The Impact of the COVID-19 Pandemic on Pattern of Antibiotic and Opioid Prescriptions by Dentists in Alberta, Canada.

OBJECTIVES: After the shutdown of most dental services during the COVID-19 lockdown, the oral health community was concerned about an increase in prescribing opioids and antibiotics by dentists due to patients' limited access to dental offices. Therefore, the objective of this study was to investigate the impact of COVID-19 pandemic on the pattern of antibiotic and opioid prescriptions by dentists in Alberta, Canada. METHODS: Data obtained from the Tracked Prescription Program were divided into antibiotics and opioids. Time periods were outlined as pre-, during-, and postlockdown (phase 1 and 2). For the number of prescriptions and average supply, each monthly average was compared to the corresponding prelockdown monthly average, using descriptive analysis. Time series analyses were conducted using regression analyses with an autoregressive error model. Data were trained and tested on monthly observations before lockdown and predicted for during- and postlockdown. RESULTS: A total of 1.1 million antibiotics and 400,000 opioids dispense were tracked. Decreases in the number of prescriptions during lockdown presented for antibiotics (n = 24,933 vs. 18,884) and opioids (n = 8892 vs. 6051). Average supplies (days) for the antibiotics (n = 7.10 vs. 7.55) and opioids (n = 3.92 vs. 4.05) were higher during the lockdown period. In the trend analyses, the monthly number of antibiotic and opioid prescriptions showed the same pattern and decreased during lockdown. CONCLUSION: The COVID-19 pandemic altered the trends of prescribing antibiotics and opioids by dentists. The full impact of COVID-19 pandemic on the population's oral health in light of changes in prescribing practices by dentists during and after lockdown warrants further investigation.

The use of general anesthesia for dental treatment of children with special healthcare needs in Alberta, Canada.

BACKGROUND: Children with special healthcare needs (SHCN) often require specialized interventions due to their disabilities. Dental general anesthesia (DGA) is a treatment modality, which improves their access to care but concerns about repeated DGAs persist. AIM: This study investigated DGA utilization in children with SHCN and identified factors associated with multiple DGAs in Alberta, Canada (2010-2020). DESIGN: This retrospective population-based study used administrative data encompassing all children (<18 years) undergoing DGA in publicly funded facilities. Children were identified as SHCN based on their diagnosis codes and categorized into behavioral/psychiatric disorders, mental/intellectual disabilities, physical disabilities, systemic conditions, syndromes/congenital anomalies, physical-mental disabilities, and disabilities with medical conditions. RESULTS: This study analyzed 3884 DGA visits for children with SHCN, predominantly males aged 6-11 and from low-income families. Mental/intellectual disabilities were prevalent (31.8%), and autism was the leading disease. Caries was the primary dental diagnosis across all groups, whereas pulp problems were higher in psychiatric/behavioral disorders (23.6%), and periodontal problems were more common in physical-mental disabilities (13.2%). 28.7% had multiple DGAs, with younger age, disabilities with medical conditions, mental/intellectual disabilities, and initial pulp treatments, increasing the likelihood of multiple DGAs. CONCLUSION: This study highlights the importance of individualized prevention and less conservative treatments for younger children to reduce oral health disparities.

Sociocultural determinants of children's oral health among immigrants in Canada.

OBJECTIVE: A conceptual model was designed and tested to predict immigrant children's oral health in Canada by examining parental acculturation and perceived social support (PSS) using structural equation modelling. METHODS: A convenience sample of first-generation immigrant parents and their children aged 2-12 years were recruited by multilingual community workers in Edmonton, Canada. Parents completed a validated questionnaire on demographics, child's oral health (OH) behaviours, parental acculturation and PSS. Dental examinations determined children's dental caries rate using DMFT/dmft index. Structural equation modelling (SEM) was used to analyse the data. RESULTS: A total of 336 families participated in this study. The average parental acculturation level was 10.46 with a maximum of 15, and the average PSS was 63.27 with a maximum of 75. SEM showed that 77% of the variance of DMFT/dmft scores in children was explained by parental PSS, acculturation level, immigration-related variables, socioeconomic variables and children's OH behaviours. The direct effect of parental PSS was associated with a significantly reduced rate of dental caries (ß = -.076, p-value = .008) and lower sugar consumption (ß = -.17, p-value = .04). While the mediation effect of parental acculturation on PSS was associated with positive OH behaviours of children (e.g., toothbrushing frequency and dental care utilization), the indirect effect was negatively associated with caries rate (ß = .77, p-value = .00). CONCLUSIONS: The direct effect of Parental Perceived Stress Scale (PSS) was associated with more favourable oral health behaviours and a lower prevalence of dental caries, while the mediation effect of acculturation was linked to a higher prevalence of dental caries.

