Effect of Finishing Systems on Surface Roughness and Gloss of Full-Body Bulk-Fill Resin Composites

Abstract

Background: In this study, we assess the effect produced on roughness and gloss of full-body bulk-fill materials by different finishing and polishing systems. Methods: Four full-body bulk-fill materials were tested: SonicFill2 (SF), Filtek Bulk Fill Posterior Restorative (FB), Tetric EvoCeram bulk-fill (EC), and Fill-Up! (FU). Sixty discs per material (2 mm in thickness and 7 mm in diameter) were obtained and randomly assigned (n = 15) to four finishing and polishing methods: Sof-Lex Spiral Wheels (SW), HiLusterPLUS (HL), Astropol (AP), and Opti1Step (OS). Surface roughness and gloss were then measured. Results: For roughness, material and surface treatment were significant factors (p < 0.001) with SF = FB = EC < FU and AP < SW < HL = OS. Material and surface treatment had a significant effect also on gloss (p < 0.001), with SF > FB = EC > FU and SW > AP > HL > OS. Conclusions: The tested combinations of bulk-fill and polishing systems provided clinically acceptable results with regard to roughness, while the outcome was poor for gloss. Multistep finishing/polishing systems were able to produce smoother surfaces on full-body bulk-fill materials compared to simplified ones.

Assessment of Conventionally and Digitally Fabricated Complete Dentures: A Comprehensive Review

“…A smooth surface is important in every restorative treatment to reduce biofilm formation. It lends better esthetics, patient acceptance, and clinical success [ 45 ]. Al Moaleem et al [ 46 ] concluded that the presence of smooth restoration, as well as oral prostheses, clinically minimizes adherence and biofilm formation.…”

Microbial Adhesion to Dental Polymers for Conventional, Computer-Aided Subtractive and Additive Manufacturing: A Comparative In Vitro Study

“…Surface roughness and hydrophobicity (surface free energy) are considered the most important factors [ 20 , 21 , 22 ]. It is worth noting that a fundamental parameter is the materials’ chemical composition, a slight change in which affects both the microbiological characteristics [ 12 , 23 ] and the possibility of achieving the smoothest surface [ 24 , 25 ]. Studies have also revealed that the quality of additive manufacturing and the surface roughness of the samples are significantly affected by the printing parameters (print orientation, layer thickness, localization of supporting structures, etc.)…”

Intervenção restauradora em dente anterior fraturado por trauma com resina unicromática: relato de caso / Restorative intervention in trauma fractured anterior tooth with unichromatic resin: case report

“…Por isto, esta etapa clínica deve ser seguida indispensavelmente pelo polimento, pois a região porosa da restauração pode servir como retenção para o acúmulo de biofilme, inflamação gengival e contribuem para a formação de cáries secundárias. 29 Desta maneira, o acabamento e polimento são essenciais pra a estética e saúde periodontal, porque atuam minimizando a proliferação de bactérias nas rugosidades, devolvem a anatomia perdida e estabelecem uma superfície polida e brilhosa, possibilitando assim um aspecto estético, semelhante aos dos dentes adjacentes. 30 Observa-se que por meio do plano de tratamento proposto foi possível devolver a estética e função bucal da paciente, com uma reabilitação oral utilizando a resina unicromática que possibilitou um menor custo e otimizou o tempo clínico.…”