Current opinion in dentistry最新文献

Teeth with Apical Periodontitis Obturated in the Presence or Absence of Cultivable Micro-Organisms: a Two-Year Prospective Study of Treatment Outcomes 根尖牙周炎患者在存在或不存在可培养微生物的情况下封闭牙齿:一项为期两年的治疗结果前瞻性研究

Current opinion in dentistry Pub Date : 2021-09-10 DOI: 10.2174/2542579x03666210910164329

F. Chu, Xun Ding, T. Chow, L. Samaranayake

{"title":"Teeth with Apical Periodontitis Obturated in the Presence or Absence of Cultivable Micro-Organisms: a Two-Year Prospective Study of Treatment Outcomes","authors":"F. Chu, Xun Ding, T. Chow, L. Samaranayake","doi":"10.2174/2542579x03666210910164329","DOIUrl":"https://doi.org/10.2174/2542579x03666210910164329","url":null,"abstract":"\u0000\u0000This prospective study aims to evaluate the one-year and two-year outcomes of root canals with apical periodontitis obturated in the presence or absence of cultivable micro-organisms, and define the influence on endodontic treatment outcome from different independent variables.\u0000\u0000\u0000\u0000 87 patients with 45 exposed and 43 unexposed canals who previously participated in a microbiological study of primary endodontic infections were invited back for review in 12 and 24 months after endodontic treatment. The review involves clinical examination, questionnaire interview and radiographic assessment in order to determine the treatment outcomes. The influence of independent variables, such as gender, age, tooth location, etc., on the treatment outcome, has also been analysed.\u0000\u0000\u0000\u0000A total of 85 teeth of 84 patients were reviewed one and two years after obturation. Chi-square test for trend showed that the one-year radiographic healing of apical lesions was significantly different between culture-positive and negative canals (P<0.05). However, there is no significant difference in the two-year radiographic healing between the two groups of canals (P>0.05). None of the independent variables was found to be significant in affecting the endodontic treatment outcome on logistic regression analysis.\u0000\u0000\u0000\u0000The presence of positive culture prior to obturation seemed to affect the healing of periapical tissues in a one-year review, but the effect appeared to be temporal and not affected the long-term outcome.\u0000","PeriodicalId":10853,"journal":{"name":"Current opinion in dentistry","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82012817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determine the Applicability of Moyers Analysis in the Contemporary Western Australian Adolescent Population 确定莫耶斯分析在当代西澳大利亚青少年人群中的适用性

Current opinion in dentistry Pub Date : 2021-08-05 DOI: 10.2174/2542579x03666210805100624

S. Abaid, S. Zafar, E. Kruger, M. Tennant

{"title":"Determine the Applicability of Moyers Analysis in the Contemporary Western Australian Adolescent Population","authors":"S. Abaid, S. Zafar, E. Kruger, M. Tennant","doi":"10.2174/2542579x03666210805100624","DOIUrl":"https://doi.org/10.2174/2542579x03666210805100624","url":null,"abstract":"\u0000\u0000 Moyers probability tables have been widely used to determine the mesiodistal dimensions of unerupted canines and premolars for mixed dentition space analysis. Secular, racial, and sexual dimorphism have been reported in the literature and applicability of Moyer analysis has been doubted in many other populations.\u0000\u0000\u0000\u0000\u0000The present study was conducted to determine the applicability of Moyers probability tables and develop a more accurate prediction method in a contemporary Western Australian adolescent population if needed.\u0000\u0000\u0000\u0000\u0000 A retrospective study including 500 participants [323 females, 177 males] between 13-18 years old attending the orthodontic private practice was conducted. Mesiodistal dimensions of selected participants were obtained from pre-orthodontic treatment digital dental records using Invisalign® technology [ Invisalign®, Align Tech¬nology, Santa Clara, CA, USA] Data were analysed using SPSS. New regression equations were derived based on the sum of permanent mandibular incisors, and probability tables were proposed for more accurate prediction. \u0000\u0000\u0000\u0000\u0000Significant differences were found between the measured sum of permanent canine-premolar segments and those predicted with the Moyers probability table, at all percentile levels, except the 50th percentile, where no significant difference was observed.\u0000\u0000\u0000\u0000\u0000Moyers probability table can be applied at the 50th percentile for estimation of sum of mesiodistal dimensions of canine-premolars segments. Newly developed regression equations and tables could be considered to provide more accurate mixed dentition space analysis.\u0000\u0000","PeriodicalId":10853,"journal":{"name":"Current opinion in dentistry","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78583570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Readability of Online Patient Education Materials for Dental Radiology 牙科放射学在线患者教育材料的可读性

Current opinion in dentistry Pub Date : 2021-07-28 DOI: 10.2174/2542579x03666210728141256

Andy Wai Kan Yeung

引用次数: 0

The Top 102 Most Cited Publications Relevant to Dental Education 与牙科教育相关的前102个最常被引用的出版物

