![]() ![]() Inferior alveolar artery: arises from the maxillary artery then enters the mandibular foramen Middle superior alveolar artery: small branch of the infraorbital arteryĪnterior superior alveolar artery: branch of the infraorbital artery ![]() Posterior superior alveolar artery: branch of the maxillary artery in the pterygopalatine fossa Arterial supplyĪrterial supply to the teeth is derived from the maxillary artery, a branch of the external carotid artery, via the: This joint between a tooth and alveolar bone is a fibrous joint called a dentoalveolar syndesmosis. The periodontal ligament connects the tooth root to the underlying lamina dura, which itself is the cortical bone which lines the tooth socket. Pulp chamber and root canal: lie centrally within the tooth and contain neurovascular structuresĪpical foramen: lies at the apex of the tooth root Each tooth is mainly composed of dentin and is made up of several parts 1-3:Ĭrown: portion of the tooth projecting out of bone The tooth sits in alveolar processes of the upper jaw ( maxilla) or lower jaw ( mandible). The dental arch describes the crescentic formation of teeth on each jaw. There are normally a total of 32 permanent (secondary) teeth in adults, with 16 per jaw and eight in each quadrant, which consists of (distal to mesial) 3: They are then progressively replaced by permanent (secondary) teeth from the age of six with the final eruption of the third molar between 18-24 years 5. The deciduous (primary) teeth start erupting at six months (lower central incisor) and are completely erupted by around 3 years of age. There are twenty deciduous (primary) teeth in young children, with ten per jaw and five in each quadrant, which consist of (distal to mesial):Ĭentral incisors are the first to erupt, around 6 months of age ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |