Toothbrushing is considered fundamental self-care behavior for maintenance of oral health, and brushing twice a day has become a social norm, but the evidence base for this frequency is weak. This systematic review and meta-analysis aims to assess the effect of toothbrushing frequency on the incidence and increment of carious lesions. Medline, Embase, Cinahl, and Cochrane databases were searched. Screening and quality assessment were performed by 2 independent reviewers. Three different meta-analyses were conducted: 2 based on the caries outcome reported in the studies (incidence and increment) with subgroup analyses of categories of toothbrushing frequency; another included all studies irrespective of the caries outcome reported with the type of dentition as subgroups. Meta-regression was conducted to assess the influence of sample size, follow-up period, diagnosis level for carious lesions, and methodological quality of the articles on the effect estimate. Searches retrieved 5,494 titles: after removing duplicates, 4,305 remained. Of these, 74 were reviewed in full, but only 33 were eligible for inclusion. Self-reported infrequent brushers demonstrated higher incidence (odds ratio [OR], 1.50; 95% confidence interval [CI], 1.34 to 1.69) and increment (standardized mean difference [SMD], 0.28; 95% CI: 0.13 to 0.44) of carious lesions than frequent brushers. The odds of having carious lesions differed little when subgroup analysis was conducted to compare the incidence between ≥2 times/d vs <2 times/d (OR: 1.45; 95% CI: 1.21 to 1.74) and ≥1 time/d vs <1 time/d brushers (OR: 1.56; 95% CI: 1.37 to 1.78). When meta-analysis was conducted with the type of dentition as subgroups, the effect of infrequent brushing on incidence and increment of carious lesions was higher in deciduous (OR: 1.75; 95% CI: 1.49 to 2.06) than permanent dentition (OR: 1.39; 95% CI: 1.29 to 1.49). Findings from meta-regression indicated that none of the included variables influenced the effect estimate.

Childhood circumstances such as socio-economic status and family structure have been found to influence psychological, psychosocial attributes and Oral Health Related Quality of Life (OHRQoL) in children. Therefore, the aim of this study was to conduct a systematic review of the published literature to assess the influence of parental Socio-Economic Status (SES) and home environment on children’s OHRQoL. A systematic search was conducted in August 2013 using PubMed, Medline via OVID, CINAHL Plus via EBSCO, and Cochrane databases. Studies that have analysed the effect of parental characteristics (SES, family environment, family structure, number of siblings, household crowding, parents’ age, and parents’ oral health literacy) on children’s OHRQoL were included. Quality assessment of the articles was done by the Effective Public Health Practice Project’s Quality Assessment Tool for Quantitative studies. Database search retrieved a total of 2,849 titles after removing the duplicates, 36 articles were found to be relevant. Most of the studies were conducted on Brazilian children and were published in recent two years. Early Childhood Oral Health Impact Scale and Children’s Perception Questionnaire11-14 were the instruments of choice in preschool and school aged children respectively. Findings from majority of the studies suggest that the children from families with high income, parental education and family economy had better OHRQoL. Mothers’ age, family structure, household crowding and presence of siblings were significant predictors of children’s OHRQoL. However, definitive conclusions from the studies reviewed are not possible due to the differences in the study population, parental characteristics considered, methods used and statistical tests performed.

Most of the literature on determinants of dental caries has been limited to socio-economic and behavioural aspects: we found few studies evaluating the effects of family environment and parental oral hygiene behaviour. Children belonging to lower socio-economic classes experienced more caries. In more than half the studies, children of highly educated, professional and high income parents were at lower risk for dental caries. There were conflicting results from studies on the effect of variables related to family environment, parents' oral hygiene behaviour and parent's disease status on dental caries in their children.

We investigated the effect of dental anxiety and dental visiting habits, as well as various socio-demographic variables, on oral health-related quality of life (OHQoL) among subjects aged 15-54 years living in Udaipur district, India. The total sample size was 1235 individuals and a stratified cluster sampling procedure was employed to collect the representative sample. Dental anxiety and oral health-related quality of life were assessed using the Corah Dental anxiety scale and the OHQoL-UK(W) questionnaire, respectively. The majority of the female and older individuals showed higher dental anxiety than their male and younger counterparts. Stepwise linear regression analysis revealed that the best predictors of dental anxiety were, in descending order, occupation, gender and education, which provided a variance of 10.3%. Females were more likely to have poor OHQoL than males. Dental anxiety had a significant influence on OHQoL, people with high dental anxiety being 2.34 times more likely to present poor OHQoL than those having low anxiety. Furthermore, it was found that those who never visited a dentist had an odds ratio of 1.62 for poor OHQoL relative to those who had visited a dentist within the last 12 months. Dental anxiety differed significantly with age and dental visiting practices, and had a significant impact on oral health-related quality of life after controlling for other variables.

The present study highlighted that the oral hygiene and periodontal status of the present study population is poor and was influenced by medical diagnosis, IQ level, disabled sibling, parent's level of education and economic status.

Oral hygiene, gingival, and periodontal status decreased as the stage of CKD increased and was worse among study subjects that the controls. Dental caries did not differ significantly with the stage of the renal disease but was significantly lower among study subjects than the controls.

The present cross-sectional study was conducted to assess the prevalence of caries and treatment needs among 127 institutionalized subjects aged 5-22 years attending a special school for students with hearing impairment in Udaipur City, Rajasthan, India. The data were collected using the methods and standards recommended by the WHO for oral health surveys, 1997. Dentition status and treatment needs along with DMFT, DMFS, dmft, dmfs were recorded using a Type III examination procedure. ANOVA, chisquared test and multiple regression analysis were conducted using the SPSS software package (version 11.0). The mean DMFT was 2.61. Of the 127 subjects, 111 (87.4 %) needed treatment. Filling of one tooth surface was necessary for 79.5% of the subjects. Pulp treatment was needed in less than 7%. There was a high prevalence (83.92%) of decayed teeth, whereas only 7.14% of subjects had filled teeth. Multiple regression analysis showed that DMFT had a close association with age. Linear regression analysis revealed that age explained a variance of 32% and 25.4% for DMFT and dmft respectively The findings of this study demonstrate that young people with impaired hearing in this region have a high prevalence of dental caries, poor oral hygiene, and extensive unmet needs for dental treatment. This highly alarming situation requires immediate attention. (J. Oral Sci. 50, [161][162][163][164][165] 2008)

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