Australian dental journal最新文献_第2页

Flexural properties and finite element analysis of novel 3D-printed ceramic materials via 3D-LCM technology 基于3D-LCM技术的新型3d打印陶瓷材料弯曲性能及有限元分析。

IF 1.9 4区医学

Australian dental journal Pub Date : 2024-12-02 DOI: 10.1111/adj.13048

Abdullah Alshamrani, Amir Fahimipour, Majed Alsarani, Ayman Ellakwa

{"title":"Flexural properties and finite element analysis of novel 3D-printed ceramic materials via 3D-LCM technology","authors":"Abdullah Alshamrani, Amir Fahimipour, Majed Alsarani, Ayman Ellakwa","doi":"10.1111/adj.13048","DOIUrl":"10.1111/adj.13048","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>This study evaluates the mechanical properties of dental crown prosthodontic materials by investigating the flexural strength and stress distribution of various ceramic materials, including milled zirconia and two ceramics fabricated using LCM technology, employing Finite Element Analysis (FEA).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Seventy-five samples were divided into five groups: milled zirconia, Zirconia-210, Zirconia-230, Alumina-350 and Alumina-500. Flexural strength tests, including three-point bending, Weibull analysis and FEA, were conducted to analyse stress distribution. Data were evaluated using one-way ANOVA and Tukey's test.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>3D-printed zirconia showed superior flexural strength compared to milled zirconia and alumina. Zirconia-210 had the highest flexural strength (886.35 MPa), while Alumina-350 had the lowest (424.49 MPa). Alumina-350 exhibited higher von Mises stress (25.77 MPa) than the control group (22.83 MPa), whereas Alumina-500 had the lowest stress (22.65 MPa). Zirconia models showed a slight increase in von Mises strain, while alumina models showed a decrease compared to the control.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Our study found that 3D-printed zirconia displayed higher flexural strength when compared to milled zirconia and alumina. Moreover, there were noticeable variations in stress levels and strain behaviours observed in the materials.</p>\u0000 </section>\u0000 </div>","PeriodicalId":8593,"journal":{"name":"Australian dental journal","volume":"70 1","pages":"58-69"},"PeriodicalIF":1.9,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142765655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Supplement introduction. 补充介绍。

IF 1.9 4区医学

Australian dental journal Pub Date : 2024-12-01 Epub Date: 2024-11-07 DOI: 10.1111/adj.13046

H Sachs

引用次数: 0

Factors influencing treatment decisions in permanent mature teeth with irreversible pulpitis: a questionnaire-based study. 影响患有不可逆牙髓炎的成熟恒牙治疗决定的因素：一项基于问卷的研究。

IF 1.9 4区医学

Australian dental journal Pub Date : 2024-12-01 Epub Date: 2024-06-08 DOI: 10.1111/adj.13026

Y Alfaisal, G Idris, O A Peters, C I Peters, S Zafar

{"title":"Factors influencing treatment decisions in permanent mature teeth with irreversible pulpitis: a questionnaire-based study.","authors":"Y Alfaisal, G Idris, O A Peters, C I Peters, S Zafar","doi":"10.1111/adj.13026","DOIUrl":"10.1111/adj.13026","url":null,"abstract":"<p><strong>Background: </strong>Decision-making in dentistry is a complex process, and this study evaluated factors that influence dentists' approaches in permanent mature teeth with irreversible pulpitis.</p><p><strong>Methods: </strong>An online questionnaire was distributed to a group of dental practitioners. The questionnaire surveyed dentists' opinions about the management of vital permanent teeth with irreversible pulpitis including a case scenario.</p><p><strong>Results: </strong>Data from 262 respondents were analysed. Barriers to perform vital pulp therapy (VPT) included presuming it an inappropriate long-term treatment (29.7%), lack of knowledge, insufficient access to materials, inadequate training and lack of confidence. Patient's preference (79.44%) and tooth restorability (91%) were the most frequently reported factors influencing treatment decisions. Dentists aged 25-35 years and who have 1-5 years of experience ranked extraction as a more successful treatment (P = 0.008; P = 0.003, respectively). Non-Australian graduates ranked pulpotomy to be a more successful procedure (P = 0.007), and public sector/hospital practitioners favoured extraction more than practitioners from other sectors (P = 0.003). Postgraduates/specialists preferred pulpotomy (P = 0.012) more than general dentists. Participants' clinical approaches for the management of symptomatic irreversible pulpitis: root canal treatment (45.0%), indirect pulp capping (22.9%), direct pulp capping (15.8%), pulpotomy (17.1%) and extraction (6.3%).</p><p><strong>Conclusions: </strong>Female, more experienced, overseas-educated dentists and endodontists preferred VPT for irreversible pulpitis in permanent mature teeth more than other participants. © 2024 Australian Dental Association.</p>","PeriodicalId":8593,"journal":{"name":"Australian dental journal","volume":" ","pages":"293-303"},"PeriodicalIF":1.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11845842/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141287672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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ADRF Special Research Supplement December 2024. ADRF 2024 年 12 月特别研究增刊。

