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Titolo:
Localized wear of compomer restorative materials
Autore:
Latta, MA; Barkmeier, WW; Wilwerding, TM; Blake, SM;
Indirizzi:
Creighton Univ, Sch Dent, Ctr Oral Hlth Res, Dept Gen Dent, Omaha, NE 68178 USA Creighton Univ Omaha NE USA 68178 Res, Dept Gen Dent, Omaha, NE 68178 USA Creighton Univ, Sch Dent, Ctr Oral Hlth Res, Dept Prosthodont, Omaha, NE 68178 USA Creighton Univ Omaha NE USA 68178 , Dept Prosthodont, Omaha, NE 68178 USA Gunderson Clin Ltd, La Crosse, WI 54601 USA Gunderson Clin Ltd La Crosse WI USA 54601 in Ltd, La Crosse, WI 54601 USA
Titolo Testata:
AMERICAN JOURNAL OF DENTISTRY
fascicolo: 4, volume: 14, anno: 2001,
pagine: 238 - 240
SICI:
0894-8275(200108)14:4<238:LWOCRM>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
IN-VITRO WEAR; CLINICAL-EVALUATION; PRIMARY MOLARS; COMPOSITE RESINS; POSTERIOR TEETH; AMALGAM; DYRACT; DURABILITY; ABRASION; INVITRO;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Latta, MA Creighton Univ, Sch Dent, Ctr Oral Hlth Res, Dept Gen Dent, 2500Calif Plaza, Omaha, NE 68178 USA Creighton Univ 2500 Calif Plaza Omaha NE USA 68178 NE 68178 USA
Citazione:
M.A. Latta et al., "Localized wear of compomer restorative materials", AM J DENT, 14(4), 2001, pp. 238-240

Abstract

Purpose: To determine and compare the localized wear of six compomer restorative materials. Materials and Methods: Ten specimens of Dyract, Dyract AP, F2000, Compoglass F, Elan and Hytac were prepared in a custom fixture andpolished. A pretest surface profile was generated using an MTS 3-D surfaceprofilometer and the specimens were subjected to 400,000 cycles in a Leinfelder wear machine equipped with a conical stylus tip to simulate localizedwear. A post-test profile was generated and the before and after profiles were fitted and analyzed using AnSur 3-D software. The total volume loss and depth of the wear facet on each specimen was calculated and statistical analysis was accomplished (ANOVA and Tukey's test). Results: Volume loss (mm) was as follows: F2000, 0.027 +/- 0.002; Hytac, 0.007 +/- 0.023; Elan, 0.054 +/- 0.013; Compoglass F, 0.135 +/- 0.006; Dyract AP, 0.135 +/- 0.023; Dyract, 0.185 +/- 0.032. Maximum depth of the wear facets (mum) was as follows: F2000, 112.2 +/- 10.2; Hytac, 132.8 +/- 9.3; Elan, 144.3 +/- 23.1; Compoglass F, 168.3 +/- 13.0; Dyract AP, 194.0 +/- 19.7; Dyract, 220.6 +/- 15.8. There was not a difference (P > 0.05) in volumetric loss between F2000 andHytac or between Hytac and Elan. The volume loss and maximum depth of the wear facets of F2000, Hytac and Elan was significantly less (P < 0.05) thanCompoglass F, Dyract AP and Dyract The results of this study indicate thatthere are significant differences in the in vitro wear rates of compomer materials.

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Documento generato il 23/09/18 alle ore 09:07:51