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Randomized clinical study of injectable dextrin-based hydrogel as a carrier of a synthetic bone substitute
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Randomized clinical study of injectable dextrin-based hydrogel as a carrier of a synthetic bone substitute
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Journal Article
Randomized clinical study of injectable dextrin-based hydrogel as a carrier of a synthetic bone substitute
2023
Overview
Abstract ObjectivesThis study aimed to improve the performance and mode of administration of a glass-reinforced hydroxyapatite synthetic bone substitute, Bonelike by Biosckin® (BL®), by association with a dextrin-based hydrogel, DEXGEL, to achieve an injectable and moldable device named DEXGEL Bone.MethodsTwelve participants requiring pre-molar tooth extraction and implant placement were enrolled in this study. BL® granules (250–500 µm) were administered to 6 randomized participants whereas the other 6 received DEXGEL Bone. After 6 months, a bone biopsy of the grafted area was collected for histological and histomorphometric evaluation, prior to implant placement. The performance of DEXGEL Bone and BL® treatments on alveolar preservation were further analyzed by computed tomography and Hounsfield density analysis. Primary implant stability was analyzed by implant stability coefficient technique.ResultsThe healing of defects was free of any local or systemic complications. Both treatments showed good osseointegration with no signs of adverse reaction. DEXGEL Bone exhibited increased granule resorption (p = 0.029) accompanied by a tendency for more new bone ingrowth (although not statistically significant) compared to the BL® group. The addition of DEXGEL to BL® granules did not compromise bone volume or density, being even beneficial for implant primary stability (p = 0.017).ConclusionsThe hydrogel-reinforced biomaterial exhibited an easier handling, a better defect filling, and benefits in implant stability.Clinical relevanceThis study validates DEXGEL Bone safety and performance as an injectable carrier of granular bone substitutes for alveolar ridge preservation.Trial registrationEuropean Databank on Medical Devices (EUDAMED) No. CIV-PT-18–01-02,705; Registo Nacional de Estudos Clínicos, RNEC, No. 30122.
Publisher
Springer Nature B.V
