Okabe S, Morimoto Y, Ansai T, Yamada K, Tanaka T, Awano S, Kito S, Takata Y, Takehara T, Ohba T
Division of Diagnostic Radiology, Department of Oral Diagnostic Science, Kyushu Dental College, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu 803-8580, Japan.
Dentomaxillofac Radiol. 2006 May;35(3):191-9. doi: 10.1259/dmfr/12056500.
To evaluate the clinical significance and variation of a calcified stylohyoid complex associated with advanced calcification as detected on panoramic radiographs among 80-year-old subjects.
Panoramic radiographs of 659 patients (262 men and 397 women) and data of their general and dental health conditions were used for the evaluation of the relationship between a calcified stylohyoid complex and general health among 80-year-olds. This study was part of the 8020 Data Bank Survey, which was designed to collect the baseline data of general and dental health conditions in 80-year-old subjects. The morphology of the calcified stylohyoid complexes was allocated to one of 12 patterns. The lengths of the calcified stylohyoid complex were measured directly on the radiographs from the caudal margin of the tympanic plate to the tip of the styloid process.
All of the stylohyoid complexes from the 659 panoramic radiographs could be allocated to one of 12 morphological patterns, and some of their radiographic findings suggested calcification of the carotid artery and lymph nodes. In 80-year-old subjects, the average length of the calcified stylohyoid complexes was 36.7 mm, and ranged from 0.0 mm to 153.0 mm. There appeared to be correlations between the length of the calcified stylohyoid complex and serum calcium concentration and heel bone density, but not with the Community Periodontal Index (CPI).
Dentists should recognize the existence of morphological variation in calcified stylohyoid complexes, especially in length, apparent on panoramic radiographs of 80-year-old patients. In addition, the longer length of the calcified stylohyoid complexes in 80-year-old patients may be a predictor of bone density and high serum calcium concentration level. The findings from the present study may provide potentially life-saving information about elderly people.
评估在80岁受试者的全景X线片上检测到的与晚期钙化相关的钙化茎突舌骨复合体的临床意义及变异情况。
使用659例患者（262名男性和397名女性）的全景X线片及其全身和口腔健康状况数据，评估80岁人群中钙化茎突舌骨复合体与全身健康之间的关系。本研究是8020数据库调查的一部分，该调查旨在收集80岁受试者全身和口腔健康状况的基线数据。钙化茎突舌骨复合体的形态被分为12种模式之一。在X线片上直接测量钙化茎突舌骨复合体从鼓板尾缘到茎突尖端的长度。
659张全景X线片中所有的茎突舌骨复合体都可归为12种形态模式之一，其一些影像学表现提示颈动脉和淋巴结钙化。在80岁受试者中，钙化茎突舌骨复合体的平均长度为36.7mm，范围为0.0mm至153.0mm。钙化茎突舌骨复合体的长度与血清钙浓度和足跟骨密度之间似乎存在相关性，但与社区牙周指数（CPI）无关。
牙医应认识到钙化茎突舌骨复合体存在形态变异，尤其是在长度方面，这在80岁患者的全景X线片上很明显。此外，80岁患者中钙化茎突舌骨复合体较长的长度可能是骨密度和高血清钙浓度水平的一个预测指标。本研究结果可能为老年人提供潜在的救命信息。
