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Titolo:
In vivo evaluation of the surface of posterior resin composite restorations: A pilot study
Autore:
Pesun, IJ; Olson, AK; Hodges, JS; Anderson, GC;
Indirizzi:
Univ Minnesota, Sch Dent, Dept Restorat Sci, Div Prosthodont, Minneapolis,MN 55455 USA Univ Minnesota Minneapolis MN USA 55455 thodont, Minneapolis,MN 55455 USA Univ Minnesota, Sch Publ Hlth, Div Biostat, Minneapolis, MN USA Univ Minnesota Minneapolis MN USA Hlth, Div Biostat, Minneapolis, MN USA Univ Minnesota, Sch Dent, Dept Diagnost Surg Sci, Minneapolis, MN 55455 USA Univ Minnesota Minneapolis MN USA 55455 rg Sci, Minneapolis, MN 55455 USA
Titolo Testata:
JOURNAL OF PROSTHETIC DENTISTRY
fascicolo: 3, volume: 84, anno: 2000,
pagine: 353 - 359
SICI:
0022-3913(200009)84:3<353:IVEOTS>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
WEAR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Pesun, IJ 9-450B Malcolm Moos Hlth Sci Tower,515 Delaware S, Minneapolis, MN 55455 USA 9-450B Malcolm Moos Hlth Sci Tower,515 Delaware S MinneapolisMN USA 55455
Citazione:
I.J. Pesun et al., "In vivo evaluation of the surface of posterior resin composite restorations: A pilot study", J PROS DENT, 84(3), 2000, pp. 353-359

Abstract

Statement of problem. Several methods have been used to determine the surface characteristics of resin composites in vivo and compare composite wear rates with enamel wear rates. Purpose. This pilot study describes the surface characteristics of resin composites and the wear Of resin composites and enamel during 1 year of in vivo service. Material and methods. A single Class II posterior resin composite restoration (Z100) was placed in 10 patients. Restored teeth and unrestored adjacent control teeth were measured for wear 4 times within the first year. A null point contact stylus profiler and fitting software were used to measure epoxy casts. Maximum depth of wear, average depth of wear, and characteristics of the restoration margin were determined. Paired t tests were used to compare the control and restored teeth, and ANOVA was used to assess the progression of wear over time (P<.05). Results, After 1 year, maximum depth of wear over the entire preparation region was on average 204.8 mu m (+/- 129.8), significantly greater than the36.8 mu m (+/- 10.1) average maximum depth of wear of enamel at occlusal contact areas on control teeth (P=.009). Maximum depth of wear progressed over time (P=.009). Fracture of excess composite, commonly called flash fracture, occurred in 50% of the restored teeth extending over the preparation margin. Conclusion, Composite restorations wore significantly faster than enamel contact areas on control teeth. Also of concern were thr marginal flash fractures that could facilitate secondary caries.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 18:08:17