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Quintessence Publishing: Journals: QI
Quintessence International

Edited by Eli Eliav

ISSN 0033-6572 (print) • ISSN 1936-7163 (online)

Publication:
October 1991
Volume 22 , Issue 10

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Secondary retention as a possible cause of impaction of permanent molars in the same dentition: a report of three cases

Raghoebar/Vissink/Boering

Pages: 807-810

Three cases of secondary retention of the first permanent molar and impaction of the adjacent second molar are reported. The clinical, radiographic, and histologic characteristics are described. In all three cases, the retained molars were in severe infra-occlusion and they may have represented a physical barrier for the impacted second molar. Early recognition of secondary retention is of great importance, because treatment of this disorder in children and adolescents is relatively simple. If secondary retention of permanent molars is not recognized before adulthood, severe malocclusion may develop, and removal of the afffected molar will be more difficult.

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