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Journal of Prosthodontics : Official... Feb 2012Precision attachments have been used for many years to retain removable partial dentures (RPDs). Common reasons for a failed attachment-retained RPD are fracture of the...
Precision attachments have been used for many years to retain removable partial dentures (RPDs). Common reasons for a failed attachment-retained RPD are fracture of the framework, fracture of the roots or teeth, and irretrievable decrease of retention. When an RPD framework major connector has been fractured, it should be remade. This article describes a technique to remake a fractured mandibular RPD using cast round profile attachment analogs without the need for replacement of the fixed partial denture.
Topics: Denture Design; Denture Precision Attachment; Denture Retention; Denture, Partial, Fixed; Denture, Partial, Removable; Humans
PubMed: 22380647
DOI: 10.1111/j.1532-849X.2011.00818.x -
Dental Update 1982
Topics: Denture Design; Denture Precision Attachment; Denture, Partial, Removable; Humans; Male
PubMed: 6756997
DOI: No ID Found -
The Bulletin of Tokyo Dental College Dec 2019The need for flexible thermoplastic denture base materials has increased due to patient demand for better esthetic outcomes. Designs aimed at improving esthetic outcomes...
The need for flexible thermoplastic denture base materials has increased due to patient demand for better esthetic outcomes. Designs aimed at improving esthetic outcomes can cause difficulties for prosthodontists, however, from the viewpoint of function and maintenance. Therefore, the purpose of this study was to investigate vertical displacement in unilateral extension base denture models, comparing that obtained by flexible removable dentures with that by conventional metal clasp dentures. Models of unilateral extension base flexible removable dentures for mandibular defects were prepared. Periodontal ligament and jaw mucosa were simulated using a silicone impression material. Four types of flexible removable denture, with or without a metal rest, and two metal clasp dentures made of acrylic resin as a conventional design were used as dental prostheses. The amount of vertical displacement in the defect areas was measured under a load of 50 N at the first and second molars. Among the 6 types of dentures investigated, the amount of vertical displacement was greater with flexible removable dentures than with metal clasp dentures. This vertical displacement tended to decrease significantly, however, with the use of a metal rest with the flexible removable dentures. Esteshot with a metal rest, in particular, showed the smallest amount of displacement in the flexible removable dentures (first molar, 0.265±0.007 mm; second molar, 0.423±0.008 mm). These results indicate the importance of the application of rests in unilateral extension base flexible removable dentures. It may be useful to employ a metal rest in conjunction with a flexible removable denture to reduce load on the underlying mucosa, as is done with conventional partial dentures.
Topics: Denture Bases; Denture Design; Denture, Partial; Denture, Partial, Removable; Esthetics, Dental; Humans
PubMed: 31761891
DOI: 10.2209/tdcpublication.2018-0068 -
Nederlands Tijdschrift Voor... Jun 2003Since twenty years adhesive dentistry plays a certain role in the design of removable partial dentures. With the use of adhesive attachments the esthetics and retention... (Review)
Review
Since twenty years adhesive dentistry plays a certain role in the design of removable partial dentures. With the use of adhesive attachments the esthetics and retention of a removable partial denture can be improved. To apply these attachments successfully the contour of a sound abutment has to be corrected by grinding to provide retention and resistance. The procedures for constructing removable partial dentures with adhesive attachments are described. It is recommended to apply adhesive attachments in the general dental practice.
Topics: Adhesives; Dental Abutments; Denture Design; Denture Precision Attachment; Denture Retention; Denture, Partial, Removable; Esthetics, Dental; Humans
PubMed: 12852064
DOI: No ID Found -
The International Journal of... 2010Denture survival, or the time between the date of a denture's insertion and the date of its renewal for any clinical reason, was assessed in this retrospective study on...
PURPOSE
Denture survival, or the time between the date of a denture's insertion and the date of its renewal for any clinical reason, was assessed in this retrospective study on 353 complete dentures. The procedures required to prolong the useful time of the study sample-relines, repair of denture base fractures, or replacement of lost artificial teeth-were also evaluated.
MATERIALS AND METHODS
All dentures were examined by the authors and were constructed according to a standardized protocol by full-time staff members of the Department of Prosthodontics, Regensburg University Medical Center, between 1984 and 2009. Two subgroups were assigned: 94 patients had one complete denture in each arch (group 1), while 165 patients had one complete denture in either the mandible or the maxilla (group 2).
