Alternative fixation system for implant-retained overdenture: case report

Mariana Lima Da Costa Valente,Denise Tornavoi De Castro,Frank Lucarini Bueno,Andréa Cândido Dos Reis,Geyson Galo Da Silva,Ana Beatriz Vilela Teixeira

doi:10.1590/1981-86372019000513649

Mariana Lima Da Costa Valente, Denise Tornavoi De Castro + Show 4 more

Open Access

https://doi.org/10.1590/1981-86372019000513649

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Abstract

ABSTRACT The aim of this case report was to describe a prosthetic rehabilitation associated with an alternative model of polymer capsule for fixation system of implant-retained overdentures. Patient sought treatment at the clinic of School of Dentistry of Ribeirão Preto, due to lack of retention of their conventional total superior prostheses and inferior overdenture. The initial complaint was clinicallyconfirmed by altered intermaxillary relationships and severe reabsorption of the maxillary crest. In order to restore the function and improve its quality of life, it was proposed a prosthetic solution including implant fixed prosthesis to maxilla and a mandibular overdenture, with ball-type attachments associated with an alternative model of polymer capsule. This treatment was proposed inorder to reestablish the intermaxillary relationships and adequate occlusion, maintain retention and stability of the prosthesis. At the end of treatment and during a one-year follow-up of the case, the patient reported satisfaction and significant improvement in quality of life.

Highlights

The success of oral rehabilitation with implants requires planning the case with consideration of the stomatognathic system as a whole, in order to promote favorable biomechanics, masticatory efficiency, implant longevity, and aesthetics
Retention and stability characteristics are provided by the implants through the fixation system, classified as splinted, such as bar-type, and non-splinted, such as era®, magnetic and O-ring [4]
To manage the patient’s complaints, we proposed a plan for installation of four implants in the upper arch in the region of teeth 12, 14, 22 and 24, to support the fixed prosthesis, and simultaneously create a new overdenture with a conventional O-ring system

Summary

INTRODUCTION

The success of oral rehabilitation with implants requires planning the case with consideration of the stomatognathic system as a whole, in order to promote favorable biomechanics, masticatory efficiency, implant longevity, and aesthetics. Fixed prostheses are the models of choice for fully edentulous cases, patients with bone and systemic conditions are not always good candidates for this type of treatment In these cases, implant-retained overdentures are an effective alternative, as they significantly improve patient function and satisfaction [1,2,3]. Prosthesis retention may be one of the most important requirements to be achieved during treatment of the edentulous patient, due to its substantial effect on function and quality of life This case report describes the replacement of a conventional maxillary total prostheses by a fixed prosthesis, and the creation of a new mandibular overdenture using a Teflon® polymer capsule fixation system (patent BR102016028989) [16], aiming to satisfy the patient regarding improvement in retention and stability of both prostheses. Conditions, mandibular overdenture adaptation and retention showed satisfactory results clinically analyzed and reported by the patient during the 6-months follow up

Findings

DISCUSSION

CONCLUSION