Journal article
Biomechanical degradation of the nano-filled resin-modified glass-ionomer surface
American journal of dentistry, Vol.25(6), pp.315-320
12/01/2012
PMID: 23409620
Abstract
Purpose: To evaluate in the laboratory the roughness (Ra) and micromorphology surface of the nanofilled resin-modified glass-ionomer (Ketac N100) subjected to biomechanical degradation, compared to Vitremer, Ketac Molar Easymix and Fuji IX. Methods: Specimens obtained from the ionomers were divided into two storage groups (n=10): relative humidity and S. mutans biofilm (biodegradation). After 7 days, Ra values and micrographs were obtained. Then, the brushing abrasion test (mechanical degradation) was conducted with dentifrice slurry (three-body) and the specimens were reassessed. Data were submitted to repeated measures three-way ANOVA and Tukey tests (P< 0.05). Results: There was significant interaction among the factors: material, storage and abrasion (before/after). Vitremer showed similar Ra values between storage groups, while the other materials presented higher Ra values after biodegradation test. Concerning biomechanical challenge, Ketac N100 presented the lowest Ra values. Ketac Molar Easymix and Fuji IX presented undesirable roughening of their surfaces under the detrimental conditions tested. The eroded aspect after biodegradation with filler exposure after mechanical degradation was evident. (Am J Dent 2012;25:315-320).
Details
- Title: Subtitle
- Biomechanical degradation of the nano-filled resin-modified glass-ionomer surface
- Creators
- Suzana Beatriz Portugal de Fucio - Univ Estadual Campinas, Piracicaba Dent Sch, Dent Mat Program, Piracicaba, SP, BrazilAndreia Bolzan de Paula - Univ Estadual Campinas, Piracicaba Dent Sch, Dent Mat Program, Piracicaba, SP, BrazilFabiola Galbiatti de Carvalho - Univ Estadual Campinas, Piracicaba Dent Sch, Dent Mat Program, Piracicaba, SP, BrazilVictor Pinheiro Feitosa - Univ Estadual Campinas, Piracicaba Dent Sch, Dent Mat Program, Piracicaba, SP, BrazilGlaucia Maria B. Ambrosano - Univ Estadual Campinas, Piracicaba Dent Sch, Dept Social & Publ Hlth, Piracicaba, SP, BrazilRegina Maria Puppin-Rontani - Univ Estadual Campinas, Piracicaba Dent Sch, Dept Pediat Dent, Piracicaba, SP, Brazil
- Resource Type
- Journal article
- Publication Details
- American journal of dentistry, Vol.25(6), pp.315-320
- Publisher
- Mosher & Linder, Inc
- PMID
- 23409620
- ISSN
- 0894-8275
- Number of pages
- 6
- Grant note
- CAPES (Coordenacao de Aperfeicoamento Profissional de Nivel Superior); Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
- Language
- English
- Date published
- 12/01/2012
- Academic Unit
- Operative Dentistry
- Record Identifier
- 9984655346202771
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