Pengaruh paparan uap sulfur terhadap kejadian gingivitis Studi pada pekerja tambang belerang di gunung Welirang, Pasuruan, Jawa Timur (The Influence of Sulphuric Acid Exposure on The Incidence of Gingivitis Sulphuric Miners Study at Gunung Welirang, Pasur

Background: Periodontal disease could be trigerred by host, microbes and environment interaction. Chemical exposure such as sulphuric gas can affect oral environment, it has a great effect on gingivitis. One source of sulphur deposit is in sulphuric mining. Objectives: To analyze the difference of gingival condition between sulphuric miners that exposed to sulphuric gas directly and control that was not a sulphuric miners. Methods: This study was an observational study with case control design that carried out on September 2005 – March 2006. The case were 27 subjects who worked as sulphuric miners at Gunung Welirang, Pasuruan, East Java and controls were 27 subjects who lived around the sulphuric mining. Gingival Index data collected by direct examination of the subjects, classified according to Loe and Sillness, Gingival Index and oral hygiene as confounding factor classified according to Greene and Vermillion Simplified Oral Hygiene Index (OHI-S). The data analysis was conducted SPSS 13.0 for windows using Mann-Whitney and odds ratio with level of significancy 0.05. Result: Gingival Index that was measured from 27 subjects of sulphuric miners, 4 subjects (14,8%) suffered from mild gingivitis and 23 subjects (85,2%) with moderate and severe gingivitis. Whereas from 27 subjects control there were 20 subjects (74,1%) with mild gingivitis and 7 subjects (25,9%) with moderate and severe gingivitis. Mann-Whitney test showed that there was a significant difference between case and control group (