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:: Volume 6, Issue 6 (1-2012) ::
3 2012, 6(6): 0-0 Back to browse issues page
Comparison Between a β-Tricalcium Phosphate and an Absorbable Collagen Sponge Carrier Technology for rhGDF-5–Stimulated Periodontal Wound Healing/Regeneration
Young-Taek Kim , Ulf M.E. Wikesjö , Ui-Won Jung , Jung-Seok Lee , Tae-Gyun Kim , Chong-Kwan Kim *
Department of Periodontology, Research Center for Orofacial Hard Tissue Regeneration (MRC), College of Dentistry, Yonsei University
Abstract:   (1675 Views)

 Background: The objective of this study is to compare a candidate β-tricalcium phosphate (β-TCP) carrier technology with the absorbable collagen sponge (ACS) benchmark to support recombinant human growth/differentiation factor-5 (rhGDF-5)–stimulated periodontal wound healing/regeneration.

 Methods: Routine, bilateral, critical-size (5-mm), 1-wall, intrabony periodontal defects were surgically created in the mandibular premolar region in 10 beagle dogs. Five animals received rhGDF-5/β-TCP and five animals received rhGDF-5/ACS, with a total of 20 μg rhGDF-5 per defect. The animals were euthanized for histologic and histometric analyses at 8 weeks postsurgery.

 Results: Both rhGDF-5/ACS and rhGDF-5/β-TCP stimulated the formation of functionally oriented periodontal ligament, cellular mixed fiber cementum, and woven/lamellar bone. Bone regeneration (height and area) was significantly greater for the rhGDF-5/β-TCP construct than for the rhGDF-5/ACS (3.26 ± 0.30 mm versus 2.22 ± 0.82 mm, P <0.01 and 10.45 ± 2.26 mm2 versus 5.62 ± 2.39 mm2, P <0.01, respectively). Cementum formation ranged from 3.83 ± 0.73 mm to 3.03 ± 1.18 mm without significant differences between groups. Root resorption/ankylosis was not observed.

 Conclusions: The β-TCP carrier technology significantly enhanced rhGDF-5–stimulated bone formation compared with the ACS benchmark in this discriminating periodontal defect model. The structural integrity of the β-TCP carrier, preventing compression while providing a framework for bone ingrowth, may account for the observed results.


 Source: Journal of Periodentology

 Full Text

Keywords: Animal models, beta-tricalcium phophate, growth differentiation factor 5, tissue engineering
     
Type of Study: Research | Subject: Periodontology
Received: 2013/07/15 | Published: 2012/01/15
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Kim Y, M.E. Wikesjö U, Jung U, Lee J, Kim T, Kim C. Comparison Between a β-Tricalcium Phosphate and an Absorbable Collagen Sponge Carrier Technology for rhGDF-5–Stimulated Periodontal Wound Healing/Regeneration. 3 2012; 6 (6)
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Volume 6, Issue 6 (1-2012) Back to browse issues page
جامعه اسلامی دندانپزشکان Islamic Dental Association of IRAN

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