Evaluation of Dentoskeletal and Pharyngeal Airway Changes after Treatment with Twin Block and Monoblock Appliance in Growing Patients

Authors

Esra Genc, Department of Orthodontics, Faculty of Dentistry, Istanbul Aydın University, Istanbul, TurkeyFollow
Ahmet Karaman, Department of Orthodontics, Faculty of Dentistry, Istanbul Aydın University, Istanbul, TurkeyFollow
Gülşah Püskül, Department of Orthodontics, Faculty of Dentistry, Istanbul Aydın University, Istanbul, Turkey.Follow

Abstract

Objective: To compare of pharyngeal airway dimensions and dentoskeletal changes after treatment with twin block (TWB) and monoblock (MB) appliance in growing patients. Methods: The sample was comprised of a total of 72 patients at the ages of 10 to 13. The TWB group consisted of 36 patients (22 females, 14 males, mean age: 11.9±1.5) and MB group consisted of 36 patients (18 females, 18 males, mean age: 11.8±1.2). The linear and angular measurements were evaluated on lateral cephalometric radiographs at beginning (T0) and end of treatment (T1). Results: The amounts of increase in the inferior airway space, L1xNB, IMPA and FMA measurements from T0 to T1 in the TWB group were significantly higher (p < 0.05).In the TWB group, the amounts of the increase in the soft palate thickness, distance between hyoid and C3, Co-A and Co-Gn measurements from T0 to T1 in the female patients were significantly higher (p < 0.05).In the MB group, the amounts of increase in the Upper adenoid thickness and Vertical airway length measurements from T0 to T1 in the female patients were significantly higher (p < 0.05). Conclusion: Both the MB and TWB appliances increase the pharyngeal airway dimensions, and the lower airway is most affected by the appliance type.

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Recommended Citation

Genc, E., Karaman, A., & Püskül, G. Evaluation of Dentoskeletal and Pharyngeal Airway Changes after Treatment with Twin Block and Monoblock Appliance in Growing Patients. J Dent Indones. 2022;29(3): 211-222