statistically significant difference in the retentive values between the control and other two groups were observed.</div></div><div><h3>Conclusion</h3><div>All three of the fabrication processes have retention that falls within a clinically acceptable range. 3D printed dentures had better adaptation on the PPS area whereas the milled dentures had a better peripheral seal although the conventional process showed highest retention values.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"15 1","pages":"Pages 11-15"},"PeriodicalIF":0.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mouth opening variables amongst the North Indian population","authors":"Disha Dixit, Pavitra Rastogi, Nand Lal, Rameshwari Singhal","doi":"10.1016/j.jobcr.2024.11.003","DOIUrl":"10.1016/j.jobcr.2024.11.003","url":null,"abstract":"<div><h3>Background</h3><div>For the clinician to conveniently perform an extensive oral examination, it is required to have a known normal range of maximum mouth opening (MMO). This study aims to establish a standard for calculating the normal range of mouth opening in the adult population of North India. The results of this research will have clinical implications for the treatment and diagnosis of diseases that affect the mouth opening in adults, either directly or indirectly.</div></div><div><h3>Aim</h3><div>To evaluate mean mouth opening in North Indian population and establish their correlation with age and gender.</div></div><div><h3>Method</h3><div>662 adults from North Indian population, 317 males and 345 females in the age range of 18–80 years were evaluated on their consent. Maximum mouth opening was measured using calibrated vernier calliper scale. This study was conducted in the Department of Periodontology, Faculty of Dental Sciences, King George Medical University, Lucknow.</div></div><div><h3>Results</h3><div>Males exhibited a higher mean MMO of 48.0 mm compared to females, who had a lower mean MMO of 45.1 mm among North Indian population of the country. In the statistical comparison of MMO between males and females within each age group, the results showed no significant differences.</div></div><div><h3>Conclusion</h3><div>Mouth opening of females is less than males in all age groups and it seems to decrease with age in all age groups in both males and females. The variability of MMO with age appears statistically similar for both genders.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"15 1","pages":"Pages 1-4"},"PeriodicalIF":0.0,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Neil Vincent Lewis, Shalini Aggarwal (Dr), Prasanna Dhatavkar
{"title":"Comparative evaluation of the degree of conversion of an 8th-generation bonding agent when applied to normal dentin or caries-affected dentin, pre-treated with MMP inhibitors – An in vitro study","authors":"Neil Vincent Lewis, Shalini Aggarwal (Dr), Prasanna Dhatavkar","doi":"10.1016/j.jobcr.2024.10.010","DOIUrl":"10.1016/j.jobcr.2024.10.010","url":null,"abstract":"<div><h3>Introduction</h3><div>The degree of conversion of dentin bonding agents contributes to the success of final restorations in adhesive dentistry. It is clinically relevant, as it is directly related to the overall bond strength that maintains these restorations in place and prevents marginal deterioration. However, Matrix metalloproteinases (MMPs) present within the dentin substrate have been known to have a deleterious effect on the bond stability, due to their collagenolytic activity. Inhibition of the effects of MMPs has been studied, and the use of a pre-treatment protocol that includes MMP inhibiting agents before bonding procedures has been explored, and has been found to increase bond strengths. However, the effect that MMP inhibitors have on dental adhesives has not yet been explored, particularly when being used in caries-affected-dentin (CAD). This study aims to report the degree of conversion of an 8th-generation dentin bonding agent in sound dentin (SD) vs caries-affected dentin after pre-treatment using MMP inhibitors.</div></div><div><h3>Materials & methods</h3><div>60 dentin discs were divided into groups of sound and affected dentin, and pretreated with either Cranberry extract or mulberry extract was applied to half of the discs in each group, followed by the application of an eight-generation bonding agent to the pre-treated discs, which were then light cured. The degree of conversion of the adhesive was calculated using ATR-FTIR spectroscopy.</div></div><div><h3>Results</h3><div>The degree of conversion was found to be the highest in the samples of sound dentin which were pre-treated with Mulberry extract.</div></div><div><h3>Conclusion</h3><div>Pre-treatment of the dentin with MMP inhibitors led to an increase in the degree of conversion in sound dentin but not in CAD.