An Illustrated Atlas of Tooth Carving and Wax-Up Techniques. Anil Bangalore Shivappa
Cervical Line
Junction formed by the union of crown and root (Figure 4.3g). It represents the junction where the portion of the tooth covered with enamel meets the portion covered by cementum [4]. Proximally it curves towards the incisal edge in anterior teeth and towards the occlusal surface in posterior teeth. In general, curvature of the cervical line is more on the mesial side compared to the distal and greatest on the anterior teeth, diminishing on posterior teeth [1, 2].
Root Trunk
Part of the root on the posterior teeth between the cervical line and furcal area. Also called a trunk base (Figure 4.3h) [1].
Figure 4.4 (a–h) Anatomical landmarks of human permanent dentition.
Root Furcation
It is the division of roots [1, 3].
Bifurcation
Seen on two‐rooted teeth (Figure 4.4a) [1, 3].
Trifurcation
Seen on three‐rooted teeth (Figure 4.4b) [1, 3].
Furcal Region or Interradicular Space
The space apical to root furcation and between the roots (Figure 4.4c) [1].
Root Apex
The tip of the root at its end (Figure 4.4d) [2, 4]
Developmental Groove
Shallow linear depression or fissure or furrow between the primary parts of the crown or root (Figure 4.4e) [2–4].
Central Groove
Groove located centrally on the occlusal surface, within the sulcus of the posterior teeth and running in a mesiodistal direction (Figure 4.4f) [1, 2].
Buccal Groove
Buccal extension from the central groove on the occlusal surface of the posterior teeth (Figure 4.4f) [1].
Lingual Grooves
Lingual extension from the central groove on the occlusal surface of the posterior teeth (Figure 4.4f) [1].
Supplemental Groove
Shallow linear depressions supplemental to a developmental groove (Figure 4.4f).
Line Angle
Angle formed by the union of two surfaces (Figure 4.4g) [1].
Point Angle
Angle formed by the union of three surfaces (Figure 4.4h) [1].
Crest of Contour
Also called crest of curvature, height of contour. It is the maximum height on a convex outline of the tooth structure [1].
References
1 1 Rickne, C.S. and Weiss, G. (2012). Woelfel's Dental Anatomy, 8e. Philadelphia: Lippincott Williams & Wilkins.
2 2 Stanley, J.N. and Major, M.A.C. (2010). Wheeler's Dental Anatomy and Occlusion, 9e. St. Louis, MO: Saunders Elsevier.
3 3 Hillson, S. (2012). Dental Anthropology. Cambridge University Press. Kindle Edition.
4 4 Edgar, H.J.H. (2017). Dental Morphology for Anthropology, (p. iii). Taylor and Francis. Kindle Edition.
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