应用锥形束CT对颌骨特发性骨硬化症的调查研究

目的运用锥形束CT(CBCT)分析惠州市颌骨特发性骨硬化症(IO)的影像学特征。方法回顾性分析427例口腔疾病患者的CBCT影像学资料,观察颌骨IO的发病情况、分布情况、好发部位以及类型。结果 427例口腔疾病患者经CBCT发现36例颌骨IO,发病率为8.43%。所有颌骨IO皆为单发,男19例(52.78%),女17例(47.22%)。颌骨IO多发生于50~59岁,发病率为27.78%,不同年龄段患者颌骨IO发病率比较,差异无统计学意义(P>0.05)。颌骨IO发生于下颌34例,发生于上颌2例,好发于下颌前磨牙区,发生率为30.56%。颌骨IO的分类中V型、中央硬化型、根尖-骨皮质型均较高。结论 CBCT更能详细反映颌骨IO的形态及周围结构关系,一般无需治疗,但应该定期复查,一旦发现牙根吸收或对周围结构产生挤压等需进行干预。

Investigation of cone-beam CT for idiopathic osteosclerosis of the jaw

Objective To analyze the imaging characteristics of idiopathic osteosclerosis(IO) in Huizhou city by cone beam CT(CBCT). Methods The CBCT imaging data of 427 patients with oral diseases were analyzed retrospectively, and the incidence, distribution, the predilection site and the type of IO of the jaw were observed. Results 36 cases of IO of the jaw were found in 427 patients with oral disease, with a incidence rate of 8.43%. All IO of the jaw were single, with 19 males(52.78%) and 17 females(47.22%). IO of the jaw mostly occurred between the age of 50-59 years, with an incidence rate of 27.78%. There was no statistically significant difference in the incidence of IO of the jaw between different age groups(P>0.05). 34 cases of IO of the jaw occurred in the mandible, 2 cases in the maxilla, mostly in the mandibular premolar area, and the incidence was 30.56%. In the classification of jaundice idiopathic osteosclerosis, V type, central sclerosis type, and apical cortical type are all higher. Conclusion CBCT can reflect the shape and surrounding structure of IO of the jaw in more detail. Generally, no treatment is needed, but regular review should be carried out. Once root resorption and extrusion of surrounding structures are found, intervention is needed.