Article Type
Original Article
Section/Category
Restorative Dentistry
Abstract
Objectives: To evaluate the dentoalveolar and skeletal changes of anterior open bite (AOB) treatment using extrusion arch in the mixed dentition.
Materials and methods: The study included 12 patients (7 females and 5 males) in the mixed dentition stage with an age range from 8 to 11 years with dentoalveolar anterior open bite ≤ 0 mm with normal facial pattern SN-GoGn (31.54°) and insufficient incisor display. After leveling & alignment for the upper incisors, a sectional heavy wire of 0.017 x 0.025'' stainless steel was kept in the upper incisors' brackets. The extrusion arch was placed as an auxiliary arch made of 0.017 x 0.025'' TMA wire till the correction of AOB. Lateral cephalograms were recorded before (T0) and after the AOB treatment (T1). The paired sample t-test was used to investigate differences between T0 and T1. The P value was significant at P ≤ 0.05.
Results: Extrusion arch has closed the open bite in all patients. A significant increase in the overbite (+3.73mm), a significant decrease in the overjet (-1.50 mm), a significant retroclination of the upper incisors (-9.58°), and a significant mesial inclination of the upper molar (+1.44°) have been noticed but there were no skeletal changes.
Conclusions: Extrusion arch is efficient in dentoalveolar AOB treatment. It closes the bite mainly through extrusion and retroclination of upper incisors.
Keywords
Open bite, extrusion arch, mixed dentition.
How to Cite This Article
Abdelmonem M , Albelasy N , Abdelnaby Y , Fouda M .
Evaluation of extrusion arch in management of anterior open bite in mixed dentition patients.
Mans J Dent.
2023;
10(4):
347-352.
Available at:
https://doi.org/10.61793/2812-5479.1108
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
