Author:
Gupta Chanchal,Ramegowda Santosh,K. S Sowmya
Abstract
Objectives: To evaluate and compare the alterations taking place in the oro-pharyngeal airway space
with functional appliance between class I & treated class II division 1 subjects. The st Methods: udy
comprised of forty ve participants. Of these, thirty subjects were divided into two groups (Group 1 & 2) who had Angles Class II
Division I malocclusion. Subjects with Angles Class I malocclusion formed the control group (Group 3) with 15 subjects. Group 1
received standard twin block therapy and Group 2 received xed functional appliance. The control group received xed
mechanotherapy. A full skull CBCT scan was taken pre and post treatment in the two study groups and the control group to
check for changes that occurred in the oro-pharyngeal volume. The volume of the oro-pharyngeal airway space was analyzed
by student's t test and Tukey's post hoc tests using SPSS Version 22.0. (For Windows) Group 2 and group 3 exhibited a Results:
statistically signicant increase in the mean oropharyngeal space volume (p < 0.01) during the post treatment period when
compared to the pretreatment. volumes. Increased oro-pharyngeal space was seen in twin block therapy Conclusion: since it
brings about both skeletal and dento-alveolar changes while xed functional appliance showed comparatively less changes in
the oropharyngeal space.
Subject
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