Biomaterial Database

Three-dimensional finite element analysis of the retention of fixed partial dentures. 1997

D Augereau, and P Renault, and L Pierrisnard, and M Barquins

Four three-dimensional mathematical models were generated, each representing a three-unit fixed partial denture. The second premolar and second molar were used as abutments. Different associations of dental support preparation were tested. A 500-N axial load was applied to the pontic. Strains were analysed for each dental support by means of a three-dimensional finite element analysis technique. The results showed that the greatest strains were observed on the weaker abutment, the premolar. The cervical margin facing the edentulous area is affected most, regardless of the model or the dental support. The greater the dento-prosthetic differential surface between the two dental supports (thus the greater the retention differential) the higher the risk of unsealing.

UI	MeSH Term	Description	Entries
D008963	Molar	The most posterior teeth on either side of the jaw, totaling eight in the deciduous dentition (2 on each side, upper and lower), and usually 12 in the permanent dentition (three on each side, upper and lower). They are grinding teeth, having large crowns and broad chewing surfaces. (Jablonski, Dictionary of Dentistry, 1992, p821)	Molars
D009716	Numerical Analysis, Computer-Assisted	Computer-assisted study of methods for obtaining useful quantitative solutions to problems that have been expressed mathematically.	Analysis, Computer-Assisted Numerical,Computer-Assisted Numerical Analysis,Analyses, Computer-Assisted Numerical,Analysis, Computer Assisted Numerical,Computer Assisted Numerical Analysis,Computer-Assisted Numerical Analyses,Numerical Analyses, Computer-Assisted,Numerical Analysis, Computer Assisted
D003442	Crowns	A prosthetic restoration that reproduces the entire surface anatomy of the visible natural crown of a tooth. It may be partial (covering three or more surfaces of a tooth) or complete (covering all surfaces). It is made of gold or other metal, porcelain, or resin.	Dental Crowns,Crown, Dental,Crowns, Dental,Dental Crown,Crown
D003781	Denture Retention	The retention of a denture in place by design, device, or adhesion.	Denture Stability,Retention, Denture,Stability, Denture
D003799	Dental Stress Analysis	The description and measurement of the various factors that produce physical stress upon dental restorations, prostheses, or appliances, materials associated with them, or the natural oral structures.	Analyses, Dental Stress,Analysis, Dental Stress,Stress Analyses, Dental,Stress Analysis, Dental,Dental Stress Analyses
D003830	Denture, Partial, Fixed	A partial denture attached to prepared natural teeth, roots, or implants by cementation.	Fixed Bridge,Fixed Partial Denture,Pontic,Bridge, Fixed,Bridges, Fixed,Denture, Fixed Partial,Dentures, Fixed Partial,Fixed Bridges,Fixed Partial Dentures,Partial Denture, Fixed,Partial Dentures, Fixed,Pontics
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000044	Dental Abutments	Natural teeth or teeth roots used as anchorage for a fixed or removable denture or other prosthesis (such as an implant) serving the same purpose.	Abutments, Dental,Abutment, Dental,Dental Abutment
D001641	Bicuspid	One of the eight permanent teeth, two on either side in each jaw, between the canines (CUSPID) and the molars (MOLAR), serving for grinding and crushing food. The upper have two cusps (bicuspid) but the lower have one to three. (Jablonski, Dictionary of Dentistry, 1992, p822)	Premolar,Bicuspids,Premolars
D017267	Dental Prosthesis Design	The plan and delineation of dental prostheses in general or a specific dental prosthesis. It does not include DENTURE DESIGN. The framework usually consists of metal.	Dental Prosthesis Designs,Design, Dental Prosthesis,Designs, Dental Prosthesis,Prosthesis Design, Dental,Prosthesis Designs, Dental