Aesthetic recovery of alveolar atrophy following autogenous onlay bone grafting using interconnected porous hydroxyapatite ceramics (IP-CHA) and resorbable poly-L-lactic/polyglycolic acid screws: case report

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.

Application of interconnected porous hydroxyapatite ceramic block for onlay block bone grafting in implant treatment: A case report (Review)

“…In that case, we collected an autogenous bone block (10x8 mm) from the maxillary tuberosity to prepare a graft comprised of a mixture of IP-CHA and cortical bone (Table I). We have also previously reported a clinical case of horizontal alveolar ridge atrophy following resection of a maxillary bone cyst, in which autogenous onlay bone grafting with IP-CHA granules was successfully used for prosthetic treatment (25). In that case, an autogenous block bone (10x15 mm) was collected from the mandibular ramus, and a granular type of IP-CHA was applied to fill gaps between an autogenous bone block and host bone in order to restore bone volume (Table I).…”

Use of Transalveolar Sutures for Anchorage of a Resorbable Membrane During Horizontal Ridge Augmentation

“…Non‐resorbable fixation screws have an increased risk of exposure during healing, especially in areas subjected to masticatory function, leading to a high partial or complete bone graft failure . As an alternative, several techniques involving resorbable materials have been used for barrier fixation . Success has been reported for fixation by suturing the membrane to the adjacent periosteum .…”

“…For smaller areas of regeneration around teeth, cyanoacrylate adhesive has been suggested as an alternative tool for membrane fixation . Successful ridge augmentation has been reported using bioresorbable poly‐L‐lactic/polyglycolic acid (PLLA‐PGA) screws for membrane fixation …”

Complicações No Procedimento De Levantamento De Seio Maxilar: Um Estudo Dos Últimos Cinco Anos

“…A perda de elementos dentários e a pneumatização do seio maxilar repercutem em reabsorção alveolar, com possível deficiência em altura e espessura óssea. Esta atrofia pode também ser fruto da remoção de tumor ou cisto na região maxilar (KUBOZONO et al, 2014). Pacientes com insuficiência óssea alveolar representam um problema comum na reabilitação de edêntulos, tendo uma taxa de sucesso de implante menor que os demais pacientes (ESPOSITO et al, 2014;KANG et al, 2015).…”