BDJ Open最新文献

Aims: To evaluate the clinical and radiographic outcomes of root canal treatment of traumatised necrotic permanent maxillary teeth in paediatric patients.

Methods: A retrospective analysis of clinical and radiographic records of patients aged 16 or under, who underwent apexification of permanent maxillary teeth, between 2016 and 2023, using TotalFill BC Putty was conducted. Success was assessed radiographically using periapical radiographs and clinically, against the European Society of Endodontology quality guideline consensus report.

Results: A total of 66 teeth from 57 patients were included, with the mean age of 10 years old ( ± 2.1). The mean follow-up time was 14 months ( ± 12.2) with the average number of 3.5 visits ( ± 1.8). Success outcome at latest review was favourable in 48.5% (n = 32), uncertain in 36.4% (n = 24) and unfavourable in 15.1% (n = 10) of cases. In 84.9% (n = 56) of cases, there was evidence of complete or partial radiographic healing.

Conclusions: Within the limits of this service evaluation, TotalFill BC Putty showed favourable outcomes in managing necrotic maxillary permanent teeth in children, demonstrating success rates comparable to MTA, suggesting that it may be a viable alternative for apexification in this patient cohort.

Background: Oral health is a crucial determinant of overall well-being, yet 'residents of informal settlement', previously referred as 'slum dwellers', face significant barriers to maintaining it. Personalized oral health education and behavior modification using models like the Health Action Process Approach (HAPA) and Motivational Interviewing (MI) can address these barriers. While HAPA and MI have shown promise, their individual limitations highlight the need for a combined approach. Integrating these models with personalized education and oral care kits provides a holistic solution to address both motivational and practical barriers. This study evaluates the effectiveness of such an intervention on oral health behaviors and outcomes in residents of informal settlement.

Methodology: A quasi-experimental pre and post interventional study was conducted among 45 participants aged 18-60 years from three wards in Bhubaneswar. The study was conducted between October 24, 2023, to December 24, 2023. Participants were recruited through dental camps organised by our institute. Baseline oral health behavior was assessed using a validated questionnaire based on four behavioral constructs: outcome expectancy (OE), self-efficacy (SE), intention (I), and perceived barriers (PB) by faculty and postgraduate students of public health dentistry department. Participants also received personalized oral health education and an oral care kit. Plaque index (PI), Oral Hygiene Index-Simplified (OHI-S), and behaviour towards oral health were recorded both at baseline (T0) and one-month post-intervention (T1) by same examiners. Statistical analyses included paired t-tests, chi-square tests, and Cronbach's alpha for internal consistency of the questionnaire, with p ≤ 0.05 considered significant.

Results: Post-intervention, significant improvements were observed in all behavioral constructs. The mean outcome expectancy (OE) increased from 2.49 ± 0.20 to 4.15 ± 0.07 (p = 0.000), self-efficacy (SE) from 1.90 ± 0.14 to 3.81 ± 0.14 (p = 0.000), intention (I) from 1.92 ± 0.11 to 4.30 ± 0.33 (p = 0.001), and perceived barriers (PB) from 1.85 ± 0.11 to 4.04 ± 0.03 (p = 0.002). Clinical outcomes also showed significant improvements: the mean plaque index (PI) decreased from 1.9 ± 0.8 to 0.9 ± 0.4 (p = 0.000), and the mean oral hygiene index-simplified (OHI-S) decreased from 2.3 ± 1.4 to 1.5 ± 0.9 (p = 0.003). Internal consistency of the questionnaires was good across constructs, with Cronbach's alpha values ranging from 0.715 to 0.751.

Conclusion: This study demonstrates that a holistic behavioural intervention combining personalized education, behavior modification using HAPA and MI models, and oral care kit distribution significantly improves oral hygiene behavior and clinical outcomes among residents of informal settlement. The model addresses both motivational and access barriers, providin

Aims: The reciprocity is a complex endodontic kinematic involving many parameters. The most important of these is undoubtedly the selection of clockwise and counterclockwise rotation angles. In this context, the aim of this study was to determine the influence of clockwise and counterclockwise rotation angles on the mechanical properties of 25/0.06 One Reci reciprocity instruments.

