Kastamoni Yadigar, Dursun Ahmet, Sanli Onur Can, Yuzbasioglu Neslihan, Albay Soner
Department of Anatomy, Faculty of Medicine, Suleyman Demirel University, Isparta.
Department of Anatomy, Faculty of Medicine, Medipol University, Istanbul, Turkey.
J Craniofac Surg. 2020 Oct;31(7):2036-2039. doi: 10.1097/SCS.0000000000006670.
The aim of this study is to present reliable data by measuring the morphometric properties of the mandible in the fetal period.
A study was performed on mandibles of 35 fetuses (18 male fetuses and 17 female fetuses), aged between 21 and 40 weeks of gestation. Fetuses were examined in 3 groups according to their developmental stages: 2nd trimester, 3rd trimester, and full-term. Morphometric measurements were performed for both the right and left sides of each mandible. The measurements of the mental foramen were performed using a digital caliper, and other measurements were performed using the ImageJ program. The data obtained were analyzed using the SPSS 20 for Windows program.
There was no significant gender difference for all parameters. When the parameters were compared by the trimesters, no significant difference was determined in the 2nd trimester - 3rd trimester, 3rd trimester-full-term, and second trimester - full-term comparisons of the angle of the mandible, and there was a significant difference in all other parameters (P < 0.05). According to the trimesters, all parameters, except the angle of the mandible, increased naturally with the development of the mandible. It was observed that the angle of the mandible decreased from the 2nd trimester to the 3rd trimester and increased from the 3rd trimester to the full term. When the right and left measurements were compared, no significant difference was found for all parameters in both general and trimester groups.
The present study includes fetal mandibular parameters that have not been reported elsewhere. It is thought that the obtained data will contribute to the determination of anomalies, pathologies, and variations.
本研究的目的是通过测量胎儿期下颌骨的形态学特性来提供可靠的数据。
对35例胎龄在21至40周之间的胎儿（18例男性胎儿和17例女性胎儿）的下颌骨进行研究。根据胎儿的发育阶段将其分为3组：孕中期、孕晚期和足月。对每个下颌骨的右侧和左侧进行形态学测量。使用数字卡尺测量颏孔，其他测量使用ImageJ程序进行。使用SPSS 20 for Windows程序对获得的数据进行分析。
所有参数在性别上均无显著差异。按孕期比较参数时，下颌骨角度在孕中期 - 孕晚期、孕晚期 - 足月以及孕中期 - 足月比较中均未发现显著差异，而在所有其他参数中存在显著差异（P<0.05）。根据孕期，除下颌骨角度外，所有参数均随着下颌骨的发育而自然增加。观察到下颌骨角度从孕中期到孕晚期减小，从孕晚期到足月增加。比较左右测量值时，在总体组和孕期组的所有参数中均未发现显著差异。
本研究包含了其他地方未报道过的胎儿下颌骨参数。认为所获得的数据将有助于确定异常、病变和变异情况。
