Evaluation and quantification of airway changes in Class II division 1 patients undergoing myofunctional therapy using twin block appliance

Autor: Ishan Pradhan, SM Londhe, Vivek Kumar Thakur, Mohit Sharma, Amit Jain, Prasanna Kumar
Rok vydání: 2021
Předmět:
Zdroj: Med J Armed Forces India
ISSN: 0377-1237
DOI: 10.1016/j.mjafi.2020.01.007
Popis: Background The purpose of the present study was to determine the airway changes in skeletal class II division 1 malocclusion patients with mandibular retrognathism, treated with Twin-Block (TB) appliance. Methods Airway assessment was carried for twelve patients (mean age 11.7 ± 1.1 years) who underwent myofunctional therapy using TB appliance for correction of skeletal class II division 1 malocclusion with mandibular retrognathism. Acoustic pharyngometry (AP) was used to assess and quantify the comparative changes in the upper airway, pretreatment and posttreatment. Results Data acquired was subjected to appropriate statistical analysis. The paired ‘t’ test was used to compare pre-treatment (T0) and after the positive pterygoid response (T1). TB appliance increased mean minimum airway area by 0.28 ± 0.25 cm2 and mean airway by 0.47 ± 0.44 cm2 with 95% CI. Posttreatment minimum airway and mean area changes were found to be statistically significant (P-value Conclusion TB appliance therapy has a positive effect on upper airway and is beneficial for the treatment of sleep-related disorders associated with Class II division 1 malocclusion for achieving positive functional changes, esthetics, and healthier quality of life.
Databáze: OpenAIRE
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