
CLASSIFICATION:
1. Based on type of tissue causing Ankylosis:


2. Based on the Side Involved :
- Unilateral Ankylosis

- Bilateral Ankylosis

3. Based on Severity of Ankylosis:
- Partial
- Complete
4. Based on Etiology of Trismus:
- Pseudo Ankylosis
- True Ankylosis
SAWHNEY’S CLASSIFICATION:

CLINICAL FEATURES:


INVESTIGATIONS:
1. Radiographs:
– OPG

-PA VIEW:

– Lateral Oblique View of Mandible:
Ankylotic mass can seen in the Anteroposterior direction.
2. Lateral Cephalogram:

3. CT Scan:
Helpful as it gives an accurate picture of proximity of ankylotic mass to important structure,that cannot be seen in a radiograph.

RADIOGRAPHIC FEATURES:
- Decreased ramus height on the affected site.
- Lack of joint space.
- Normal joint space obliteration by bone/fibrous growth.
- Elongation of coronoid process.
- Deep antigonial notch.
REFERENCES:
- Textbook of Oral & Maxillofacial Surgery, Chitra Chakravarthy (2nd Edition).
- DentalHypothesis.com
- Europe PMC
- PocketDentistry.com
- SciELO.com