A 5-year-old requires extraction of the mandibular right second primary molar (8.5). The first permanent molar (4.6) has not yet erupted. What is the most appropriate space maintainer?
- Correct answer
Distal shoe appliance
-
Band and loop on 8.4
-
Lower lingual holding arch
-
No space maintainer is needed
This question is one of 15 in AFK practice: Orthodontics, pediatric and geriatric dentistry. Test yourself on all of them.
Practice quiz FlashcardsExplanations
A distal shoe guides the unerupted first permanent molar into position when the primary second molar is lost before the permanent molar erupts. A band and loop cannot guide an unerupted molar, and a lingual arch requires erupted permanent molars as abutments.
Source: McDonald and Avery's Dentistry for the Child and Adolescent — oneguy
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