Method: For this purpose, 5 groups of 10 25/0.06 One Reci instruments were used and each group was associated with a pair of counterclockwise/clockwise rotation angles (CCW/CW). In order to study only one variable at a time, one of the two angles was fixed and the second was increased or decreased. The distribution of angles was as follows: Group 1: 170°/60°; Group 2: 150°/60°; Group 3: 170°/30°; Group 4: 170°/90°; Group 5: 210°/60°. Thanks to a load/unload endodontic protocol carried out on a tensile bench, we quantified for each tested pair of angles (i) the cutting efficiency, (ii) the screwing effect and (iii) the generated torque.

Results: Increasing or decreasing one of the two rotation angles influences the mechanical behavior of the instruments, as does the resulting range. Therefore, our results showed a direct influence of rotation angles on the mechanical behavior of endodontic instruments.

Conclusion: This study analyzes the influence of clockwise and counterclockwise rotation angles on the mechanical properties of 25/0.06 One Reci reciprocity instruments. The results of this work tend to demonstrate a direct influence of rotation angles on the mechanical behavior of 25/0.06 One Reci instruments.

Aims: The primary aim was to monitor the healing of the periapical radiolucencies of adolescents' mature permanent teeth with apical periodontitis after root canal retreatment with two REPs techniques at 24 months of follow-up. The secondary aim was to assess clinical outcomes and positive responses of retreated teeth to pulp sensibility tests.

Methodology: Forty adolescents with 48 teeth were enroled and randomly allocated into two equal groups after being matched according to their periapical index (PAI) scores. Root canal retreatment was performed with blood clot (BC) formation in one group and platelet-rich fibrin (PRF) in the other group. The healing process was tracked using standardized two-dimensional radiographic images to record the changes in the PAI scores after 3, 6, 12, and 24 months. Additionally, the clinical signs and symptoms and the positive responses to pulp sensibility tests were monitored. The difference between the PAI medians was analysed using the Mann-Whitney U test. The main impact of time on the PAI values and the interaction between time and the REPs technique were assessed using the general linear model (GLM). The alpha level of significance was 5%.

Results: After two years of follow-up, there was no significant difference between the two groups clinically and in the PAI medians. The overall success rates in the BC and PRF groups were 95% and 100%, respectively (P > 0.05). Positive pulp responses were detected in 71% of the BC group and 73% in the PRF group (P > 0.05). The EPT mean values in the BC and PRF groups were 40.86 ± 6.60 and 37.9 ± 15.22, respectively (P > 0.05). Time had a significant impact on the PAI scores over the follow-up periods (P > 0.0001), while the interaction effect of time with the REPs technique had no significant effect on the PAI scores (P = 0.126).

Conclusions: REPs were effective in the retreatment of mature maxillary permanent incisors with apical periodontitis with a comparable reduction in the periapical radiolucencies and clinical outcomes associated with approximately similar positive responses to thermal and electric pulp tests.

Background: In recent years, an increasing number of studies have revealed a close relationship between the gut microbiota and a variety of human diseases. At the same time, it has also been shown that dysregulation of the oral microbiota may lead to changes in the gut microbiota. However, it remains unclear whether the gut microbiota affects the occurrence and development of oral diseases. Therefore, the aim of this study was to explore the potential effects of gut microbiota on dental caries and to reveal possible mechanisms of the gut-oral microbiota axis.

Methods: First, gut microbiota and dental caries data from genome-wide association studies (GWAS) were analyzed using Mendelian randomization analysis. Inverse variance weighted (IVW) was used as the main criterion (P value < 0.05). Then, MR-Egger regression, IVW regression and leave-one-out tests were used to test the reliability and stability of the mendelian randomization results. Finally, the potential mechanisms and significance of the relationship between gut microbiota and dental caries were explored.

