Abstract
BackgroundOnlay bone grafting techniques have some problems related to the limited volume of autogenous grafted bone and need for surgery to remove bone fixing screws. Here, we report a case of horizontal alveolar ridge atrophy following resection of a maxillary bone cyst, in which autogenous onlay bone grafting with interconnected porous hydroxyapatite ceramics (IP-CHA) and bioresorbable poly-L-lactic/polyglycolic acid (PLLA-PGA) screws was utilized.Case presentationA 51-year-old man had aesthetic complications related to alveolar atrophy following maxillary bone cyst extraction. We performed onlay grafting for aesthetic alveolar bone recovery using IP-CHA to provide adequate horizontal bone volume and PLLA-PGA screws for bone fixing to avoid later damage to host bone during surgical removal. During the operation, an autogenous cortical bone block was collected from the ramus mandibular and fixed to the alveolar ridge with PLLA-PGA screws, then the gap between the bone block and recipient bone was filled with a granular type of IP-CHA. Post-surgery orthopantomograph and CT scan findings showed no abnormal resorption of the grafted bone, and increased radiopacity, which indicated new bone formation in the area implanted with IP-CHA.ConclusionOur results show that IP-CHA and resorbable PLLA-PGA screws are useful materials for autogenous onlay bone grafting.
Highlights
Onlay bone grafting techniques have some problems related to the limited volume of autogenous grafted bone and need for surgery to remove bone fixing screws
Our results show that IP-CHA and resorbable PLLA-polyglycolic acid (PGA) screws are useful materials for autogenous onlay bone grafting
IP-CHA granules consist of a porous sintered body made of hydroxyapatite ceramics and have a unique pore structure, they undergo extensive incorporation into host bone more rapidly than conventional interconnected porous hydroxyapatite ceramics (C-CHA) [5,6]
Summary
We successfully performed onlay autogenous bone grafting using IP-CHA and resorbable PLLA-PGA screws, which were shown to be useful materials. Clinical application of this technique may have advantages including minimizing the need for an additional surgical procedure. Consent Written informed consent was obtained from the patient for publication of this Case report and any accompanying images. Competing interests The authors declare that they have no competing interests. Authors’ contributions MT and SO performed surgery. KK, KO, and MT drafted the manuscript. TN and SF treated the patient and helped to draft the manuscript. NK conducted a review of literature and helped to draft the manuscript. All authors read and approved the final manuscript
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