D'Amato Giuseppe, Tofangchiha Maryam, Sheikhdavoodi Nima, Mohammadi Zahra, Ranjbaran Mehdi, Jabbarian Razieh, Patini Romeo
Department of Faculty of Medicine and Surgery, Unicamillus International Medical University, 00131 Rome, Italy.
Department of Oral and Maxillofacial Radiology, Dental Caries Prevention Research Center, Qazvin University of Medical Sciences, Qazvin 34197-59811, Iran.
Diagnostics (Basel). 2024 Feb 20;14(5):459. doi: 10.3390/diagnostics14050459.
This study aimed to assess the relationship between skeletal malocclusion and radiomorphometric indices of the mandible in long face patients. This cross-sectional study evaluated 174 lateral cephalograms and panoramic radiographs of long face patients between the ages of 17 and 30 presenting at the Orthodontics Department of Qazvin Dental School. The gonial angle, antegonial angle, type of antegonial notch, and depth of antegonial notch were measured bilaterally on panoramic radiographs. The correlation between the radiomorphometric parameters and the type of occlusion was analyzed using one-way ANOVA, independent -test, Chi-square test, and Fisher's exact test (alpha = 0.05). The mean size of gonial angle was significantly different among the three classes of occlusion ( = 0.046), while the difference was not significant regarding the antegonial angle size and antegonial notch depth ( > 0.05). An independent -test showed that the mean sizes of gonial angle ( = 0.026) and antegonial angle ( = 0.036), and the antegonial notch depth ( = 0.046) in males, were significantly greater than the values in females. According to the Chi-square and Fisher's exact test, the right antegonial notch type was significantly different among the three classes of malocclusion ( = 0.006), while this difference was not significant in the left side ( = 0.318). The right antegonial notch type II was more common in males, while the right antegonial notch type I was more common in females ( = 0.014). According to the results, the indices of gonial angle and type of antegonial notch can be clinically useful for predicting the growth rate of the mandible and designing the appropriate treatment in long face patients.
本研究旨在评估长面型患者骨骼错牙合与下颌骨放射形态测量指标之间的关系。这项横断面研究评估了加兹温牙科学院正畸科174例年龄在17至30岁之间的长面型患者的头颅侧位片和全景X线片。在全景X线片上双侧测量下颌角、下颌角前切迹角、下颌角前切迹类型和下颌角前切迹深度。使用单因素方差分析、独立样本t检验、卡方检验和费舍尔精确检验（α = 0.05）分析放射形态测量参数与错牙合类型之间的相关性。下颌角的平均大小在三类错牙合之间存在显著差异（P = 0.046），而下颌角前切迹角大小和下颌角前切迹深度的差异不显著（P > 0.05）。独立样本t检验显示，男性的下颌角平均大小（P = 0.026）、下颌角前切迹角平均大小（P = 0.036）和下颌角前切迹深度（P = 0.046）显著大于女性的值。根据卡方检验和费舍尔精确检验，右侧下颌角前切迹类型在三类错牙合之间存在显著差异（P = 0.006），而左侧差异不显著（P = 0.318）。右侧下颌角前切迹II型在男性中更常见，而右侧下颌角前切迹I型在女性中更常见（P = 0.014）。根据结果，下颌角指标和下颌角前切迹类型在临床上可用于预测长面型患者下颌骨的生长速率并设计合适的治疗方案。
