Evaluation of Structural and Compositional Changes on the Root Surface Exposed to Diode Laser (810 nm): An In?vitro Study

Background: The laser therapy has been used as an adjuvant for conventional periodontal disease as they exhibit a bactericidal effect on scaling and root planning by its thermal and photo disruptive effects on the pathogens. This study focuses on the structural and compositional changes induced on the root surfaces of teeth following diode laser (DL) application with increasing quantum of exposure time. Objective: The objective of this study was to evaluate the structural and compositional changes on the root surface of extracted human permanent teeth after application of DLs (810 nm) with varying time interval. Materials and Methods: Twenty samples of single?rooted periodontally compromised extracted teeth were utilized for this study. Root planning was done and the roughness caused by the instrumentation was measured using profilometric analysis. Then, the samples were divided into four groups, with DL application time: Group 1 – laser application for 15 s, Group 2 – laser application for 30 s, Group 3 – laser application for 45 s, and Group 4 – laser application for 60 s. A scanning electron microscope was used to examine the cemental surface and energy?dispersive X?ray analysis software assesses the compositional changes of the teeth in each group. Results: This study reveals that on exposure of DL (810 nm) on the root surface when time of exposure increases, there were relative increases in surface irregularities and charring. There were significant changes in the chemical composition of the tooth surface.

Knowledge and attitude toward use of internet in smartphones for dental education

Introduction: Internet has become ubiquitous with the advent of smartphones. The dental fraternity keeps themselves updated and share knowledge through webinars, video conferences, research publications, etc. Hence, the internet serves as an imperative tool for dissemination of information. The usage of internet in dental education can be exploited to the fullest, especially due to the increased ownership rates of smartphones. Materials and Methods: A total of 490 students from four dental colleges in Tamil Nadu were asked to fill a close-ended questionnaire to assess the knowledge and attitude of dental students toward internet usage in smartphones. This study was conducted from November 2016 to January 2017. Results: The response rate was 100%. Almost all the students (98%) had knowledge on browsing. The percentage of internet use in smartphones were the highest (55.2%) followed by computers or laptops at home (26.5%). About 34.6% of students used internet in smartphones daily. More than half of the students (52.2%) used internet in smartphone at least 2–3 h a day. About one quarter (23.4%) of students used internet on a daily basis while 29.59% of students accessed the internet thrice a week for searching content related to dentistry. The preferred source for collecting dental-related information was through the internet (28.9%) and textbooks (28.5%). Conclusion: Dental students have considerable knowledge in using the internet for dental education and some of them utilize internet more frequently because of the possession of smartphones.

Knowledge and attitudes of pharmacists regarding oral health care and oral hygiene products in Chennai city.

OBJECTIVES: This study was done to find out the knowledge and attitudes of pharmacists regarding oral health care and oral hygiene products in Chennai city. MATERIALS AND METHODS: A cross-sectional survey among a sample of the pharmacists in Chennai city was done and data regarding their knowledge and attitudes towards oral health care and oral hygiene products were obtained using a closed-ended questionnaire. RESULTS: Among the 60 pharmacies approached, 50 pharmacists participated in the study and completed the questionnaire. Though 48% of the participants gave a positive answer when asked whether they had met the dentist practicing close to their pharmacies, the frequency with which they met the dentist ranged from once a week (24%) to once a month (28%). Most of the pharmacists stocked oral health-related products, which comprised 15-25% of their total stock. Of these products toothpaste was the most common (62%), followed by mouth rinses (12%). Toothache or painful teeth was the most common dental problem (78%) for which patients approached the pharmacists for advice. With regard to the advice given, 38.5% of the pharmacists asked the patient to consult a nearby dentist after dispensing medications, while 22.4% of the pharmacists dispensed antibiotics and painkillers without any referral. Seventy percent of the pharmacists expressed interest in giving oral health care advice to patients. However, many of them (38%) felt that lack of proper knowledge is a barrier to providing oral health care advice. CONCLUSION: It is clear from the present study that pharmacists are presently an underutilized resource, and there is a definitive need to improve their training and access to information on available dental services.