颌骨硬化性骨髓炎可分为局限性及弥漫性二型。局限型即所谓的致密性骨炎,为颌骨常见而易治之疾病;弥漫型(DSO)主要见于下领骨,很少见,在诊断和治疗上均有困难。DSO还被称为“原发性慢性骨髓炎”、 Jaw osteositis can be divided into limitations and diffuse type II. The limited type of so-called compact osteitis, common and easy to manage the jaw disease; diffuse type (DSO) mainly seen in the lower part of the collarbone, is rare, both in the diagnosis and treatment difficulties. DSO is also known as “primary chronic osteomyelitis”