Healthcare Utilization of Oral and Oropharyngeal Cancer Patients in Emergency Department and Outpatient Settings: An 8-year Population-Based Study.

INTRODUCTION: This study aimed to determine trends in the healthcare utilization by Oral Cavity and Oropharyngeal cancer patients across emergency department (ED) and outpatient settings in Alberta and examine the predictors of ED visits. METHODS: This is a retrospective, population-based, cohort study using administrative data collected by all healthcare facilities between 2010 and 2019 in Alberta, Canada. Trend of visits to different facilities, patients' primary diagnosis, and predictors of ED visits were analyzed. RESULTS: In total, 34% of patients had at least one cancer-related ED visit. With a rise of 31% in cancer incidence, there was a notable upswing in visits to outpatient clinics and community offices, while ED visits decreased. Cancer stage, rural residence, high material deprivation score, and treatments were found as predictors of ED visits. CONCLUSION: Improved symptom management and better care access for disadvantaged and rural oral cancer patients may decrease avoidable ED visits.

Trends and predictors of unplanned hospitalization among oral and oropharyngeal cancer patients; an 8-year population-based study.

PURPOSE: The incidence of oral cancers, particularly HPV-related oropharyngeal cancer, is steadily increasing worldwide, presenting a significant healthcare challenge. This study investigates trends and predictors of unplanned hospitalizations for oral cavity cancer (OCC) and oropharyngeal cancer (OPC) patients in the province of Alberta, Canada. METHODS: This retrospective, population-based, cohort study used administrative data collected from all hospitals in the province. Using the Alberta Cancer Registry (ACR), a cohort of adult patients diagnosed with a single primary OCC or OPC between January 2010 and December 2017 was identified. Linking this cohort with the Discharge Abstract Database (DAD), trends in hospitalizations, primary diagnoses, and predictors of unplanned hospitalization (UH) and 30-day unplanned readmission were analyzed. RESULTS: Of 1,721 patients included, 1,244 experienced 2,228 hospitalizations, with 48 % being categorized as UH. The UHs were significantly associated with a higher mortality rate, 18.5 % as compared to 4.6 % for planned, and influenced by sex, age groups, comorbidities, cancer types, stages, and treatment modalities. The rate of UH per patient decreased from 0.69 to 0.54 visits during the study period (P = 0.02). Common diagnoses for UH were palliative care and post-surgical convalescence, while surgery-related complications such as infection and hemorrhage were frequent in 30-day unplanned readmissions. Predictors of UH included cancer stage, material deprivation, and treatment, while cancer type and comorbidity predicted readmissions. CONCLUSION: The rate of UHs showed a noteworthy decline in this study, which could be a result of enhanced care coordination. Furthermore, identified primary diagnosis and predictors associated with UHs and readmissions, provide valuable insights for enhancing the quality of care for cancer patients.

Community water fluoride cessation and rate of caries-related pediatric dental treatments under general anesthesia in Alberta, Canada.

OBJECTIVE: This study examined the rate of caries-related dental treatments under general anesthesia (GA) in fluoridated and non-fluoridated communities in Alberta, Canada, between 2010 and 2019. METHODS: This retrospective, population-based study included all children ( < 12 years of age) living in Calgary (non-fluoridated) and Edmonton (fluoridated) who underwent caries-related dental treatments under GA at publicly funded facilities. Demographics and dental data were extracted from health administrative databases for three time periods of 2010/11 (pre-cessation), 2014/15, and 2018/19 (post-cessation). RESULTS: Among 2659 children receiving caries-related treatments under GA, the mean (SD) and median (IQR) age were 4.8 (2.3) and 4 (3-6) years, respectively, and 65% resided in the non-fluoridated area. The analysis revealed that the cessation of water fluoridation was significantly associated with an increased rate of caries-related GA events per 10,000 children in both age groups (0-5 and 6-11 years), with a more pronounced effect in 0-5-year-olds in non-fluoridated areas. The risk of dental treatments under GA was also positively associated with post-cessation time. CONCLUSION: Discontinuing water fluoridation appears to negatively affect young children's oral health, potentially leading to a significant increase in caries-related dental treatments under GA and oral health disparities in this pediatric population.

