Capacidade terapêutica da fitoterapia na odontologia: uma análise abrangente das proteínas antimicrobianas, anti-inflamatórias e reparadoras / Therapeutic capacity of phytotherapy in dentistry: a comprehensive analysis of antimicrobial, anti-inflammatory, and reparative properties

Introdução: A fitoterapia se baseia na utilização de plantas medicinais, através de diferentes formulações farmacêuticas com fins terapêuticos. Na Odontologia, os fitoterápicos têm sido alvo de estudos, devido suas propriedades benéficas, além de apresentarem biocompatibilidade, baixo custo e fácil acesso. Objetivo: Realizar um levantamento na literatura científica sobre a utilização da fitoterapia na Odontologia, com vistas aos efeitos antimicrobiano, anti-inflamatório e reparador. Material e Métodos: A busca ocorreu entre fevereiro a julho/2023, nas bases PubMed e LILACS, além de livre busca, cruzando-se os descritores "Phytotherapy", "Dentistry", "Anti-inflamatory Agents", "Anti-Infective Agents", "Wound Healing", "Fitoterapia", "Odontologia", "Anti-inflamatório", "Antimicrobiano" e "Cicatrização". Após leitura inicial, seguida da análise crítica com aplicação dos critérios estabelecidos, foram selecionadas 50 referências. Desenvolvimento: Diversas plantas são empregadas sob a forma de fitoterapia, como Aloe vera (babosa), Matricaria recutita (camomila), Copaifera (copaíba), Punica granatum (romã), Uncaria tomentosa (unha-de-gato), Malva sylvestris (malva), Althaea officinalis (malvaísco), Myracrodruon urundeuva (Aroeira), Lippia sidoides (Alecrim pimenta) e Glycyrrhiza glabra (Alcaçuz). Na Odontologia, pesquisas evidenciaram resultados satisfatórios para o tratamento de afecções da cavidade oral, especialmente com caráter inflamatório e infeccioso, além de aclerar a cicatrização. Esses achados apontam que a fitoterapia é um tratamento eficaz, acessível e com mínimos efeitos colaterais. Considerações finais: Com base na literatura revisada, a fitoterapia parece ser uma alternativa promissora no tratamento de afecções orais, devido aos seus notáveis efeitos cicatrizantes, antimicrobianos e anti-inflamatórios. Contudo, mais pesquisas com metodologias adequadas são necessárias para que se estabeleçam protocolos clínicos seguros e eficazes.

Introduction: Phytotherapy is based on the use of medicinal plants through different pharmaceutical formulations for therapeutic purposes. In Dentistry, phytotherapeutics have been the subject of studies due to their beneficial properties, as well as their biocompatibility, low cost, and easy accessibility. Objective: To conduct a literature review on the use of phytotherapy in Dentistry, focusing on antimicrobial, anti-inflammatory, and reparative effects. Materials and Methods: The search took place between February and July 2023, using PubMed and LILACS databases, in addition to a free search, crossing the descriptors "Phytotherapy," "Dentistry," "Anti-inflammatory Agents," "Anti-Infective Agents," "Wound Healing," "Fitoterapia," "Odontologia," "Anti-inflammatory," "Antimicrobial," and "Cicatrização." After an initial reading, followed by critical analysis with the application of established criteria, 50 references were selected. Development: Various plants are employed in phytotherapy, such as Aloe vera (aloe), Matricaria recutita (chamomile), Copaifera (copaiba), Punica granatum (pomegranate), Uncaria tomentosa (cat's claw), Malva sylvestris (mallow), Althaea officinalis (marshmallow), Myracrodruon urundeuva (Brazilian copaiba), Lippia sidoides (rosemary pepper), and Glycyrrhiza glabra (licorice). In Dentistry, research has shown satisfactory results for the treatment of oral cavity conditions, especially those with inflammatory and infectious characteristics, as well as accelerating healing. These findings suggest that phytotherapy is an effective, accessible treatment with minimal side effects. Final considerations: Based on the reviewed literature, phytotherapy appears to be a promising alternative in the treatment of oral conditions due to its notable healing, antimicrobial, and anti-inflammatory effects. However, more research with appropriate methodologies is necessary to establish safe and effective clinical protocols.

