Pediatric Dentistry · single question
A band and loop space maintainer is:
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Correct answer: C. Fixed and unilateral
- A. Fixed bilateral appliances (e.g., lower lingual holding arch) maintain space bilaterally — band and loop is unilateral.
- B. Removable bilateral appliances (like Nance or transpalatal arches) serve different purposes — the band and loop is specifically FIXED and UNILATERAL.
- C. A band and loop space maintainer is FIXED (cemented onto an abutment tooth — the band) and UNILATERAL (maintains space on ONE side of the arch). It is used when a single primary molar is prematurely lost and there is a primary canine or second molar mesial to the space on the same side. The loop extends from the band toward the adjacent tooth to prevent space closure.
- D. The band and loop is FIXED (cemented), not removable.
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