Which method can help prevent relapse in cases of rotated teeth?

Which method can help prevent relapse in cases of rotated teeth?

• A. Supracrestal circumferential fibrotomy
• B. Frenectomy
• C. Maintaining the integrity of the arch
• D. Tooth extraction included

Answer: (A)

Relapse of rotated teeth is mainly driven by the elastic memory of the surrounding periodontal fibers; these fibers tug the tooth back toward its original orientation even after derotation. Supracrestal circumferential fibrotomy interrupts that pull by surgically severing the gingival and periodontal fibers around the tooth in a circumferential pattern just above the crest. By cutting these fibers, the tooth loses the tangential memory that would drive rotation relapse, allowing the new position to stabilize during the retention period. Frenectomy targets the frenum and doesn’t address the circular bundle of fibers that contribute to rotational relapse. Keeping the arch intact helps overall stability, but it doesn’t specifically eliminate the relapse forces acting on a rotated tooth. Extraction is not a relapse-prevention technique and can complicate occlusion and alignment in ways that don’t directly reduce rotational relapse.

Relapse of rotated teeth is mainly driven by the elastic memory of the surrounding periodontal fibers; these fibers tug the tooth back toward its original orientation even after derotation. Supracrestal circumferential fibrotomy interrupts that pull by surgically severing the gingival and periodontal fibers around the tooth in a circumferential pattern just above the crest. By cutting these fibers, the tooth loses the tangential memory that would drive rotation relapse, allowing the new position to stabilize during the retention period.

Frenectomy targets the frenum and doesn’t address the circular bundle of fibers that contribute to rotational relapse. Keeping the arch intact helps overall stability, but it doesn’t specifically eliminate the relapse forces acting on a rotated tooth. Extraction is not a relapse-prevention technique and can complicate occlusion and alignment in ways that don’t directly reduce rotational relapse.