Long-term clinical evaluation of implant over denture

T he goals of overdenture attachment for i m p l a n t r e c o n structed edentulous mandibles are to maximize stability and retention of the overdenture and provide shared support of the implants longitudinally, extending their longevity. The attachment system should be simple, predictable, cost-effective, and satisfying to the patient. Many types of attachments have been used for implant overdentures. These include magnets, ball-O-rings, and clips and bars. The most common cause of implant or implant overdenture failure is the higher occurrence of hardware complications, rather than actual direct implant failure. These include the need to repair the retentive clip fractures, acrylic resin fractures, acrylic teeth fractures, and bar fractures, and to replace loose screws. Soft tissue problems include hyperplasia and peri-implant mucositis. Increased maintenance requirements postdelivery can be oral hygiene–related. In addition, there can be opposing denture problems or a need for reline. The overdenture prosthesis must be carefully designed, according to the requirements, to ensure adequate stability and optimum form, contour, esthetics, and patient comfort. Clinical and technical aspects should be considered at the beginning of treatment to (1) select the optimal implant position, (2) establish an adequate number of functional units, (3) select the appropriate retainers, and (4) apply the best technique for framework processing and veneering. Ball-O-ring attachments (Biohorizon O-Rings, Birmingham, Ala) have been widely used because of their low cost, ease of changing attachments, and minimal chair time required. The use of O-rings alone allows for prosthesis movement in 6 directions, but they may require constant replacement of the O-rings from wear and tear of the environmental elements of stress, friction, heat, and swelling. In most cases, connecting the implants with a bar, rather than utilizing them individually (freestanding), is preferred. With the addition of a secondary encapsulator, which is a female attachment inserted into the denture, prosthesis movement can be minimized. Using the encapsulator makes O-ring replacement easier, but failure can still occur because of incorrect O-ring size, improper

The Use of Ball-clip Attachments with an Implant-supported Primary-secondary Bar Overdenture

Purpose : This study evaluated the bending strengths of five types of framework structures for implant-stabilized overdentures.Materials and Methods : Five types of framework structures for implant-stabilized removable prostheses were cast using a Co-Cr alloy : conventional housing (Type A), housing with short skeleton (Type B), long skeleton only (Type C), housing with long skeleton (Type D), and Type D plus a metal backing connected by columns (Type E ; hereinafter referred to as the “double structure”). All castings were embedded in a heat-cured denture base resin. As controls, the same size resin blocks without frameworks were prepared. A bending test was used to test each specimen as it acted as a fulcrum on the implant. Breaking load, maximum stiffness, and strain were measured.Results : The breaking load and maximum stiffness of the double structure were significantly greater (p<0.05), i.e., 1.5-4.5 times and 2-6 times greater, respectively, than for the conventional frameworks.Conclusion : When the double structure framework was used for implant-stabilized prostheses, the bending strengths were greater than for the conventional housing design.

Bending Strengths of Metal Framework Structures for Implant-stabilized Overdentures

A technique using a custom-made cast alloy attachment housing for an implant-retained overdenture prosthesis is presented. Common problems encountered in implant-tissue bar-retained overdentures are discussed. Details of the modified laboratory procedure are described. This technique provides the clinician with an alternative for predictably treating patients with implant-retained overdentures.

The Management of Implant‐Retained Overdenture Treatment With Custom‐Made Metallic Attachment Housing

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

David Morrison

Author Tools

Chat about Author

Papers

The Management of Implant‐Retained Overdenture Treatment With Custom‐Made Metallic Attachment Housing