A photoelastic study of the effect of loops in arch wire and orthodontic elastics in relief of Curve of Spee.
- Author:
Byung Tae RHEE
1
Author Information
1. Department of Orthodontics, College of Dentistry, Pusan National University, Korea.
- Publication Type:Original Article
- Keywords:
photoelastic study;
curve of spee
- MeSH:
Bicuspid;
Molar;
Tooth
- From:Korean Journal of Orthodontics
1993;23(4):485-492
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Multiloop Edgewise Archwire(MEAW) is effective in relief the Curve of Spee in mandibular arch but up & down orthodontic elastics must be used with it. The purpose of this study was to analyse the effect of orthodontic elastics, like as up & down elastics, Class II elastics, and Class III elastics, and the effect of L loop in Multioop Edgewise Archwire. 1. Intrusive force of MEAW in anterior teeth was reduced and uprighting force in premolars was increased by up & down elastics. 2. Uprighting force was significantly increased with Class III elastics in multiple L loop arch wire. 3. The force of Class II elastics made molars tip mesially and Curve of Spee deep.
