International journal of dental hygiene最新文献

Objectives: To compare the efficacy of chlorhexidine (CHX) and amine fluoride (AF) toothpastes on oral flora in fixed orthodontic treatment patients.

Methods: Thirteen patients were given toothpaste containing AF, and 12 patients were given toothpaste containing CHX. Microbial and periodontal records were taken before, 1 week, and 5 weeks after the bonding procedure. Gingival index (GI), plaque index (PI), and bleeding on probing (BOP) values were recorded by the same expert calibrated before the study. Biofilm samples were taken, and then colony counts of the samples were evaluated. Whether the variable values obtained in the groups at the time of measurement were different was examined by Nonparametric Analysis of Longitudinal Data in Factorial Experiments-Nonparametric Tests for the F1_LD_F1 design for longitudinal data.

Results: Gender distribution was similar in the study groups (χ² = 1.944; p = 0.163). The mean age of the patients did not differ in the groups (t = 0.502; p = 0.620). In general, the variable values analysed within the scope of the study did not show significant differences between groups and time (p > 0.05). When the pairwise interactions were analysed, it was found that there was a significant difference only for PI values (F = 3.411; p = 0.035).

Conclusions: While there were no significant differences observed in BOP, GI, and S. mutans levels and changes in IgA and IgE values between toothpastes containing CHX and AF, the PI index of CHX-containing toothpastes exhibited a notably lower level. Both AF- and CHX-containing toothpastes can be used for managing biofilm, controlling bacteria, and minimising gingivitis in subjects undergoing fixed orthodontic treatment.

Objective: This pilot study aimed to explore knowledge, attitudes and confidence levels of Obstructive Sleep Apnoea (OSA) before and after case-based education among dental hygiene students. Moreover, to give an international perspective, this study included students from the US and Scandinavia.

Methods: A longitudinal multicentre study assessed dental hygiene students' OSA knowledge, attitudes and confidence through a case-based education model. Students from six dental hygiene programmes in the US, Norway and Sweden participated from 2021 to 2022. The intervention group (N = 89) received preview material, live synchronous OSA lecture, case-based screening of fictitious patients and clinical practice using the STOP-Bang screening tool. Controls (N = 70) followed the standard curriculum. The Obstructive Sleep Apnoea Knowledge and Attitudes (OSAKA) questionnaire, comprising 18 knowledge and five attitude/confidence questions, was used. Reliability was assessed and nonparametric tests determined OSAKA knowledge score differences among the baseline, 6 months and 12 months intervals.

Results: The intervention increased OSA knowledge with the largest increase in proportions of correct responses occurring between the baseline and 6 months and all single items showing a higher proportion of correct answers at 12 months compared to the baseline. Students' attitudes regarding the importance of OSAKA and confidence in managing patients increased from the baseline to both 6 months and 12 months.

Conclusion: The case based educational intervention increased OSA knowledge and improved attitudes and confidence among dental hygiene students. The results also determined that the OSAKA questionnaire can be used in a setting with dental hygiene students to provide an overview of their knowledge, attitudes and confidence toward OSA. Current sleep medicine education in dental hygiene programmes is limited, suggesting the need for enhanced and sustained educational interventions to address this knowledge gap.

Objectives: This registry-based study aimed to describe cross-sectional dental and demographic data with focus on diagnosis and treatment of periodontal disease. A second aim was to analyse the extent and content of performed periodontal treatment in patients with varying degrees of periodontitis and if treatment was provided on equal terms. An additional aim was to identify if possible differences in treatments were related to type of dental insurance system.

Methods: A study population, 225,913 individuals ≥ 20 years living in the Region of Västra Götaland, was identified by the Swedish Quality Registry for Caries and Periodontal Diseases (SKaPa). Registry data were retrieved for the period 2010-2012. Logistic regression models were used to predict the probability of receiving periodontal interventions and access to fixed annual fees.

Results: Among the study population, 17% had periodontal disease (≥ 4 teeth with periodontal pockets ≥ 4 mm) and constituted the final study sample. The probability of periodontal intervention increased with severity of periodontitis, in moderate (OR = 2.3) and severe cases (OR = 5.2) compared to the group with minor disease (p < 0.001). Severe periodontitis was associated with male gender, increasing age and smoking. About 30% of the individuals remained untreated over the 3-year period. Individuals with fee-for-service were more likely to receive periodontal intervention than individuals with fixed annual fees (OR = 1.7; p < 0.001).

Conclusion: Severe periodontitis and being in the fee-for-service system were associated with more periodontal interventions. However, one-third of the study subjects remained untreated. These findings indicate the need for improved care on equal terms for patients with periodontal disease.

