Objectives: To assess (1) adolescents’ preference to use social media (SM) to receive oral health information (OHI) and (2) factors associated with this preference. Materials and methods: A cross-sectional survey was conducted in 2016, Eastern Province, Saudi Arabia including male middle school students. A questionnaire assessed explanatory variables including background, previous OHI seeking practices, internet use purposes, convenience of using SM for OHI and perceived usefulness of obtained OHI. The outcome variable was respondents’ preference to use SM to receive OHI. Simple and multiple logistic regression models were used for statistical analysis. Results: The response rate was 91.2% (456/500). Of those, 57.5% preferred using SM to receive OHI. The odds for this were significantly associated with being Saudi (OR = 3.12, 95%CI = 1.36, 7.18), previously using Twitter (OR = 4.59, 95%CI = 1.77, 11.89) and Instagram for OHI (OR = 2.60, 95%CI = 1.51, 4.45), frequent use of the internet to obtain OHI (OR = 1.25, 95%CI = 1.02, 1.54) and ease of obtaining OHI using the Internet (OR = 2.69, 95%CI = 1.5, 4.39). Conclusion: Most adolescents preferred using SM to receive OHI. This was associated with previous OHI seeking practices and convenience of using SM. These findings have implications for designing SM-based health education campaigns targeting adolescents.

Examine the effect of dental curing light and laser treatments applied after Silver Diamine Fluoride (SDF) on dentin hardness in carious primary molars. This in-vitro study consisted of 30 extracted primary molars with caries extending into dentin without pulpal involvement. The collected teeth were randomly divided into three groups: group 1: received SDF then Sub-ablative low-energy of Er,Cr:YSGG laser, group 2: received SDF followed by application of curing light for 40 s, group 3: had SDF treatment only. In all groups, 38% Ag (NH3)2F SDF was used. Vickers hardness test was performed on sound dentin below carious lesion. Kruskal–Wallis Test was used to determine the mean difference in dentin hardness of the groups at 5% Significance level using SPSS software. Surface hardness of sound dentin below the carious lesion was statistically significantly higher in the laser + SDF group (891.24 ± 37.33 kgf/mm²) versus the two other groups (Light cure + SDF = 266.65 ± 90.81 kgf/mm² and SDF only = 117.91 ± 19.19 kgf/mm²) with p-value ≤ 0.001. Although Photopolymerization of SDF increases the surface hardness of sound dentin below the carious lesion, applying laser after SDF has the highest surface hardness due to the laser’s sub-ablation of dentin.

Objectives. To report the prevalence and distribution of nonsyndromic dental anomalies in children in eastern Saudi Arabia. Methods. This retrospective records review study involved radiographic examination of 6–18 years old pediatric patients who attended the Dental Hospital of the College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia. Four calibrated examiners recorded nonsyndromic dental anomalies from patients’ digital orthopantomograms (OPG). The anomalies recorded were related to tooth number, shape, and location. Descriptive statistics, chi-square test, and Fisher exact tests were used to report prevalence and differences by gender, nationality, and medical history at the 5% significance level. Results. Of 2226 reviewed patients’ records, 1897 met the inclusion criteria and were included in the study. The study sample had equal distribution of males (52.6%) and females (47.4%) and comprised 81.2% Saudi children with a mean age of 8.8 ± 1.84 years. Most study subjects (97.8%) were in mixed dentition and 88.7% were healthy. The prevalence of dental anomalies was as follows: teeth rotations (24.5%), ectopically erupted teeth (6%), congenitally missing permanent teeth (5.4%), peg lateral (1.1%), supernumerary (0.5%), gemination (0.3%), and fusion (0.1%). No statistically significant differences were found in the distribution of dental anomalies by patients’ gender, medical history, and nationality ( $p$ value ≥0.05). Conclusion. This study showed that teeth rotations were the most common dental anomalies followed by ectopic eruptions and congenitally missing teeth. The study findings may guide dental practitioners to better diagnose and manage children with dental anomalies in eastern Saudi Arabia.

Background. Sugar-added diet has been associated with increased risk of developing dental caries. Objective. To investigate the dietary determinants of caries prevalence and experience based on the frequency versus the quantity of consumption among Saudi schoolchildren. Methods. This is a cross-sectional study that invited 12- to 15-year-old intermediate school students (N=3000) in four cities in the Eastern Province of Saudi Arabia. Data collection comprised a pretested questionnaire and clinical examination. Caries was diagnosed based on the World Health Organization (WHO) criteria and was recorded as a decayed, missing, filled tooth (DMFT). The questionnaire included questions regarding the consumption of different quantities and frequencies of multiple sugar-containing food items. Multiple logistic and linear regression models were used to assess the influence of sugar-containing food on the dental caries experience (DMFT) and prevalence of decayed teeth. SPSS version 20.0 was used to analyze the data at 5 significance level. Results. Of 3000 invited students, 2262 participated with a participation rate of 75.4. Our study found that the frequency of soft drink consumption was significantly associated with increased caries prevalence (adjusted OR=1.33, 95 CI 1.071.65) and experience (adjusted B=0.46, 95 CI 0.160.76). The frequency of consumption of fruit juice was statistically significantly associated with increased caries experience (adjusted B=0.48, 95 CI 0.160.79). The interaction terms between the frequency and the quantity of consumption of energy drinks, soft drinks, and sweetened milk were statistically significantly related to caries experience and prevalence. Conclusion. Although the frequency of consumption of sugar-containing drinks was more associated with caries experience and prevalence, the interaction between frequency and quantity was highly related to the prevalence and experience of dental caries.

Objective: The objective of this study is to investigate the association between oral health practices and similar practices adopted by parents, close friends and classmates in a group of Saudi male teenagers. Material and methods: A cross-sectional study was conducted in Dammam, Saudi Arabia, in 2016 including 12–14-year-old intermediate school students (n = 478). A questionnaire assessed socioeconomic background, whether participants, their parents, close friends and classmates brushed twice daily, used tobacco, snacked on sugary foods or sugary drinks and perceiving a supportive classroom environment. Univariate and multivariate logistic regression models assessed the association of parents’, close friends’, classmates’ practices and classroom support with participants’ four practices, controlling for socioeconomic factors. Results: The response rate was 93.9%. In multivariate regression, close friends’ practices had a strong significant association with teenagers’ tooth brushing (OR = 4.45; 95%CI = 1.09, 18.12), tobacco use (OR = 5.63; 95%CI = 3.44, 7.88), snacking on sugary foods (OR = 14.42; 95%CI = 7.89, 21.89) and sugary drinks (OR = 7.05; 95%CI = 5.97, 9.20). The percentages of classmates perceived to brush their teeth and use tobacco were significantly associated with the respective practices in teenagers (OR = 1.03 and 1.02). Fathers’ snacking on sugary drinks was significantly associated with that of the teenagers (OR = 4.04; 95%CI= 1.03, 15.85). Conclusions: In early adolescence, four oral health practices of Saudi males were associated with those perceived to be adopted by their close friends. Fathers’ use of sugary drinks was also significantly associated with that of teenagers.