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Occupational hazards can be defined as a risk to a person usually arising out of employment. The practice of dentistry exposes dental professionals to a variety of work-related hazards. The source of these hazards is the work environment which can include physical, chemical, biological, mechanical, and social aspects. These hazards can pose significant risks to dental practitioners. The occupational hazards found among dentist and other clinical dental workers are similar worldwide and include a wide range of risks and sometimes even legal hazards

The cariostatic properties of sealants are attributed to the physical obstruction of the pits and fissures. This prevents the penetration of fermentable carbohydrates and so the remaining bacteria cannot produce acid in cariogenic concentrations. Dental sealants are cost effective treatment modalities when placed on teeth of children at high risk for dental caries. The fact that pits and fissure sealants are safe and effective should justify their routine use as a preventive measure.