Objective: Bacterial biofilm control around dental implants is critical for the health of the peri-implant soft tissue and longevity of dental implants. The patient's role in regular biofilm removal around dental implants is just as important as that of the dental hygienist. The purpose of this study is to identify the relationship between at-home dental implant care and patients' perceptions of peri-implant soft tissue health.

Methods: A 15-item paper survey was distributed to adult patients undergoing professional dental hygiene maintenance at a specialty dental practice within a 3-month period and had at least one dental implant. Survey items included participant demographics, patient-reported adjunctive aids for dental implants and patient perceptions of dental implant oral hygiene practices and peri-implant soft tissue health.

Results: There was a statistical difference between time spent cleaning dental implants and peri-implant soft tissue health. An association was found between patients who reported spending more time cleaning their dental implants and less bleeding (p = 0.046/54%), gingival inflammation (p = 0.026/58%) and gingival tissue redness (p = 0.036/53%). Additionally, patients who more frequently underwent professional dental hygiene maintenance perceived less gingival inflammation (p = 0.001/66%).

Conclusion: To promote peri-implant soft tissue health and reduce oral biological complications, best practice guidelines should be implemented, including optimal at-home dental implant care and regular professional dental hygiene maintenance.

Introduction: With evidence suggesting that dental hygienists (DH) and dental therapists (DThs) can undertake a significant proportion of routine clinical work, this paper explores the number of recent graduates and students currently in training in the UK and Ireland and considers whether there are sufficient DH and DTh registrants to positively impact on population needs.

Methods: An online questionnaire survey was distributed by the Directors of Dental Hygiene and Therapy Group to all programme leads of dental hygiene and dental therapy programmes during December 2023.

Results: There was a 100% response rate. The majority of programmes award a Bachelor's degree, with a minority offering a Diploma or Foundation degree; one programme awards an MSc level qualification. The number of graduates in the 2022-2023 academic year was 429, registered with both the General Dental Council (GDC) and Dental Council of Ireland (DCI). The numbers of DH students expected to graduate in 2023-2024 academic year is likely to increase by 44% and in 2024-2025 this will increase by a further 12% compared to the previous year. The anticipated numbers of DTh graduates registering across the UK in 2023-2024 academic year is 312, representing in a slight decrease of 3% from the previous year; in 2024-2025 this figure is expected to remain static at 313.

Conclusions: The results of this study demonstrate the numbers of students recently graduated and in training in the UK and Ireland, during 2022-2025. The numbers of registrants is slightly increasing, but there is a need for detailed information regarding working practices to inform future workforce planning; this will inform the need for increasing training numbers.

Objective: This study investigated oral health status in 60-year-old individuals over 12 years.

Materials and methods: Data were obtained from The Swedish National Study on Aging and Care (SNAC). One hundred nineteen 60-year-old individuals (48% females) underwent a clinical and radiographic baseline examination (2001-2003) and follow-up examination in 2013-2015. For statistical analyses, paired t-tests and McNemar's test were performed. Statistical significance was determined at p < 0.05.

Results: At the 12-year follow-up, the mean number of teeth and the proportion of individuals having ≥ 20 teeth decreased (p < 0.001). The mean number of teeth with buccal/lingual and approximal caries lesions increased (p < 0.029 and p < 0.031). Individuals with a distance from the cement-enamel junction to the bone of ≥ 5 mm increased in total (p < 0.002) and in males (p < 0.006). The prevalence of gingivitis increased in total (p < 0.001). The prevalence of periodontitis showed a significant increase in total (p < 0.043) and in females (p < 0.039).

Conclusion: The present study indicates that oral health status in 60-year-old individuals deteriorates over 12 years. However, the deteriorations were minor in terms of tooth loss, caries lesions, and changes in periodontal status.

Introduction: Large language models such as Gemini, GPT-3.5, and GPT-4 have demonstrated significant potential in the medical field. Their performance in medical licensing examinations globally has highlighted their capabilities in understanding and processing specialized medical knowledge. This study aimed to evaluate and compare the performance of Gemini, GPT-3.5, and GPT-4 in the Korean National Dental Hygienist Examination. The accuracy of answering the examination questions in both Korean and English was assessed.

Methods: This study used a dataset comprising questions from the Korean National Dental Hygienist Examination over 5 years (2019-2023). A two-way analysis of variance (ANOVA) test was employed to investigate the impacts of model type and language on the accuracy of the responses. Questions were input into each model under standardized conditions, and responses were classified as correct or incorrect based on predefined criteria.