RéSUMé: OBJECTIF: Cette étude a examiné la fréquence des traitements dentaires liés aux caries sous anesthésie générale (AG) dans les communautés fluorées et non fluorées en Alberta, Canada, entre 2010 et 2019. MéTHODES: Cette étude rétrospective, basée sur la population, a inclus tous les enfants (< 12 ans) vivant à Calgary (non fluorée) et à Edmonton (fluorée) qui ont subi des traitements dentaires liés aux caries sous AG dans des établissements financés par des fonds publics. Les données démographiques et dentaires ont été extraites des bases de données administratives de la santé pour trois périodes : 2010/11 (pré-arrêt), 2014/15 et 2018/19 (post-arrêt). RéSULTATS: Parmi les 2 659 enfants recevant des traitements liés aux caries sous AG, l'âge moyen (DS) et la médiane (IQR) étaient de 4,8 (2,3) et 4 (3­6) ans, respectivement, et 65 % résidaient dans la zone non fluorée. L'analyse a révélé que l'arrêt de la fluoration de l'eau était significativement associé à une augmentation du taux d'événements liés aux caries sous AG parmi 10 000 enfants dans les deux groupes d'âge (0­5 et 6­11 ans), avec un effet plus prononcé chez les 0­5 ans dans les zones non fluorées. Le risque des traitements dentaires sous AG était également positivement associé au temps post-arrêt. CONCLUSION: La cessation de la fluoration de l'eau semble avoir un impact négatif sur la santé bucco-dentaire des jeunes enfants, entraînant potentiellement une augmentation significative des traitements dentaires liés aux caries sous AG et des disparités en matière de santé bucco-dentaire dans cette population pédiatrique.

Racial discrimination, self-efficacy, and oral health behaviours in adolescents.

To examine the mediation effect of discrimination on the association of self-efficacy and oral health behaviours among adolescents. A cross sectional study of adolescents aged 12 to 18 years who were recruited from the University outpatient dental clinic were asked to complete a questionnaire consisting of: demographics (12 items), oral health behaviours (7 items), general self-efficacy (10 items) and self-efficacy for self-care (SESS, 15 items). Perceived discrimination was assessed if the adolescent had ever been treated unfairly based on their race. Perceived discrimination was assessed if the adolescent had ever been treated unfairly based on their race. Using pathway analyses, the relationship between oral health behaviours, self-efficacy, and discrimination was explored. Mediation and hierarchal logistic regression analyses were conducted. Of 252 participants, mean (SD) age was 14 (1.8) years old. 60% were female, 81% were born in Canada, 56% identified themselves as White, and 20% perceived discrimination. Mean score of all task-specific self-efficacies were significantly different within respective oral health behaviour categories (P-value <0.001). Of demographics, age and ethnicity (White) were significantly associated with discrimination (OR = 1.25: 95% CI; 1.06-1.48 and OR = 0.29: 95% CI; 0.15-0.55, respectively). Perceived discrimination was positively associated with higher sugar consumption and mediate the association between diet self-efficacy and adolescent's dietary behaviour. Significant mediation effect of perceived discrimination on the association of diet specific self-efficacy and diet oral health behaviour was observed. Oral health behaviours were self-reported which may have influenced the results.

Diagnosis and prevalence of probable awake and sleep bruxism in adolescents: an exploratory analysis.

The aims of this study were to perform an exploratory analysis of probable awake (AB) and sleep bruxism (SB) prevalence using of different diagnosis criteria based on the International Consensus; evaluate the associations between self-report and clinical signs/symptoms in adolescents. Participated in this cross-sectional study 403 adolescents aged 12- to 19-years-old enrolled in public and private schools from Belo Horizonte, Brazil. Parents/caregivers answered a questionnaire about sociodemographic status and adolescents' health status. Adolescents answered a questionnaire evaluating AB (e.g., grinding and clenching) and SB (e.g., grinding, bracing, and thrusting) activities and frequent headaches. A clinical examination was performed on adolescents to evaluate bruxism clinical signs/symptoms (pain upon palpation on masseter and temporal, linea alba, indentation on the tongue and attrition wear severity). Descriptive statistics and Pearson's Qui-square test were performed (P≤0.05). Adolescents mean age was 14.3±1.5 years, and 58.1% were female. Self-report of SB was identified in 31% of participants and self-report of AB in 51.6%. Almost all adolescents (99%) presented at least one tooth with attrition wear (98.5% on enamel and 0.5% on dentin), with a mean number of 12.4±5.7 teeth. Depending on the diagnosis criteria, the prevalence of probable SB and AB varied from 0- 99% and 0.2- 99%, respectively. A high inconsistency was found for the prevalence of probable AB and SB in adolescents, which were influenced by the different clinical sings/symptoms used as diagnosis criteria. Frequent headaches and pain upon palpation on masseter and temporal muscle were associated to self-report of AB and SB among adolescents.

