IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-9-8-26528 Original Research Paper AN AUDIOMETRIC ANALYSIS OF HEARING THRESHOLD AMONG STUDENTS AND FACULTY IN A DENTAL TEACHING INSTITUTE: AN OBSERVATIONAL STUDY. DEEBA SADAF Dr. Dr. ANUROOPA P Dr. August 2020 9 8 01 02 ABSTRACT

Background: Dental professionals are exposed to high noise levels for extended periods while working in dental hospitals, clinics and laboratories. Although this doesn’t fall into the harmful category; repeated use of equipments/instruments emitting these decibel levels may cause hearing damage. Aims: The aim of our cross–sectional observational study was to assess if noise induced hearing loss (NIHL) was prevalent among dental students and faculty in our institute and investigate if any link exists between prolonged noise exposure and hearing loss. Materials and methods: The study participants were divided into four groups of 15 each. Groups 1 and 2 consisted of 1st year undergraduate and 3rd year postgraduate students respectively while Groups 3 and 4 comprised faculty and practitioners with an experience of 1–10 years and 11 years or more. All of them underwent audiometric analysis. Statistical analyses: SPSS software was used for analyses. One–way ANOVA test and Tukey’s post–hoc analysis were used to compare the mean PTA levels while Chi–Square test was used to evaluate the prevalence of NIHL between the study groups. Results: The signs of NIHL were highest in Group 4 (80%) followed by Group 3 (33.3%). Groups 1 and 2 exhibited normal hearing sensitivity. However, no predilection for any ear was observed with respect to hearing loss. Conclusion: The results demonstrate that NIHL is prevalent among dental professionals. The observed findings seem to suggest that there could exist a correlation between duration of noise exposure and development of NIHL. This study highlights the fact that NIHL is a real and grave health peril facing the dental fraternity.