This document provides information about the permanent mandibular canine tooth, including its chronology, morphology, clinical considerations, and differences from the upper canine. Specifically, it discusses that the permanent mandibular canine:
- Begins calcifying around 4-5 months, has its crown completed by 6-7 years, erupts around 9-10 years, and finishes root development by 12-14 years.
- Has the longest root of any tooth, making it the most stable, and helps support the incisors and premolars.
- Its morphology on the labial, lingual, mesial, and distal aspects is described in detail.
- Clinical considerations for the
2. 1. The chronology of the tooth.
2. The morphology of the tooth.
3. Its clinical consideration.
4. Points of difference with the upper canine.
At the end of this lecture you must
know:
3. General characteristics of the
permanent canines
•All canines are the “Cornerstone” of the mouth
•Extra bulk of bone on the labial portion of root
called Canine eminence which help to support
facial muscles
•Longest root of any teeth making the canines the
most stable teeth
•In function, support the incisors and the premolars
(makes for a smooth transition)
•Longest tooth cervicoinsically
4. Chronology
• 1st. Evidence of calcification:
• Crown completed:
• Eruption:
• Root completion:
4 -5 monthes
6 -7 years.
9 – 10 years.
12 – 14 years.
5. Morphology
Labial Aspect:( Facial Aspect )
I ) Crown:
1. geometric outline:
2. surface outlines:
- mesial outline: ( including contact area )
- Distal outline: ( including contact area )
- cervical outline:
- incisal outline: ( including cusp tip )
3. surface describtion:
II) Root:
1. Mesial outline:
2. Distal outline:
3. Apex:
4. surface describtion:
⅓
⅔
⅓
⅓
⅓
6. Morphology
Lingual Aspect:
I ) Crown:
1. geometric outline:
2. surface outlines:
- mesial outline: ( including contact area )
- Distal outline: ( including contact area )
- cervical outline:
- incisal outline: ( including cusp tip )
3. surface describtion:
II) Root:
1. Mesial outline:
2. Distal outline:
3. Apex:
4. surface describtion:
14. Shape
On occasion, the root is bifurcated near its tip.
The double root may, or may not be
accompanied by deep depressions in the root.
Size
On occasion, the root is unusually long or unusually short.