Diagnosis and prevalence of probable awake and sleep bruxism in adolescents: an exploratory analysis

Abstract The aims of this study were to perform an exploratory analysis of probable awake (AB) and sleep bruxism (SB) prevalence using of different diagnosis criteria based on the International Consensus; evaluate the associations between self-report and clinical signs/symptoms in adolescents. Participated in this cross-sectional study 403 adolescents aged 12- to 19-years-old enrolled in public and private schools from Belo Horizonte, Brazil. Parents/caregivers answered a questionnaire about sociodemographic status and adolescents' health status. Adolescents answered a questionnaire evaluating AB (e.g., grinding and clenching) and SB (e.g., grinding, bracing, and thrusting) activities and frequent headaches. A clinical examination was performed on adolescents to evaluate bruxism clinical signs/symptoms (pain upon palpation on masseter and temporal, linea alba, indentation on the tongue and attrition wear severity). Descriptive statistics and Pearson's Qui-square test were performed (P≤0.05). Adolescents mean age was 14.3±1.5 years, and 58.1% were female. Self-report of SB was identified in 31% of participants and self-report of AB in 51.6%. Almost all adolescents (99%) presented at least one tooth with attrition wear (98.5% on enamel and 0.5% on dentin), with a mean number of 12.4±5.7 teeth. Depending on the diagnosis criteria, the prevalence of probable SB and AB varied from 0- 99% and 0.2- 99%, respectively. A high inconsistency was found for the prevalence of probable AB and SB in adolescents, which were influenced by the different clinical sings/symptoms used as diagnosis criteria. Frequent headaches and pain upon palpation on masseter and temporal muscle were associated to self-report of AB and SB among adolescents.

Resumo Os objetivos deste estudo foram realizar uma análise exploratória da prevalência de provável bruxismo em vigília (BV)e do sono (BS) utilizando diferentes critérios de diagnóstico baseados no Consenso Internacional; avaliar a associação entre o autorrelato e os sinais/sintomas clínicos em adolescentes. Participaram deste estudo transversal 403 adolescentes de 12 a 19 anos de idade matriculados em escolas públicas e privadas de Belo Horizonte, Brasil. Os pais/responsáveis responderam um questionário sobre dados sociodemográficos e estado de saúde dos adolescentes. Os adolescentes relataram atividades do BV (ranger e apertar) e BS (ranger, bracing e thrusting) e dores de cabeça frequentes. Um exame clínico foi realizado nos adolescentes para avaliar os sinais/sintomas clínicos do bruxismo (dor à palpação nos músculos masseter e temporal, marcas de endentação na língua e linha alba, desgaste dentário por atrição). Análises descritiva e teste Qui-quadrado de Pearson foram realizados (P≤0,05). A média de idade dos adolescentes foi de 14,3±1,5 anos e 58,1% eram do sexo feminino. O autorrelato de BS foi identificado em 31% dos participantes e o autorrelato do BV em 51,6%. Quase a totalidade dos adolescentes (99%) apresentaram pelo menos um dente com desgaste dentário (98,5% em esmalte; 0,5% em dentina), com média de 12,4±5,7 dentes acometidos. Dependendo do critério de diagnóstico, a prevalência do provável BS e BV variou de 0- 99% e 0,2- 99%, respectivamente. Uma grande inconsistência foi identificada na prevalência de provável BV e BS em adolescentes, que foram influenciadas pelos diferentes sinais/sintomas usados como critério de diagnóstico. Dores de cabeça frequentes e dor à palpação no masseter e temporal foram associados ao autorrelato de bruxismo em crianças e adolescentes.

Multiple cases in case-based learning: A qualitative description study.

