Donor-site Morbidity after Retromolar Bone Harvesting Using a Standardised Press Fit Cylinder Protocol

Abstract

Precise fitting and immobilisation of bone transplants at the recipient site is of utmost importance for the healing process. With the help of the standardised Osseo Transfer System, the recipient site is adjusted to the graft, rather than vice versa as it is typically done. The aim of this study was to analyse donor-site morbidity after harvesting cylindrical bone grafts from the retromolar region using the Osseo Transfer System. The patient satisfaction with the surgical procedures was also evaluated. All patients treated with this standardised reconstruction method between 2006 and 2013 at the Department of Cranio-Maxillofacial Surgery, University Hospital Giessen, were included in this study. Complications were recorded and evaluated. Bone graft success and patient satisfaction were documented with a questionnaire, and then confirmed by clinical and radiological follow-up examinations. Fifty-four patients were treated and 64 harvested cylindrical autologous bone grafts were transplanted. In all cases, dental implants could be inserted after bone healing. One patient lost an implant, associated with failure of the bone graft. Six patients who were examined continued to show neurological disorders in locally limited areas. No complete or long-term damage of the inferior alveolar nerve occurred. More than 94% (n = 52) of the patients were ‘very satisfied’ or ‘satisfied’ with the results and would recommend this surgical treatment to other patients. The standardised Osseo Transfer was an effective treatment option for small and mid-sized alveolar ridge augmentations. A low donor-site morbidity rate and a high transplant success rate were verified. The Osseo Transfer System demonstrated to be a reliable surgical technique without major complications. We highly recommend this surgical augmentation procedure as a surgical treatment for local bone defects.

Immediate Autogenous Bone Transplantation Using a Novel Kinetic Bioactive Screw 3D Design as a Dental Implant

“…The accurate fitting and anchoring of bone grafts to the site are critical for the healing process. Standardized bone grafting matches the site to the graft and has been shown to be an effective treatment for small and medium-sized autogenous bone grafts with a low donor site morbidity and high graft success rates [1,18,19].…”

Randomized split‐mouth clinical trial comparing osteoblastic activity and osteogenic potential of autogenous particle harvesting during implant surgery without irrigation and with irrigation

“…9 However, despite the great similarity to bone in terms of crystalline structure and chemical composition of these biomaterials, they only have osteoconductive and not osteoinductive properties, so that autologous bone remains the gold standard for maxillary bone regeneration 10,11 ; additionally, the presence of proteins such as bone morphogenetic proteins, minerals, and vital bone cells make it the treatment of choice even over allografts and xenografts, mainly because of its biocompatibility and, above all, its osteoconductive, osteoinductive, and osteogenic properties. 12 In clinical situations where a large amount of bone is required to repair a maxillary or mandibular bone defect, autologous bone block is obtained from extraoral donor regions such as the iliac crest, tibial metaphysis, or the cranial calotte. 13 However, in medium-sized bone defects, we can obtain a good amount of autologous bone block on an intraoral level (symphysis, ascending mandibular ramus, maxillary tuberosity, coronoid process, maxillomallar or zygomatic buttress, and bone exostoses such as torus) in a more conservative manner.…”

Use of buccal fat pad-derived stem cells cultured on bioceramics for repair of critical-sized mandibular defects in healthy and osteoporotic rats

“…To reconstruct CSBDs, allografts, xenografts, and alloplastic biomaterials are usually ineffective, and conventional treatment is based on large volumes of bone from autografts (cortical, medullary, or corticomedullary), due to their biocompatibility and osteogenic properties [ 7 ]. Autografts may be of extraoral (skull, iliac crest, tibia, or rib) or intraoral (chin, anterior border of the mandibular ascending branch, maxillary tuberosity, and zygomatic flying buttress) origin [ 8 ].…”