Primordial odontogenic tumor with prominent calcifications: A rare case report.

Primordial odontogenic tumor (POT) is a rare odontogenic tumor. It is a new entity in the latest edition of the World Health Organization classification in 2017. In the English-language literature, only 14 cases have been documented.

4% lidocaine versus 4% articaine for inferior alveolar nerve block in impacted lower third molar surgery.

Background: No study has compared lidocaine with articaine, each at a concentration of 4% and combined with epinephrine. The purpose of this study was to compare the effectiveness of 4% lidocaine with that of 4% articaine, with a concentration of 1:100,000 epinephrine added to each, in an inferior alveolar nerve block for surgery on impacted lower third molars.

Method: This study was conducted at the Faculty of Dentistry, Mahidol University in Bangkok, Thailand.