INTRODUCTION: Case-based learning is widely used in health professions education to improve clinical learning, but little is known about how best to approach multiple cases in this active learning strategy. Our study explored dental student views of multiple case-based learning in oral pathology. MATERIALS AND METHODS: Qualitative description informed the study design. Data were collected through semi-structured, individual interviews with twenty-one third- and fourth-year dental students who participated in multiple case-based learning seminars. Data were analysed using inductive, manifest thematic analysis. RESULTS: Themes were identified at approach and case levels. Approach-level themes included preparing students for clinical practice and board exams and maximising exposure (e.g., to lesions/conditions), knowledge application, and engagement within the time allotted for the learning session. Case-level themes included using challenging but manageable cases, linking cases to lecture content, providing the necessary clinical information to solve the cases, and ensuring that cases were authentic and common with non-typical presentations. Aspects of themes encompassed definitions of case characteristics, benefits, conditions of implementation, and recommendations for improvement. CONCLUSION: Cases should be considered individually, collectively, purposefully, and contextually in multiple case-based learning. Evaluations of learning and behavioural outcome are needed to further establish the effectiveness of approaches and case characteristics in multiple case-based learning.

Potential of magnetic quinoa biosorbent composite and HNO3 treated biosorbent for effective sequestration of chromium (VI) from contaminated water.

The present study aims to prepare novel quinoa biosorbent (QB), acid activated QB (QB/Acid) and its nanocomposite with magnetic nanoparticles (QB/MNPs) for batch scale Cr removal from contaminated water. The Cr adsorption was systematically studied at different pH (2-9), adsorbent dosage (1-3 g/L), initial concentration (25-200 mg/L), contact time (180 min) and competing ions in water. Maximum Cr adsorption was observed onto QB/MNPs (57.4 mg/L), followed by QB/Acid (46.35 mg/g) and QB (39.9 mg/g). The Cr removal by QB/MNPs was higher than QB/Acid and QB. Results revealed that the highest Cr removal was obtained at optimum pH 4, 25 mg/L, and 2 g/L dosage. The FTIR spectra displayed various functional groups on adsorbents surface serving as a potential scaffold to remove Cr from contaminated water. The equilibrium and kinetic Cr adsorption data best fitted with Freundlich and pseudo-second order models, respectively (R2 ≥ 0.96). The QB/MNPs showed excellent reusability in five adsorption/desorption cycles (4.7% decline) with minor leaching of Fe (below threshold level). The coexisting ions in groundwater showed an inhibitory effect on Cr sequestration (5%) from water. The comparison of Cr adsorption by QB/MNPs and QB/Acid showed better potential for Cr sequestration than various previously explored adsorbents in the literature.

Quinoa is a cereal crop and after harvesting quinoa straws are either burnt or thrown away which can cause several environmental problems. It would be beneficial to utilize quinoa straws and its modified forms as adsorbents for the water remediation. Therefore, current study aims to estimate the adsorption capacity of quinoa biomass as biosorbent (QB) and its modifications (QB/Acid and QB/MNPs) to treat Cr (VI) contaminated water. The influence of various parameters governing the Cr removal from water has been evaluated. The reusability of QB/MNPs has also been evaluated for its economical use without losing effectiveness for Cr removal from water. The comparison of Cr adsorption by QB/MNPs and QB/Acid showed better adsorption potential for Cr sequestration than various previously explored adsorbents in the literature.

Associations between perceived self-efficacy and oral health behaviours in adolescents.

OBJECTIVES: Self-efficacy is a strong health predictor as it affects patients' certainty about their ability to perform recommended behaviours to improve their health. The aim of this study was to examine the associations between perceived self-efficacy and oral health behaviours among adolescents. METHODS: A convenience sample of adolescents aged 12 to 18 years old was recruited from the University of Alberta dental clinic. Demographics, oral health behaviours, self-rated oral health and task-specific and general self-efficacy were assessed using a questionnaire with three sections. For the comparisons of outcomes across different categories, Student t-test, multivariate regression and chi-squared tests were used. RESULTS: A total of 252 adolescents with average (SD) age of 14 (1.7) years participated in the study; 60% were girls; 81% were born in Canada; 56% were White; and 61% had dental coverage. Demographic characteristics had no significant correlation with general self-efficacy. However, correlation coefficients indicated that younger adolescents had higher dietary self-efficacy (negative correlation), girls had higher toothbrushing and dental visit self-efficacy, and those with dental coverage had higher dental visit self-efficacy. A significant association was found between toothbrushing, dietary habits and dental visits self-efficacy (subscales of task-specific self-efficacy) and their respective outcomes (frequency of toothbrushing, sugar intake and regular dentist visits). General self-efficacy was significantly associated with frequency of toothbrushing and participant's self-rated oral health. CONCLUSION: Higher task-specific and general self-efficacy correlated with better oral health behaviours among adolescents. Therefore, behavioural interventions should be designed to enhance self-efficacy among adolescents in order to improve their oral health outcomes.

