Odontomas are the most common odontogenic tumors of the oral cavity which are nonaggressive, hamartomatous in nature consisting of enamel, dentin and cementum. They are called as composite because they contain more than one type of tissue. They are generally asymptomatic, hence recognised on routine radiologic examination. The compound odontoma is composed of multiple small tooth like structures, whereas the complex odontoma consists of a conglomerate mass of enamel and dentine, which bears no anatomical similarity to the tooth. The eruption and infection of odontoma are uncommon, only few cases of erupted complex odontoma are reported in the literature. We report a case of silent erupting complex odontoma.

SUMMARY Primary syphilis of the palpebral conjunctiva of the lower eyelid is reported because it is rare, which makes its diagnosis difficult but important. Accepted for publication 2 March 1989 positive result at a titre of 1/16, and the T pallidum haemagglutination assay (TPHA) also gave a positive result. Gram's stain of the scrape material gave a negative result for Haemophilus ducreyi bacilli. Smear and culture studies for Neisseria gonorrhoeae, Trichomonas vaginalis, and Candida albicans gave negative results. His total blood count was 8.2 x 109/1, and the differential count was 70% polymorphs, 28% lymphocytes, and 2% eosinophils. The erythrocyte sedimentation rate was 4 mm in the first hour. A Mantoux test gave a negative result. Analysis of the cerebrospinal fluid and radiography of the chest and long bones showed no abnormalities. Histopathological examination of the ulcer showed perivascular infiltration with lymphocytes and plasma cells and a breach in the epithelium.The patient was treated with a single deep intramuscular injection of benzathine penicillin 2.4 MIU, and the lesion had healed completely within six days. Routine clinical and serological follow up studies undertaken during the following 10 months showed a Figure Primary syphilitic chancre oflower left palpebral conjunctiva.

The rapid tetanus antibody test in the emergency room could make tetanus prevention more accurate with improved technical feasibility. The test may eliminate unnecessary injecting of vaccine, reduce the cost and can be performed at the hospital setting.

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