Donmez Merve, Okumus Ozlem, Pekiner Filiz Namdar
Department of Oral Diagnosis and Radiology, Faculty of Dentistry, Marmara University, Istanbul, Turkiye.
Department of Oral Diagnosis and Radiology, Faculty of Dentistry, Istanbul Kemerburgaz University, Istanbul, Turkiye.
Eur J Dent. 2017 Apr-Jun;11(2):210-215. doi: 10.4103/ejd.ejd_56_17.
The styloid process (SP) is a bony projection, located just anterior to the stylomastoid foramen, the normal length of which is approximately 20-30 mm. The length of SP when exceeds 30 mm it is said to "elongated." The purpose of this retrospective study was to assess the prevalence of elongated SP (ESP) by cone beam computed tomography (CBCT) examination in Turkish subpopulation and its relation to gender and age.
This study analyzed CBCT of 1000 patients who were randomly selected to participate and were aged from 14 to 78 years. Any radiograph with questionable SP was excluded from the study. The apparent length and thickness of the SP were measured by two dental and maxillofacial radiologists. The ESP was classified with radiographic appearance-based morphology of elongation. The data were analyzed with the IBM SPSS Statistics 20.0.
The mean age of patients was 42.49 ± 14.83 years. The length of SP was measured over 30 mm in 151 patients (15.1%). A total of 151 CBCT showed ESP, of which 87 (57.6%) were noticed in males and 64 (42.4%) in female patients. The length of right-sided SP ranged from 30.05 to 85.49 mm and left-sided SP from 30.14 to 83.72 mm.
CBCT is a valuable diagnostic imaging tool which makes accurate length measurements. It is important for the clinicians to be aware of natural variations of the SP whose clinical importance is not well understood.
茎突是位于茎乳孔前方的骨性突起，其正常长度约为20 - 30毫米。当茎突长度超过30毫米时，即被称为“茎突过长”。本回顾性研究的目的是通过锥形束计算机断层扫描（CBCT）检查评估土耳其人群中茎突过长（ESP）的患病率及其与性别和年龄的关系。
本研究分析了1000名随机选取的年龄在14至78岁之间参与研究的患者的CBCT图像。任何茎突可疑的X线片均被排除在研究之外。两名口腔颌面放射科医生测量了茎突的表观长度和厚度。根据基于影像学表现的伸长形态对ESP进行分类。数据采用IBM SPSS Statistics 20.0进行分析。
患者平均年龄为42.49±14.83岁。151名患者（15.1%）茎突长度测量超过30毫米。共有151例CBCT显示茎突过长，其中87例（57.6%）见于男性患者，64例（42.4%）见于女性患者。右侧茎突长度范围为30.05至85.49毫米；左侧茎突长度范围为30.14至83.72毫米。
CBCT是一种有价值的诊断成像工具，能够进行准确长度测量。临床医生了解茎突的自然变异很重要，但其临床意义尚未得到充分理解。