Immigrant Parents' Perceived Social Support and Their Children's Oral Health Behaviors and Caries Experience.

This study examined the associations between immigrant parents' perceived social support (PSS) and their children's oral health behaviors (OHB) and caries experience. We recruited immigrant parents and children aged 2−12 years. Data were collected on the sociodemographic and OHB information of the children. The parents' total PSS score and its dimensions were measured using the validated Personal Resource Questionnaire (PRQ2000). Dental examinations determined the children's caries experience using the DMFT/dmft index. A total of 336 parents and children were included in the study. Household income predicted the parents' PSS (B = −5.69; 95% CI −9.077, −2.32). Children of parents with higher PSS reported ≥2 toothbrushing/day (p ≤ 0.05). Among the PSS domains, parental education level predicted their social integration (B = −0.16; 95% CI −0.30, −0.02) and nurturance (B = −0.24; 95% CI −0.43, −0.06). Family income predicted social integration (B = −0.17; 95% CI −0.33 −0.01), worth (B = −0.23; 95% CI −0.39 −0.06), and assistance (B = −0.22; 95% CI −0.42 −0.01). Parents with higher scores of intimacy and social integration were more aware of their children's oral health (p = 0.01). The parental social integration mean scores were significantly higher among parents whose children consumed ≥1 sugary snack/day (p = 0.02). All five domain scores were significantly higher among parents of children who reported ≥2 toothbrushing/day compared with children who brushed <2/day (p < 0.05). The results demonstrated that parents' PSS only improved their children's toothbrushing frequency. Compared to other domains, social integration was significantly associated with children's OHB. Neither parental PSS total score nor domains were associated with DMFT/dmft.

Possible sleep bruxism, smartphone addiction and sleep quality among Brazilian university students during COVID-19 pandemic.

Objectives: To evaluate the association of sleep bruxism activity with smartphone addiction and sleep quality among university students during COVID-19 pandemic. Material and Methods: A cross-sectional online survey with 546 university students in social distancing was conducted (May 29th to June 2nd 2020). Participants should be undergraduate and graduate students enrolled in Brazilian public/private universities. A self-completed questionnaire collected sociodemographic characteristics, academic information, and severity of possible sleep bruxism (PSB) activities (grinding, bracing, and thrusting). Students answered the Brazilian version of Pittsburgh sleep quality index (PSQI-BR) and short form of the smartphone addiction scale (SAS-SV). Descriptive statistics and multinomial logistic regression were performed (p=0.05). Results: Sample mean age was 24.9 (±5.5) years. Students with higher scores of PSQI-BR were more likely to present severe PSB-bracing (OR=1.154; 95%CI=1.057-1.260), severe PSB-grinding (OR=1.133; 95%CI=1.048-1.225) and severe PSB-thrusting (OR=1.197;95%CI=1.107-1.294). Students who had children presented 3 times more chance (OR=3.193; 95%CI=1.236-8.250) to report severe PSB-thrusting. Being female increased the chance of reporting moderate (OR=3.315; 95%CI=1.333-8.914) and severe (OR=2.940; 95%CI=1.116-7.747) PSB-thrusting. Students not enrolled in distance learning presented 2 times more chance (OR=2.638; 95%CI=1.233-5.649) of reporting moderate PSB-grinding. Students with higher scores in SAS-SV had a slight increase in the chance of presenting mild (OR=1.042; 95%CI=1.009-1.077) and moderate (OR=1.065; 95%CI=1.018-1.115) PSB-bracing, as well as mild (OR=1.044; 95%CI=1.011-1.078) and moderate (OR=1.041; 95%CI=1.005-1.077) PSB-thrusting. Conclusion: Smartphone addiction, worse sleep quality, having children, female sex and not being enrolled in distance learning were associated possible sleep bruxism during COVID-19 pandemic.

Fractal-fractional operator for COVID-19 (Omicron) variant outbreak with analysis and modeling.