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"14 6","pages":"Pages 808-814"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Antimicrobial role of Lavandula angustifolia towards Candida albicans, Streptococcus mutans, Staphylococcus aureus and anti-adherence effect on denture base resin","authors":"Anitha Kuttae Viswanathan , Rajkumar Krishnan","doi":"10.1016/j.jobcr.2024.10.014","DOIUrl":"10.1016/j.jobcr.2024.10.014","url":null,"abstract":"<div><h3>Objectives</h3><div>The objective of the study was to determine the antimicrobial efficacy of Lavandula angustifolia (True Lavender extract) towards Candida albicans, Streptococcus mutans, Staphylococcus aureus pathogens. Varying proportions of the extract was incorporated into polymethyl methacrylate (PMMA) denture base resin and the anti-adherent effect was investigated.</div></div><div><h3>Methods</h3><div>An in-vitro study was performed after pure extract was obtained from Lavandula angustifolia (LA) flowers using a solvent based hot extraction process. Chromatographic analysis and computational molecular docking were done to analyze its phytoconstituents with potential target-ligand bond. Tests of antimicrobial susceptibility, minimum inhibitory concentration, minimum bactericidal and fungicidal dosages and in-vitro cytotoxicity were performed. Different proportions of LA extract (0, .5, 1.0, 1.5, and 2.0 %) were added to PMMA resin to assess anti-adherence property. Obtained data were statistically analyzed with One-way ANOVA followed by Tukey post-hoc tests.</div></div><div><h3>Results</h3><div>The reports revealed significant antimicrobial susceptibility against the test pathogens compared to control drugs (P > 0.05). A minimum concentration of .02 mg of lavender extract inhibited microbial growth with low cytotoxicity (P < 0.05). The highest anti-adherent activity was observed in the .5 % LA-incorporated PMMA resin group (P = 0.0001).</div></div><div><h3>Conclusions</h3><div>Incorporating lavender extract into denture base resin demonstrated promising antimicrobial properties. This investigation encourages further research to understand its effects on mechanical and physical properties of reinforced dental resins.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"14 6","pages":"Pages 815-824"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lekshmi Anand , P. Gayathri , Vineetha Karuveettil , M. Anjali
{"title":"Top 100 most cited economic evaluation papers of preventive oral health programmes: A bibliometric analysis","authors":"Lekshmi Anand , P. Gayathri , Vineetha Karuveettil , M. Anjali","doi":"10.1016/j.jobcr.2024.10.012","DOIUrl":"10.1016/j.jobcr.2024.10.012","url":null,"abstract":"<div><h3>Objective</h3><div>To identify the trends of the top 100 cited articles on economic evaluation in preventive oral health programs.</div></div><div><h3>Methods</h3><div>Top 100 papers involving economic evaluation or cost analysis of preventive oral health programs were selected by querying Scopus and Web of Science databases. Bibliometric analysis was performed using the Bibliometrix tool in R Studio. Performance analysis and science mapping were performed for these 100 articles. Performance analysis included publication-related metrics, citation-related metrics, and citation-publication-related metrics. Science mapping provided information on citation analysis, co-citation analysis, bibliographic coupling, co-word analysis, and co-authorship details.</div></div><div><h3>Results</h3><div>The total citation number of the top 100 most cited articles ranged from 4 to 98, with publication dates spanning from 1978 to 2023. The majority of articles (33.70 %) originated from the USA, while Community Dentistry and Oral Epidemiology stood out as the journal with the highest number of articles published in the top 100 (16 out of 100). Griffin PM emerged as the most cited author, based on the frequency measurement of the number of papers. Program data economic evaluation was the most commonly reported study design, and fluoridation programs were the most frequent topic. The most reported type of economic analysis performed in the articles was cost-effectiveness analysis.</div></div><div><h3>Conclusion</h3><div>The bibliometric analysis of the top 100 most-cited articles on economic evaluation of preventive oral health programs revealed the lacunae in the research literature on this topic. Therefore, preventive oral health programs should be economically evaluated to eliminate the disparity in resource allocation particularly in upper middle income and low-income countries.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"14 6","pages":"Pages 802-807"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pharyngeal airway dimensions and hyoid bone position in children with class II malocclusion and sleep problems: A cross sectional study","authors":"Shreya S , Vabitha Shetty , Kavitha Ragu","doi":"10.1016/j.jobcr.2024.11.001","DOIUrl":"10.1016/j.jobcr.2024.11.001","url":null,"abstract":"<div><h3>Objective</h3><div>To evaluate the pharyngeal airway width and hyoid bone position in children with class II malocclusion and a positive history of sleep problems.