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182352

Maxillary Skeletal Changes Concomitant With Different Levels of Force Application for Maxillary Protraction in Growing Class 3 Patients

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

Orthodontics

Abstract

Objective: to evaluate maxillary skeletal changes concomitant with different three levels of force application for maxillary protraction in growing orthodontiv patients with skeletal class 3 malocclusion. subjets and Methods: The current study was conducted on 30 class 3 patients (19 boys and 11 girls) with maxillary difficieny. The age of the recrutted sample ranged from 7-10 years. The patients were randomely allocated into three equal groups. The point of protraction force application varied among the three groups; groupA at the occlusal plane, group B 20 mm above the occlusal plane and group C at the infraorbital foramen. The duration of the treatment laste for 8 months, the patients were instructed to werethe appliance 16 hour/day with the applied 550gs protraction force. The analysis of the outcomes of this study was doneusing CBCT images were taken before and after maxillary protraction. Results: The average amount of maxillary advancement in the three groups 2.5mm with non-significant difference. The pattern of rotation accompanied with maxillary advancement as demonstrated by PP-TVP; in group A it was counterclockwise rotation (2.8 ̊ )in group B it was minimum (0.35 ̊) and in group C it was clockwise rotation (-1.8 ̊). Conclusions: Varying the point of force application was an efficient tool in order to control the rotation of the maxilla during protraction facemask therapy without affecting the amount of maxillary advancement.

DOI

10.21608/ajdsm.2020.42263.1113

Keywords

Protraction facemask, Multilevels protraction system, Class 3 malocclusion

Authors

First Name

Khaled

Last Name

Taha

MiddleName

-

Affiliation

Al-Azhar University

Email

kh.taha@azhar.edu.eg

City

Nasr City

Orcid

-

Volume

24

Article Issue

3

Related Issue

26275

Issue Date

2021-07-01

Receive Date

2020-09-08

Publish Date

2021-07-01

Page Start

317

Page End

324

Print ISSN

1110-6751

Online ISSN

2682-3314

Link

https://ajdsm.journals.ekb.eg/article_182352.html

Detail API

https://ajdsm.journals.ekb.eg/service?article_code=182352

Order

1

Type

Original Article

Type Code

848

Publication Type

Journal

Publication Title

Al-Azhar Journal of Dental Science

Publication Link

https://ajdsm.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023