Poulsen Astrid Rathcke, Sonnesen Liselotte
Department of Odontology, Section of Orthodontics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Acta Odontol Scand. 2023 Aug;81(6):464-472. doi: 10.1080/00016357.2023.2176920. Epub 2023 Feb 14.
The aim of this cross-sectional study was to analyse the association between dental and skeletal maturation in children born between 2005 and 2010.
Dental and skeletal maturation of 117 ethnic Scandinavian children born between 2005 and 2010 (70 girls, 47 boys, mean age 11.48 years) was analysed. Dental maturation (DM) was assessed on orthopantomographs (OPs) by using Demirjian's and Haavikko's methods while skeletal maturation was assessed on hand-wrist radiographs by use of Helm's method. The correlation between skeletal and DM was analysed using Spearman's rho (s). Additionally, the most frequent DM stage in relation to the skeletal maturation stage was analysed by logistic regression adjusted for age and sex.
The correlation between dental and skeletal maturation was significant for all teeth (s = 0.071-0.562; < .000- = .035) except for the first incisor and the first molar. Logistic regression analysis showed that when the mandibular and maxillary canines are ¾ mineralized, this is significantly associated with the beginning of the adolescent period before peak height velocity (PHV) (PP2= < .005-< .05). Likewise, when the mandibular second premolars are ¾ mineralized, this is significantly associated with the maturation stage PP2= or S (PP2= < .05, S: < .005-< .05), both of which are before PHV at the beginning of the adolescent period.
Limited sample size and the X-rays were taken before orthodontic treatment, which may have introduced a selection bias.
When the root of the canines or second premolars is ¾ mineralized, it may indicate the beginning of the adolescent period with increased skeletal growth intensity.
本横断面研究旨在分析2005年至2010年出生儿童的牙齿与骨骼成熟之间的关联。
对117名2005年至2010年出生的斯堪的纳维亚族儿童（70名女孩，47名男孩，平均年龄11.48岁）的牙齿和骨骼成熟情况进行分析。通过使用德米尔坚法和哈维科法在曲面断层片（OP）上评估牙齿成熟度（DM），同时使用赫尔姆法在手-腕部X线片上评估骨骼成熟度。使用斯皮尔曼等级相关系数（s）分析骨骼与DM之间的相关性。此外，通过对年龄和性别进行校正的逻辑回归分析与骨骼成熟阶段相关的最常见DM阶段。
除第一恒切牙和第一恒磨牙外，所有牙齿的牙齿与骨骼成熟之间均存在显著相关性（s = 0.071 - 0.562；P < 0.000 - P = 0.035）。逻辑回归分析表明，当下颌和上颌尖牙矿化至3/4时，这与青春期身高生长高峰（PHV）之前青春期的开始显著相关（PP2 = P < 0.005 - P < 0.05）。同样，当下颌第二前磨牙矿化至3/4时，这与成熟阶段PP2 = 或S显著相关（PP2 = P < 0.05，S：P < 0.005 - P < 0.05），这两个阶段均在青春期开始时的PHV之前。
样本量有限，且X线片是在正畸治疗前拍摄的，这可能引入了选择偏倚。
当尖牙或第二前磨牙的牙根矿化至3/4时，可能表明青春期开始，骨骼生长强度增加。