</div></div><div><h3>Methods</h3><div>60 children aged 8–12 years with skeletal class II malocclusion were segregated into two groups according to the existence of sleep problems: 30 participants with sleep disorders constituted the study group, while 30 participants without sleep disorders formed the control group. Pharyngeal airway space and hyoid bone position were evaluated via a clinical and radiographic examination.</div></div><div><h3>Results</h3><div>A significantly narrower upper pharyngeal airway width and decreased C3-H hyoid parameter was noted in children with sleep problems (p = 0.035, 0.012).</div></div><div><h3>Conclusion</h3><div>Both pharyngeal airway parameters and the hyoid bone parameters could be potential risk indicators while screening for sleep-disordered breathing in children.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"14 6","pages":"Pages 830-835"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Varun Prabhuji , S. Archana , A. Srirekha , Veena Pai , C. Champa , Ashwija Shetty
{"title":"Comparative evaluation of efficacy of guided endodontic technique with and without sleeve for access cavity preparation: An In Vitro study","authors":"Varun Prabhuji , S. Archana , A. Srirekha , Veena Pai , C. Champa , Ashwija Shetty","doi":"10.1016/j.jobcr.2024.10.013","DOIUrl":"10.1016/j.jobcr.2024.10.013","url":null,"abstract":"<div><h3>Background</h3><div>Calcific metamorphosis in root canals is common and presents challenges in gaining access. Guided endodontics offers a solution to overcome these difficulties. The PriciGuide® system is a patented guided endodontic technique claiming superior precision compared to sleeve-based guides. This study aims to compare deviation between the PriciGuide® system and the guide with sleeve.</div></div><div><h3>Methods</h3><div>A patient with calcified canal underwent CBCT scanning to obtain a DICOM file. Using the DICOM file, 3D models were printed. The patient's cast was scanned to obtain an STL file. Using DICOM and STL files, the guide with sleeve was designed using BlueSkyBio software and 3D printed. The PriciGuide® system was obtained from Roots to Cusps® Private Limited. Access opening was performed using conventional method, guide with sleeve and guide without sleeve (PriciGuide® system).</div><div>Samples underwent radiograph scans to measure coronal, apical, and angular deviations, as well as procedural time.</div></div><div><h3>Results</h3><div>One-Way ANOVA and Post Hoc Bonferroni's test revealed that coronal, apical, and angular deviations were lowest in the guide without sleeve group. However, access opening times were similar in both guided technique groups.</div></div><div><h3>Conclusions</h3><div>The PriciGuide® system offers precise access cavity preparation for calcified canals, showing minimal deviation compared to the sleeve-based guides. It facilitates accurate root canal access regardless of the dentist's experience level. This study utilized 3D-printed teeth that do not fully replicate the complexities of natural teeth, further research is needed to validate the PriciGuide® system's performance on natural teeth and assess deviation using CBCT for a more comprehensive evaluation.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"14 6","pages":"Pages 825-829"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Moyfat Karimov , Goksel Timarcioglu , Celal Candirli
{"title":"Evaluation of buccolingual and linguobuccal implants in the atrophic posterior mandible: A finite element analysis study","authors":"Moyfat Karimov , Goksel Timarcioglu , Celal Candirli","doi":"10.1016/j.jobcr.2024.10.009","DOIUrl":"10.1016/j.jobcr.2024.10.009","url":null,"abstract":"<div><h3>Aim</h3><div>This study aims to evaluate the stress distribution on buccolingual and linguobuccal tilted implants in the atrophic posterior mandible using finite element analysis.</div></div><div><h3>Material and methods</h3><div>Twelve digital models of implants with varying lengths (8.5 mm, 10 mm, 11.5 mm) and angles (20°, 25°) were created. These implants were analyzed under 150 N vertical and oblique forces to assess stress distribution on both implants and surrounding bone.</div></div><div><h3>Results</h3><div>Linguobuccal implants generally exhibited lower maximum principal stress in cortical bone, while buccolingual implants showed lower minimum principal stress. Longer implants reduced stress under oblique loading.