Insights and networks: methodological assessment and scientometric analysis of economic evaluations in dentistry.

INTRODUCTION: Assessing the methodological quality of economic evaluations (EEs) is crucial for evidence-based decision-making. The study aimed to evaluate EEs in restorative dentistry and endodontics, while also analyzing the scientific landscape of researchers and publications through co-authorship and citation network analysis providing an insight into the distribution of scientific expertise. METHODOLOGY: A systematic search for relevant articles from 2012 to 2022 was conducted using PubMed, Scopus, and EBSCO. The ten-point Drummond checklist was used to appraise the methodological quality of included studies. Bibliometric data for network analysis were extracted from the Dimensions database and visualized using VOSviewer software. RESULTS: Of the 37 articles, 81.08% scored good, 16.21% average, and 2.7% poor on the methodological rating scale. Most of the included studies were in Q1 journals, with limited representation in Q2 and Q3 journals. Compliance was highest in Q2 journals (95%), followed by Q1 (88.36%), while it dropped to 40% for Q3 journals. Co-authorship analysis revealed a dense network of researchers, with Prof. Falk Schwendicke V. having a significant influence. Moreover, the Journal of Dentistry had the highest impact, followed by Journal of Endodontics and BMC Oral Health. CONCLUSIONS: Despite a diverse scientific landscape, participation from developing countries was limited emphasizing the need for inclusivity and diversity in the scientific network. While the quantity of good-quality studies was encouraging, the overall quality of evidence remains paramount for decision-making in healthcare policy and practice. Therefore, continuous efforts to improve methodological rigor and reporting practices are essential to contribute robust evidence.

Use of Hypnosis in the Treatment of Orofacial Pain: A Systematic Review.

Objectives: To conduct a systematic review on the use of hypnosis in the treatment of orofacial pain. Methods: The search was performed on February 2021 and updated in July 2024 in the following databases: MEDLINE via PUBMED, Virtual Health Library (VHL), Web of Science, Cochrane Library, Embase, Clinical Trials, ISRCTN Registry, Psycinfo, Open Grey, Google Scholar, and Brazilian Digital Library of Theses and Dissertations (BDTD). The descriptors referring to Orofacial Pain and hypnosis were used to select clinical trials on the use of hypnosis in the treatment of Orofacial Pain, in English, Spanish, Portuguese, French, and Italian, without restriction on date and place of publication. In a first stage, two independent, trained, and calibrated reviewers classified the abstracts and then the full texts. The data were extracted, and the risk of bias was assessed using the Cochrane RoB 2.0 tool. Results: Of the 642 references identified, 6 studies-published between 1986 and 2010-were included in the review, with 232 patients reported. Hypnosis was mainly used in cases of chronic pain associated with temporomandibular disorders (TMDs), compared with relaxation sessions, acupuncture, occlusal splint, minimal treatment, or no interference. Hypnotherapy was applied in different ways, either exclusively by professionals or by means of self-hypnosis in a complementary or exclusive manner. All studies showed statistical significance for the effect of the intervention (hypnotherapy). The overall RoB2 consisted of three studies with high risk of bias and three studies with some concern. Conclusions: Although there were clinical studies on the subject and they had methodological flaws, hypnotherapy (induction and/or self-hypnosis) appears to be a promising strategy for the treatment of orofacial pain, especially TMDs. There is, therefore, a need for new randomized clinical studies with adequate methodological standards to confirm the findings.

Communication in implant treatment planning, placement and reconstruction in the digital age: a technician's perspective.

Effective communication between clinicians and the dental laboratory is paramount in the realm of dental implant restorations, where precision and meticulous planning are key for success. This article explores the transformative shift towards digital workflows, highlighting the collaborative dance between the clinician and the dental laboratory. The power of visual communication is emphasised, with examples illustrating its impact on the precision of treatment plans. Celebrating these digital tools, this article envisions a new era of collaboration, transcending traditional communication methods for more predictable and successful implant restorations.

The hygienist's role in the management of the implant patient in primary care.

