CAJ | 학술논문

目的：探讨颌面部骨岛的临床及影像学特征，分析其发生率、分布规律与年龄、性别及部位的关系。方法对四川大学华西口腔医院放射科患者所拍摄的29 556个全景片做回顾性总结分析。其中男性12 824例，女性16 732例。年龄为8~80岁，平均年龄为23.95岁。结果临床上骨岛无任何症状，X线片表现呈圆形、卵圆形或者不规则形；其大小绝大多数在数毫米到2 cm；以边界清晰、无膨胀的致密硬化区为其特征性表现。29 556个全景片中发现598个骨岛（545例），骨岛发生率为1.84%；49个全景片中发现了2处骨岛，2个全景片发现了3处骨岛。骨岛好发于下颌前磨牙及磨牙根尖区，且无性别差异。结论临床工作中要注意增强对这一变异的认识。
목적： 탐토합면부골도적림상급영상학특정，분석기발생솔、분포규률여년령、성별급부위적관계。방법 대사천대학화서구강의원방사과환자소박섭적29 556개전경편주회고성총결분석。기중남성12 824례，녀성16 732례。년령위8~80세，평균년령위23.95세。결과 림상상골도무임하증상，X선편표현정원형、란원형혹자불규칙형；기대소절대다수재수호미도2 cm；이변계청석、무팽창적치밀경화구위기특정성표현。29 556개전경편중발현598개골도（545례），골도발생솔위1.84%；49개전경편중발현료2처골도，2개전경편발현료3처골도。골도호발우하합전마아급마아근첨구，차무성별차이。결론 림상공작중요주의증강대저일변이적인식。
Objective To provide reference data on frequency and distribution of bone islands (BIs) and investigate their relationship with age, gender, and localization. Methods A population who received a pretreatment and at least one follow-up panoramic radiograph in the Department of Oral Radiology, West China Hospital of Stomatology, Sichuan University, were selected for this retrospective study. A sample population of 29 556 patients (12 824 males and 16 732 females) with different dental complaints and ages ranging from 8 to 80 years (mean age: 23.95 years) were included. Results In the radio-graphic evaluation, BIs appeared as localized, well-defined, non-expansile, radiopaque masses which were round, elliptic, or irregular in shape. Their sizes varied from a few millimeters to about 2 cm in diameter. A total of 598 radiopacities were detected, and 545 patients of 29 556 patients (1.84%) had BIs. Among subjects with multiple lesions, 49 patients had 2 BIs and 2 patients had 3 BIs. The BIs had immense mandibular predilection, with presentation primarily in the premolar/molar region. The condition appeared to have no tendencies based on sex. Conclusion Recognition of BIs variation is significant in dental examinations.