Lingual Arch Indication — NDEB AFK MCQ

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EasyPaediatric DentistryLingual Arch IndicationNDEB AFK

Which type of space maintainer is indicated for bilateral premature loss of mandibular primary first molars in a 5-year-old?

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Correct answer: A — Lingual arch

A lingual arch is a bilateral fixed space maintainer indicated when primary molars are lost bilaterally in the mandible. It consists of a passive stainless-steel wire adapted to the lingual surfaces of the mandibular teeth, soldered to bands on the mandibular first permanent molars. It prevents mesial drift of the permanent molars and maintains arch perimeter. A Nance holding arch serves a similar function in the maxilla (with an acrylic button on the palate for anchorage). Band and loop is for unilateral space maintenance.

Reference: Dean – McDonald and Avery's Dentistry for the Child and Adolescent, 11th ed., 2021