ABSTRACT
Subject(s)
Humans , Bone Regeneration , Bone Resorption , Dental Implants , Follow-Up Studies , Membranes , Retrospective Studies , Survival Rate , Transplantation, Homologous , TransplantsABSTRACT
Subject(s)
Adult , Female , Humans , Dermoid Cyst , Epidermal Cyst , Epithelium , Follow-Up Studies , Head , Jaw , Keratins , Mandible , Microscopy , Mouth Floor , Neck , Orbit , TeratomaABSTRACT
Subject(s)
Humans , Bone Transplantation , Dental Occlusion , Incisor , Jaw Fractures , Molar , Surgery, OralABSTRACT
Subject(s)
Humans , Bone Regeneration , Bone Transplantation , Lifting , Mandible , Maxilla , Survival Rate , TransplantsABSTRACT
PURPOSE: The purpose of this study was to evaluate marginal bone loss to the bone crest functionally loaded for up to eighteen months and also with regard to other variables of interest. MATERIAL AND METHODS: 135 endosseous implants(GS II, Osstem, South Korea) were placed in 35 patients. The design of GS II implant is straight with the microthread. Radiographic examinations were conducted at baseline (implant loading) and 3, 6, 9, 12 and 18 months after loading. Marginal bone level measurement was made from the reference point to the lowest observed point of contact of the marginal bone with the fixture. The reference point of the fixture was the border between the blasted surface and machined surface of the fixture. RESULTS: Implants were on function for a mean 12.7 months(range, 3-18 months). For the 56 maxillary and 79 mandibular implants, mean marginal bone loss was 0.68 mm and 0.70 mm. Implants placed maxillary posterior area displayed more crestal bone loss than the other position. The difference between mesial and distal bone levels was statistically significant (p0.05). CONCLUSION: This study indicates the amount of marginal bone loss around implant has maintained a relative stable during follow-up periods.
Subject(s)
Humans , Follow-Up Studies , TransplantsABSTRACT
Ameloblastoma is the most common aggressive benign odontogenic tumor of the jaws. Because of slow growth and tendency to local invasion of bone and soft tissue, high rates of recurrence are common. The treatment for ameloblastoma is still controversial and poses some special problems in children. Because of growth of the jaw and the different incidence, prognosis of the tumor make the surgical consideration different from adults. Radical resection cause facial deformity, jaw abnormal movement and masticatory disturbance especially to child and adolescents. So conservative treatment as enucleation, curettage is acceptable initial treatment of ameloblastoma in children who can be followed up in a precise, detailed manner. This report describes a case of unilocular plexiform ameloblastoma treated by enucleation and curettage followed by marsupialization.
Subject(s)
Adolescent , Adult , Child , Humans , Ameloblastoma , Congenital Abnormalities , Curettage , Dyskinesias , Incidence , Jaw , Odontogenic Tumors , Prognosis , RecurrenceABSTRACT
Uni- or bilateral mandibular hypoplasia can be associated with various syndromes or is acquired after early traumatic or inflammatory disease in the temporomandibular joint(TMJ). Early treatment is necessary to avoid consequent impairment of midfacial growth. The standard treatment of these malformations consists of the application of bone grafts which can lead to unpredictable growth, but the new procedure of bone lengthening which was presented by McCarthy et al. represents a limited surgical intervention and therefore open up a new perspective of treatment, especially in younger children with severe deformities. Patients with hemifacial microsomia and facial asymmetry have a vertically short maxilla, a tilted occlusal plane, and a short mandible. A 14-years-old boy with facial asymmetry, who was fractured on both condyle and mandibular symphysis before 8 years ago, was treated by mandibular ramus lengthening, symphysial widening and surgically assisted rapid palatal expansion with corticotomy. After allowing 1 week for the healing of the periosteum, the distraction was performed at the rate of 0.5-1.0mm per day for 7 days on maxilla and 14 days on mandible. The device was maintained on maxilla and mandible for 12 weeks following distraction. The difference in ramus and mandibular transverse deficiency were corrected and facial asymmetry was improved with complex distraction osteogenesis.
Subject(s)
Child , Humans , Male , Bone Lengthening , Congenital Abnormalities , Dental Occlusion , Facial Asymmetry , Goldenhar Syndrome , Mandible , Maxilla , Osteogenesis, Distraction , Periosteum , TransplantsABSTRACT
Subject(s)
Humans , Diagnosis , Facial Asymmetry , Orthognathic Surgery , Osteotomy , Osteotomy, Le Fort , SkullABSTRACT