The scope of practice for dental hygienists includes the care of implants and peri-implant tissues. Hygienists in primary care settings must therefore be competent and confident in assessing, managing, and treating implant restorations and their peri-implant health. Dental hygienists also play a key role in the education of patients on oral health as part of their daily practice, a recognised and valued aspect of their clinical care responsibilities. Dental hygienists and therapists therefore have a pivotal role as adjunct support in a patient's implant journey where they can offer essential support throughout their treatment period and can provide guidance and education at regular intervals.Using current guidelines, dental hygienists and therapists can create and implement practice protocols to help deliver the necessary clinical care during pre-implant, peri-implant, and post-implant phases of care. This article discusses the processes required to achieve a healthy implant patient, how the dental team can support the patient, and how clinicians can work together to achieve the best possible clinical outcome. This article will explore current evidence-based guidance and how to implement guidance in a practice setting, with protocols for all members of the dental team, with the final goal of a dentally healthy, motivated patient.

Developing implant mentoring programmes: breaking down the components.

Mentoring has been identified as a key component of training in implant dentistry. However there has been little guidance about how this should take place, the expected outcomes, who should be providing mentoring, and the processes involved. Dentists are required to ensure they are appropriately trained, competent and confident when undertaking clinical tasks. Mentoring will play a key role in giving assurance that these are in place. This article, which is partly based on the College of General Dentistry publication Mentoring in Implant Dentistry: Good Practice Guidelines, provides background and context to the role of mentoring in implant dentistry training programmes. Key components of structured mentoring programmes are described to assist mentors, mentees, and implant education providers.

Radiographic anatomy of the nasal conchal bullae and conchal sinuses in mature horses.

The dorsal and ventral nasal conchal bullae and conchal sinuses are part of the complex equine paranasal sinus system and are commonly affected by secondary sinusitis. However, the radiographic anatomy of the conchal sinuses is poorly reported in the literature. The present study aimed to describe the radiographic anatomical characteristics of the nasal conchal bullae and conchal sinuses in mature horses. Six equine cadaveric heads without sinus or dental disorders were studied. A maxillary sinusotomy was performed to identify the dorsal and ventral nasal conchal bullae and conchal sinuses, allowing the application of radiopaque contrast medium in these structures. Afterward, the same projections were repeated. Laterolateral views allowed an adequate visualization of nasal conchal bullae and conchal sinuses; however, they overlapped the same contralateral structure. In the latero30°dorsal- lateroventral oblique view, the same structures were easily recognizable, but in an oblique view, the structures were projected dorsally in relation to the contralateral one. The dorsoventral view allowed partial visualization of the dorsal conchal bullae and dorsal sinuses, but it was not possible to identify the ventral conchal sinus and ventral conchal bullae. The offset dorsoventral view helped in the identification of the dorsal conchal bullae and dorsal conchal sinus, also achieving visualization of the medial region of the ventral conchal sinus and ventral conchal bullae. The use of contrast medium, added to the anatomical dissection, allowed a better radiographic identification of the sinuses and conchal bullae. The combination of different radiographic views is recommended for the evaluation of these structures.

Understanding the role of a general education course Oral Science in establishing oral health knowledge and behaviors among undergraduate students from different majors: a questionnaire-based study.

BACKGROUND: The general education course, Oral Science, has been offered by Guanghua School of Stomatology, Sun Yat-sen University for many years in order to improve students' knowledge of oral health. Information about the oral health knowledge, status, and behaviors among undergraduates who had taken Oral Science was collected to evaluate the impact of this course, and to provide a basis for further improvement of the course teaching quality. METHODS: Undergraduates taking Oral Science as an elective course were selected as the research subjects. The research time is the second semester of the 2022 academic year, from February 2023 to June 2023. Undergraduates who had not taken the course served as the control group. To investigate the oral health knowledge, status, and behaviors among undergraduate students who have taken the general education course of Oral Science, course students and non-course students were asked to fill out the same questionnaire at both the beginning and end of semester. The answer scores and accuracy of these two groups were compared and analyzed. Before and after the first lesson, and at the end of the semester, course students were asked to fill out the same oral knowledge questionnaire. Another questionnaire was released in week 10 to collect the data of the course students' oral health status and behaviors. The control group completed the same oral knowledge questionnaire at the beginning and end of the semester, respectively. SPSS 20.0 statistical software was used to analyze the data. Statistical significance level was set at 0.05 for all tests. RESULTS: At the beginning of the semester, there was no significant difference in the accuracy of the 16 questions nor the scores between two groups (P > 0.05). After one semester of learning, the accuracy of the 16 questions answered by the course students at the end of the semester was significantly higher (P < 0.05), as well as the score of the course students. CONCLUSION: The general education course of Oral Science can significantly improve undergraduates' general knowledge of dentistry and effectively improve their oral hygiene behavior.

