Prevalence of hepatitis B vaccination among oral health care personnel in Mysore city, India.

BACKGROUND: The transmission of blood borne virus in health care workers is a potential occupational hazard to patients as well as to the Oral Health Care Personnel (OHCP). Hepatitis B remains a serious threat to dental team. PATIENTS AND METHODS: To assess the vaccination status and post vaccination antibody status of oral health care personnel against Hepatitis B Virus (HBV) infection. Descriptive Cross-sectional questionnaire study was conducted among the oral health care personnel of Mysore city. RESULTS: Out of 300 oral health care personnel 256 (85.4%) were vaccinated for HBV infection and 44 (14.6%) had not taken vaccination. Highest frequency of vaccination was seen among dentists and least amongst dental lab technicians and other workers. This difference was highly significant among the different occupation groups (p= 0.001). CONCLUSION: Majority of the OHCP of Mysore city have been vaccinated. Among them, dentists formed the majority group of vaccinated. But there was ignorance and less awareness regarding Hepatitis B vaccination among dental lab technicians and other workers like dental assistants and cleaning staff. Awareness amongst OHCPS against Hepatitis B vaccination has increased significantly over the years, but there are few who do not intend to get vaccinated.

Infected dentigerous cyst of maxillary sinus arising from an ectopic third molar.

A dentigerous cyst or follicular cyst is a form of odontogenic cyst. It is believed that it forms during the development of the tooth and is associated with pressure exerted by the crown of an unerupted (or partially erupted) tooth on the fluid within the follicular space. Typically, dentigerous cysts are painless and discovered during routine radiographic examination. However, they may be large and result in a palpable mass. Additionally, as they grow they displace adjacent teeth. They almost exclusively occur in permanent dentition. The cyst is lined by stratified squamous non-keratinizing epithelium. About 70% of dentigerous cysts occur in the mandible and 30% in the maxilla. Dentigerous cysts associated with ectopic teeth within the maxillary sinus are very rare. We report radiologic and pathologic features in a rare case of infected dentigerous cyst of maxillary sinus arising from an ectopic third molar in a 21-year-old female patient.