Department of Oral and Maxillofacial Surgery

Message from the Director of the Department

The Department of Oral and Maxillofacial Surgery at Okayama University (OUOMS)  offers surgical treatment for diseases that occur in the mouth, jaw, and face.We specialize in surgery for oral cancer, oral tumor, jaw deformity, temporomandibular joint disease, and maxillofacial trauma. Our department receives many first-visit patients referred from local medical institutions. We strive to provide advanced medical services to each patient as a medical department specialized in oral and maxillofacial surgery with a transparent explanation and with close hospital and clinic cooperation. We also promote the introduction of clinical pathways supporting uniformity and facilitating medical care.



Scope of Target Diseases

  • Oral tumor: benign and malignant tumors (oral cancer) in the oral region
  • Jaw deformity: abnormalities of the jaw resulting in malocclusion
  • Temporomandibular joint diseases: temporomandibular joint dislocation and temporomandibular joint disorder
  • Trauma: bone fracture of the jaw, dental injury, oral soft tissue injury and facial soft tissue injury
  • Cyst: cysts in the jaw and oral soft tissues
  • Salivary gland disease: sialolithiasis, mucocele, and salivary gland tumor
  • Oral mucosal disease and xerostomia (dry mouth): leukoplakia, lichen planus, and intractable stomatitis
  • Inflammation: severe infection in the oral and maxillofacial region
  • Surgical treatment of teeth and periodontal tissues (oral mucosa and alveolar bone): tooth extraction with higher difficulty, tooth extraction in medically compromised patients, pre-prosthetic surgery, and fenestration and extrusion of delayed eruption.
  • Dental implant: difficult cases with atrophy of the jaw and maxillofacial prosthesis with dental implant

Features and Description of Medical Care

  • Oral mucosal disease and oral tumor
    We provide diagnosis and treatment for oral mucosal lesions, precancerous lesions, odontogenic tumor, and oral cancer.
    We produce a treatment policy with the aim of improving treatment outcomes through multidisciplinary treatment.
    Speech disorder, masticatory disturbance, dysphagia, and aesthetic problems after initial treatment are treated by reconstructive surgery, maxillofacial prosthesis, and therapy for dysphagia in close collaboration with the supporting team.
  • We reconstruct the jawbone with a custom made titanium mesh tray and autogenous iliac cancellous bone. Then we reconstruct the occlusion using the dental implant.
  • Superselective intra-arterial infusion chemoradiotherapy for oral cancer
    We are striving to preserve organs as much as possible and to perform tumor resection minimally through a combination of radiotherapy and special chemotherapy. Anticancer drugs are injected super-selectively into the targeted cancer through a catheter.
  • Jaw deformity
    We perform surgical correction with an orthodontist. Our department has one of the largest operation volumes in western Japan. Severe jaw deformity is treated by distraction osteogenesis, which is a method of gradual jaw extension.
  • Habitual temporomandibular luxation
    We perform autologous blood injection therapy and surgical treatment.
  • Oral and maxillofacial implants
    Implantation combined with bone regeneration by bone graft and bone extension is performed for difficult cases such as severe bone defects or jaw atrophy.

For outpatient visits

The outpatient clinic is open during 8:30 a.m. – 17:00 p.m., Monday through Friday. For the first visit, patients must check in at the reception desk before 11:00 a.m. on Tuesday, Thursday, and the second and fourth Friday of each month. Patients with a referral from primary care physician will be accepted from Monday through Friday. Revisiting patients are fundamentally arranged by appointment only.
Our staff are specialized in oral and maxillofacial surgery, providing medical treatment for diseases of many kinds. Several teams provide interdisciplinary treatment for both outpatients and inpatients. For serving medical care safely, patients must make an appointment for surgery including tooth extraction, in principle.