Exploring Dental Fusion in Primary Dentition: A Pediatric Dental Perspective.

Developmental anomalies of dentition includes abnormalities in teeth size, shape, structure, and number. Dental fusion is one such condition and is one of the most important and frequent developmental dental anomalies that can affect children's oral health. This condition can present various clinical challenges, including aesthetic concerns, occlusal disturbances, and potential impacts on the development and eruption of permanent teeth. The etiology of dental fusion is multifactorial, involving genetic, environmental, and possibly mechanical factors during tooth development. Diagnosis is done based on clinical examination and radiographic imaging to differentiate fusion from other similar anomalies such as gemination and concrescence. The present case report describes dental fusion in primary teeth seen in two young pediatric patients. These case reports aim to provide an overview of the prevalence, diagnosis, and management strategies for fusion in primary teeth, emphasizing the importance of a Pediatric Dentist in optimizing outcomes for affected children.

Towards dental diagnostic systems: Synergizing wavelet transform with generative adversarial networks for enhanced image data fusion.

The advent of precision diagnostics in pediatric dentistry is shifting towards ensuring early detection of dental diseases, a critical factor in safeguarding the oral health of the younger population. In this study, an innovative approach is introduced, wherein Discrete Wavelet Transform (DWT) and Generative Adversarial Networks (GANs) are synergized within an Image Data Fusion (IDF) framework to enhance the accuracy of dental disease diagnosis through dental diagnostic systems. Dental panoramic radiographs from pediatric patients were utilized to demonstrate how the integration of DWT and GANs can significantly improve the informativeness of dental images. In the IDF process, the original images, GAN-augmented images, and wavelet-transformed images are combined to create a comprehensive dataset. DWT was employed for the decomposition of images into frequency components to enhance the visibility of subtle pathological features. Simultaneously, GANs were used to augment the dataset with high-quality, synthetic radiographic images indistinguishable from real ones, to provide robust data training. These integrated images are then fed into an Artificial Neural Network (ANN) for the classification of dental diseases. The utilization of the ANN in this context demonstrates the system's robustness and culminates in achieving an unprecedented accuracy rate of 0.897, 0.905 precision, recall of 0.897, and specificity of 0.968. Additionally, this study explores the feasibility of embedding the diagnostic system into dental X-ray scanners by leveraging lightweight models and cloud-based solutions to minimize resource constraints. Such integration is posited to revolutionize dental care by providing real-time, accurate disease detection capabilities, which significantly reduces diagnostical delays and enhances treatment outcomes.

Automated orofacial virtual patient creation: A proof of concept.

