Nomenclature and landmarks
Nomenclature and landmarks
Application of Nomenclature
Application of Nomenclature
(一) Median line (二) Long axis Right maxillary Left quadrant D Right mandibular Left mandibular Anterior teeth. shown white Posterior teeth. shown blue Figure 15-5 Oral cavity with the permanent teeth. The midline, quadrants, ar anterior and posterior teeth are identified
(一) Median line (二) Long axis
三) Axial surface (四) Contact area Lingual Buccal Lingua Distal Mesial An anterior and a posterior tooth. The height of contour for each surface (with contact areas highlighted) is shown
(三) Axial surface (四) Contact area
五) Line angle L AL ABIAL Mesiolabial Distolabial Distolingual Disto-occlusal Bucco-occlusal Linguoincisal Mesio-occlusal Figure 15-10 An anterior and a posterior tooth. The designation of line angles of the crown is shown
(五) Line angle
(六) Point angle A Distolinguo-occlusal Mesiolinguo-occlusal Distobucco-occlusal Mesiobucco-occlusal BUC LINGUAL Fi
(六) Point angle
(七) Height of contour Labial Buccal Lingual Distal Figure 15-9 An anterior and a posterior tooth. The height of contour for each surface (with contact areas highlighted) is shown
(七) Height of contour
八) Division into third Cervical Middle Incisal Occlusal Middle Cervical Apical Figure 15-12 An anterior and a posterior tooth. The designation of crown and root thirds is shown
(八）Division into third
二、 nomenclature of th e teeth surface Labial surface (二) Buccal surface (三) Lingual surface (四) Mesial surface (五) Distal surface (六) Occlusal (七) Incisal
二、nomenclature of the teeth surface （一）Labial surface （二）Buccal surface （三）Lingual surface （四) Mesial surface （五）Distal surface （六）Occlusal （七）Incisal
Labial D M Lingual Mesial Figure 16-13 Distal