DISORDERS OF MAXILLA AND MANDIBLE DR.SHAHZADI TAYYABA HASHMI shahzadi@inaya.edu.sa
DISORDERS OF MAXILLA AND MANDIBLE MAJOR INFECTIONS OF JAWS CYSTS OF JAWS ODONTOGENIC and NON-ODONTOGENIC TUMOURS OF JAWS
MAJOR INFECTIONS OF JAWS OSTEOMYELITIS Definition: An inflammatory process within medullary ( trabecular) bone that involves the marrow spaces Osteomyelitis of jaws is mainly a disease of adults with several potential sources of infection.
TYPES OF OSTEOMYELITIS ACUTE OSTEOMYELITIS CHRONIC OSTEOMYELITIS GARRE OSTEOMYELITIS
ACUTE OSTEOMYELITIS DEFINITION A rapidly destructive inflammatory process within bone that consist of Granulation tissue, Purulent exudate and islands of non-vital bone (sequestra)
CAUSES OF ACUTE OSTEOMYELITIS Untreated periapical abcess Minor traumatic incident involving a mandible that has its blood supply compromised by previous high doses of radiation for the treatment of malignancy( OSTEORADIONECROSIS)
CLINICAL FEATURES OF ACUTE OSTEOMYELITIS Infection of mandible Early complaints are Severe, Throbbing pain and swelling Later distension of periosteum with pus occurs Finally, subperiosteal bone formation causes the swelling to become firm Associated teeth are tender and mobile Overlying gingiva is red, swollen and tender Regional lymph nodes are enlarged and tender
RADIOGRAPHIC FEATURES OF OSTEOMYELITIS Ill-defined margins with fluffy and moth-eaten appearance TREATMENT: Surgical treatment to establish drainage of purulent exudates Use of antibiotics to kill the microorganisms involved
CHRONIC OSTEOMYELITIS Persistent low grade infection associated with bone destruction and Granulation tissue formation with little suppuration CLINICAL FEATURES: Persistent ache / pain with exposed bone
TREATMENT TREATMENT: Antibiotics
GARRE OSTEOMYELITIS It is an unusual hyperplasic reaction of the periosteum that is unique to young patients CLINICAL FEATURES: associated with advanced acute caries in young patients Occurs when free gingival margin remain above the height of contour of tooth results in food impaction
RADIOGRAPHIC APPEARANCE AND TREATMENT onion skin appearance TREATMENT: Identification of source of infection Extraction of the tooth involved in infection Surgical treatment of tissues in molar area
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