Biomaterial Database

Occlusal force transmission by overdenture attachments. 1979

H H Thayer, and A A Caputo

This investigation utilized a composite photoelastic model to examine the load-transfer characteristics of several overdenture attachments. Tissue bar (Hader and King Connector) and stud (extracoronal) attachments (Rotherman, Gerber, and Ancrofix) were studied. The following observations may provide guidelines for the selection of overdenture attachments. 1. The more retentive tissue bar and extracoronal attachments produced higher stress concentrations. 2. Of the tissue bars tested, the Hader Bar produced less torquing forces on the abutment teeth. 3. The Ancrofix appeared to share the forces of occlusion between abutments and the posterior edentulous regions. 4. It must be emphasized that several other factors will also influence the choice of overdenture attachments, such as the judgment of the dentist, economics with respect to the patient, and the availability of laboratory expertise.

UI	MeSH Term	Description	Entries
D008954	Models, Biological	Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.	Biological Model,Biological Models,Model, Biological,Models, Biologic,Biologic Model,Biologic Models,Model, Biologic
D009066	Mouth, Edentulous	Total lack of teeth through disease or extraction.	Mouth, Toothless,Edentulous Mouth,Edentulous Mouths,Toothless Mouth
D003779	Denture Design	The plan, delineation, and location of actual structural elements of dentures. The design can relate to retainers, stress-breakers, occlusal rests, flanges, framework, lingual or palatal bars, reciprocal arms, etc.	Denture Designs,Design, Denture,Designs, Denture
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
D003828	Denture, Overlay	Removable prosthesis constructed over natural teeth or implanted studs.	Overdenture,Dentures, Overlay,Overdentures,Overlay Denture,Overlay Dentures
D003834	Denture Precision Attachment	A precision device used for attaching a fixed or removable partial denture to the crown of an abutment tooth or a restoration. One type is the intracoronal attachment and the other type is the extracoronal attachment. It consists of a female portion within the coronal portion of the crown of an abutment and a fitted male portion attached to the denture proper. (Jablonski, Dictionary of Dentistry, 1992, p85; from Boucher's Clinical Dental Terminology, 4th ed, p264)	Intracoronal Attachment,Precision Attachment, Denture,Slotted Attachment, Dental,Attachment, Dental Slotted,Attachments, Dental Slotted,Dental Slotted Attachment,Dental Slotted Attachments,Denture, Precision Attachment,Slotted Attachments, Dental,Attachment Denture, Precision,Attachment Dentures, Precision,Attachment, Denture Precision,Attachment, Intracoronal,Attachments, Denture Precision,Attachments, Intracoronal,Denture Precision Attachments,Dentures, Precision Attachment,Intracoronal Attachments,Precision Attachment Denture,Precision Attachment Dentures,Precision Attachments, Denture
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
D000539	Alveolar Process	The thickest and spongiest part of the maxilla and mandible hollowed out into deep cavities for the teeth.	Alveolar Ridge,Alveolar Processes,Process, Alveolar,Processes, Alveolar,Ridge, Alveolar