OBJECTIVES: To (1) construct a virtual patient (VP) using facial scan, intraoral scan, and low-dose computed tomography scab based on an Artificial intelligence (AI)-approach, (2) quantitatively compare it with AI-refined and semi-automatic registration, and (3) qualitatively evaluate user satisfaction when using virtual patient as a communication tool in clinical practice. MATERIALS AND METHODS: A dataset of 20 facial scans, intraoral scans, and low-dose computed tomography scans was imported into the Virtual Patient Creator platform to create an automated virtual patient. The accuracy of the virtual patients created using different approaches was further analyzed in the Mimics software. The accuracy (% of corrections required), consistency, and time efficiency of the AI-driven virtual patient registration were then compared with the AI-refined and semi-automatic registration (clinical reference). User satisfaction was assessed through a survey of 35 dentists and 25 laypersons who rated the virtual patient's realism and usefulness for treatment planning and communication on a 5-point scale. RESULTS: The accuracy for AI-driven, AI-refined, and semi-automatic registration virtual patient was 85%, 85%, and 100% for the upper and middle thirds of the face, and 30%, 30%, and 35% for the lower third. Registration consistency was 1, 1 and 0.99, and the average time was 26.5, 30.8, and 385 s, respectively (18-fold time reduction with AI). The inferior facial third exhibited the highest registration mismatch between facial scan and computed tomography. User satisfaction with the virtual patient was consistently high among both dentists and laypersons, with most responses indicating very high satisfaction regarding realism and usefulness as a communication tool. CONCLUSION: The AI-driven registration can provide clinically accurate, fast, and consistent virtual patient creation using facial scans, intraoral scans, and low-dose computed tomography scans, enabling interpersonal communication. CLINICAL SIGNIFICANCE: Using AI for automated segmentation and registration of maxillofacial structures leads to clinically efficient and accurate VP creation, opening the doors for its widespread use in diagnosis, treatment planning, and interprofessional and professional-patient communication.

The relationships between unmet social needs, oral health measures, and dental service utilization in a pediatric population.

OBJECTIVES: Social Determinants of Health (SDoH) have been linked to health, including oral health and oral health behaviors. Objectives of this retrospective records review were to evaluate the relationships between self-reported unmet social needs and (1) oral health measures and (2) dental service utilization in a pediatric population at a hospital-based dental clinic. METHODS: Children 2-5 years of age whose families had completed a SDoH survey and who had an encounter with one United States (U.S.) urban children's hospital dental clinic within 6 months (± 3 months) of the survey date were included. A chart review was performed, and information was collected about the child's (1) oral health (e.g., plaque level, presence of caries) and (2) dental service utilization (e.g., no-show rates, number of dental surgeries). The data of patients with one or more parental/caretaker-reported unmet social needs were compared with that of patients with no unmet social needs. RESULTS: Inclusion criteria were met by 2646 children. Those with unmet social needs had significantly higher no-show rates at scheduled appointments than those without unmet social needs (p-value <0.001). Patients who identified as African/Black were more likely to report unmet social needs. There was no statistically significant difference in oral health measures of patients with or without unmet social needs. CONCLUSIONS: Children in this population demonstrated varying associations between unmet social needs, health measures, and health behaviors, suggesting a likely complicated association between unmet social needs and health.

The Impact of Orthodontic Adhesive Containing Resveratrol, Silver, and Zinc Oxide Nanoparticles on Shear Bond Strength: An In Vitro Study.

Introduction The goal of orthodontic treatment is to provide patients with esthetic smiles and functional occlusion. Despite best efforts and continuous evolution of materials, white spot lesions present a persistent hindrance to the desired treatment outcome. Nanoparticles have shown efficacy in reducing microbial activity; however, currently, there is a need for natural anti-cariogenic compounds with minimal side effects. Resveratrol is a natural compound belonging to the polyphenol group and has shown promising anti-microbial efficacy. This study aimed to evaluate the influence of dentin bonding agents incorporated with the following three different nanoparticles on shear bond strength: silver nanoparticles (Ag-Np), zinc oxide nanoparticles (ZnO-Np), and resveratrol nanoparticles (RSV-Np). Materials and methods A total of 40 premolar teeth therapeutically extracted were assigned to four equal groups of n=10 each. Groups 1, 2, and 3 used experimental adhesives doped with silver, zinc oxide, and resveratrol nanoparticles, respectively. Group 4 was bonded using unmodified adhesive. The bonded teeth were then subjected to shear bond strength (SBS) testing which was measured using a Universal Testing Machine (model no. UNITEST-10; Pune, India: ACME Engineers). Statistical analyses were performed using SPSS version 21 (Armonk, NY: IBM Corp.), employing one-way ANOVA and Tukey's post-hoc test for pairwise comparisons. Results Shear bond strength testing revealed that the control group with unmodified adhesive (8.6 MPa) had the highest SBS, followed by RSV-Np (7.6 MPa), Ag-Np (6.3 MPa), and ZnO-Np (5.65 MPa). Although the experimental groups demonstrated decreased SBS compared to the control, the values for Ag-Np and RSV-Np fell within the acceptable range. Conclusion Resveratrol nanoparticles had the least impact on shear bond strength among the experimental groups. These findings suggest that the incorporation of resveratrol nanoparticles in dentin bonding agents can provide anti-cariogenic effect without significantly impacting the adhesive's mechanical properties thereby providing a new and promising alternative to synthetic nanoparticles. Further studies are recommended to optimize the balance between anti-microbial efficacy and bond strength in clinical applications.