Results: GPT-4 consistently outperformed the other models, achieving the highest accuracy rates across both language versions annually. In particular, it showed superior performance in English, suggesting advancements in its training algorithms for language processing. However, all models demonstrated variable accuracies in subjects with localized characteristics, such as health and medical law.

Conclusions: These findings indicate that GPT-4 holds significant promise for application in medical education and standardized testing, especially in English. However, the variability in performance across different subjects and languages underscores the need for ongoing improvements and the inclusion of more diverse and localized training datasets to enhance the models' effectiveness in multilingual and multicultural contexts.

Objective: To describe participants' experiences of being treated for peri-implant mucositis.

Methods: A qualitative study with nine individual, semistructured interviews was performed. The interview guide was based on a focus group interview. The participants had recently been treated for peri-implant mucositis on one dental implant in a randomised controlled trial (RCT). The treatment included information, oral hygiene instructions, nonsurgical treatment with Er:YAG laser or ultrasonic scaler and professional cleaning in several sessions over 6 months. The interviews performed were analysed using qualitative manifest and latent content analysis.

Results: The manifest results showed that learning how to brush the teeth, and repeated feedback, was appreciated, and increased the motivation to improve oral hygiene habits. Most participants experienced no discomfort from the treatment. The participants had an understanding that a longer treatment time was required to ensure the quality of the treatment. Respect and attention were important elements of the personal treatment. The latent results suggest that treatment with a laser or an ultrasonic scaler was not perceived as the most important part of the treatment. Participants felt that receiving information about the treatment process was more important; moreover, a person-centred approach gave a feeling of good and safe care.

Conclusions: The present study highlights factors of importance in treatment of peri-implant mucositis with laser and ultrasonic scaler. A person-centred approach with respect and attention is important for a good and safe experience and may be important factors in future treatments.

Objectives: The objective of this study was to investigate the correlations between salivary physicochemical parameters, adiposity, and caries indices in Hong Kong adolescents.

Methods: A total of 921 adolescents aged 12-15 years from four randomly selected local secondary schools were invited to participate in this cross-sectional study. Dental examinations including the number of decayed, missing, and filled teeth (DMFT), salivary physicochemical parameters, and anthropometric measurements were performed. The Mann-Whitney U test was used to examine the differences in salivary parameters and adiposity indices between participants with different levels of caries experience. Correlations between adiposity indices, salivary parameters, and caries indices were examined using Spearman's correlation coefficients.

Results: The participation rate was 83.6%. After exclusion, data from 695 adolescents were analysed. Adolescents with high caries experience (DMFT ≥ Significant Caries Index [SiC Index]) had significantly higher weight-to-height ratio (W/H) and waist circumference (WC) z-scores and lower unstimulated and stimulated salivary flow rates and buffering capacity than those with DMFT < SiC Index. Except for body mass index z-score, the other adiposity indices were negatively correlated with at least one salivary physicochemical parameter (stimulated salivary flow rate or salivary buffering capacity) (r_s ranged from -0.078 to -0.132). After adjusting for age and sex, decreased stimulated salivary flow rate was associated with higher body fat percentages, WC, and waist-to-height ratio z-scores, whereas low salivary buffering capacity was associated with higher W/H and WC z-scores.

Conclusion: There is a potential link between adiposity indices and certain salivary physicochemical parameters that are implicated in the aetiology of dental caries.

Objectives: For the dental hygiene profession, a need exists to engage students in research experiences as undergraduate students to foster interest in research and improve the implementation of evidence-based practice. The purpose was to explore the relationships between original research experiences and evidence-based practice among undergraduate dental hygiene students.

Methods: This quantitative survey research study of undergraduate dental hygiene students in the USA was conducted in 2021. Original research experience was measured using the Wessex Research Network (WReN) spider instrument and evidence-based practice was measured using the Knowledge, Attitudes, Access and Confidence Evaluation (KACE) instrument. Invitation e-mails were sent to the directors of US entry-level dental hygiene programs to forward the survey e-mail message to students in the last semester of their dental hygiene programs. The data were analysed using descriptive statistics, bivariate analysis and multiple linear regression analysis.

Results: A total of 128 responses were analysed. The foundational knowledge domain of research experience was found to be a significant predictor of evidence-based practice and the mediators of evidence-based knowledge, evidence-based attitudes, evidence-based access and evidence-based confidence.

Conclusion: Research experience was found to be a significant predictor of Evidence-Based Practice. Engaging undergraduate dental hygiene students in research opportunities may prepare students for the clinical application of evidence-based practice and original research projects.