成长期受试者矫形前牵引(III级)和后牵引(II级)后的上颌齿骨结果。

Q3 Medicine Minerva stomatologica Pub Date : 2020-09-22 DOI:10.23736/S0026-4970.20.04403-9
A. Silvestrini-Biavati, N. Battistini, F. Silvestrini-Biavati, M. Migliorati, A. Ugolini
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引用次数: 0

摘要

本回顾性研究探讨了两种矫形器的治疗效果,一种是用于II类骨错颌的斯蒂芬森板(SP)口外矫形牵引,另一种是用于III类骨错颌的Delaire面罩(FM)。方法sfm组25例患者,其中男性13例;12名女性,平均年龄9.3岁,年龄1-2岁,接受Delaire面膜治疗(平均治疗时间1.5年±1.2年,每侧700-800克)。SP组24例,其中男性9例;女性15例,平均年龄10.5岁±1.9岁,年龄1-3岁),经口外矫形牵引Stephenson钢板治疗(平均治疗时间1.6年±0.8岁,每侧700-900克)。所有受试者均获得治疗前(T0)和治疗后(T1)的侧位脑电图并进行追踪。对各变量进行描述性统计、Shapiro-Wilks检验和T检验。结果FM组上颌骨近端移动2.4 mm, PS组上颌骨远端移动0.4 mm。SP后SNA°降低1.4°,FM后SNA°升高0.7°。SP治疗后,覆盖流减少4mm, FM治疗后,覆盖流增加2.4 mm,磨牙关系(4.5 vs 0.8 mm)。结论面罩比口外牵引Stephenson钢板诱导更大的骨骼运动。PS产生了整个上颌骨有限的向下运动,并显著矫正了门牙和磨牙的背部。根据我们的结果,可以推测骨科牵引上颌骨的近中端可能比远端更容易运动。
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Maxillary dento-skeletal outcomes after orthopedic forward (class III) and backward (class II) traction in growing subjects.
BACKGROUND This retrospective study investigated the treatment effects produced by two orthopedic appliances, an extraoral orthopedic traction on Stephenson plate (SP) in skeletal Class II malocclusion and Delaire Facial Mask (FM) in skeletal Class III malocclusion. METHODS FM Group comprised 25 patients (13 males; 12 females, mean age 9.3 years, CS 1-2) undergoing Delaire Facial Mask therapy (mean treatment duration 1.5 years ± 1.2, 700-800 gr per side). SP Group comprised 24 patients (9 males; 15 females, mean age 10.5 years ± 1.9, CS 1-3) treated with extraoral orthopedic traction on Stephenson plate (mean treatment duration 1.6 years ± 0.8, 700-900 gr per side). For all subjects lateral cephalograms before (T0) and after (T1) therapy were obtained and traced. Descriptive statistics, Shapiro-Wilks and T test were calculated for each variable. RESULTS A mesial movement of the maxillary bone of 2.4 mm in the FM group and a distal movement in the PS group (0.4 mm) was found. SNA° was reduced 1.4° after SP and increased 0.7° after FM. The overjet decreased by 4 mm after SP, while it grew after FM by 2.4 mm, as well as molars relationships (4.5 vs 0.8 mm). CONCLUSIONS Facemask induced greater skeletal movements than extraoral traction on Stephenson plate. PS produced a limited downward movement of the whole maxilla together with notable incisors and molars back corrections. Based on our results, it could be speculated that orthopedic mesial traction of maxillary bone may result easier than the distal movement.
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来源期刊
Minerva stomatologica
Minerva stomatologica DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
1.50
自引率
0.00%
发文量
0
期刊介绍: The journal Minerva Stomatologica publishes scientific papers on dentistry and maxillo-facial surgery. Manuscripts may be submitted in the form of editorials, original articles, review articles, case reports, therapeutical notes, special articles and letters to the Editor. Manuscripts are expected to comply with the instructions to authors which conform to the Uniform Requirements for Manuscripts Submitted to Biomedical Editors by the International Committee of Medical Journal Editors (www.icmje.org). Articles not conforming to international standards will not be considered for acceptance.
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