Resumo

SHITSUKA, Caleb; SHITSUKA, Ricardo  e  CORREA, Maria Salete Nahás Pires. Surface roughness of composite resins: esthetic and clinical longevity. RFO UPF [online]. 2014, vol.19, n.2, pp. 258-261. ISSN 1413-4012.

Due totechnological advances, researchers and dental industries, trying to develop materials with characteristics that improve aesthetics while the clinical longevity. It is known that the surface of a restorative material directly influences the aesthetics and longevity clinic, indicating the success or failure of the same. Objective: this study was conducted hrough literature review aimed to present the findings of the literature on the comparison of the surface roughness of the composite nanoparticles compared to microparticulate and microhibridos composites and to verify the possible successes and failures of this new technology "nanoparticles". Literature review: many studies show that a rough surface with roughness, implies staining and accumulation of biofilm, causing damage to the restoration and the patient's oral health. Also we could see important differences surface of composites with nanoparticles to microparticles and microhybrid composites. Final considerations: the surface of the nanoparticles composite is more regular than the microparticulateandmicrohibridos composites, this regularity is crucial for aesthetics and clinical longevity of the material.

Palavras-chave : Composite resin.; Nanotecnology.; Surface roughness..