Toothbrushing Wear Resistance of Stained CAD/CAM Ceramics

Autor(es)

Dal Piva, Amanda Maria de Oliveira ^[1] ; Bottino, Marco Antonio ^[1] ; Anami, Lilian Costa ^[1] ; Werner, Arie ^{[2, 3]} ; Kleverlaan, Cornelis Johannes ^{[2, 3]} ; Lo Giudice, Roberto ^[4] ; Fama, Fausto ^[4] ; Silva-Concilio, Lais Regiane da ^[5] ; Tribst, Joao Paulo Mendes ^[5]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ Unesp SJC, Inst Sci & Technol, Dept Dent Mat & Prosthodont, Postgrad Program Restorat Dent Prosthodonti, Engenheiro Francisco Jose Longo Ave 777, BR-12245000 Sao Jose Dos Campos - Brazil

^[2] Univ Amsterdam, Acad Ctr Dent Amsterdam ACTA, Dept Dent Mat Sci, Gustav Mahlerlaan 3004, NL-1081 Amsterdam - Netherlands

^[3] Vrije Univ, Gustav Mahlerlaan 3004, NL-1081 Amsterdam - Netherlands

^[4] Univ Hosp G Martino Messina, Dept Human Pathol Adulthood & Childhood G Barresi, Via Consolare Valeria 1, I-98125 Messina - Italy

^[5] Univ Taubate UNITAU, Dept Dent, Postgrad Program Dent, Operarios St 09, BR-12020340 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: COATINGS; v. 11, n. 2 FEB 2021.
• Citações Web of Science: 2

Resumo

Aim: To investigate the effect of toothbrushing on different stained Computerd Aided Design/Computer Aided Manufacturing CAD/CAM ceramics. Materials and Methods: Fifty specimens (high translucency zirconia, YZHT; zirconia-reinforced lithium silicate, ZLS; feldspathic, FDL; hybrid ceramic, HC; all from Vita Zahnfabrik) were divided into five groups according to their staining technique. ZLS allowed the composition of two groups: ZLS1 with crystallization and staining together; ZLS2, with the stain firing after the crystallization. YZHT received a stain firing after the sintering process, and FDL received stain firing directly. The HC was stained with acrylic staining, and was light-cured on its surface. The specimens were brushed in total for 150,000 cycles at 2.45 N with 180 strokes/min. Surface measurements to obtain Rz were performed after 50,000, 100,000 and 150,000 cycles, with five evaluation lines (5 mm) per specimen orthogonal to the brushing direction, covering brushed and unbrushed areas. The wear was analyzed using two-way ANOVA and Tukey tests (alpha = 5%). Scanning electron microscopy (SEM) was performed to access the surface profile. The wear was affected by material (p < 0.001) and time (p = 0.139). Superior wear (mu m) was observed for HC (6.6 +/- 4.4; 6.8 +/- 4.0; 9.2 +/- 3.5) compared to ZLS2 (1.0 +/- 0.3; 1.2 +/- 2.2; 1.3 +/- 0.3), YZHT (1.0 +/- 0.1; 1.2 +/- 0.3; 1.2 +/- 0.3), ZLS1 (0.9 +/- 0.1; 1.1 +/- 0.5; 1.2 +/- 0.3) and FDL (0.9 +/- 0.1; 0.9 +/- 0.1; 1.0 +/- 0.2) after 5, 10 and 15 years of simulation, respectively. SEM showed different wear patters for HC with the removal of the glaze layer. HC showed a higher staining wear rate compared to the glass-based and polycrystalline ceramics after 15 years. The extrinsic characterization of feldspathic ceramic showed its superior longevity compared to the evaluated high-translucency zirconia, zirconia-reinforced lithium silicate, and hybrid ceramic. (AU)

• Processo FAPESP: 18/05908-4 - Avaliação da durabilidade da camada de caracterização sobre cerâmicas monolíticas
• Beneficiário: Lilian Costa Anami Paulin
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 17/11535-3 - Influência da espessura da cerâmica no comportamento biomecânico, sobrevivência e translucidez de coroas monolíticas
• Beneficiário: Amanda Maria de Oliveira Dal Piva
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 18/03984-5 - O efeito do desgaste na maquiagem de diferentes cerâmicas monolíticas
• Beneficiário: Amanda Maria de Oliveira Dal Piva
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 18/07404-3 - Influência dos tratamentos superficiais prévios à maquiagem sobre a resistência ao desgaste de uma cerâmica híbrida
• Beneficiário: João Paulo Mendes Tribst
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado