Korean J Orthod.
1986 Sep;16(2):115-122.
A clinical study of relapse following orthodontic treatment
- Affiliations
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- 1Department of Dentistry, Graduate School, Chosun University, Korea.
Abstract
- This study was undertaken to determine the relapse amount in the various malocclusions and correlative coefficient with other factors. The sample were consisted of 60 orthodontic patients whose models were perfect before treatment, after treatment and after 6 months post treatment. For this study 8 liner lengths were measured in maxilla and mandible respectively. The results were as follows. 1 The change with treatment of maxillary dental arch length was most large m non extraction group of Angle's class II malocclusion. 2 The relapse compared with other treatment changes was most little in the arch perimeter. 3 The relapse was increased in proportion to the beginning age of the treatment m non extraction group. 4 The relapse of maxillary intermolar width was increased and those of overbite & molar relationship were decreased in proportion to the duration of active treatment. 5 The relapse of maxillary intercanine width was increased with a time goes after treatment.
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