在巴西人群中检测到的双侧下颌髁突患病率。
The prevalence of bifid mandibular condyle detected in a Brazilian population.
作者信息
Menezes A V, de Moraes Ramos F M, de Vasconcelos-Filho J O, Kurita L M, de Almeida S M, Haiter-Neto F
机构信息
Oral Radiology, School of Dentistry of Piracicaba-UNICAMP, Brazil.
出版信息
Dentomaxillofac Radiol. 2008 May;37(4):220-3. doi: 10.1259/dmfr/72314113.
OBJECTIVES
To determine the prevalence of bifid mandibular condyle (BMC) detected on panoramic radiographs in a Brazilian population.
METHODS
The panoramic radiographs of 50 080 radiographs taken from 1999 to 2006 were retrospectively reviewed in order to identify BMC cases.
RESULTS
9 (0.018%) of the 50 080 patients, 2 men and 7 women, with age ranging from 20 years to 74 years, had BMC. These conditions were unilateral in 7 (78%) subjects and bilateral in 2 (22%) subjects. All patients denied a history of any previous trauma or fracture of the mandible, pain, or trismus.
CONCLUSIONS
BMC is an uncommon finding in a group of Brazilian subjects and, although it is rare, dentists should be aware of this condition on routine panoramic radiographs and its implications for function and appropriate treatment modalities.
目的
确定巴西人群全景X线片上检测到的双侧下颌髁突（BMC）的患病率。
方法
回顾性分析1999年至2006年拍摄的50080张全景X线片，以确定BMC病例。
结果
50080例患者中有9例（0.018%）患有BMC，其中男性2例，女性7例，年龄在20岁至74岁之间。这些情况在7例（78%）受试者中为单侧，在2例（22%）受试者中为双侧。所有患者均否认有下颌骨既往创伤或骨折、疼痛或牙关紧闭的病史。
结论
BMC在一组巴西受试者中是一种罕见的发现，尽管很少见，但牙医在常规全景X线片上应了解这种情况及其对功能和适当治疗方式的影响。
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