Evaluation of Dentoalveolar and Dentofacial Effects of a Mini-Screw-Anchored Pendulum Appliance in Maxillary Molar Distalization

Objective:Objective:The aim of this study was to evaluate the dentoalveolar and dentofacial effects of a mini-screw-anchored pendulum appliance in maxillary molar distalization.Methods:Twenty patients with the Angle Class II molar relationship (mean age 14.05±2.4 years) were treated with a mini-scre...

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Main Authors: Mümin Kırcalı, Alime Sema Yüksel
Format: Article
Language:English
Published: Galenos Yayinevi 2018-12-01
Series:Turkish Journal of Orthodontics
Subjects:
Online Access: http://www.turkjorthod.org/archives/archive-detail/article-preview/evaluation-of-dentoalveolar-and-dentofacial-effect/53447
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author Mümin Kırcalı
Alime Sema Yüksel
author_facet Mümin Kırcalı
Alime Sema Yüksel
author_sort Mümin Kırcalı
collection DOAJ
description Objective:Objective:The aim of this study was to evaluate the dentoalveolar and dentofacial effects of a mini-screw-anchored pendulum appliance in maxillary molar distalization.Methods:Twenty patients with the Angle Class II molar relationship (mean age 14.05±2.4 years) were treated with a mini-screwanchored pendulum appliance for molar distalization. A mini-screw 1.9 mm in diameter and 9 mm in length was used to support the pendulum appliance. The springs of the pendulum appliance were activated at 90° and exerted 250-300 gr force per side. Lateral cephalometric radiographs and dental cast models were obtained from all the patients before and after maxillary molar distalization.Results:A 0.6° increase in the SNA and SNB angles, and a 0.3° decrease in the SN/GoGn angle were found to be statistically significant. In the maxillary first molars, 4.2-mm significant distalization, 0.6-mm significant intrusion, and 8.9° significant distal tipping were observed. The spontaneous distal drift of the maxillary second premolars was found to be statistically significant. In the maxillary first premolar and incisor positions, significant mesialization was observed; however, the changes in the angles of these teeth were found to be insignificant.Conclusion:A mini-screw-anchored pendulum appliance is an effective method for maxillary molar distalization that controls the undesired anchorage loss observed in conventional methods.
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spelling doaj.art-814e70a8f9ca4544b12c9f5e8ff9f8df2023-08-01T11:03:49ZengGalenos YayineviTurkish Journal of Orthodontics2528-96592148-95052018-12-0131410310910.5152/TurkJOrthod.2018.1800413049054Evaluation of Dentoalveolar and Dentofacial Effects of a Mini-Screw-Anchored Pendulum Appliance in Maxillary Molar DistalizationMümin Kırcalı0Alime Sema Yüksel1 Private Practice, Bursa, Turkey Department of Orthodontics, Gazi University School of Dentistry, Ankara, Turkey Objective:Objective:The aim of this study was to evaluate the dentoalveolar and dentofacial effects of a mini-screw-anchored pendulum appliance in maxillary molar distalization.Methods:Twenty patients with the Angle Class II molar relationship (mean age 14.05±2.4 years) were treated with a mini-screwanchored pendulum appliance for molar distalization. A mini-screw 1.9 mm in diameter and 9 mm in length was used to support the pendulum appliance. The springs of the pendulum appliance were activated at 90° and exerted 250-300 gr force per side. Lateral cephalometric radiographs and dental cast models were obtained from all the patients before and after maxillary molar distalization.Results:A 0.6° increase in the SNA and SNB angles, and a 0.3° decrease in the SN/GoGn angle were found to be statistically significant. In the maxillary first molars, 4.2-mm significant distalization, 0.6-mm significant intrusion, and 8.9° significant distal tipping were observed. The spontaneous distal drift of the maxillary second premolars was found to be statistically significant. In the maxillary first premolar and incisor positions, significant mesialization was observed; however, the changes in the angles of these teeth were found to be insignificant.Conclusion:A mini-screw-anchored pendulum appliance is an effective method for maxillary molar distalization that controls the undesired anchorage loss observed in conventional methods. http://www.turkjorthod.org/archives/archive-detail/article-preview/evaluation-of-dentoalveolar-and-dentofacial-effect/53447 class iiorthodontic anchorageorthodontic appliance
spellingShingle Mümin Kırcalı
Alime Sema Yüksel
Evaluation of Dentoalveolar and Dentofacial Effects of a Mini-Screw-Anchored Pendulum Appliance in Maxillary Molar Distalization
Turkish Journal of Orthodontics
class ii
orthodontic anchorage
orthodontic appliance
title Evaluation of Dentoalveolar and Dentofacial Effects of a Mini-Screw-Anchored Pendulum Appliance in Maxillary Molar Distalization
title_full Evaluation of Dentoalveolar and Dentofacial Effects of a Mini-Screw-Anchored Pendulum Appliance in Maxillary Molar Distalization
title_fullStr Evaluation of Dentoalveolar and Dentofacial Effects of a Mini-Screw-Anchored Pendulum Appliance in Maxillary Molar Distalization
title_full_unstemmed Evaluation of Dentoalveolar and Dentofacial Effects of a Mini-Screw-Anchored Pendulum Appliance in Maxillary Molar Distalization
title_short Evaluation of Dentoalveolar and Dentofacial Effects of a Mini-Screw-Anchored Pendulum Appliance in Maxillary Molar Distalization
title_sort evaluation of dentoalveolar and dentofacial effects of a mini screw anchored pendulum appliance in maxillary molar distalization
topic class ii
orthodontic anchorage
orthodontic appliance
url http://www.turkjorthod.org/archives/archive-detail/article-preview/evaluation-of-dentoalveolar-and-dentofacial-effect/53447
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AT alimesemayuksel evaluationofdentoalveolaranddentofacialeffectsofaminiscrewanchoredpendulumapplianceinmaxillarymolardistalization