Abstract：
The \"Dense Bone Island\" (DBI) is a radiopaque lesion referred in leterature as idiopathic osteosclerosis, enostosis, focal osteosclerosis, periapical osteopetrosis, and bone scar. The DBI are accidentally found in routinary Xray of bone structures. In the maxillary bones, often localized in the mandible, especially in the molar region, with a reported incidence ranging from 2.3 to 9.7%. DBI does not seem to develop until the first phase of adolescence and it is usually found in adolescents and in young adults. In 40% of cases DBI seems to increase in size after a 10 year follow-up, because the DBI found in jaws and in long bones seem to increase proportionally to the bone growth. A case of a 26 years old patient and the surgical treatment is presented. This is the first reported case where complete X-ray Orthopantomography follow-up showed the evolution of the lesion since its onset.
摘要：
“致密骨岛”（DBI）是一种不透射线的病变，在Leterature中被称为特发性骨硬化，enostosis,局灶性骨硬化，根尖骨症，和骨疤。DBI是在骨骼结构的常规X射线中偶然发现的。在上颌骨中，通常位于下颌骨，特别是在磨牙区，报告的发病率为2.3％至9.7％。DBI似乎直到青春期的第一阶段才发展，通常在青少年和年轻人中发现。在40％的病例中，经过10年的随访，DBI的规模似乎增加，因为在颌骨和长骨中发现的DBI似乎与骨骼生长成比例增加。介绍了一例26岁的患者，并进行了手术治疗。这是第一例报道的病例，完整的X射线直视摄影随访显示病变自发作以来的演变。
