Acta Scientific Dental Sciences (ISSN: 2581-4893)

Case Report Volume 4 Issue 2

Guided Bone Regeneration and Guided Tissue Regeneration in Maxillary Aesthetic Zone - Reconstruction of Post-Traumatic Defect in A Single Procedure

Capobianco TTR1*, Yamashita C2 and Gorny Júnior CL3

1Specialist in Implant Dentistry, Specialist in Periodontics and Specialist in Endodontics; SOEPAR Educational Center, Herrero College, Brazil
2Doctor of Dentistry, FOUSP; Professor SOEPAR Educational Center, Professor Unicesumar, Brazil
3Master’s in Clinical Dentistry and Specialist in Implant Dentistry, Positivo University, Brazil

*Corresponding Author: Charanjeet Ahluwalia, Professor, Department of Pathology, VMMC and Safdarjung Hospital, Delhi, India.

Received: December 23, 2019; Published: January 30, 2020



  Vertical regeneration of resorbed alveolar ridges in aesthetic areas is a challenging procedure with several anatomic limitations. To allow immediate implant placement with less interference in tissue aesthetics, detailed planning is needed. A few methods of bone reconstruction have been suggested to be performed simultaneous with implant placement, for example given in fresh extraction sockets, guided bone regeneration ensures bone formation in the peri-implant spaces and function as a framework for tissue remodeling. Combining the use of a resorbable membrane as a barrier during tissue regeneration, dehiscences are prevented, and buccal bone resorption is reduced more effectively. In the present case report, a male patient presented with severe root exposure in the anterior region of the maxilla due to post-traumatic resorption of the buccal plate. The study aimed to demonstrate the use a technique of association between pedicled roll flap and interpositional bone graft with the objective of making the bone resorption region uniform in a single procedure and improving the aesthetic results. After opening an intrasulcular flap with care taken to preserve the keratinized mucosa on both sides of the incision, a full-thickness mucoperiosteal flap was reflected on the buccal side, and a pouch was created on the palatal side to place the membrane, allowing the performance of an atraumatic extraction. Using the interproximal bone plates as depth reference and the adjacent teeth for three-dimensional positioning, the implant was inserted with apical anchorage. For the collection of the tissue graft, a straight palatal incision was made to remove the subepithelial tissue, which was divided to harvest a connective tissue graft. To overcome treatment limitations, such as poor blood supply, it was chosen to maintain the connective tissue pedicled, and a subperiosteal soft tissue pocket was created at the deformed ridge interface. The combination of two types of grafts was applied, autogenous particulate bone graft associated with xenogenous bone graft (BioOss®) covered with resorbable collagen membrane (BioGide®). Allied to this technique, aiming to improve tissue regeneration of the aesthetic zone and soft tissue volume with keratinized tissue gain, the subepithelial connective tissue flap was then reflected and rotated, traversed through the pouch to cover the defect and increase the soft tissue thickness. The results demonstrated an increase in bone thickness, confirming the efficacy of guided bone regeneration using composite bone graft (autogenous bone graft and anorganic bovine bone graft [BioOss®] along with resorbable collagen membrane [BioGide®]). A substantial gain in tissue thickness was also observed, showing the quality of local blood supply maintenance. This combined technique may mean a new approach to the use of the roll flap in association with interpositional grafting in order to reduce the number of surgical interventions and obtain more favorable aesthetic results.

Keywords: Reconstructive Surgical Procedures; Alveolar Ridge Augmentation; Guided Bone Regeneration; Guided Tissue Regeneration; Immediate Dental Implant Loading



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Citation: Capobianco TTR., et al. “Guided Bone Regeneration and Guided Tissue Regeneration in Maxillary Aesthetic Zone - Reconstruction of Post- Traumatic Defect in A Single Procedure”. Acta Scientific Dental Sciences 4.2 (2020): 120-125.


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