Results: The analysis showed that Eubacteriumbrachygroup [odds ratio (OR) = 1.001, 95% confidence interval (CI): 1.000-1.002, P = 0.046] and Terrisporobacter (OR = 1.002, 95% CI: 1.0001-1.0041, P = 0.035) were positively correlated with dental caries. Escherichia.Shigella (OR = 0.997, 95% CI: 0.995-0.999, P = 0.047), Oscillibacter (OR = 0.998, 95% CI: 0.997-0.999, P = 0.038), RuminococcaceaeUCG014 (OR = 0.998, 95% CI: 0.996-0.999, P = 0.044) and Oscillospira (OR = 0.997, 95% CI: 0.995-0.999, P = 0.038) were negatively correlated with dental caries.

Conclusion: The present study demonstrated a significant causal relationship between the gut microbiota and the development of dental caries, providing new insights into influencing the development of dental caries by affecting the composition of the gut microbiota.

Background: There is no current consensus on the presence of viral infections in acute apical abscesses; therefore, this protocol for a systematic review and meta-analysis is designed to detail the procedures required to investigate the prevalence of viral infections in acute apical abscesses, a common dental condition characterized by pus accumulation due to bacterial infection. Viral infections in oral tissues have been linked to systemic health risks, including chronic inflammation and oncogenesis, which further emphasize the importance of understanding their role in acute apical abscesses.

Methods/design: We adopted a systematic review and meta-analysis protocol design followed by PRISMA guidelines. A priori protocol was registered in PROSPERO with registry number: CRD42023468287. Inclusion criteria will be established according to the PICO framework; hence, we will include original articles with no restriction on publication date or population group. The selective screening of information will be conducted by peers, starting with titles, abstracts, and keywords, and finally reviewing the full text. The risk of bias will be assessed using the ROBINS tool, and the certainty of the evidence will be evaluated following the GRADE guidelines. We will perform a random-effects meta-analysis, utilizing the Freeman-Tukey double arcsine transformation, to estimate the pooled prevalence of viral infections in acute apical abscesses, assess heterogeneity using the Q-test and I² statistic, evaluate potential publication bias with funnel plots and Egger's test, and conduct sensitivity analyses to ensure robust results.

Discussion: At present, no consensus exists regarding the prevalence of viral infections in acute apical abscesses that could inform clinical dental practice. Moreover, the existing body of knowledge on this subject is notably limited. This approach is intended to provide data that will facilitate the improvement of clinical practice and serve as a methodological framework for studying various pathologies. By elucidating the prevalence of viral infections, the findings of this study could enhance diagnostic accuracy and inform more targeted and effective treatment strategies, ultimately improving patient outcomes.

Introduction: People living in nursing or residential homes are at an increased risk of having or developing oral and dental diseases. This is due to contributing factors such as comorbidities and polypharmacy coupled with poor manual dexterity and lack of disease prevention and access to care. These risk factors combined with frequent and high sugar consumption increases risk of developing dental decay. Care home residents are a diverse population from different backgrounds. Little is known about decision making around nutrition in care settings and nutritional practices of older people in care homes, including the choices and challenges. The purpose of this study was therefore, to understand care home landscape and resident experiences.

Materials and methods: Semi-structured interviews were conducted with participants including residents, care home managers, carers and kitchen staff. Interviews were held face-to-face, recorded and transcribed and the findings were analysed using a thematic approach.

Results: A total of 17 participants across 4 care homes in one outer London borough took part in this study, with findings relating to both nutrition and oral health. Resident food preferences were collected upon admission into the home, including information on the incoming resident's lifestyle, routine and choices. Staff tried to maintain these where possible and accommodate to resident choices when possible. Opportunities for wider food choice was dependent on the residents' ability and willingness to request alternatives, their financial freedom to purchase their own foods, mobility to access food outside of the care home setting and food bought in by family and friends. This was compounded by residents being prescribed high calorie, high sugar meal supplemented for weight management. Participants reported that the structured routine revolved around meals and activities. Most care staff reported that an alternative healthy option was offered at mealtimes, but this was not the case in all homes. Care staff faced challenges managing weight of residents who had appetite loss and tried to accommodate and make provisions for those with these experiences and were aware of how to raise concerns. There was variation in mandatory training expectations, with no integration of oral health and nutrition.

Discussion: The findings provided valuable insight into the disparities between and within homes and highlights the challenges in this complex group with regards to nutritional choices. It is vital that a range of food options are in place to protect residents' rights to choose what they wish to eat, whilst offering healthy options and all care staff are educated on offering balanced, nutritious meal and snack options. By offering a range of foods, the healthier choice can be the easier choice.

