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Anatomical features of a permanent mandibular canine/cuspid.

Published in: Health & Medicine
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  1. 1. PERMANENT MANDIBULAR CANINE Dr. Ramil B. Simsuangco Oral Anatomy Professor College of Dentistry Manila Central University
  2. 2. Mandibular canine Crown is narrower than Maxillary canine Variation: Bifurcated roots
  3. 3. Labial Aspect  Crown outline is trapezoidal  Mesiodistal dimensions less than maxillary  Crowns appears longer than maxillary, higher contact areas  Contact Areas:  Mesial – incisal 3rd, just below the incisal angle or near the angle  Distal – near junction of middle and incisal 3rd
  4. 4. Labial Aspect continued....  Mesial crown outline nearly straight  Cusp angle is in line with the center of the root; mesial cusp ridge is shorter  Crown slightly bent distally  Root is shorter by 1 or 2 mm than maxillary, apex more sharply pointed
  5. 5. Lingual Aspect  Crown outline is trapezoidal  Flatter lingual surface, cingulum is smooth and poorly developed, marginal ridges are less distinct.  Lingual ridge raised at the incisal 3rd only  Root appears narrower than labial aspect
  6. 6. Mesial Aspect  Crown outline is triangular  Less pronounced cingulum  Incisal portion is thinner labiolingually, thus cusp appears more pointed, cusp ridges more slender  Tip of cusp more nearly centered over root  Developmental depressions are more pronounced and sometime quite deep
  7. 7. Distal aspect  Same as mesial aspect, except:  Less curvature of CEJ  Less pronounced cingulum  Less depressions on the root surface
  8. 8. Incisal Aspect  Mesiodistal diameter less than labiolingual  Cusp tip and mesial cusp ridge more likely to be inclined in a lingual direction