Flexibility of technopolymer clasps compared with cobalt-chromium and titanium clasps.
| Title: | Flexibility of technopolymer clasps compared with cobalt-chromium and titanium clasps. |
|---|---|
| Authors: | Sykes LM; Department of Prosthetic Dentistry, School of Oral Health Sciences, University of the Witwatersrand, Johannesburg.; Dullabh HD; Chandler HD; Bunn B; Essop AR |
| Source: | SADJ : journal of the South African Dental Association = tydskrif van die Suid-Afrikaanse Tandheelkundige Vereniging [SADJ] 2002 May; Vol. 57 (5), pp. 166-71. |
| Publication Type: | Comparative Study; Journal Article |
| Language: | English |
| Journal Info: | Publisher: South African Dental Association Country of Publication: South Africa NLM ID: 9812497 Publication Model: Print Cited Medium: Print ISSN: 1029-4864 (Print) Linking ISSN: 10294864 NLM ISO Abbreviation: SADJ |
| Imprint Name(s): | Original Publication: Houghton : South African Dental Association, [1998- |
| MeSH Terms: | Dental Clasps* ; Dental Prosthesis Design*; Chromium Alloys/*chemistry ; Dental Alloys/*chemistry ; Polymers/*chemistry ; Titanium/*chemistry; Bicuspid/physiology ; Vitallium/chemistry ; Analysis of Variance ; Dental Abutments ; Elasticity ; Esthetics, Dental ; Humans ; Pliability ; Statistics, Nonparametric ; Stress, Mechanical ; Surface Properties ; Weight-Bearing |
| Abstract: | Patients often cite lack of retention and poor aesthetics as reasons for not wearing their partial dentures. Traditional metal alloy clasps have been shown to exert forces on abutment teeth that exceed those capable of producing tooth movement. In addition, metal display on anterior teeth is often unacceptable. The technopolymer materials are purported to have superior flexibility and exert less force than the metals. This study compared the flexibility and forces produced by technopolymer clasps with those exerted by cobalt-chromium and titanium clasps. The results showed that the technopolymer clasps were up to ten times as flexible as the metal clasps, and they returned to their pretest dimensions after being stretched. In addition, they exerted forces on the abutment teeth that fall within the range of those considered safe for use. This coupled with their pleasing aesthetics makes them suitable for use on periodontally compromised teeth, those with deep undercuts and on anterior teeth. |
| Substance Nomenclature: | 0 (Chromium Alloys); 0 (Dental Alloys); 0 (Polymers); 12629-02-6 (Vitallium); D1JT611TNE (Titanium) |
| Entry Date(s): | Date Created: 20020815 Date Completed: 20021118 Latest Revision: 20131121 |
| Update Code: | 20260130 |
| PMID: | 12174711 |
| Database: | MEDLINE |
Comparative Study; Journal Article