Infra-Zygomatic Mini Screws Compared to High Pull Headgear for Distalization And Intrusion of Maxillary Molars in Growing Patients with Class II Malocclusion: A Randomized Clinical Trial

Ahmed K. Afify, Amr E. El-Dakroury, Sherif A. El-Kordy and Mostafa M. El-Dawlatly
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Ahmed K. Afify: Cairo University, Egypt
Amr E. El-Dakroury: Cairo University, Egypt
Sherif A. El-Kordy: Cairo University, Egypt
Mostafa M. El-Dawlatly: Cairo University, Egypt

European Journal of Dental and Oral Health, 2021, vol. 2, issue 1, 14-19

Abstract: Objective: The aim of the present randomized clinical study was to evaluate the distalization and intrusion effect of an Infra-zygomatic mini-screws supported appliance and compare it with high pull headgear appliance in treatment of growing patients with class II malocclusion. Methodology: 22 growing boys aged between (10 to 12 years) with class II div 1 malocclusion randomly divided to 2 equal groups. The first group treated with high pull headgear with acrylic splint and the second one treated with an Infra-zygomatic mini-screws supported appliance. The treatment duration was 8 months for both groups. Lateral cephalometric radiographs were taken before and after the treatment for each patient to be analyzed. Results: The maxillary first molar distalization was 2.58±2.31 mm in head gear group and 1.53±2.83 mm in mini-screws group. There was no significant maxillary first molar intrusion in both groups. There were no significant differences between the two groups. Conclusions: the mini-screws supported appliance can be used as the fixed replacement of the removable high pull headgear appliance with no need for patient cooperation.

Keywords: class II; distalization; headgear; infra-zygomatic; malocclusion; mini-screws (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:epw:ejdent:v:2:y:2021:i:1:id:13040

DOI: 10.24018/ejdent.2021.2.1.40

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