Journal of Oral Implantology August 2013 - (Page 455)

CLINICAL Efficacy of Guided Bone Regeneration Using Composite Bone Graft and Resorbable Collagen Membrane in Seibert’s Class I Ridge Defects: Radiological Evaluation Pushparajan Saravanan, MDS* T. Ramakrishnan, MDS N. Ambalavanan, MDS Pamela Emmadi, MDS Thomas Libby John, MDS The purpose of the study was to evaluate radiologically the efficacy of guided bone regeneration using composite bone graft (autogenous bone graft and anorganic bovine bone graft [Bio-Oss]) along with resorbable collagen membrane (BioMend Extend) in the augmentation of Seibert’s class I ridge defects in maxilla. Bone width was evaluated using computerized tomography at day 0 and at day 180 at 2 mm, 4 mm, and 6 mm from the crest. There was a statistically significant increase in bone width between day 0 and day 180 at 2 mm, 4 mm, and 6 mm from the crest. The results of the study demonstrated an increase in bone width of Seibert’s class I ridge defects in the maxilla of the study patients. Key Words: CT scan, Ebner grafter, guided bone regeneration INTRODUCTION D uring the past decade, the use of osseointegrated implants has become an increasingly important treatment modality for the replacement of missing teeth in fully and partially edentulous patients.1 However, in patients with advanced atrophy of the alveolar process, especially in the maxilla, implant treatment is sometimes difficult to perform. A sufficient volume of healthy jawbone should be present at potential implant recipient sites to expect a predictable long-term prognosis for such implants. Resorption after tooth loss has been shown to follow a predictable pattern; the labial aspect of the alveolar crest is the principal site of resorption, which first reduces in width and later in height of Department of Oral Pathology & Oral Medicine & Periodontology, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia. *Corresponding author, e-mail: DOI: 10.1563/AAID-JOI-D-10-00211 the alveolar bone.2 Alveolar bone is resorbed after tooth extraction or avulsion, most rapidly during the initial years. Nontraumatic loss of anterior maxillary teeth is followed by a progressive loss of bone, mainly from the labial side. The magnitude of bone loss is estimated to be 40%–60% during the first 3 years following tooth loss and then decreases to a 0.25%–0.5% annual loss rate thereafter.3 The cause of resorption of alveolar bone after tooth loss has been assumed to be disuse atrophy, decreased blood supply, localized inflammation, or nonfitting prosthesis pressure.4 The use of membranes is a controversial issue in implantology, and their use is certainly very technique sensitive.5 Nevertheless, good results with augmentation procedures using membranes have been presented.6 BioMend Extend absorbable collagen membrane is a compressed, nonfriable matrix fabricated from collagen-derived bovine deep flexor tendons.7 Bovine tendon is known to be one of the purest sources of type I collagen that can be readily obtained and Journal of Oral Implantology 455

Table of Contents for the Digital Edition of Journal of Oral Implantology August 2013

Literary Responsibility—Everyone Has a Role to Play
Rehabilitation of Surgically Relocated Integrated Dental Implants With and Without Bone Morphogenesis Protein-2
Marginal Fit of Implant-Supported All-Ceramic Zirconia Frameworks
Influence of the Implant Diameter With Different Sizes of Hexagon: Analysis by 3-Dimensional Finite Element Method
Autologous Dental Pulp Stem Cells in Regeneration of Defect Created in Canine Periodontal Tissue
Histologic and Biomechanical Evaluation of 2 Resorbable-Blasting Media Implant Surfaces at Early Implantation Times
Efficacy of Guided Bone Regeneration Using Composite Bone Graft and Resorbable Collagen Membrane in Seibert’s Class I Ridge Defects: Radiological Evaluation
Minimal Iliac Bone Harvesting in Sinus Lift Surgery
Functional Load in Oblique Bicortical Implants: Parasinusal Implants and Palatine Implants
Ultrasonic Oscillations for Conservative Retrieval of a Rare Fracture of Implant Healing Abutment
Craniofacial Implant-Retained Auricular Prosthesis: A Case Report
Gingival Conditioning in an Implant-Supported Prosthesis: A Clinical Report
An Early Loaded Implant-Supported Mandibular Complete Arch Fixed Prosthesis in a Young Completely Edentulous Patient: A Case Report
Computer Guided Surgery for Implant Placement and Dental Rehabilitation in a Patient Undergoing Sub-Total Mandibulectomy and Microvascular Free Flap Reconstruction
Guided Bone Regeneration for Socket Preservation in Molar Extraction Sites: Histomorphometric and 3D Computerized Tomography Analysis
Osseointegration of Dental Implants and Osteonecrosis of the Jaw in Patients Treated With Bisphosphonate Therapy: A Systematic Review
Review of Current Literature

Journal of Oral Implantology August 2013