Treatment of Intrabony Defects Around Implants Using Different Graft Materials

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Treatment of Intrabony Defects Around Implants Using Different Graft Materials
S.H. CHOI1, H.I. MOON1, S.K. MOON1, C.S. KIM1, K.S. CHO1, Y.K. LEE1, and J.S. SHIM2, 1 Yonsei University, Seoul, South Korea, 2 Yonsei Unversity, Seoul, South Korea
March 2004
Clinical Implant Studies
Objectives: The purpose of this study was to evaluate and compare the healing of the Demineralized Bone Matrix(GrafTon¨˘??), Porous beta-phase tricalcium phosphate particles (b- TCP) (Cerasorb¨˘??), and a newly developed non-crystalline calcium phosphate glass around SLA surface dental implant(Implantium¨˘??). Materials & Methods: Two SLA surface implants were placed on each side of the mandible. A standardized 3-wall intrabony defect(3mm buccolingual ¨?z 3mm apicocoronal ¨?z 5mm mesiodistal) was created at the mesial of the each implant site. Defects were then grafted with either xDBM(GrafTon¨˘??), Cerasorb¨˘??, non-crystalline calcium phosphate glass or not filled(control). Experimental animals were sacrificed 8 weeks later. Results: Similar findings were found in all treatment groups with no evidence of acute inflammatory reaction around any of the implants. Residual graft particles adjacent to the implant can be seen in all the groups. Grafted particles in the intrabony defects were surrounded with connective tissue. Bone defect was comletely filled with connective tissue in the control group. Intrabony defects around the implants treated with b-TCP, xDBM showed a little amount of new bone formation. All the treatment groups in this study showed no histologic evidence bone-to-implant contact. The xDBM(GrafTon¨˘??), Cerasorb¨˘??, and calcium phosphate glass in this study were considered to be inert and well tolerated. Conclusions: Intrabony defects around the implants treated with b-TCP, xDBM showed a little amount of new bone formation. However, there was no beneficial effects to osseointegration in the intrabony defects around implants using these grafting materials. Supported by the Korea Ministry of Health and Welfare, Grant No. 03-PJ1-PG1-CH08-0001.