In a restaurant, a menu is a list of food and beverage offered to the customer. A menu may be Ã  la carte â which guests use to choose from a list of options â or table d'hÃ´te, in which case a pre-established sequence of courses is served.
A dental sinus is an abnormal channel that drains from a longstanding dental abscess associated with a necrotic or dead tooth. A dental sinus may drain to: 1  the inside of the mouth (an intraoral sinus), or,  the skin surface of the face or neck (an extraoral, orofacial sinus)
Back to TopCauses. A tooth abscess is a complication of tooth decay. It may also result from trauma to the tooth, such as when a tooth is broken or chipped. Openings in the tooth enamel allow bacteria to infect the center of the tooth (the pulp). Infection may spread out from the root of the tooth and to the bones supporting the tooth.