Comparison of treatment effects between the modified C-palatal plate and cervical pull headgear for total arch distalization in adults
Park Chong-Ook, Sa’aed Noor Laith, Bayome Mohamed, 박재현, 국윤아, 박영석, Hanh Seong-Ho,
소속 상세정보
( Park Chong-Ook ) - Private practice
( Sa’aed Noor Laith ) - Ministry of Defense Iraqi Armed Hospital Dental Department
( Bayome Mohamed ) - Ministry of Defense Iraqi Armed Hospital Dental Department
박재현 ( Park Jae-Hyun ) - Kyung Hee University Graduate School of Dentistry
국윤아 ( Kook Yoon-Ah ) - Catholic University College of Medicine Seoul St. Mary’s Hospital Department of Orthodontics
박영석 ( Park Young-Seok ) - Seoul National University School of Dentistry Department of Oral Anatomy
( Hanh Seong-Ho ) - Catholic University College of Medicine St. Vincent’s Hospital Department of Dentistry
Abstract
Objective: The purpose of this study was to evaluate the dental and skeletaleffects of the modified C-palatal plate (MCPP) for total arch distalizationin adult patients with Class II malocclusion and compare the findings withthose of cervical pull headgear.
Methods: The study sample consisted of thelateral cephalograms of 44 adult patients with Class II Division 1 malocclusion,including 22 who received treatment with MCPP (age, 24.7 ± 7.7 years) and22 who received treatment with cervical pull headgear (age, 23.0 ± 7.7 years).Pre- (T1) and post-treatment (T2) cephalograms were analyzed for 24 linearand angular measurements. Multivariate analysis of variance was performed toevaluate the changes after treatment in each group and differences in treatmenteffects between the two groups.
Results: The mean amount of distalization atthe crown and root levels of the maxillary first molar and the amount of distaltipping was 4.2 mm, 3.5 mm, and 3.9o in the MCPP group, and 2.3 mm, 0.6mm, and 8.6o in the headgear group, respectively. In addition, intrusion by 2.5mm was observed in the MCPP group. In both groups, the distal movementof the upper lip and the increase in the nasolabial angle were statisticallysignificant (p < 0.001). However, none of the skeletal and soft tissue variablesexhibited significant differences between the two groups.
Conclusions: Theresults of this study suggest that MCPP is an effective treatment modality fortotal arch distalization in adults.
키워드
Class II; Headgear; Orthodontic implant; Palatal plate
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