Current opinion in dentistry Pub Date : 2021-07-28 DOI: 10.2174/2542579x03666210728130040

Andy Wai Kan Yeung, R. Tanaka, W. K. Leung

{"title":"The Top 102 Most Cited Publications Relevant to Dental Education","authors":"Andy Wai Kan Yeung, R. Tanaka, W. K. Leung","doi":"10.2174/2542579x03666210728130040","DOIUrl":"https://doi.org/10.2174/2542579x03666210728130040","url":null,"abstract":"\u0000\u0000 Growth and development in dental education globally depend on effective experience sharing and advocation of evidence-based practice, preferably tested via vigorous peer evaluation. \u0000\u0000\u0000\u0000\u0000 This study aimed to evaluate the most cited dental education publications. The objectives were to identify the most productive entities, and the most frequently investigated themes and specialties.\u0000\u0000\u0000\u0000\u0000The top publications included 83 original articles, 15 reviews, 3 books, and 1 online document, written by 30 different authors, with 38 publications from dental journals not dedicated to education, and with an average of 5.5 citations per year. The most productive author was William Hendrickson. The most productive institutions were from Europe and the United States. There were 11 papers focused on operative dentistry, 9 on endodontology, 4 on special care dentistry, 2 on community dentistry, 2 on periodontology, and 2 on implantology. Within the top 102 list, 21 publications focused on the stress experienced by dental students at school. A multiple ANCOVA indicates that citation counts in these highly cited publications are associated with a number of authors and document types, such as “reviews/books/online document” compared with original articles (p < 0.001). \u0000\u0000\u0000\u0000\u0000 Influential dental education studies were published on a variety of platforms. Over the past 20 years, the field witnessed the emergence of highly cited reports/articles. Similar to influential papers in various fields, the number of authors per top-cited dental education publications appeared to be associated with high citations indicating top quality and high appreciation/acceptance of the articles involved.\u0000\u0000","PeriodicalId":10853,"journal":{"name":"Current opinion in dentistry","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78853454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anterior Labial Alveolar Bone Thickness After Orthodontic Retraction Of Anterior Teeth 前牙正畸后前唇牙槽骨厚度

Current opinion in dentistry Pub Date : 2021-06-16 DOI: 10.2174/2542579x03666210616150715

H. Lubis, A. Rachmawati, Stephani Tanius

{"title":"Anterior Labial Alveolar Bone Thickness After Orthodontic Retraction Of Anterior Teeth","authors":"H. Lubis, A. Rachmawati, Stephani Tanius","doi":"10.2174/2542579x03666210616150715","DOIUrl":"https://doi.org/10.2174/2542579x03666210616150715","url":null,"abstract":"\u0000\u0000Correction of skeletal Class II malocclusion generally requires extraction of the premolars, followed by the retraction of the anterior teeth to reduce overjet. Morphometric evaluation of alveolar bone can be used to study the limitation of tooth movement to avoid adverse effects. The purpose of this study is to measure the changes in the bone thickness of the maxillary incisors in skeletal Class II malocclusion patients after retraction and determine the relationship between changes in bone thickness and the amount of retractions using lateral cephalometric radiographs.\u0000\u0000\u0000\u0000The design of this study was to determine the cross-sectional changes in bone thickness in linear directions after retraction and the relationship between changes in bone thickness and the amount of retraction. Bone thickness in the linear directions was measured using digital cephalometric radiographs.\u0000\u0000\u0000\u0000The measurement results from tracing 43 lateral cephalometric before and after anterior retraction treatment showed that there was a difference in alveolar bone thickness at the 9mm level from the CEJ in a linear direction on the anterior retraction of skeletal Class II malocclusion maxillary incisors (p <0.05), however, there was no difference in alveolar bone thickness at levels 3 and 6 mm from CEJ in the linear direction, and the angular direction (p> 0.05). Changes in alveolar bone thickness did not correlate with the amount of incisor retraction (p> 0.05).\u0000\u0000\u0000\u0000The results showed that the change in labial alveolar bone thickness was not significantly correlated to the amount of retraction.\u0000","PeriodicalId":10853,"journal":{"name":"Current opinion in dentistry","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77505622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preface: Digital Technologies in Current Dentistry 前言：当前牙科中的数字技术

Current opinion in dentistry Pub Date : 2021-03-01 DOI: 10.2174/2542579x0301211103110525

F. Chu

引用次数: 0

Meet the Editorial Board Member 认识编辑委员会成员

Current opinion in dentistry Pub Date : 2021-03-01 DOI: 10.2174/2542579x0301211103110352

Melinda Madléna

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Meet Our Editor-in-Chief 认识我们的主编

Current opinion in dentistry Pub Date : 2020-09-09 DOI: 10.2174/2542579x0201200721111340