Background: Direct effects of climate change on different domains of general health have been well documented with evidence-based literature; however, the implications for oral health and dentistry have been addressed in different forms of research papers and lack a comprehensive evaluation.

Objectives: We aimed to conduct a scoping review of the existing literature to elucidate the connections between the impact of climate change on oral health and dentistry, exploring how environmental shifts can influence dental diseases and practices and offering insights for future dental care using a systematic search strategy.

Methods: A systematic search was carried out using keywords in PubMed, Embase, and Scopus databases. Boolean operators were also used to combine the searches and elaborate the search strategy. We did not apply any restriction of time frame or language to the articles. A total of 10 papers were included in the final review. The findings from different papers have reported direct/indirect associations of climate change with oral diseases and conditions such as dental caries, dental erosion, and oral cancer; developmental defects of enamel; early childhood caries; periodontal disease; and dental trauma, skeletal, and dental fluorosis.

Discussion: The findings synthesize a nascent yet significant body of research exploring how environmental changes driven by climate change impact the dental profession and oral health outcomes. Continued research and policy attention are imperative to address the complex and evolving challenges posed by climate change to oral health.

Background: Oral appliances (OAs) are widely used in the management of obstructive sleep apnea (OSA), yet a comprehensive understanding of the research landscape in this field is lacking. This study aims to map the global research trends, influential publications, leading researchers, and emerging areas of interest related to OAs for OSA.

Methodology: Data were retrieved from the Scopus. The search included terms related to OSA and OA. Articles were screened using Rayyan software. VOS viewer™ and Bibliometrix were used for analysis. Data were visualized through network maps and graphs to identify key authors, research centers, countries, and keyword trends. Co-occurrence of keywords and citation patterns were assessed to understand the research dynamics.

Results: Out of 1370 initially retrieved articles, 753 were selected for final analysis, revealing a marked increase in scientific output in recent years. The study identified approximately 2400 researchers, with notable work from Cistulli P.A., Vanderveken O.M., and Lowe A.A., who formed key clusters. Major research hubs included The University of British Columbia, The University of Sydney, and Royal North Shore Hospital. The USA and Japan led in citations and publications. Global collaboration patterns were evident, showing contributions from various countries. Keywords like "obstructive sleep apnea," "mandibular advancement device," and "oral appliance" were frequently used, while emerging trends highlighted gaps in research related to tongue retaining and hybrid appliances. The top 20 cited documents from 1995-2020 encompassed reviews, clinical practice guidelines, and randomized trials, with the "Sleep" journal being the most cited source.

Conclusion: This bibliometric analysis provides a detailed overview of the research landscape on OAs for OSA. The study highlights significant trends, influential researchers, and key research centers. It also identifies emerging areas of interest and research gaps, offering guidance for future research to enhance the clinical effectiveness and adoption of OA therapy for OSA.

Objective: To effectively evaluate evidence-based dentistry (EBD) training outcomes, precise and validated assessment tools are essential. This study aimed to construct a Vietnamese version of the KACE questionnaire (Knowledge, Attitudes, Access, and Confidence Evaluation) and to assess its reliability and validity.

Methods: After translating the original KACE questionnaire, we conducted tests for face validity, content validity, and discriminant validity test. Cronbach's alpha and intraclass correlation coefficients (ICC) were calculated to evaluate the internal consistency and reliability of the Vietnamese KACE questionnaire.

Results: Thirty lecturers and 280 dental students completed the KACE questionnaire. Cronbach's alpha for the Attitude scale ranged from 0.90 to 0.97, for the Accessing Evidence scale from 0.90 to 0.96, and for the Confidence scale ranged from 0.83 to 0.93 across lecturers and dental student groups. The Knowledge scale had Cronbach's alpha from 0.55 to 0.79. The overall ICC of 0.861 indicated that the measurement is stable and consistent.

Conclusion: The Vietnamese adaptation of the KACE questionnaire is a reliable and valuable tool for assessing EBD competencies among Vietnamese dental students and practitioners.