RESULTS
In group 1, the median (75th, 90th percentile) survival time of dentures was 15.8 years in the mandible (15.7, 7.0; 95% confidence interval [CI]: 15.5 to 16.1) and 19.4 years in the maxilla (15.8, 8.7; 95% CI: 14.0 to 24.7). Reline procedures were required most frequently in the maxilla, while 5-year event-free rates were 69.7% for the maxilla and 80.5% for the mandible. Denture base fractures were reported in 5.8% of patients in group 1 and tended to occur more frequently (median: 15.2%) if patients had only one denture (group 2, n = 25 [maxilla: n = 23, mandible: n = 2]). Loss of artificial teeth was a rare complication and found in only 5.8% of patients in group 1 and 10.9% of patients in group 2. During the first 5 years of service, more than 95% of patients in group 1 and 90% of patients in group 2 were "event free" with regard to loss of artificial teeth.
CONCLUSIONS
Long-term functional service of complete dentures requires a high number of maintenance procedures, and there is a greater need for interventions in patients wearing only one complete denture (group 2).
Topics: Aged; Bite Force; Dental Restoration Failure; Denture Rebasing; Denture Repair; Denture, Complete; Denture, Complete, Lower; Denture, Complete, Upper; Female; Humans; Kaplan-Meier Estimate; Male; Middle Aged; Proportional Hazards Models; Retrospective Studies
PubMed: 20859555
DOI: No ID Found -
Dental Digest May 1965
Topics: Dental Impression Technique; Denture Retention; Denture, Complete, Lower; Dentures; Humans; Social Behavior
PubMed: 14281166
DOI: No ID Found -
Journal of the California Dental... Jul 2003The reduction in partial edentulism that has occurred due to successful preventive procedures and the predictable use of osseointegrated implants has reduced the need...
The reduction in partial edentulism that has occurred due to successful preventive procedures and the predictable use of osseointegrated implants has reduced the need for removable partial dentures. However, for a variety of reasons, many patients can continue to benefit from partial denture therapy; and these patients deserve the best esthetic result possible. The primary esthetic objection to removable partial denture therapy is the unsightly display of the clasp assemblies. This article describes three strategies that can be used by the discriminating clinician to eliminate the display of the clasp assembly and provide an esthetic and functional removable prosthesis.
Topics: Dental Clasps; Denture Design; Denture Precision Attachment; Denture Retention; Denture, Partial, Removable; Esthetics, Dental; Humans
PubMed: 12934629
DOI: No ID Found -
Dental Laboratory Review Mar 1983
Topics: Denture Design; Denture, Complete; Humans; Jaw; Mandible; Maxilla
PubMed: 6352344
DOI: No ID Found -
The International Journal of... 1992It has been a clinical impression that the retromylohyoid extension in complete mandibular dentures contributes to stability. This hypothesis was tested in six...
It has been a clinical impression that the retromylohyoid extension in complete mandibular dentures contributes to stability. This hypothesis was tested in six individuals by means of cineradiography and placement of a metal marker in the mandible and dentures during chewing exercises, with and without the relevant denture extension. Analysis of tracings of the movements of the markers revealed that statistically significant differences existed between first and second chewing experiences. Movement in a horizontal plane around a vertical axis, however, was common to all dentures during all chewing. It is concluded that the retromylohyoid extension has a stabilizing effect on complete mandibular dentures.
Topics: Adult; Aged; Denture Design; Denture Retention; Denture, Complete, Lower; Female; Humans; Male; Middle Aged
PubMed: 1520441
DOI: No ID Found -
Journal of Esthetic and Restorative... 2001Patients requiring extensive replacement of teeth with removable prostheses are indeed esthetic orphans in many contemporary dental practices. Although the advent of...
UNLABELLED
Patients requiring extensive replacement of teeth with removable prostheses are indeed esthetic orphans in many contemporary dental practices. Although the advent of successful osseointegration has dramatically reduced the need for removable prostheses, there are still many patients who for health, anatomic, psychological, or financial reasons are not candidates for implants. These patients deserve the same level of esthetic restorative dentistry as those who are restored with fixed prostheses. Clearly, the restorative dentist has the greatest flexibility from an esthetic standpoint with complete dentures. Soft and hard tissues can be replaced with contemporary characterized denture-base materials, and a truly infinite variety of tooth forms, shades, and arrangements can be used to meet the expectations of the most demanding patient. For partially edentulous patients, the major problem is designing a removable partial denture that avoids the unsightly display associated with conventional clasp assemblies. There are strategies available to accomplish this effectively while establishing an environment for optimal periodontal health, and to minimize destructive stresses on the abutment teeth.
CLINICAL SIGNIFICANCE
This article discusses the procedures essential for providing an upscale, quality esthetic service with removable prostheses. Effective strategies to eliminate unsightly clasp assemblies with removable partial dentures are described.
Topics: Dental Abutments; Dental Clasps; Dental Materials; Denture Bases; Denture Design; Denture Precision Attachment; Denture Retention; Denture, Complete; Denture, Partial, Removable; Esthetics, Dental; Humans; Periodontal Diseases; Tooth, Artificial
PubMed: 11572508
DOI: 10.1111/j.1708-8240.2001.tb00270.x