IF 1.9 4区医学

Australian dental journal Pub Date : 2024-12-01 Epub Date: 2024-11-07 DOI: 10.1111/adj.13047

引用次数: 0

Are sleep disorders associated with traumatic dental injuries in school children? A cross-sectional study. 睡眠障碍与学龄儿童牙齿外伤有关吗？一项横断面研究。

IF 1.9 4区医学

Australian dental journal Pub Date : 2024-12-01 Epub Date: 2024-06-04 DOI: 10.1111/adj.13023

I A Cossa, P S Santos, F C Vitali, C M Santana, M Bolan, M Cardoso

{"title":"Are sleep disorders associated with traumatic dental injuries in school children? A cross-sectional study.","authors":"I A Cossa, P S Santos, F C Vitali, C M Santana, M Bolan, M Cardoso","doi":"10.1111/adj.13023","DOIUrl":"10.1111/adj.13023","url":null,"abstract":"<p><strong>Background: </strong>To evaluate whether the prevalence of traumatic dental injuries (TDIs) in permanent anterior teeth among school children is associated with sleep behaviours and disorders.</p><p><strong>Methods: </strong>A cross-sectional study was carried out with a representative sample of schoolchildren aged 8 to 10 years (n = 1402) from Florianopolis, Brazil. Clinical examinations for TDIs were performed according to the classification proposed by Andreasen. Parents/caregivers completed a questionnaire addressing sociodemographic characteristics and sleep behaviours/disorders (sleep duration, insomnia, sleep rhythmic movement, snoring, and signs of sleep apnoea). Descriptive analysis and Poisson regression were performed.</p><p><strong>Results: </strong>The prevalence of TDIs was 10.9%. Insomnia was observed in 3.0% of the children, snoring in 42.8%, sleep rhythmic movement in 27.9%, and signs of obstructive sleep apnoea in 33.6% of the schoolchildren. Most children (75.2%) slept less than eight hours a day. The prevalence of TDIs was higher among schoolchildren with an increased overjet (PR: 1.65; 95% CI: 1.15-2.35; P < 0.01), after adjusting for monthly family income, caregiver's schooling, and sleep behaviours. The prevalence of TDIs was not associated with sleep behaviours/disorders.</p><p><strong>Conclusions: </strong>Parent-reported sleep disorders such as insomnia, sleep rhythmic movement, snoring and signs of sleep apnoea were not associated with the prevalence of TDIs in schoolchildren. © 2024 Australian Dental Association.</p>","PeriodicalId":8593,"journal":{"name":"Australian dental journal","volume":" ","pages":"278-284"},"PeriodicalIF":1.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141261298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Periodontitis and the risk of oral, gastric and esophageal cancers: a two-sample Mendelian randomization study. 牙周炎与罹患口腔癌、胃癌和食道癌的风险：一项双样本孟德尔随机研究。

IF 1.9 4区医学

Australian dental journal Pub Date : 2024-12-01 Epub Date: 2024-06-29 DOI: 10.1111/adj.13028

