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An International Peer Reviewed Journal for Pharmaceutical, Medical & Biological Sciences

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 ISSN 2394-3211

Impact Factor: 7.065

 ICV - 79.57



Vivian Colucci, Rodrigo Alexandre Valério, Tiago Gilioli Varise, Taísa Penazzo Lepri, Cecília Pedroso Turssi, *Silmara Aparecida Milori Corona


Objectives: The aim of the present in vitro study was to evaluate the effect of an Er:YAG laser on the bond strength of eroded dentin. Materials and Methods: Fifteen bovine incisors (n = 10) were sectioned crowns, resulting in 60 samples (4 x 4 x 2 mm). Samples were randomly assigned in 3 surface treatment: A. 5% fluoride varnish; B. Er:YAG laser irradiation and C. no treatment (control) - and 2 bond systems: (I) Total etching and (II) Self-etching. Specimens were immersed in 0.3% citric acid solution (pH 3.2). The 5% fluoride varnish and an Er:YAG laser (80 mJ, 3 Hz) were applied at dentin surface. After performing the treatments on eroded dentin, specimens were randomly subdivided according to the bond system (I or II). All specimens were individually fixed at a metallic device, forming a cylinder (3 x 4 mm), to be subjected to the shear bond strength test (MPa). Results: ANOVA showed that there was no statistically difference between the employed surface treatments (p < 0.05). With respect to the bond systems, it was observed greater shear bond strength to the self-etching bond system (Adhese – 11.89 MPa) compared to the total-etching (Excite – 8.45 MPa) (p <0.05). Conclusion: It can be concluded that the treatments performed at eroded dentin did not interfere on the bond strength of the composite resin to this tissue. The self-etching adhesive system provided greater adhesion to the eroded dentin, compared to the total-etching.

Keywords: Erosion, Dentin, Lasers, Fluoride varnish, Bond strength.

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Google Scholar Indian Science Publications InfoBase Index (In Process) SOCOLAR, China Research Bible, Fuchu, Tokyo. JAPAN International Society for Research activity (ISRA) Scientific Indexing Services (SIS) Polish Scholarly Bibliography Global Impact Factor (GIF) (Under Process) Universal Impact Factor International Scientific Indexing (ISI), UAE Index Copernicus CAS (A Division of American Chemical Society) USA (Under Process) Directory of Open Access Journal (DOAJ, Sweden, in process) UDLedge Science Citation Index CiteFactor Directory Of Research Journal Indexing (DRJI) Indian citation Index (ICI) Journal Index (JI, Under Process) Directory of abstract indexing for Journals (DAIJ) Open Access Journals (Under Process) Impact Factor Services For International Journals (IFSIJ) Cosmos Impact Factor Jour Informatics (Under Process) Eurasian Scientific Journal Index (ESJI) International Innovative Journal Impact Factor (IIJIF) Science Library Index, Dubai, United Arab Emirates Pubmed Database [NLM ID: 101669306] (Under Process) IP Indexing (IP Value 2.40) Web of Science Group (Under Process) Directory of Research Journals Indexing Scholar Article Journal Index (SAJI) International Scientific Indexing ( ISI ) Scope Database Academia