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Case Reports
. 2017 Apr 1;9(4):e603-e607.
doi: 10.4317/jced.53703. eCollection 2017 Apr.

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

Mª Fernanda Solá-Ruiz  1 , Jaime Del Rio Highsmith  2 , Carlos Labaig-Rueda  3 , Rubén Agustín-Panadero  4
Affiliations
Case Reports

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

Mª Fernanda Solá-Ruiz et al. J Clin Exp Dent. .

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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Conflict of interest statement

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

Figures

Figure 1
Figure 1
Pre-treatment image.
Figure 2
Figure 2
BOPT preparation of upper teeth and three implants.
Figure 3
Figure 3
Emergence of the acrylic resin provisional prosthesis.
Figure 4
Figure 4
Prosthetic platform design of PRAMA implant (A), abutment (B), restoration (C).
Figure 5
Figure 5
Occlusal image of keratinized gingival tissue around upper teeth and implants.
Figure 6
Figure 6
A) Occlusal image of keratinized mucosa with BOPT implant abutments in position of upper right first molar. B) Peri-implant mucosa adjacent to prosthesis in posterior area of the first quadrant 6 months after end of treatment.
Figure 7
Figure 7
A) Occlusal image of keratinized mucosa around implants with BOPT abutments in the posterior area of the second quadrant. B) Peri-implant mucosa adjacent to prosthesis in posterior area of the second quadrant 6 months after end of treatment.
Figure 8
Figure 8
Front view post-treatment.
See this image and copyright information in PMC

References

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