F. Chu

引用次数: 0

Effect of Filler Content and Waiting time Before Light-Curing on Mechanical Properties of Dual-Cured Cement 填料掺量及光固化等待时间对双固化水泥力学性能的影响

Current opinion in dentistry Pub Date : 2020-09-09 DOI: 10.2174/2542579x01666190924180448

A. C. Oliveira, S. Griza, R. R. de Moraes, A. Faria-E-Silva

{"title":"Effect of Filler Content and Waiting time Before Light-Curing on Mechanical Properties of Dual-Cured Cement","authors":"A. C. Oliveira, S. Griza, R. R. de Moraes, A. Faria-E-Silva","doi":"10.2174/2542579x01666190924180448","DOIUrl":"https://doi.org/10.2174/2542579x01666190924180448","url":null,"abstract":"\u0000\u0000To investigate the effect of filler content and the time spent before light-curing\u0000on mechanical properties of dual-cured cement.\u0000\u0000\u0000\u0000Experimental dual-cured resin cements were formulated with 60, 65 or 68wt% of filler.\u0000The viscosity of experimental cement was measured using a digital viscometer. Bar-shaped specimens\u0000(25 x 2 x 2 mm) were fabricated, while the light-curing was started immediately or 5 minutes\u0000after the insertion of cement into the mold (n = 7). A three-point bending test was performed and the\u0000values of flexural strength and elastic modulus were measured. The Vickers hardness of fractured\u0000specimens was measured on the surface of the cement. Data from viscosity were submitted to oneway\u0000ANOVA, while the data from mechanical properties were analyzed by two-way ANOVA. All\u0000pair-wise comparisons were performed using Tukey’s test (α = 0.05).\u0000\u0000\u0000\u0000The experimental cement with 68wt% of filler showed the highest viscosity and those with\u000060wt% showed the the lowest viscosity. Irrespective of the time spent before light-curing, the cement\u0000with 65wt% of filler presented the highest values of flexural strength and elastic modulus. The\u0000addition of 60wt% of filler resulted in the lowest elastic modulus, while 68wt% of filler resulted in\u0000lowest flexural strength. Regarding the hardness, the cement with 68wt% of filler showed the highest\u0000values, while there was no difference between 60 and 65wt% of filler.\u0000\u0000\u0000\u0000 Filler content affected the mechanical properties of the experimental cement and this\u0000effect did not depend on the waiting time before the light-curing procedure.\u0000","PeriodicalId":10853,"journal":{"name":"Current opinion in dentistry","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84580580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chitosan/Fluoride Nanoparticles for Preventing Dental Caries 壳聚糖/氟化物纳米颗粒预防龋齿

Current opinion in dentistry Pub Date : 2019-05-01 DOI: 10.2174/2542579X01666190212150457

Niousha Ebrahimi, A. Soleimani, J. Rashidiani, B. Malekafzali, H. Hosseinkhani, F. Abedini

{"title":"Chitosan/Fluoride Nanoparticles for Preventing Dental Caries","authors":"Niousha Ebrahimi, A. Soleimani, J. Rashidiani, B. Malekafzali, H. Hosseinkhani, F. Abedini","doi":"10.2174/2542579X01666190212150457","DOIUrl":"https://doi.org/10.2174/2542579X01666190212150457","url":null,"abstract":"\u0000\u0000Background: Dental caries is still a major public health problem. The use of fluoride is\u0000one of the most effective ways to prevent tooth decay.\u0000\u0000Objective: The purpose of this research was to investigate the effectiveness of fluoride entrapped in\u0000chitosan nanoparticles in vivo.\u0000\u0000Methods: Sodium fluoride was loaded in chitosan via ionic gelation of tripolyphosphate nanoparticles.\u0000Characterization of nanoparticles was investigated by using the zeta potential, size of particles,\u0000loading capacities, encapsulation efficiency, and Fourier Transforms Infrared Spectroscopy. Chitosan/\u0000fluoride nanoparticles were fabricated by a method of fluoride/chitosan cross-linking with\u0000tripolyphosphate.\u0000\u0000Results: The size of nanoparticles was 219 nm. According to the zeta potential results, by adding\u0000sodium fluoride to chitosan/tripolyphosphate nanoparticles reducing the number of positive charges\u0000of chitosan, the result was diminished zeta potential from +30.8 mV to +14.9 mV. The optimum\u0000drug loading and percentage of entrapment efficiency were 70% and 30% respectively. Fourier\u0000transform infrared spectroscopy confirmed linked among tripolyphosphate, chitosan and fluoride\u0000nanoparticles. In vitro characterization of nanoparticles demonstrated higher fluoride uptake ability\u0000and smooth releasing profile.\u0000\u0000Conclusion: It is suggested that fluoride/chitosan nanoparticles synthesized in our study may be a\u0000promising means of delivering fluoride for the early prevention of tooth decay.\u0000","PeriodicalId":10853,"journal":{"name":"Current opinion in dentistry","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76136403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6