Dentofacial effects of miniscrew-anchored maxillary protraction on prepubertal children with maxillary deficiency: a randomized controlled trial
Abstract Background The introduction of bone-anchored maxillary protraction eliminated the side effects of facemask in the early treatment of patients with maxillary retrusion. This study aimed to evaluate the effects of miniscrew-anchored maxillary protraction (MAMP) and compare them with the growt...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-06-01
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| Series: | Progress in Orthodontics |
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| Online Access: | https://doi.org/10.1186/s40510-023-00473-4 |
| _version_ | 1797801269857878016 |
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| author | Ahmed Mohamed Kamel Nour Eldin Tarraf Ahmed Maher Fouda Ahmad Mohammed Hafez Ahmed El-Bialy Benedict Wilmes |
| author_facet | Ahmed Mohamed Kamel Nour Eldin Tarraf Ahmed Maher Fouda Ahmad Mohammed Hafez Ahmed El-Bialy Benedict Wilmes |
| author_sort | Ahmed Mohamed Kamel |
| collection | DOAJ |
| description | Abstract Background The introduction of bone-anchored maxillary protraction eliminated the side effects of facemask in the early treatment of patients with maxillary retrusion. This study aimed to evaluate the effects of miniscrew-anchored maxillary protraction (MAMP) and compare them with the growth changes in an untreated control group in growing patients with Class III malocclusion. Methods Forty growing patients with Class III malocclusion and retrognathic maxilla were randomly allocated into two groups: treated and control groups. In the treated group, patients were treated with full-time intermaxillary Class III elastics (C3E) anchored by a hybrid hyrax (HH) in the maxilla and a bone-supported bar in the mandible. Protraction was stopped after obtaining a positive overjet. Cephalometric radiographs were acquired before and after the treatment. Data were statistically analyzed on an intention-to-treat basis. Intergroup comparisons were also made using analysis of covariance with the readings at T0 as a covariate. Results Forty patients agreed to participate, and 30 of them completed the study (treated group, n = 17; control group, n = 13). The average treatment duration was 11.9 months. MAMP resulted in a significant maxillary advancement (A-VR, 4.34 mm) with significant control over the mandibular growth. No significant increase in the mandibular plane angle was found in the treated group compared with the control group. The upper and lower incisors showed significant protrusion in the treated group. Conclusions Within the limitations of this study and high attrition rate, the MAMP protocol can effectively increase maxillary forward growth with good control over the growth of the mandible antero-posteriorly and vertically. |
| first_indexed | 2024-03-13T04:47:54Z |
| format | Article |
| id | doaj.art-d30b7e56c07f440d92d9e79892fec8aa |
| institution | Directory Open Access Journal |
| issn | 2196-1042 |
| language | English |
| last_indexed | 2024-03-13T04:47:54Z |
| publishDate | 2023-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Progress in Orthodontics |
| spelling | doaj.art-d30b7e56c07f440d92d9e79892fec8aa2023-06-18T11:26:09ZengSpringerOpenProgress in Orthodontics2196-10422023-06-0124111310.1186/s40510-023-00473-4Dentofacial effects of miniscrew-anchored maxillary protraction on prepubertal children with maxillary deficiency: a randomized controlled trialAhmed Mohamed Kamel0Nour Eldin Tarraf1Ahmed Maher Fouda2Ahmad Mohammed Hafez3Ahmed El-Bialy4Benedict Wilmes5Department of Orthodontics, Faculty of Dentistry, Mansoura UniversityDepartment of Orthodontics, Faculty of Medicine and Health, Discipline of Orthodontics and Paediatric Dentistry, Sydney Dental School, University of SydneyDepartment of Orthodontics, Faculty of Dentistry, Mansoura UniversityDepartment of Orthodontics, Faculty of Dentistry, Mansoura UniversityDepartment of Orthodontics, Faculty of Dentistry, Mansoura UniversityDepartment of Orthodontics, University of DüsseldorfAbstract Background The introduction of bone-anchored maxillary protraction eliminated the side effects of facemask in the early treatment of patients with maxillary retrusion. This study aimed to evaluate the effects of miniscrew-anchored maxillary protraction (MAMP) and compare them with the growth changes in an untreated control group in growing patients with Class III malocclusion. Methods Forty growing patients with Class III malocclusion and retrognathic maxilla were randomly allocated into two groups: treated and control groups. In the treated group, patients were treated with full-time intermaxillary Class III elastics (C3E) anchored by a hybrid hyrax (HH) in the maxilla and a bone-supported bar in the mandible. Protraction was stopped after obtaining a positive overjet. Cephalometric radiographs were acquired before and after the treatment. Data were statistically analyzed on an intention-to-treat basis. Intergroup comparisons were also made using analysis of covariance with the readings at T0 as a covariate. Results Forty patients agreed to participate, and 30 of them completed the study (treated group, n = 17; control group, n = 13). The average treatment duration was 11.9 months. MAMP resulted in a significant maxillary advancement (A-VR, 4.34 mm) with significant control over the mandibular growth. No significant increase in the mandibular plane angle was found in the treated group compared with the control group. The upper and lower incisors showed significant protrusion in the treated group. Conclusions Within the limitations of this study and high attrition rate, the MAMP protocol can effectively increase maxillary forward growth with good control over the growth of the mandible antero-posteriorly and vertically.https://doi.org/10.1186/s40510-023-00473-4Skeletal anchorageHybrid hyraxClass III malocclusionMaxillary protraction |
| spellingShingle | Ahmed Mohamed Kamel Nour Eldin Tarraf Ahmed Maher Fouda Ahmad Mohammed Hafez Ahmed El-Bialy Benedict Wilmes Dentofacial effects of miniscrew-anchored maxillary protraction on prepubertal children with maxillary deficiency: a randomized controlled trial Progress in Orthodontics Skeletal anchorage Hybrid hyrax Class III malocclusion Maxillary protraction |
| title | Dentofacial effects of miniscrew-anchored maxillary protraction on prepubertal children with maxillary deficiency: a randomized controlled trial |
| title_full | Dentofacial effects of miniscrew-anchored maxillary protraction on prepubertal children with maxillary deficiency: a randomized controlled trial |
| title_fullStr | Dentofacial effects of miniscrew-anchored maxillary protraction on prepubertal children with maxillary deficiency: a randomized controlled trial |
| title_full_unstemmed | Dentofacial effects of miniscrew-anchored maxillary protraction on prepubertal children with maxillary deficiency: a randomized controlled trial |
| title_short | Dentofacial effects of miniscrew-anchored maxillary protraction on prepubertal children with maxillary deficiency: a randomized controlled trial |
| title_sort | dentofacial effects of miniscrew anchored maxillary protraction on prepubertal children with maxillary deficiency a randomized controlled trial |
| topic | Skeletal anchorage Hybrid hyrax Class III malocclusion Maxillary protraction |
| url | https://doi.org/10.1186/s40510-023-00473-4 |
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