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      Biologically oriented preparation technique (BOPT) for implant-supported fixed prostheses

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          Abstract

          A patient of 58 years of age without medical problems came to the clinic due to missing teeth in the upper posterior region and to change the partial fixed prosthesis in the upper anterior area. Proposed treatment: surgical phase of three conical shape tapering implants with prosthetic platform in occlusal direction with mechanize collar tissue level with fixtures to place implant-supported metal-ceramic restorations. In the anterior area, a zirconium oxide fixed partial prosthesis was vertical preparation of the tooth’s. When preparing teeth to receive fixed prostheses, the definition and shape of finish lines has been a subject of endless discussion, modification, and change ever since the beginnings of restorative prosthetic dentistry. The BOPT technique (biologically oriented preparation technique) was first described in the context of tooth-supported restorations but has recently been applied to dental implants with the aim of ensuring healthy peri-implant tissue and creating the possibility of modeling the peri-implant sulcus by modifying prosthetic emergence profiles. Vertical preparation of teeth and abutments without finish line on implants is a technique which was found to be adequate for ensuring the remodeling and stability of peri-implant tissues.

          Key words:Peri-implant tissue health, shoulderless abutments.

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          Most cited references 13

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          Systematic review of the survival rate and the incidence of biological, technical, and aesthetic complications of single crowns on implants reported in longitudinal studies with a mean follow-up of 5 years.

          To assess the 5-year survival of implant-supported single crowns (SCs) and to describe the incidence of biological, technical, and aesthetic complications. The focused question was: What is the survival rate of implants supporting single crowns and implant-supported crowns with a mean follow-up of 5 years and to which extent do biological, technical, and aesthetic complications occur?
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            DEALING WITH DENTAL IMPLANT FAILURES

             Liran Levin (2008)
            An implant-supported restoration offers a predictable treatment for tooth replacement. Reported success rates for dental implants are high. Nevertheless, failures that mandate immediate implant removal do occur. The consequences of implant removal jeopardize the clinician's efforts to accomplish satisfactory function and esthetics. For the patient, this usually involves further cost and additional procedures. The aim of this paper is to describe different methods and treatment modalities to deal with dental implant failure. The main topics for discussion include identifying the failing implant, implants replacing failed implants at the exact site, and the use of other restorative options. When an implant fails, a tailor made treatment plan should be provided to each patient according to all relevant variables. Patients should be informed regarding all possible treatment modalities following implant failure and give their consent to the most appropriate treatment option for them.
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              Biologically oriented preparation technique (BOPT): a new approach for prosthetic restoration of periodontically healthy teeth.

              Tooth preparations for fixed prosthetic restorations can be done in different ways, basically of two kinds: preparation with a defined margin and the so-called vertical preparation or feather edge. The latter was originally used for prosthetics on teeth treated with resective surgery for periodontal disease. In this article, the author presents a prosthetic technique for periodontally healthy teeth using feather edge preparation in a flapless approach in both esthetic and posterior areas with ceramometal and zirconia restorations, achieving high quality clinical and esthetic results in terms of soft tissue stability at the prosthetic/tissue interface, both in the short and in the long term (clinical follow-up up to fifteen years). Moreover, the BOPT technique, if compared to other preparation techniques (chamfer, shoulder, etc), is simpler and faster when in preparation impression taking, temporary crowns' relining and creating the crowns' profiles up to the final prosthetic restoration.
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                Author and article information

                Journal
                J Clin Exp Dent
                J Clin Exp Dent
                Medicina Oral S.L.
                Journal of Clinical and Experimental Dentistry
                Medicina Oral S.L.
                1989-5488
                1 April 2017
                April 2017
                : 9
                : 4
                : e603-e607
                Affiliations
                [1 ]DMD, PhD, MD, Adjunct Professor, Department of Oral Medicine, Faculty of Medicine and Dentistry, Valencia University, Spain
                [2 ]DDS, Chairman of prosthodontics, Departament of Buccofacial Prosthetics, Faculty of Dentistry, Complutense, Madrid University, Spain
                [3 ]DMD, PhD, MD, Adjunct Professor, Department of Oral Medicine, Faculty of Medicine and Dentistry, Valencia University , Spain
                [4 ]DMD, PhD, Associate Professor, Department of Oral Medicine, Faculty of Medicine and Dentistry, Valencia University, Spain
                Author notes
                Department of Oral Medicine (Prosthodontic and Oclussion Teaching Unit) Faculty of Medicine and Dentistry University of Valencia, Spain C/ Gascó Oliag, 1, 46021 Valencia , E-mail: m.fernanda.sola@ 123456uv.es

                Conflict of interest statement:The authors have declared that no conflict of interest exist.

                Article
                53703
                10.4317/jced.53703
                5410687
                Copyright: © 2017 Medicina Oral S.L.

                This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                Categories
                Case Report
                Prosthetic Dentistry

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