Longitudinal Clinical Evaluation of Undercut Areas and Rest Seats of Abutment Teeth in Removable Partial Denture Treatment

In the case of losing many teeth and the residual teeth have short clinical crown, design of the denture may hybriddenture. Hybrid denture is a removable partial denture with metal frame which have retention in the form ofprecision attachment. In short clinical crown, placement of crowns and the use of traction can be a problem,because there is no or lack of retention. In the manufacture of hybrid denture with precision attachment retention,using abutment with short clinical crowns is contraindicated. But in some literatures mentioned that the rest of theclinical crown height of not less than 2 mm can still be used as an abutment, but the abutments must be modified,such as making a longer preparation towards cervical edge. In several studies and literature, it is mentioned that toimprove the retention of the crown, the axial wall of abutment must be 4-6°. This article is aimed to report the clinical success of using the hybrid denture on abutment teeth which have short clinical crowns in a patient woman

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Clinical Evaluation of the Effect of Implant-Supported and Implant Retained Distal Extension Removable Partial Dentures on the Supporting Structures

Open Access Macedonian Journal of Medical Sciences ◽

10.3889/oamjms.2021.6757 ◽

2021 ◽

Vol 9 (D) ◽

pp. 170-178

Author(s):

Ragia Saad Mohamed Kotb ◽

Ahmed Gamal Ahmed Hassan ◽

Emad Mohamed Tolba M. Agamy ◽

Gehan Fekry Mohamed

Keyword(s):

Class I ◽

Gingival Index ◽

Removable Partial Denture ◽

Partial Denture ◽

Second Molar ◽

Group I ◽

Probing Depth ◽

Significant Difference ◽

Abutment Teeth ◽

Supporting Structures

Objective: To evaluate and compare the effect of implant supported versus implant retained removable partial denture restoring Kennedy's class I cases on the supporting structures by measuring modified gingival index and probing depth for abutment teeth and implants. Subjects and Methods: Twelve patients; who had Kennedy class I mandibular partially edentulous ridge extending distal to the first or second premolar, were selected from the outpatient clinic, Prosthodontics Department, Faculty of Dentistry, Minia University. The patients were classified into two equal groups; according to the implant superstructures either dome shaped abutment or ball and socket attachment. Each Patient of both groups had two implants in second molar position (one in each side) and received removable partial denture of the same design. Patients were followed up for one year clinically. Group I: Six patients received RPD supported by dome shaped short abutments. Group II six patients received RPD retained by ball and socket attachments. Results: Results revealed that, there was no statistically significant difference between the two groups regarding modified gingival index and probing depth around the abutment teeth and implant abutment. Conclusion: The use of dome shaped abutment or ball and O-ring attachment have the same effect on gingival index and probing depth around natural abutments and implants in Kennedy class I mandibular situations.

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A Clinical Evaluation of Masticatory Function in Maxillary Bilateral Free-End-Saddle Removable Partial Denture in Changes of Mucosal Support Area.

THE JOURNAL OF THE STOMATOLOGICAL SOCIETY JAPAN ◽

10.5357/koubyou.66.382 ◽

1999 ◽

Vol 66 (4) ◽

pp. 382-396

Author(s):

Minoru Kimura

Keyword(s):

Clinical Evaluation ◽

Removable Partial Denture ◽

Partial Denture ◽

Masticatory Function ◽

Support Area

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Maxillary removable partial denture combined with O’ring attachment implant: a case report

Clinical and Laboratorial Research in Dentistry ◽

10.11606/issn.2357-8041.clrd.2017.129422 ◽

2018 ◽

Author(s):

Tiago Rebelo Costa ◽

Cláudio Akira Yamaguchi ◽

Alessandra Pucci Mantelli Galhardo ◽

Roberto Chaib Stegun ◽

Bruno Costa ◽

...

Keyword(s):

Case Report ◽

Oral Rehabilitation ◽

Removable Partial Denture ◽

Partial Denture ◽

Aesthetic Result ◽

First Choice ◽

Abutment Teeth ◽

Fixed Prosthesis ◽

The Aesthetic ◽

Systemic Health

Oral rehabilitation with free-end removable partial denture (RPD) is one of the major challenges in prosthodontic dentistry. The absence of a distal abutment produces undesirable RPD movement during masticatory function due to the high resilience of the residual ridge, which limits the denture efficiency and may damage the abutment teeth and bone over time. The advent of dental implants made possible to substitute the missing teeth with fixed implant-supported dentures as the first choice treatment to overcome such inconveniences. However, this indication may not be suitable for all patients due to financial, anatomical or systemic health conditions. Nevertheless it is possible to improve free extension RPD by using implants in the posterior edentulous ridge to achieve biological, biomechanical, physiological and social benefits. This article aims to present a case report on oral rehabilitation in which a RPD was made combined with an implant for posterior support in a sizeable edentulous ridge. The patient appreciated the retention improvement and the aesthetic result. The combination of a RPD with a posterior implant is an alternative treatment for cases in which implant-supported fixed prosthesis is not indicated, reducing the displacement and minimizing the limitations of the free-end devices.

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