TREATMENT EFFECTS OF R-APPLIANCE IN VERTICAL GROWING PATIENTS-CASE SERIES

The purpose of this study was to evaluate the effects of a functional appliance (the R-appliance) on Class II division I vertical growth pattern patients with mandibular deficiency. Twenty patients (13 girls and 7 boys) with a mean age of 10.6 (SD 0.8) years were treated with R-appliance for 16 (SD 0.4) months. All patients had Class II division 1 malocclusions due to mandibular deficiency and were vertical growers. Lateral cephalograms obtained at the beginning (T1) and at the end (T2) of the study were analyzed. Paired t-tests showed that SNB significantly increased from 72.8° (SD 2.2°) to 76° (SD 1.8°) (P<0.001) after treatment. The incisor mandibular plane angle (IMPA) significantly decreased and Jarabak index increased for 1.7% (SD 2.5%) (P<0.007). R-appliance was successful in moving the mandible forward in vertical growth pattern patients without proclination of the lower incisors.

Keywords: Functional Appliance, Class II Division 1, mandibular deficiency, R-appliance, vertical growth pattern

Authors: Abdolreza Jamilian, Rahman Showkatbakhsh, Minoo Alipanahi, Letizia Perillo
DOI: https://doi.org/10.25241/stomaeduj.2014.1(2).art.4

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STOMATOLOGY EDU JOURNAL (Stoma Edu J) is a new international dental journal whose main purpose is to inform researchers, educators, graduates, postgraduates and practitioners about the latest trends in the field, which followed, would bring immediate and lasting benefits to the patients; and about opinions of the most authorized specialists on what is best in current practice, for the good of both, patient and dentist.
STOMATOLOGY EDU JOURNAL (Stoma Edu J) is a peer-reviewed, open access international dental journal to be database indexed, meant to contribute to the development and completion of the medical training of practitioners as Dr. Greene Vardiman Black stated: “the professional man has no right to be other than a continual student”.
Open access journal, means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author.