</div></div><div><h3>Conclusion</h3><div>Tilted implants, particularly using the linguobuccal method, are effective for stress distribution in the atrophic posterior mandible. Further research should explore varying implant diameters and multiple placements for optimization.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"14 6","pages":"Pages 793-801"},"PeriodicalIF":0.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluation of efficacy of digital or virtual bite registration over conventional techniques- A systematic review","authors":"Priyanjali Paul, Tridib Nath Banerjee, Saurav Banerjee, Anasua Debnath","doi":"10.1016/j.jobcr.2024.10.007","DOIUrl":"10.1016/j.jobcr.2024.10.007","url":null,"abstract":"<div><h3>Background</h3><div>Bite registration procedures have been transformed by the digital revolution in dentistry, thus it is now necessary to compare the accuracy of digital or virtual techniques to conventional ones.</div></div><div><h3>Aim</h3><div>To assess the accuracy of digital or virtual bite registration systems in comparison to conventional methods to clarify any potential advantages or disadvantages.</div></div><div><h3>Methodology</h3><div>A thorough search in numerous databases, including PubMed, Embase, the Cochrane Library, Scopus, and Web of Science, was carried out in accordance with PRISMA criteria. The review focused on the accuracy of digital or virtual bite registration and covered a variety of study formats, including randomized controlled trials, clinical studies, and in-vitro investigations. For each of the included 7 studies, a thorough assessment of bias was conducted using the Newcastle-Ottawa Scale and the Cochrane Risk of Bias tool. As there would be expected variability in study designs, data synthesis required both a narrative explanation of the results and a qualitative synthesis.</div></div><div><h3>Results</h3><div>This systematic review compared 7 studies on traditional bite registration methods versus digital/virtual techniques. Digital techniques highlighted improved efficiency and innovation with increased speed, accuracy, and integration advantages. Evaluations performed with the Newcastle-Ottawa Scale and ROBINS-I tool showed little bias in cross-sectional studies. Nevertheless, in vitro studies have identified biases in participant selection and result reporting, indicating a need for better study rigor and reporting standards. A study received a noteworthy 8 out of 9 score on the Newcastle-Ottawa Scale, indicating strong methodology with careful sample selection, solid comparability, and comprehensive outcome evaluation, enhancing its credibility in assessing bite registration techniques.</div></div><div><h3>Conclusion</h3><div>The benefits of digital/virtual bite registration methods over traditional ones are demonstrated in this systematic review, which also shows how these methods improve speed, accuracy, and integration. Although some studies have shown biases, overall results support the validity and efficiency of digital techniques in improving dental practice.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"14 6","pages":"Pages 785-792"},"PeriodicalIF":0.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Rudhra , Ranjith Mari , Anitha Balaji , Mohan Valiathan
{"title":"Mari's novel T shaped incision in frenotomy technique with bilateral pedicle flap- an aesthetic approach","authors":"K. Rudhra , Ranjith Mari , Anitha Balaji , Mohan Valiathan","doi":"10.1016/j.jobcr.2024.09.008","DOIUrl":"10.1016/j.jobcr.2024.09.008","url":null,"abstract":"<div><h3>Background</h3><div>Aberrant frenum attachments often lead to mucogingival deformities, culminating in both functional impairments and aesthetic concerns. Traditional frenectomy procedures are associated with extensive incisions and resultant wound defects. To address these challenges, a novel T-shaped incision technique has been developed. This method enhances accessibility for removing vestibular and frenal attachments while creating a tripod layer of flaps, thereby promoting primary closure and improved blood supply for healing by primary intention.</div></div><div><h3>Case management</h3><div>This innovative technique is particularly suited for managing frenum variations such as bifid frenum, persistent tectolabial frenum, double frenum, and wider frenum. The procedure involves crafting two horizontal and two converging parallel incisions that form a “T\" shape, facilitating effective fiber detachment. Bilateral pedicle flaps are then employed for primary closure, which concurrently enlarges the zone of attached gingiva.</div></div><div><h3>Conclusion</h3><div>The T-shaped incision approach presents an advanced method for treating abnormal frenum attachments, ensuring efficient fiber separation and fostering healing by primary intention.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"14 6","pages":"Pages 782-784"},"PeriodicalIF":0.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}