Question 321 (part 2) · LDEK · Functional disorders of the masticatory system
In established unilateral dislocation of articular disc without blockage, you observe:
1) the range of abduction of 30-40mm;
2) the range of abduction of 40-50mm;
3) hard abduction limitation;
4) return crackling;
5) sinuous abduction track.
Correct answer is:
2) the range of abduction of 40-50mm;
3) hard abduction limitation;
4) return crackling;
5) sinuous abduction track.
Correct answer is:
- A. 1,3,4.
- B. 1,3,5.
- C. 1,4,5.
- D. 2,3,5.
- E. 2,4,5.
Hint
Without blockage the disc still reduces on opening, so think about what happens to mouth opening range, joint sounds and the opening path.
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