1. Masangkay, Chrissie Mae
Canines
Javier, Timothy
Gacula, Jan Ikah
Masangkay, Chrissie Mae
Pastores, Reginal

2. “Cornerstones” of the dental arches.
“Canine guidance” Their shape & position contribute to the guidance of the teeth to the intercuspal position.
“Canine eminence” is the elevated bone ridge over the labial portion of the roots.
It provides the natural facial expression.
Shape & position of canines promotes self
cleanliness.

3. Function of canine Function of Canines Support
Canine eminence- gives labial
Cutting & tearing

4. MAXILLARY CANINE

5. CHRONOLOGY Appearance of dental organ 5 m.i.u.
Beginning of calcification 4-5 months
Completed crown 6-7 years
Eruption years
Completed root years

6. Outline Shape Crowns as wide as they are long. Constricted at cervix
Convex mesial and distal outlines
Distal contours more broadly rounded
Mesial contours somewhat angular

7. Cusp Ridge Outline Cusp very sharp (pointed)
2 cusp ridges meeting at an acute angle
Mesial cusp slopes longer and is flat to concave
Distal cusp shorter

8. Contact Areas
Distal contact areas rest against mesial surfaces of primary molars.
Mesial and distal contact areas near the center of crown cervicoincisally
Mesial contact more cervically located

9. Roots Longest of the primary teeth Blunt apex
Bulky in cervical and middle thirds.
Tapers in apical third bending labially.

10. Lingual Cingulum- bulky
Well-developed mesial and distal marginal ridges.
Lingual ridge distal to the middle of the crown.
Distal fossae narrower and deeper.
Mesial fossae broader and shallower

11. Proximal Cervical third thicker than on incisors.
Cusp tip labial to root axis.
Labial cervical ridges prominent.
Triangular outline
Greater faciolingual measurement than crown of an incisor
Height of contour of both facial and lingual in cervical third
Convex cingulum
Curvature of CEJ greater on mesial than distal

12. Incisal
Crown - contours are angular tapers toward cingulum, mesial half thicker faciolingually than the dustal half cingulum centered mesiodistally.
Marked convexity of cingulum
Mesial surface smoothly convex
Distal surface more acute

13. MANDIBULAR CANINE

14. CHRONOLOGY Appearance of dental organ 5 m.i.u.
Beginning of calcification 4-5 years
Completed crown 6-7 years
Eruption 9-10 years
Completed root years

15. Outline Shape Flat mesial crown outline.
Crowns longer incisocervically than wide mesiodistally.
1.3 mm narrower mesiodistally than maxillary canine.

16. Cusp Ridge Outline
Sharp cusp tips pointed like an arrow towards mesial
Short mesial cusp arm
Shorter mesial cusp slope.

17. Contact Areas Contact areas in incisal one third.
Distal contact is more cervical than mesial.

18. Roots More tapered and pointed
1.8mm shorter than maxillary canine roots.
Less labial root bend (apical third)

19. Lingual Cingulum distally located Lingual ridges barely discernible
Faint marginal ridges
Usually with a single concavity or fossa

20. Proximal
Cervical third of primary canines is much thicker than on incisors
Cusp tip often slightly lingual to root axis line.
Labial cervical ridges are prominent
Cusp tip toward mesial

21. Incisal View Crown – have a diamond shape
Nearly symmetrical except mesial position of cusp tips which appear to have slightly more bulk in distal half.
Cingulum centered or just distal to center.