Present state and perceived future use of teledentistry in long-term care facilities in Japan: A cross-sectional study.

Objectives: Teledentistry could be effective in managing oral health through the provision of oral hygiene instruction and diagnostic services. This study aimed to assess the perception and usefulness of teledentistry in Japanese long-term care facilities. Methods: We conducted a questionnaire survey to compare related factors of the usefulness of teledentistry and identify issues in its implementation. We chose 1000 facilities using a stratified random sampling method. The questionnaires were sent to the facilities in August 2021 and collected in December of the same year. Responses to the questionnaire items regarding the usefulness of teledentistry for oral management were divided into three groups according to the answer: perceiving teledentistry as "useful," "not useful," or "neither," including facilities that do not currently use teledentistry. Results: In total, 26.1% (261) responded to the questionnaire, and among these, 184 facilities answered the question regarding the usefulness of teledentistry. Only two of these facilities implemented teledentistry. Facilities with dental hygienists (p = 0.040) and those that receive insured medical treatment: reimbursement for oral feeding maintenance II (p = 0.040) tended to perceive teledentistry as useful in the management of patients with coronavirus disease. The higher the number of services that responded to the question "what kind of services do you think can be provided via teledentistry?" the higher the percentage of "useful" responses. Conclusions: Although only a few facilities use teledentistry, many long-term care facilities perceive it as useful even without using it. The presence of dental hygienists and interprofessional work done with reimbursement for oral feeding maintenance II contributed to the perception of the usefulness of teledentistry in long-term care facilities.

Validation of the Polish version of an Ageism Scale for Dental Students (ASDS-PL).

BACKGROUND: Ageism is one of the common forms of discrimination and prejudice. It has also been shown to be present in health professionals, including doctors, nurses, and medical students. AIMS: The aim of this study was to translate the Ageism Scale For Dental Students (ASDS) into Polish, perform a culture adaptation, and conduct a preliminary validation analysis. METHODS: The survey was administered to 202 third-, fourth-, and fifth-year students at the Jagiellonian University (No. 1072.6120.283.2020). Data were analyzed using principal components analysis (PCA) with an oblique, Promax rotation, and confirmatory factor analysis (CFA). Cronbach's alpha (α) was calculated to check the internal consistency reliability. Discriminant validity was analyzed using the Mann-Whitney and Kruskal-Wallis test. RESULTS: PCA produced a 10-item scale distributed into three factors, which explains 59.52% of the total variance. Factor 1 ("preconceived notions about dental treatment") contained four items (α = 0.703), Factor 2 ("cost-benefit of providing care for older patients")-four items (α = 0.660) and Factor 3 ("dentist-older patient interaction")-two items (α = 0.662). CFA confirmed that the model is a good fit (RMSE = 0.058, 90% CI from 0.014 to 0.092, CFI = 0.950, and TLI = 0.926). The discriminant validity showed statistically significant differences in factors or individual items related to the year of the study, gender, and having a history of living with an older person(s) or an older patient(s) treated. CONCLUSION: The validation of the ASDS conducted in Poland identified 10 items with sufficient validity and reliability.

Big Data in Epidemiology: Brave New World?

Epidemiology is experiencing a significant shift toward the utilization of big data for health monitoring and decision-making. This article discusses the recent example of the World Health Organization (WHO) global oral health status report and regional summaries, which faced criticisms due to its reliance on big data from the Global Burden of Disease (GBD) study. We address the arguments for and against the use of big data in epidemiology and provide an assessment of the value and limitations of big data epidemiology. Moreover, we provide recommendations as to how the oral health community should reconcile traditional epidemiologic approaches with big data and advanced data analytics. This Perspective article highlights the challenges of the current epidemiologic landscape, the potential of big data, and the need for a balanced approach to data utilization in epidemiology.

