Biomaterial Database

Retention of dowels subjected to tensile and torsional forces. 1979

D R Ruemping, and M R Lund, and R J Schnell

This investigation measured the maximal tensile and torsional forces sustained by four different designs of dowels. 1. Under tensile force, the threaded screw-in dowels were significantly more retentive than the unthreaded dowels. 2. Under torque, both the threaded screw-in and serrated dowels were significantly more retentive than the smooth-sided dowels.

UI	MeSH Term	Description	Entries
D010969	Plastics	Polymeric materials (usually organic) of large molecular weight which can be shaped by flow. Plastic usually refers to the final product with fillers, plasticizers, pigments, and stabilizers included (versus the resin, the homogeneous polymeric starting material). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	Plastic
D011176	Post and Core Technique	Use of a metal casting, usually with a post in the pulp or root canal, designed to support and retain an artificial crown.	Dental Dowels,Dental Dowel,Dowel, Dental,Dowels, Dental,Post Technic,Post Technique,Post and Core Technic,Post-Core Technic,Post Technics,Post Techniques,Post-Core Technics,Technic, Post,Technic, Post-Core,Technics, Post,Technics, Post-Core,Technique, Post,Techniques, Post
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
D006047	Gold Alloys	Alloys that contain a high percentage of gold. They are used in restorative or prosthetic dentistry.	Gold Alloy,Alloy, Gold,Alloys, Gold
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012399	Rotation	Motion of an object in which either one or more points on a line are fixed. It is also the motion of a particle about a fixed point. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	Clinorotation,Clinorotations,Rotations
D013193	Stainless Steel	Stainless steel. A steel containing Ni, Cr, or both. It does not tarnish on exposure and is used in corrosive environments. (Grant & Hack's Chemical Dictionary, 5th ed)	Stainless Steels,Steel, Stainless,Steels, Stainless
D013499	Surface Properties	Characteristics or attributes of the outer boundaries of objects, including molecules.	Properties, Surface,Property, Surface,Surface Property