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Juvenile mandibular chronic osteomyelitis (JMCO) is a rare, idiopathic disease of chronic bone inflammation without suppuration, sinus tract formation, or sequestration. As the name suggests, this condition predominately affects children. The few cases of JMCO reported in the literature describe different treatments, and thus a standard therapy protocol has not yet been established. The aim of this paper is to report a clinical case in a 9-year-old girl that was misdiagnosed and unsuccessfully treated for 1 year. After experiencing persistent symptoms, a correct diagnosis was subsequently rendered based on the physical and radiographic examination as well as successful treatment with non-steroidal anti-inflammatory drugs (NSAIDs). The patient received drug therapy followed by periods of remission over a 4 year follow-up period. Diagnosis and treatment of JMCO is a challenge given the rarity and nonspecific signs and symptoms of this condition. Treatment with NSAIDs and regular follow-up is a conservative option for these patients.

Background: Osteoradionecrosis of the jaw (ORNJ) is the most severe and complex sequel of head and neck radiotherapy (RT) because of the bone involved, it may cause pain, paresthesia, foul odor, fistulae with suppuration, need for extra oral communication and pathological fracture. We treated twenty lesions of ORNJ using low-level laser therapy (LLLT) and antimicrobial photodynamic therapy (aPDT). The objective of this study was to stimulate the affected area to homeostasis and to promote the healing of the oral mucosa., Methods: We performed aPDT on the exposed bone, while LLLT was performed around the bone exposure (red spectrum) and on the affected jaw (infrared spectrum). Monitoring and clinical intervention occurred weekly or biweekly for 2 years., Results: 100% of the sample presented clinical improvement, and 80% presented complete covering of the bone exposure by intact oral mucosa., Conclusion: LLLT and aPDT showed positive results as an adjuvant therapy to treat ORNJ.