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      Sandwich osteotomy of the atrophic posterior mandible prior to implant placement

      case-report

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          Abstract

          Key Clinical Message

          The continuing resorption of the alveolar ridge will eventually result in insufficient bone height superior to the IAN, making dental implant placement impossible. The augmentation procedure above the IAN in terms of height provides sufficient bone for implant placement and allows long-term successful restoration of missing teeth with implant-supported prosthesis.

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          Most cited references22

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          The continuing reduction of the residual alveolar ridges in complete denture wearers: a mixed-longitudinal study covering 25 years.

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            Vertical alveolar ridge augmentation by means of a titanium mesh and autogenous bone grafts.

            The aim of this study is to evaluate a surgical protocol for vertical ridge augmentation in the maxilla and mandible using autogenous onlay bone graft associated with a titanium mesh. A group of 18 partially edentulous patients, presenting the need for vertical bone augmentation of at least 4 mm, were treated before implant placement. During the first surgery, an autogenous bone graft was harvested from either the mandibular ramus or the mental symphysis and secured by means of titanium screws. Particulate bone was added and a titanium micro-mesh was used to stabilize and protect the graft. After a mean interval of 4.6 months, meshes and screws were removed and 37 endosseous implants were successfully placed. The desired bone gain was reached in all patients. Mean vertical bone augmentation obtained was 4.8 mm (range 4-7 mm). No major complications were recorded at recipient or donor sites. Abutment connection was carried out 2-3 months after implant placement. No implant was lost. Clinical parameters and probing depth, after prosthetic reconstruction, demonstrated the presence of a healthy peri-implant mucosa. The preliminary results suggest that, by using the presented technique, patients can be successfully rehabilitated by means of implant-supported prosthesis 6-7 months after the first surgery, even in case of severely atrophied maxilla.
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              The TIME technique: a new method for localized alveolar ridge augmentation prior to placement of dental implants.

              Sufficient bone volume is still considered the most important prerequisite for the osseointegration of dental implants. The TIME technique (autogenous bone grafting combined with stabilization using a titanium mesh) for localized alveolar ridge augmentation was evaluated in 20 patients who had insufficient bone volumes for the primary placement of dental implants. Different clinical recordings were evaluated at TIME stage 1 (augmentation surgery) and at TIME stage 2 (reentry surgery with mesh removal and simultaneous dental implant placement). In most patients, single- or extended-tooth gaps (up to four units) were augmented with autogenous bone harvested from the chin or retromolar area. With the exception of temporary disturbances of tooth sensibility, no morbidity at the donor sites was observed. In one patient, the stabilizing titanium micromesh had to be removed prematurely because of graft infection. At the reentry surgery, the bone grafts were found to be completely incorporated in 75% of the patients. In 15% of the patients, only minimal graft resorption was observed (less than 10% of the graft volume). Subsequently, 28 implants could be placed in 19 patients. The stabilizing titanium mesh was best suited for vertical ridge augmentations. Another feature of the mesh was the excellent tissue compatibility, with little clinical or histologic inflammation, even when the mesh had become exposed.
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                Author and article information

                Journal
                Clin Case Rep
                Clin Case Rep
                ccr3
                Clinical Case Reports
                John Wiley & Sons, Ltd (Chichester, UK )
                2050-0904
                2050-0904
                July 2015
                05 June 2015
                : 3
                : 7
                : 610-614
                Affiliations
                [1 ]Departament of Periodontology, Albanian University and Private Practice Tirana, Albania
                [2 ]Albanian University, Brianza Dent Tirane, Albania
                [3 ]Nostra Signora del Buon Consiglio, Brianza Dent Tirane, Albania
                Author notes
                Correspondence Luan Mavriqi, Rr: B. Biba/P. Hodaj/Ap. A9 Tirane, 1001 Albania. Tel: 00355682032972; Fax: 003552400652;, E-mail: luanmavriqi@ 123456yahoo.com

                Funding Information No sources of funding were declared for this study

                Article
                10.1002/ccr3.261
                4527806
                26273452
                c81032b4-cd84-440f-99e7-0ec8bc5f82fc
                © 2015 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.

                This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

                History
                : 11 November 2014
                : 17 January 2015
                : 20 February 2015
                Categories
                Case Reports

                atrophic mandible,bone graft,implant placement,sandwich osteotomy

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