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- Title
Can the silane heat treatment influence the bond durability between resin cements and a dental ceramic?
- Authors
de CARVALHO, Ronaldo Luís Almeida; MIRANDA, Jean Soares; de CARVALHO, Rodrigo Furtado; DUARTE, Michelly Rocha; KIMPARA, Estevão Tomomitsu; OZCAN, Mutlu; LEITE, Fabíola Pessôa Pereira
- Abstract
Objective: Evaluate the influence of silane heat treatment in bond durability between two resin cements and CAD/CAM feldspathic ceramic. Methods: 40 feldspathic ceramic blocks were obtained, and were duplicated in microhybrid composite. All ceramic blocks were etched with 10% hydrofluoric acid for 20 s and received application of silane agent. The blocks were randomized into eight groups (n=5) according to the surface treatments and luting agents: P- Panavia F; PAg- Panavia F + Aging; HP- Heat Treatment + Panavia F; HPAg- Heat Treatment + Panavia F + Aging; R- RelyX ARC; Rag- RelyX ARC + Aging; HR- Heat Treatment + RelyX ARC; HRAg- Heat Treatment + RelyX ARC + Aging. The heat treatment was performed in furnace at 100 °C for 2 min. All blocks were cemented and cut to obtain samples with adhesive area of 1 mm2. Aging was performed with 10000 thermal cycles. The samples were subjected to microtensile bond strength test. Results: The three-way ANOVA test revealed a significant interaction between cement versus heat treatment (p=0.001) and heat treatment versus thermal cycling (p=0.001) indicating that there was a change in bond strength due to surface treatment and aging. Conclusion: Therefore, the heat treatment of the silane at 100 ºC for 2 minutes obtained higher values of bond strength between the resin cement and a feldspathic ceramic after aging.
- Subjects
HEAT treatment; DENTAL resins; DENTAL ceramics; DENTAL cements; THERMOCYCLING
- Publication
RGO: Revista Gaúcha de Odontologia, 2020, Vol 68, p1
- ISSN
0103-6971
- Publication type
Article
- DOI
10.1590/1981-86372020000012019-0002