Maxillary molar intrusion using modified vertical holding appliance versus miniscrew-supported appliance in growing children with skeletal open bite: a retrospective study
Aboulfotouh, M., Aly, E., El Feky, H. (2022). Maxillary molar intrusion using modified vertical holding appliance versus miniscrew-supported appliance in growing children with skeletal open bite: a retrospective study. EKB Journal Management System, 68(3), 1999-2007. doi: 10.21608/edj.2022.110796.1905
Mai Aboulfotouh; eman Aly; Hanem El Feky. "Maxillary molar intrusion using modified vertical holding appliance versus miniscrew-supported appliance in growing children with skeletal open bite: a retrospective study". EKB Journal Management System, 68, 3, 2022, 1999-2007. doi: 10.21608/edj.2022.110796.1905
Aboulfotouh, M., Aly, E., El Feky, H. (2022). 'Maxillary molar intrusion using modified vertical holding appliance versus miniscrew-supported appliance in growing children with skeletal open bite: a retrospective study', EKB Journal Management System, 68(3), pp. 1999-2007. doi: 10.21608/edj.2022.110796.1905
Aboulfotouh, M., Aly, E., El Feky, H. Maxillary molar intrusion using modified vertical holding appliance versus miniscrew-supported appliance in growing children with skeletal open bite: a retrospective study. EKB Journal Management System, 2022; 68(3): 1999-2007. doi: 10.21608/edj.2022.110796.1905

Maxillary molar intrusion using modified vertical holding appliance versus miniscrew-supported appliance in growing children with skeletal open bite: a retrospective study

Egyptian Dental Journal
Article 1, Volume 68, Issue 3 - Serial Number 1, July 2022, Page 1999-2007  XML PDF (1.35 MB)
Document Type: Original Article
DOI: 10.21608/edj.2022.110796.1905
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Authors
Mai Aboulfotouh email orcid 1; eman Alyorcid 2; Hanem El Fekyorcid 3
1Associate Professor, Department of Orthodontics, Faculty of Dentistry, Cairo University.
2Researcher, Orthodontic and Pediatric Dentistry Department, National Research Institute.
3Associate Professor, Orthodontic Department, Faculty of Dentistry, Fayoum University.
Abstract
Introduction: Skeletal open bite is a condition characteristic of and resulting from backward-rotating mandibular growth patterns. The molars over erupt, causing further rotation of the mandible away from the maxilla and swinging of the chin downward and backwards. Many appliances for molar intrusion have been proposed in the literature including vertical holding appliances and miniscrew- supported intrusion appliances.
Aim: to compare the amount of maxillary molar intrusion and mandibular plane autorotation induced after using a modified vertical holding appliance(MVHA) versus a miniscrew-supported appliance in a group of children with skeletal open bite.
Materials and Methods: The CBCTs of 20 growing female patients with skeletal open bites were collected and analyzed. Half of the patients were treated with modified vertical holding appliance and the other half received a miniscrew-supported appliance (MSA) for maxillary molar intrusion.
Results: significant maxillary molar intrusion was achieved in the MVHA group (1.2mm) as well as in the MSA group (1.8mm). Areduction in the mandibular plane inclination was acheived in both groups.(MVHA 2.5 degrees - MSA 2.8 degrees)
Conclusion:Both groups were equally effeective in inducing skeletal open bite closure through comparable amounts of maxillary molar intrusion.
Keywords
intrusion; skeletal open bite; miniscrew
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