Clinic of Orthodontics, Gothenburg, Public Dental Service, Region Västra Götaland, Sweden.
Cleft Palate Centre and University Hospital Aarhus and University of Aarhus, Denmark.
Eur J Orthod. 2021 Aug 3;43(4):381-386. doi: 10.1093/ejo/cjab007.
It is suggested that dental agenesis affects maxillary protrusion and dental arch relationship in children with unilateral cleft lip and palate (UCLP). In addition, an association between the need for orthognathic surgery and dental agenesis is reported.
The aim was to study the impact of maxillary dental agenesis on craniofacial growth and dental arch relationship in 8-year-old children with UCLP.
The sample consisted of individuals with UCLP from Scandcleft randomized trials. The participants had available data from diagnosis of maxillary dental agenesis as well as cephalometric measurements (n = 399) and GOSLON assessment (n = 408) at 8 years of age.
A statistically significant difference was found for ANB between individuals with agenesis of two or more maxillary teeth (mean 1.52°) in comparison with those with no or only one missing maxillary tooth (mean 3.30° and 2.70°, respectively). Mean NSL/NL was lower among individuals with agenesis of two or more maxillary teeth (mean 9.90°), in comparison with individuals with no or one missing maxillary tooth (mean 11.46° and 11.45°, respectively). The number of individuals with GOSLON score 4-5 was 47.2% in the group with two or more missing maxillary teeth and 26.1% respectively 26.3% in the groups with no or one missing maxillary tooth. No statistically significant difference was found in the comparison between individuals with no agenesis or with agenesis solely of the cleft-side lateral.
Maxillary dental agenesis impacts on craniofacial growth as well as dental arch relationship and should be considered in orthodontic treatment planning.
有研究表明，牙缺失会影响单侧唇腭裂（UCLP）儿童上颌的突出度和牙弓关系。此外，有报道称牙缺失与正颌手术需求之间存在关联。
本研究旨在探讨上颌牙缺失对 8 岁 UCLP 儿童颅面生长和牙弓关系的影响。
该样本由 Scandcleft 随机试验中的 UCLP 个体组成。参与者有上颌牙缺失的诊断数据，以及 8 岁时的头颅侧位片测量（n = 399）和 GOSLON 评估（n = 408）。
在 ANB 方面，有两个或更多上颌牙缺失的个体（平均 1.52°）与只有一个上颌牙缺失的个体（平均 3.30°和 2.70°）之间存在统计学差异。有两个或更多上颌牙缺失的个体的 NSL/NL 平均值较低（平均 9.90°），与无或仅有一个上颌牙缺失的个体（平均 11.46°和 11.45°）相比。有两个或更多上颌牙缺失的个体中，GOSLON 评分 4-5 的个体占 47.2%，而无上颌牙缺失或仅有一个上颌牙缺失的个体分别占 26.1%和 26.3%。在无缺失或仅有单侧缺失的个体之间的比较中，未发现统计学差异。
上颌牙缺失会影响颅面生长和牙弓关系，应在正畸治疗计划中考虑。
