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Evaluation of Lower Anterior Facial Height Changes in Orthodontically Treated Subjects
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| Author:
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RESHMA MOHAN, RAVINDRA KUMAR JAIN
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| Abstract:
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The aim of the study is to evaluate the Lower Anterior Facial Height[LAFH] changes after orthodontic treatment with extraction protocol and compared with subjects treated with non extraction protocol. This was a retrospective study done with case records of 65 subjects who reported for orthodontic treatment. The sample was divided into two groups. Group 1 had 35 subjects treated with extraction protocol and Group 2 had 30 subjects treated with non-extraction protocol. Their pre- and post- treatment cephalograms were collected and the Linear measurements from points ANS to Me [LAFH] was recorded. The linear measurements were done using FACAD software. All data was tabulated and subjected to Statistical tests using SPSS version 23.0. Descriptive statistics and paired t- test was performed to compare the pre and post treatment changes following orthodontic treatment . Independent t-test was performed to compare the pre-treatment LAFH means and post-treatment LAFH means in both groups. In results , it was observed that there was a decrease of 2.75 + 2.29 mm in lower anterior facial height in extraction cases whereas there was an increase of 1.027+ 0.993 and this was found to be statistically significant (p value - 0.000). From this study it was observed that the lower anterior facial height reduces about 2-3 mm in most cases after extraction and increases in most non-extraction cases. The treatment mechanics must be tailored keeping in mind the effects of premolar extraction on lower anterior facial height.
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| Keyword:
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Evaluation, Lower, Orthodontically
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| EOI:
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-
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| DOI:
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https://doi.org/10.31838/ijpr/2020.12.02.330
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| Download:
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