The fractal-fraction derivative is an advanced category of fractional derivative. It has several approaches to real-world issues. This work focus on the investigation of 2nd wave of Corona virus in India. We develop a time-fractional order COVID-19 model with effects of disease which consist system of fractional differential equations. Fractional order COVID-19 model is investigated with fractal-fractional technique. Also, the deterministic mathematical model for the Omicron effect is investigated with different fractional parameters. Fractional order system is analyzed qualitatively as well as verify sensitivity analysis. The existence and uniqueness of the fractional-order model are derived using fixed point theory. Also proved the bounded solution for new wave omicron. Solutions are derived to investigate the influence of fractional operator which shows the impact of the disease on society. Simulation has been made to understand the actual behavior of the OMICRON virus. Such kind of analysis will help to understand the behavior of the virus and for control strategies to overcome the disseise in community.

Retrospective study of factors associated with late detection of oral cancer in alberta: A qualitative study.

Oral cancer continues to be diagnosed in advanced stages, giving patients lower chances of survival. The objective of this study was to explore reasons for delayed diagnosis of oral cancer in Alberta. A retrospective qualitative design was implemented through seven steps suggested for conducting a narrative clinical document. Data was retrieved from the Alberta Cancer Registry database between 2005 and 2017. A sample of initial consultation notes (ICN) of oral and oropharyngeal cancer patients were identified through a purposeful sampling method and added to the study until saturation was achieved. A deductive analysis approach inspired by the model pathways to treatment health care provider (HCP) was employed. From the 34 ICN included in our analysis, five main categories were identified: appraisal interval, help-seeking interval, diagnosis interval, pre-treatment interval, and other contributing factors such as health-related behaviours, system delay, and tumor characteristics. These factors negatively contributed to early detection of oral and oropharyngeal cancers and affect treatment wait time with patients, providers, and the healthcare system. Patient's lack of awareness, provider's oversight and prolonged access to care were the main reasons of delay in cancer diagnosis and management in our study. A sustainable plan for public awareness interventions and implementation of a solid curriculum for medical and dental students is needed to enhance their related knowledge, competence in clinical judgement, and treatment managements.

Dental students' perceptions of the wildcard as a novel teaching technique in case-based learning.

OBJECTIVE: Cases used in case-based learning should be realistic, relatively difficult, engaging, and educational to maximize clinical knowledge and skills. Data are needed to support the effectiveness of existing and new techniques to ensure these case attributes. The purpose of this study was to explore dental students' perceptions of the wildcard technique in case-based learning. This novel technique aims to ensure key case attributes by adding new information to the analysis of a case that challenges the initial diagnosis and/or treatment plan. METHODS: Constructivism (paradigm) and interpretative description (approach) informed the study design. Participants were 21 third- and fourth-year dental students who took part in an oral pathology seminar in which the wildcard was employed. Data were collected through individual, semi-structured interviews that were digitally recorded and transcribed verbatim. Inductive, manifest thematic analysis was used to analyze the data. Several verification strategies were implemented to ensure rigor throughout data analysis. RESULTS: Identified themes suggest that students perceived the wildcard as a new scenario that simulated clinical practice regarding settings, situations, conditions, and required skills. They also enjoyed the wildcard and found it effective in terms of knowledge acquisition, skills development, and engagement. Students valued and recommended wildcards that were challenging, authentic, and educational. CONCLUSIONS: Students positively valued the wildcard, which seems to ensure several case attributes. Learning and behavioral outcome evaluations are needed to further establish the effectiveness of the wildcard in case-based learning.

Factors Associated with Oral Cancerous and Precancerous Lesions in an Underserved Community: A Cross-Sectional Study.

Street-involved people with limited access to regular healthcare have an increased risk of developing oral cancer and a lower survival rate. The objective of this study was to measure the prevalence of oral cancerous/precancerous lesions and determine their associated risk factors in a high-risk, underserved population. In this cross-sectional study, English-speaking adults aged 18 years and older living in a marginalized community in Edmonton were recruited from four non-profit charitable organizations. Data were collected through visual oral examinations and a questionnaire. Descriptive statistics, chi-squared tests, and logistic regressions were applied. In total, 322 participants with a mean (SD) age of 49.3 (13.5) years completed the study. Among them, 71.1% were male, 48.1% were aboriginal, and 88.2% were single. The prevalence of oral cancerous lesions was 2.4%, which was higher than the recorded prevalence in Canada (0.014-1.42: 10,000) and in Alberta (0.011-1.13: 10,000). The clinical examinations indicated that 176 (54.7%) participants had clinical inflammatory changes in their oral mucosa. There was a significant association between clinical inflammatory oral lesions and oral cancerous/precancerous lesions (p < 0.001). Simple logistic regression showed that the risk of the presence of oral cancerous/precancerous lesions was two times higher in participants living in a shelter or on the street than in those living alone (OR = 2.06; 95% CI: 1.15-3.82; p-value: 0.021). In the multiple logistic regression analysis, the risk of oral cancerous/precancerous lesions was 1.68 times higher in participants living in a shelter or on the street vs. living alone after accounting for multiple predictors (OR = 1.67; 95% CI: 1.19-2.37; p-value: 0.022). The results demonstrated a high prevalence of cancerous/precancerous lesions among the study participants, which was significantly associated with clinical inflammatory oral lesions. The evidence supports the need for developing oral cancer screening and oral health promotion strategies in underserved communities.

