Question 8 · LDEK · Fixed appliances
Indicate the true statement concerning orthodontic brackets:
- A. slot width for the archwire is 0.028' and slot depth 0.022'.
- B. slot width for the archwire is 0.028'and slot depth 0.018' or 0.022'.
- C. slot for the archwire is wide in the transversal dimension and its width is 0.018' or 0.022' whereas the depth is 0.028'.
- D. slot for the archwire is narrow and its width is 0.018' whereas the depth is 0.022'.
- E. every bracket is of different width and depth depending on an individual tooth.
Hint
Bracket systems are named after the occluso-gingival slot dimension; the labio-lingual depth is a different, larger value.
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Orthodontics
- Phase 2 of orthodontic treatment include:
- The optimal strength for inclining larger teeth is:
- Ectopia is defined as:
- The description ”lip and palate total cleft (until the incisive foramen) bilateral” applies to the classification:
- The stage of bone remodeling, in which the elimination of vitreous masses and the resorption of the alveolar bone in the compression zone occur, is…
- Indicate the true statements concerning Andrew’s keys of normal occlusion: