Prevalence of Dental Caries, Oral Hygiene Knowledge, Status, and Practices among Visually Impaired Individuals in Chennai, Tamil Nadu.

Aim. To assess the prevalence of dental caries, oral hygiene knowledge, status, and practices among visually impaired individuals in Chennai, Tamil Nadu. Materials and Methods. A cross-sectional study was conducted among 404 visually impaired individuals in Chennai city, Tamil Nadu. Four schools were randomly selected for conducting the study. The oral hygiene status, prevalence of caries, and knowledge and attitude towards oral care among visually impaired individuals were collected and analysed. Results. In the present study, whilst 42% of individuals had fair oral hygiene status, 33% had good hygiene followed by 25% having poor oral hygiene. The overall mean number of DMFT was estimated to be 4.5 ± 2.7. The mean number of decayed teeth was 3.1 ± 2.2, mean number of missing teeth was 0.8 ± 1.4, and mean number of filled teeth was 0.5 ± 1.3. Conclusion. Whilst oral hygiene status was found to be relatively fair, there was a high rate of dental caries among the sample population. This shows that there is lack of knowledge regarding oral health maintenance. Therefore, early identification of caries coupled with effective oral health promotion programs providing practical knowledge to visually impaired students would prove beneficial.

Health Information Technology (HIT): A Hit or Miss in Private Dental Practice in Chennai, Tamil Nadu, India ­ A Cross Sectional Survey

Objective: To assess the knowledge, perception and use of Health Information Technology (HIT) among private dental practitioners in Chennai, Tamil Nadu, India. Material and Methods: The sample population consisted of private dental practitioners in Chennai District of Tamil Nadu who were individually approached to participate in the cross-sectional survey. A structured, self-reported, close-ended questionnaire, which contained queries on the knowledge, usage and concerns about HIT in their practice, was designed. Descriptive statistics such as frequency distribution and percentages were analyzed using SPSS version 24. Results: Of the 483 dental clinics that were approached, 352 dental practitioners completed the questionnaire survey. A significant proportion of dental practitioners (65 percent) reported positive attitude towards use of HIT systems and believed that HIT systems could help make their work easier and efficient. However, it is unfortunate to note that almost half (47 percent) the dental practitioners were not interested in implementing HIT systems in their practice due to various monetary concerns such as installation and maintenance costs. Conclusion: The widespread adoption of HIT provides system connectivity and information exchange among providers of the same organisation, providers at different organisations and, ultimately, providers practising regionally and nationally.

2,2-Bis(ethoxycarbonyl)vinyl (BECV) as a versatile amine protecting group for selective functional-group transformations.

A 2,2-Bis(ethoxycarbonyl) vinyl- (BECV) group was used for the selective protection of amines at room temperature in the presence of potentially interfering functional groups such as OH, SH, COOH as well as other NH(2) groups. Several functional group transformations such as esterification, O-alkylation, O-acylation, N-alkylation, N-acylation, S-alkylation can selectively be carried out in the presence of the BECV group. The selective deprotection of the BECV group was achieved in a short time using ethylenediamine at room temperature while several other functional groups such as benzoate, aliphatic esters, amides and ethers remain intact. The BECV group shows orthogonal stability against the common protecting groups such as Fmoc, Cbz and Boc.