Korean J Orthod.  1993 Dec;23(4):493-501.

Impacts of radicular development of lower third molars on its impaction

Affiliations
  • 1Department of Orthodontics, College of Dentistry, Kyung Hee University, Korea.

Abstract

It is the aim of this study to determine the impacts of radicular development of lower third molars on its eruption/impaction and to grope the prediction for eruption and/or impaction in advance. Three hundred and thirty cases of orthopantomogram were employed and classified as mesial root-dominant group, distal root-dominant group and identical group according to the radicular development of lower third molars. This presentation has carried out the incipient mesial inclination, radicular development, impaction/eruption rate and changes of mesial inclination of the very teeth. Consequently the following summary and conclusions were drawn; Radicular development dominated mesial root than the distal and dominant mesial root invited higher potentialities for normal eruption. The mesial or horizontal impactions were detected on the distal root-dominant group. This analysis has been suggested the potential eruption/impaction of lower third molars were dependent upon the radicular development and the incipient mesial inclination.

Keyword

radicular development; lower third molar; Impaction; eruption

MeSH Terms

Molar, Third*
Tooth
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