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:: Volume 6, Issue 6 (1-2012) ::
3 2012, 6(6): 0-0 Back to browse issues page
Efficacy of Using PDGF and Xenograft With or Without Collagen Membrane for Bone Regeneration Around Immediate Implants With Induced Dehiscence-Type Defects: A Microcomputed Tomographic Study in Dogs
Bann Ahmad Al-Hazmi , Khalid Saleh Al-Hamdan , Abdulaziz Al-Rasheed , Nadir Babay , Hom-Lay Wang , Khalid Al-Hezaimi *
Engineer Abdullah Bugshan Research Chair for Growth Factors and Bone Regeneration, College of Dentistry & Applied Biomedical Sciences, King Saud University, Riyadh, Saudi Arabia/Department of Periodontics and Community Dentistry, King Saud University
Abstract:   (3155 Views)

 Background: Use of collagen membrane (CM) with xenograft and recombinant human platelet-derived growth factor (rhPDGF) in guided bone regeneration (GBR) is debatable. The aim of this microcomputed tomographic experiment was to assess the efficacy of using PDGF and xenograft (with or without CM) for GBR around immediate implants with dehiscence defects.

 Methods: Ten beagle dogs underwent atraumatic bilateral second and fourth premolar extractions from both arches. A standardized dehiscence defect (6 × 3 mm) was created on the buccal bone and immediate implants were placed in distal sockets in each site. Animals were randomly divided into three groups: 1) group 1, xenograft with rhPDGF was placed and covered with CM 2) group 2, xenograft with rhPDGF was placed over the defects and 3) group 3, four immediate implants were associated with dehiscence (controls). After 16 weeks, animals were sacrificed and jaw segments were assessed for buccal bone thickness (BBT), buccal bone volume (BBV), vertical bone height (VBH), and bone-to-implant contact (BIC) using microcomputed tomography.

 Results: BBT was higher in group 2 (1.533 ± 0.89 mm) than group 1 (0.745 ± 0.322 mm) (P <0.001) and group 3 (0.257 ± 0.232 mm) (P <0.05). BBV was higher in group 2 (67.87 ± 19.83 mm3) than group 1 (42.47 ± 6.78 mm3) (P <0.05) and group 3 (19.12 ± 4.06 mm3) (P <0.001). VBH was higher in group 2 (6.36 ± 1.37 mm) than group 3 (0.00 ± 0.00 mm) (P <0.001). VBH was higher in group 1 (3.91 ± 2.68 mm) than group 3 (0.00 ± 0.00 mm) (P <0.05). BIC was higher in group 2 (67.25% ± 13.42%) than group 1 (36.25% ± 12.78%) (P <0.05) and group 3 (30.25% ± 7.27%) (P <0.01).

 Conclusion: GBR around immediate implants with dehiscence defects using PDGF and xenograft alone resulted in higher BBT, BBV, VBH, and BIC than when performed in combination with CM.


 Source: Journal of Periodentology

 Full Text

Keywords: Bone regeneration, dental implants, membranes, platelet-derived growth factor, x-ray microtomography
     
Type of Study: Research | Subject: Periodontology
Received: 2013/07/11 | Published: 2012/01/15
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Al-Hazmi B A, Al-Hamdan K S, Al-Rasheed A, Babay N, Wang H, Al-Hezaimi K. Efficacy of Using PDGF and Xenograft With or Without Collagen Membrane for Bone Regeneration Around Immediate Implants With Induced Dehiscence-Type Defects: A Microcomputed Tomographic Study in Dogs. 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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