Comparison of accuracy of soldering indices for fixed prostheses

Moon, Peter C.; Eshleman, J.R.; Douglas, H; Garrett, S.G.

doi:10.1016/0022-3913(78)90155-5

Cited by 22 publications

(11 citation statements)

References 2 publications

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“…It has been well established that casting errors may be corrected using various soldering techniques. [22][23][24] It has been consistent from early reports regarding implant frameworks that passive, accurate fits should be obtained between implant frameworks and implant restorative components. 25 It has also been well established that implant frameworks cannot be made to fit passively.…”

Section: Passively Fitting Implant Frameworkmentioning

confidence: 70%

“…Traditionally, implant frameworks were fabricated using the lost‐wax technique and casting noble alloys. It has been well established that casting errors may be corrected using various soldering techniques 22–24 . It has been consistent from early reports regarding implant frameworks that passive, accurate fits should be obtained between implant frameworks and implant restorative components 25 .…”

Section: Historical Perspectivementioning

confidence: 81%

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Concepts for Designing and Fabricating Metal Implant Frameworks for Hybrid Implant Prostheses

Drago

Howell

2012

Journal of Prosthodontics

117

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Edentulous patients have reported difficulties in managing complete dentures; they have also reported functional concerns and higher expectations regarding complete dentures than the dentists who have treated them. Some of the objectives of definitive fixed implant prosthodontic care include predictable, long-term prostheses, improved function, and maintenance of alveolar bone. One of the keys to long-term clinical success is the design and fabrication of metal frameworks that support implant prostheses. Multiple, diverse methods have been reported regarding framework design in implant prosthodontics. Original designs were developed empirically, without the benefit of laboratory testing. Prosthetic complications reported after occlusal loading included screw loosening, screw fracture, prosthesis fracture, crestal bone loss around implants, and implant loss. Numerous authors promoted accurately fitting frameworks; however, it has been noted that metal frameworks do not fit accurately. Passively fitting metal implant frameworks and implants have not been realized. Biologic consequences of ill-fitting frameworks were not well understood. Basic engineering principles were then incorporated into implant framework designs; however, laboratory testing was lacking. It has been reported that I- and L-beam designs were the best clinical option. With the advent of CAD/CAM protocols, milled titanium frameworks became quite popular in implant prosthodontics. The purpose of this article is to discuss current and past literature regarding implant-retained frameworks for full-arch, hybrid restorations. Benefits, limitations, and complications associated with this type of prosthesis will be reviewed. This discussion will include the relative inaccuracy of casting/implant fit and improved accuracy noted with CAD/CAM framework/implant fit; cantilever extensions relative to the A/P implant spread; and mechanical properties associated with implant frameworks including I- and L-beam designs. Guidelines will be proposed for use by clinicians and laboratory technicians in designing implant-retained frameworks.

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Section: Passively Fitting Implant Frameworkmentioning

confidence: 70%

Section: Historical Perspectivementioning

confidence: 81%

Concepts for Designing and Fabricating Metal Implant Frameworks for Hybrid Implant Prostheses

Drago

Howell

2012

Journal of Prosthodontics

117

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“…They concluded that ZOE bite registration paste was the most accurate indexing method, plaster and Duralay resin were less accurate, and sticky wax least accurate. Moon et al 59 found the least distortion with a plaster nonremoval technique, followed by Duralay resin. They also determined that assembled units should be invested as quickly as possible, and that thick resin indices (6 mm) were less accurate than thin (3 mm) ones.…”

Section: Evaluation Of Soldering Accuracymentioning

confidence: 98%

Soldering in Prosthodontics-An Overview, Part I

Byrne¹

2011

Journal of Prosthodontics

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The fit of fixed multiunit dental prostheses (FDP), traditionally termed fixed partial dentures (FPDs), is an ongoing problem. Poorly fitting restorations may hasten mechanical failure, due to abutment caries or screw failure. Soldering and welding play an important role in trying to overcome misfit of fixed multiunit prostheses. The term FPD will be used to denote multiunit fixed dental prostheses in this review. This is the first of a series of articles that review the state of the art and science of soldering and welding in relation to the fit of cemented or screw-retained multiunit prostheses. A comprehensive archive of background information and scientific findings is presented. Texts in dental materials and prosthodontics were reviewed. Scientific data were drawn from the numerous laboratory studies up to and including 2009. The background, theory, terminology, and working principles, along with the applied research, are presented. This first article focuses on soldering principles and dimensional accuracy in soldering. There is some discussion and suggestions for future research and development. Soldering may improve dimensional accuracy or reduce the distortion of multiunit fixed prostheses. Many variables can affect the outcome in soldering technique. Research science has developed some helpful guidelines. Research projects are disconnected and limited in scope.

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“…However, application of a large volume of acrylic resin for intraoral splinting increases the chair-side time and the polymerization shrinkage in direct relation to the mass volume. 14 The total shrinkage of acrylic resin is reported between 6.5 and 7.9% in the first 24 hours, most of which (80%) occurs in the first 17 minutes after mixing at room temperature. 15 The present article tries to introduce an applicable method for splinting the impression copings.…”

Section: 5005/jp-journals-10015-1510mentioning

confidence: 99%

Introducing a Method to facilitate making Acrylic Resin Bars for Splinting Multiple Implant Impression Copings

Ghodsi¹,

Rasaeipour²,

Aghandeh³

2018

World Journal of Dentistry

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Introduction:With the growth in implant application and observing complications associated with nonpassively fit prostheses, various techniques have been proposed to enhance the accuracy of transferring implants' position from the patient mouth to laboratory worktable. The present article introduces an applicable method for the same purpose.Aim: The present study aims to introduce an easy and applicable method to achieve a precise impression of multiple implants in the logical timeframe with minimal effort.Technique: Acrylic resin bars were fabricated in different widths and kept to be adapted to the position of implant impression copings for accurate impression. Conclusion:The explained method could facilitate precise transferring of implants' position from the mouth to laboratory in a practical and predictable manner.Clinical significance: Introduction of a method providing an accurate impression of the implants with accessible equipment will significantly improve the treatment quality and prognosis.

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Comparison of accuracy of soldering indices for fixed prostheses

Cited by 22 publications

References 2 publications

Concepts for Designing and Fabricating Metal Implant Frameworks for Hybrid Implant Prostheses

Concepts for Designing and Fabricating Metal Implant Frameworks for Hybrid Implant Prostheses

Soldering in Prosthodontics-An Overview, Part I

Introducing a Method to facilitate making Acrylic Resin Bars for Splinting Multiple Implant Impression Copings

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