Management of Ectopic Maxillary Canine Flashcards
When does maxillary canine erupt and when can you palpate?
Palpate in buccal sulcus 9-10yrs
Erupt 11-12yrs
What is prevalence of ectopic canines?
1-3% - more displaced palatally than buccal
8% of these have bilateral ectopic canines
What are ectopic canines associated with?
Missing or diminutive lateral incisors
What is aetiology of ectopic canines?
Familial Long eruption path Guidance theory Crowding Narrow maxilla Lack resorption primary teeth Follicular disturbance
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How to clinically assess for ectopic canines?
Palpate - buccal and palatal (canine bulge)
Mobility of primary tooth (C)
Space
Angulation/ inclination of lateral
SPAM
How to radiographically assess canine?
Location of canine using parallax (OPT and USO)
Look at resorption of primary tooth
What is SLOB?
Rule - principle of parallax
Same Lingual Opposite Buccal
- If tooth move same direction as tooth - moves lingually (palatally displaced)
What possible complications can occur with ectopic canines?
- Root resorption
- Ankylosis
- Cysts
What options are available for C’s if permanent ectopic?
Leave or extract
Management - depend hx and full examination
How to manage ectopic canine with orthodontics?
Orthodontic alignment
- can be open or closed exposure
- Create space - encourage natural eruption non-surgically
When may transplant be used?
Ectopic canine too misaligned for ortho
Canine ankylosed
Pt not suitable for orthodontic
Poor prognosis primary Cs
How to tx displaced canine is palatally impacted?
- Leave in situ - monitor
- Extract
- Expose and algin
- Transplant
Difference between open and closed exposure?
Open - surgical exposure - palatal muscle removed (easier)
Closed - bonding gold chain
No different in periodontal or surgical outcomes
What to do if canine mildly displaced?
Open space to allow for natural eruption
When would you use transplantation as tx option?
Canine ankylosed/ pt not suitable ortho/ poor prognosis primary canines
