title: Post traumatic immediate GBR: alveolar ridge preservation after a comminuted fracture of the anterior maxilla.
abstract: Without a proper intervention, a crushed alveolar process fracture can cause significant dimensional changes on affected hard and soft tissue that lead to difficult circumstances for post traumatic bone augmentation and dental implant placement. We present herein the cases of immediate guided bone regeneration (GBR) for the maxillary anterior alveolar process with comminuted fracture. Shortly after the hospital visit, guided bone regeneration was conducted for three patients using only xenograft material and bone fragments from traumatic site, without an additional donor site. Resorbable collagen membrane was used on the bone graft site, and titanium mesh was also used if significant bone loss were expected. Radiographic evaluation 6 months after GBR confirmed that all three cases had sufficiently preserved alveolar bone which is clinically required for implant placement. Dental implant installation was carried out for two patients and no specific findings were noted in follow-up after the placement. In this method, additional operation sites for bone collection are not necessary and the number of surgical steps before implant placement can be reduced. Furthermore, this immediate intervention can effectively minimize the alveolar ridge shrinkage of anterior maxilla after injury.
authors.affiliation: Department of Oral & Maxillofacial Surgery, School of Dentistry, Clinical Research Institute of Chonbuk National University Hospital, Chonju, Korea.
authors.forename: Yongsoo
authors.initials: Y
authors.lastname: Kim
authors.forename: Dae Ho
authors.initials: DH
authors.lastname: Leem
mesh_terms: D000328:Adult; D000540:Alveolar Ridge Augmentation / Q000379:methods*; D001861:Bone Regeneration; D018786:Bone Substitutes / Q000627:therapeutic use; D003094:Collagen / Q000627:therapeutic use; D003758:Dental Implantation, Endosseous; D018460:Fractures, Comminuted / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008297:Male; D008440:Maxillary Fractures / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D008903:Minerals / Q000627:therapeutic use; D011862:Radiography, Panoramic; D013526:Surgical Mesh; D014025:Titanium; D014057:Tomography, X-Ray Computed; D016388:Tooth Loss / Q000000981:diagnostic imaging / Q000601:surgery*
chemical_list: C106416:Bio-Gide; C077540:Bio-Oss; D018786:Bone Substitutes; D008903:Minerals; D003094:Collagen; D014025:Titanium
keywords: alveolar bone augmentation; alveolar process injury; alveolar ridge preservation; dentoalveolar trauma; guided bone regeneration; immediate bone graft