This study aims to evaluate the position, morphometric, and morphological features of the temporozygomatic suture (TZS) located on the zygomatic arch (ZA) in dry adult human skulls. Thirty-two crania were evaluated. Measurements for the TZS were carried out using the ImageJ software. Morphometric measurements were carried out bilaterally in 23 crania and unilaterally in 9 crania (right: 4, left: 5). A total of 55 TZSs were analyzed. Localization of the TZS was determined according to the reference landmarks on the ZA. Morphologic features of the TZS evaluated in terms of “joint shape type” and “suture margin pattern”. Descriptive statistics of the morphometric and morphologic variables were calculated. A statistically significant difference between the right and left sides was observed for the localization of the TZS (p < 0.05). TZS is located more anteriorly on the left side than the right side. Based on the “joint shape type”, four types of TZS were observed: Type 1 (angular) (34.55%), Type 2 (curvy) (34.55%), Type 3 (oblique) (14.55%), Type 4 (horizontal) (16.36%). Based on the “suture margin pattern”, five types of TZS were observed: Type A (linear) (12.73%), Type B (denticulate) (34.55%), Type C (serrated) (23.64%), Type D (mixt) (21.82%), Type E (fused) (7.27%). No significant association between the type and lateralization was found for both morphologic classifications. To the best of our knowledge, this is the first published report regarding the localization and morphologic classification of the TZS in adult human crania. Considering the TZS with its morphometric and morphological features may contribute to clinical or forensic medical evaluations.

本研究旨在评估位于干燥成人头骨颧弓 (ZA) 上的颞颧缝 (TZS) 的位置、形态计量学和形态学特征。评估了 32 个颅骨。TZS 的测量是使用 ImageJ 软件进行的。在 23 个颅骨中进行双侧形态测量，在 9 个颅骨中进行单侧形态测量（右：4，左：5）。总共分析了 55 个 TZS。TZS 的定位是根据 ZA 上的参考地标确定的。TZS 的形态学特征根据“关节形状类型”和“缝合边缘模式”进行评估。计算了形态测量学和形态学变量的描述性统计。对于 TZS 的定位，观察到右侧和左侧之间存在统计学上的显着差异（p < 0.05)。TZS 位于左侧比右侧更靠前。根据“关节形状类型”，观察到四种类型的TZS：1型（角型）（34.55%）、2型（弯曲型）（34.55%）、3型（斜型）（14.55%）、4型（水平型） ) (16.36%)。根据“缝合边缘模式”，观察到五种类型的 TZS：A 型（线性）（12.73%）、B 型（齿状）（34.55%）、C 型（锯齿状）（23.64%）、D 型（混合型） ) (21.82%)，E 型（融合）(7.27%)。对于两种形态学分类，类型和偏侧化之间没有显着关联。据我们所知，这是第一份关于 TZS 在成人颅骨中的定位和形态分类的报告。考虑 TZS 及其形态学和形态学特征可能有助于临床或法医评估。