Dental Terminology Anatomy Flashcards
Midline
location of contact between the mesial surfaces of the central incisors. The dental midline is the line between your two upper front teeth and your two lower front teeth
Incisal
The biting edge of an anterior tooth
Lingual
The surface that faces the tongue.
Mesial
The surface that is closest to the midline of the face.
Occlusal
The chewing surface of posterior teeth
Distal
The surface that is away from the midline of the face
Facial
The surface that faces the cheeks or lips. Can also use the terms
Labial
The surface towards the lips
Buccal
The surface towards the cheeks
Proximal
Tooth surfaces that are next to each other (i.e., distal of lateral incisor and mesial of canine).
Incisors
The four front teeth in both the upper and lower jaws are called incisors. Their primary function is to cut food. The two incisors on either side of the midline are known as central incisors. The two adjacent teeth to the central incisors are known as the lateral incisors. Incisors have a single root and a sharp incisal edge.
Canines
There are four canines in the oral cavity. Two in the maxillary arch and two in the mandibular area. They are behind and adjacent to the lateral incisors. Their main function is to tear food. They have a single, pointed cusp and a single root. They have the longest root of any tooth. They also serve to form the corners of the mouth.
Premolars (Bicuspids)
These teeth are located behind and adjacent to the canines and are designed to crush food. There are eight premolars in the oral cavity. There are two in each quadrant of the mouth. The one closest to the midline is the first premolar and the one farthest from the midline is the second premolar. These teeth can have 3-4 cusps. The maxillary first premolar has two roots, and the remaining premolars have a single root. There are no premolars in the primary dentition.
Molars
The most posterior teeth in the mouth are the molars. They have broader and flatter surfaces with 4-5 cusps. They are designed to grind food. Mandibular molars typically have 2 roots. Maxillary molars, which are located behind the second premolars, typically have 3 roots. There are 12 molars in the permanent dentition with three in each quadrant of the mouth. They are named starting with closest to the midline as first molars, second molars and third molars. Although, some people do not fully develop the third molars. Third molars are often referred to as wisdom teeth. The primary dentition only contains eight molars.
Soft Palate
Posterior portion of the palate. This is non-bony and is comprised of soft tissue