The relationship between nitrous oxide sedation and psychosocial factors in the pediatric outpatient setting.

BACKGROUND: Moderate sedation using nitrous oxide (N2 O) has become common in pediatric dentistry. However, less is known regarding the role of patients' characteristics and psychosocial factors in their cooperative behavior during dental procedures with N2 O. AIMS: This study aimed to examine pediatric dental patients' behaviors while undergoing N2 O sedation and to measure the associations between child's cooperative behavior and demographic, physiological responses, and psychosocial factors. METHODS: In this within-subject observational study, participants received 40% N2 O/O2 , by nasal hood, for non-surgical dental procedures. The main outcome measure was the extent of cooperative behaviors, as assessed by the Frankl scale at five timepoints, namely T1: pre-administration of N2 O, T2: post-administration of N2 O, T3: dental injection, T4: dental treatment, and T5: post-procedure administration of 100% O2 . Predictors included age, sex, psychosocial factors reported using the Parenting Style and Dimension Questionnaire and Spence Children Anxiety Scale, as well as pulse rate, respiratory rate, and oxygen saturation. The Wilcoxon signed-rank test and generalized estimation equation were used for data analyses. RESULTS: In 80 children with a mean age of 7.2 (2.2) years, administration of N2 O was significantly associated with cooperative behaviors (odds ratio [OR]:2.62, confidence interval [CI]: 1.46-4.70, p = .001) when adjusted for other predictors. There was no interaction between any of the predictors and N2 O sedation on behaviors. Except for the authoritative parenting style (OR: 1.96, CI: 1.16-3.31, p = .012), which predicted more cooperative behaviors, other predictors were not associated with behavioral outcomes. CONCLUSION: In children sedated with N2 O, behavior was independent of the child's demographic and psychosocial factors. While sedated, demographics, vital signs, and anxiety did not contribute to behavior management. However, screening for parenting style may help predict the child's behavioral response.

Frequency and pattern of outpatient dental visits during the COVID-19 pandemic at hospital and community clinics.

BACKGROUND: The authors aimed to measure the frequency of dental visits before and during the COVID-19 pandemic and to evaluate whether dental visits can be predicted from demographic characteristics, socioeconomic status, oral problem diagnoses, and dental service providers. METHODS: Participants for this retrospective study were patients visiting dental care providers at hospital- and community-based outpatient clinics in Alberta, Canada. Data were retrieved from electronic databases from March 12, 2020, through September 30, 2020, and from the same period for 2018 and 2019. The COVID-19 lockdown was declared for March 12 through May 14, 2020. Data were analyzed using analysis of variance test and multiple logistic regression at α = 0.05. RESULTS: From a total of 14,319 dental visits, 5,671, 5,036, and 3,612 visits occurred in 2018, 2019, and 2020, respectively. The mean (standard deviation) frequency of daily visits was 36.69 (15.64), 32.09 (15.51), and 24.24 (14.78), respectively. Despite the overall decrease, the frequency of visits for infections, salivary problems, and temporomandibular disorders increased during the COVID-19 pandemic in 2020. Dental visits during the pandemic were associated with more complicated oral diagnoses and dental services as well as higher economic status. CONCLUSIONS: During the COVID-19 pandemic, the frequency of dental visits decreased specifically during lockdown. Patients with complicated problems requiring urgent treatments mainly visited dental clinics. Reduced access to care was observed primarily among socially disadvantaged groups. PRACTICAL IMPLICATIONS: Although guidelines and related recommendations have been effective in restoring the compromised dental system during the COVID-19 pandemic, additional modifications are needed to promote in-person visits to improve the oral health status of patients.