Salivary and serum acetaldehyde levels in betel quid chewers, pan masala chewers with or without tobacco and tobacco smokers: A comparative study using head space gas chromatography.

Background: Acetaldehyde, a natural by-product of combustion and photo-oxidation, has been detected at low levels in cigarette smoke. Various literature studies have shown increased salivary acetaldehyde production among smokers and heavy drinkers.

Aim: The present investigation was performed to estimate the salivary and serum acetaldehyde levels in pan masala chewers (with or without tobacco), betel quid chewers and tobacco smokers.

Cemento-Ossifying Fibroma of Upper Lip in a Female Child.

Cemento-ossifying fibroma (COF) is a benign tumor classified under fibro-osseous lesions characterized by the proliferation of fibrous tissue associated with the presence of osteoid or cementicle-like masses. COF of bony origin is highly neoplastic in nature compared to their soft tissue counterparts which are relatively rare. The authors here present a case report of COF arising from the left upper lip in a 10-year-old female patient.