Accession Number : AD1036797


Title :   Post-Retention Changes in Class II Correction With the Forsus (trademark) Appliance


Descriptive Note : Technical Report


Corporate Author : Uniformed Services University of the Health Sciences Bethesda United States


Personal Author(s) : Kim,Min K


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1036797.pdf


Report Date : 01 Jun 2015


Pagination or Media Count : 74


Abstract : The goal of this retrospective, descriptive study was to evaluate post-treatment changes of non-extraction treatment of class II correction using the Forsus (trademark) appliance. Methods: 40 Class II patients (25 males, 15 females) consecutively treated with the Forsus (trademark) appliance had cephalometric radiographs taken before treatment, at the end of comprehensive fixed and Forsus (trademark) treatment, and 1-4.5 years out of retention. Each radiograph was digitally traced by one examiner and intrarater reliability was measured. 29 cephalometric variables (angular and linear) were analyzed. At debond to post-retention, SNA and SNB increased 0.9(plus-minus)1.9 degrees and 1.0(plus-minus)1.3 degrees respectively, IMPA increased 1.6(plus-minus)4.0 degrees while overjet and overbite decreased 0.8(plus-minus)0.7mm and 0.9(plus-minus)1.0mm respectively. Conclusion: The null hypothesis was rejected. The increases seen in SNA and SNB during the post-retention period were most likely due to continued normal growth.


Descriptors :   teeth , orthodontics , jaw , therapeutics


Subject Categories : Medicine and Medical Research


Distribution Statement : APPROVED FOR PUBLIC RELEASE