C Sheng, X X Han, M Y Li, X X Jia, K J Wang

{"title":"Periodontitis and the risk of oral, gastric and esophageal cancers: a two-sample Mendelian randomization study.","authors":"C Sheng, X X Han, M Y Li, X X Jia, K J Wang","doi":"10.1111/adj.13028","DOIUrl":"10.1111/adj.13028","url":null,"abstract":"<p><strong>Background: </strong>Periodontitis is a common oral disease and the chronic inflammation caused by it may influence the development of cancers in the upper gastrointestinal tract. Many observational studies have established a relationship between the two, but the results are not entirely consistent.</p><p><strong>Methods: </strong>Two-sample MR was performed using publicly available genome-wide association studies data for periodontitis, oral, gastric and oesophagal cancers. The Inverse Variance Weighting (IVW) method serves as the primary method, with MR Egger, Weighted Median, Simple Model and Weighted Model Algorithm methods as complementary methods to assess genetic causal associations. Cochran Q-test, MR-Egger regression and MR polytropic residuals and outliers were used to assess heterogeneity and horizontal pleiotropy.</p><p><strong>Results: </strong>IVW results did not support a causal association between periodontitis and oral (OR = 1.00, 95% CI: 1.00, 1.00) and oesophagal cancer (OR = 1.00, 95% CI: 1.00, 1.00). Similarly, there was again no causal association between periodontitis and gastric cancer, which was integrated with an OR of 1.04 (95% CI: 0.97, 1.12). Complementary method results were consistent with IVW and heterogeneity and horizontal pleiotropy were not found in most studies.</p><p><strong>Conclusions: </strong>The findings of our MR study do not support a causal relationship between periodontitis and oral, gastric and oesophagal cancers.</p>","PeriodicalId":8593,"journal":{"name":"Australian dental journal","volume":" ","pages":"304-311"},"PeriodicalIF":1.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141465873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Bilateral mandible fractures in the paediatric patient in a case of peer-to-peer violence: a case report and literature review. 一起同伴间暴力事件中儿科患者的双侧下颌骨骨折：病例报告和文献综述。

IF 1.9 4区医学

Australian dental journal Pub Date : 2024-12-01 Epub Date: 2024-06-07 DOI: 10.1111/adj.13025

K L Dal Santo

引用次数: 0

Antifungal agents incorporated in denture base materials: a scoping review of the current evidence and technology prospecting. 义齿基托材料中的抗真菌剂：对现有证据和技术展望的范围审查。

IF 1.9 4区医学

Australian dental journal Pub Date : 2024-12-01 Epub Date: 2024-07-24 DOI: 10.1111/adj.13030

M L Ferreira, A S Barboza, MdS Fernandez, J S Ribeiro de Andrade, F G Pappen, G Hwang, R G Lund

{"title":"Antifungal agents incorporated in denture base materials: a scoping review of the current evidence and technology prospecting.","authors":"M L Ferreira, A S Barboza, MdS Fernandez, J S Ribeiro de Andrade, F G Pappen, G Hwang, R G Lund","doi":"10.1111/adj.13030","DOIUrl":"10.1111/adj.13030","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to summarize existing data and perform technological prospecting on the effect of incorporating antifungal agents into denture base materials in inhibiting Candida spp., as well as to explore the antimicrobial properties of these materials.</p><p><strong>Methods: </strong>A comprehensive electronic search was carried out in six major bibliographic databases (PubMed, Scopus, Embase, Cochrane Library, Web of Science and Lilacs) until February 2024. In addition, international patent databases were also examined. The search process, study and patent selection, data extraction and risk of bias assessment were carried out independently by researchers. The collected data underwent qualitative analysis.</p><p><strong>Results: </strong>A total of 10 718 articles were identified in the searched databases, of which 40 documents were included for qualitative data analysis (articles: 31; patents: 9). The majority of the studies focused on investigating tissue conditioners (n = 14) and acrylic resins (n = 14). The primary antifungal agents studied were nystatin (n = 15) and fluconazole (n = 13). The most commonly utilized microbiological evaluation methodology was the agar diffusion test (n = 16), followed by the microdilution (n = 7) and biofilm formation assays (n = 7). All of the studies investigated the inhibitory effect of these materials against Candida species.</p><p><strong>Conclusion: </strong>The incorporation of antifungal agents into denture base materials has been extensively studied and has shown a significant inhibitory response against Candida spp. across various methodological assays.</p>","PeriodicalId":8593,"journal":{"name":"Australian dental journal","volume":" ","pages":"251-266"},"PeriodicalIF":1.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141750971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Conservative interdisciplinary management for a congenitally missing maxillary lateral incisor in an adolescent patient. 对一名先天性上颌侧切牙缺失的青少年患者进行跨学科保守治疗。

IF 1.9 4区医学

Australian dental journal Pub Date : 2024-12-01 Epub Date: 2024-06-10 DOI: 10.1111/adj.13027

R Hmud, Dc-V Ong

引用次数: 0

The mouth as reservoir for systemic infection. 口腔是全身感染的宿主。

IF 1.9 4区医学

Australian dental journal Pub Date : 2024-12-01 Epub Date: 2024-11-29 DOI: 10.1111/adj.13052

I Darby

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