Pediatric Dentistry · single question

What is the primary purpose of placing a space maintainer following early loss of tooth #29?

  1. To restore masticatory function immediately
  2. To maintain space for the erupting permanent successor
  3. To prevent overeruption of opposing teeth
  4. To prevent TMJ dysfunction
Show answer and explanation

Correct answer: B. To maintain space for the erupting permanent successor

The primary purpose is to maintain space for the erupting permanent successor (second premolar) so it can erupt into proper position.
  • A. ❌ Space maintainers are passive appliances; they do not restore masticatory function.
  • B. ✅ CORRECT – Space maintainer preserves space so the permanent second premolar can erupt correctly.
  • C. ❌ While overeruption prevention is a benefit, the primary reason is preserving arch length for the successor.
  • D. ❌ TMJ dysfunction is not the primary concern in pediatric space maintenance.

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