Palatal rugae as an unique and stable marker in personal identification-An interracial pilot study.

Background: In post-mortem scenarios, often it is a very difficult process to establish a person's identity. Rugae are unique in that they are protected from trauma as they are insulated from heat by tongue and buccal pad of fat unlike fingerprint or lip print that is prone to destruction. Aim and Objectives: This study was aimed to compare the palatal rugae among people of different races. The sole objectives of the study were to assess the predominant pattern in the selected groups, reliability of rugae pattern in personal identification, to evaluate reliability of sex determination and to compare the total number of rugae on right and left sides of the palate among the males and females. Study Design: A total of 90 subjects were enrolled into the study and divided into three groups that are African, Dravidian and Mongoloid population. Shapes of rugae present were analyzed according to the classification given by Kapali et al. (1997) and Thomas & Kotze (1983). Result: The predominant rugae shape in African and Dravidian population was wavy pattern, whereas Mongoloid race was predominant in curve pattern. African and Dravidian males were predominant in wavy pattern when compared to Mongoloid males where unification type was more predominant. Conclusion: A statistically significant association between the rugae shape in three populations exists, although subtle yet definite.

Challenges in implementation of biomedical waste management among the dental practitioners in a tier 2 town in India - A cross-sectional study.

Aim: This study is proposed to assess the knowledge and practices among dental practitioners in the implementation of biomedical waste (BMW) management rules (2016) in Kumbakonam, Tamil Nadu; to assess the effective usage of the four colour-coded bins, those are used to handle the BMW; and to assess the service of the BMW collecting and disposing agents. Methodology: A questionnaire comprising of 12 closed-ended and 1 open-ended question regarding the dental practitioner's management of BMW in their daily clinical practice was developed. After validation, the questionnaire was sent as Google forms to 54 dental practitioners who are practicing at Kumbakonam, and responses were received from all. The collected data was entered in an Excel sheet, and then percentages were obtained for each response from the participants. Result: The most common challenges were, space-occupying BMW disposal bins as well as the lack of regular collection of BMW, this may be because the disposal agent's services cover a larger geographical area with lesser wastage collecting manpower. Though most of the study participants were well aware and practiced the management, still a small percentage of practitioners were lacking in this. The responses on storage and handling the BMW management reflect the knowledge gap in more than half of them. Conclusion: These challenges indicate the need for a well-established network of BMW collecting agencies and cost-effective, tailor-made colour-coded bins for suitable and continuous usage in dentistry.