Effectiveness of Preprocedural Mouthwashes: A Triple-Blind Randomised Controlled Clinical Trial.

OBJECTIVES: Bioaerosols generated during dental treatment are considered to be potentially carriers of infectious respiratory pathogens. The use of preprocedural mouthwashes has been suggested to reduce microbial load prior to dental surgery procedures. However, limited evidence on the effectiveness of preprocedural mouthwashes regarding mitigating respiratory pathogens exists. The aim of this clinical trial is to determine and compare the effectiveness of 3 preprocedural mouthwashes recommended by the Department of Health of the Hong Kong Special Administrative Region in the mitigation of respiratory pathogens during dental care in pandemic times. METHODS: In all, 228 participants were block-randomised to three groups based on preprocedural mouthwash used: povidone-iodine, hydrogen peroxide, and chlorhexidine digluconate. Participants, operators, and assessors were blinded to the assigned mouthwashes (triple-blind). Saliva was assessed for the presence of a number of respiratory pathogens (19 viruses including SARS-CoV-2). Changes in the prevalence and mean number of "any" pathogen present following mouthwash use were determined. RESULTS: Overall, the prevalence of any detected respiratory viral pathogens in the preprocedural saliva was 3.5% as compared to the postprocedural saliva: 1.3% (P = .034). The mean (SD) number of viruses was significantly lower following preprocedural mouthwash use, from 0.04 (0.18) to 0.01 (0.11) (P = .025). No significant differences were observed in the downward change (∆) of any detected virus (prevalence) (P = .155) or in the reduction of the mean number (∆) of any detected virus in the postprocedural saliva compared to preprocedural saliva of participants with respect to mouthwash used (P = .375). CONCLUSIONS: The practice of using preprocedural mouthwash, as recommended by the government of Hong Kong, was effective in reducing the number of respiratory pathogens present during dental aerosol-generating treatment. This study lends support for official policy on use of preprocedural mouthwashes, which has significant implications for practice and policy during pandemics.

Self-assessment skills of undergraduate students in operative dentistry: Preclinical performance and gender.

BACKGROUND: Self-assessment is key to improving the quality of work performed by dental professionals. The ability to accurately self-assess has been found to correlate with better clinical performance, making it an important skill for students to master during their dental education. Furthermore, studies conducted in dental schools across the world have shown that lower-performing students tend to overestimate their abilities compared to their peers. OBJECTIVES: This study aimed to evaluate the self-assessment skills of dental students in pre-clinical operative dentistry and to investigate the impact of gender on these skills. MATERIAL AND METHODS: Third-year undergraduate dental students (N = 335) took 2 pre-clinical practical exams: class II composite preparation and restoration. Students self-assessed each assignment using a standardized rubric, and 6 calibrated faculty members graded all procedures blindly and independently. The difference between students' self-assessment scores (S) and mean faculty grades (F) reflected the students' self-assessment skills and was referred to as the Student-Faculty (S-F) gap. A positive S-F gap indicates that students overestimate their work, while a negative S-F gap indicates that students underestimate their work. Data was stratified by gender and by faculty-determined student performance, and then statistically analyzed. RESULTS: The study demonstrated a statistically significant difference between faculty grades and students' self-assessment scores. Positive S-F gaps were observed across all procedures, indicating overestimation, with a mean S-F gap of 11.4 ±9.9%. A negative correlation was found between faculty grades and S-F gaps. Higher-performing students showed smaller S-F gaps (4.8 ±5.3%) compared to lower-performing students (21.2 ±9.68%). Furthermore, male students showed significantly higher S-F gaps (14.0 ±10.3%) compared to females (9.7 ±9.4%). CONCLUSIONS: Overestimation was more prevalent among lower-performing and male students compared to higher-performing and female students. Future investigations should consider exploring effective interventions and educational strategies aimed at improving students' self-awareness and their ability to accurately assess their performance.