Osteomyelitis of the Jaws: Definition and Classification

2.1 Summary ............................................... 5 2.2 Definition .............................................. 6 2.3 History ................................................... 6 2.4 Overview of Currently Used Classification Systems and Terminology 7 2.5 Currently Used Terms in Classification of Osteomyelitis of the Jaws .................. 11 2.5.1 Acute/Subacute Osteomyelitis .............. 11 2.5.2 Chronic Osteomyelitis ........................... 11 2.5.3 Chronic Suppurative Osteomyelitis: Secondary Chronic Osteomyelitis .......... 11 2.5.4 Chronic Non-suppurative Osteomyelitis 11 2.5.5 Diffuse Sclerosing Osteomyelitis, Primary Chronic Osteomyelitis, Florid Osseous Dysplasia, Juvenile Chronic Osteomyelitis ............. 11 2.5.6 SAPHO Syndrome, Chronic Recurrent Multifocal Osteomyelitis (CRMO) ........... 13 2.5.7 Periostitis Ossificans, Garrès Osteomyelitis ............................. 13 2.5.8 Other Commonly Used Terms ................ 13 2.6 Osteomyelitis of the Jaws: The Zurich Classification System ........... 16 2.6.1 General Aspects of the Zurich Classification System ............................. 16 2.6.2 Acute Osteomyelitis and Secondary Chronic Osteomyelitis ........................... 17 2.6.3 Clinical Presentation ............................. 26 2.6.4 Primary Chronic Osteomyelitis .............. 34 2.7 Differential Diagnosis ............................ 48 2.7.1 General Considerations ......................... 48 2.7.2 Differential Diagnosis of Acute and Secondary Chronic Osteomyelitis ... 50 2.7.3 Differential Diagnosis of Primary Chronic Osteomyelitis ........................... 50 2.1 Summary