Bond Strength of Artificial Teeth Attached to a Microwave-Polymerized Denture Base Resin after Immersion in Disinfectant Solutions

Autor(es)

Pero, Ana Carolina ; Scavassin, Priscila Mattos ; Nunes, Elen Massaro ; Policastro, Vivian Barnabe ; Giro, Gabriela ; Compagnoni, Marco Antonio

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY; v. 25, n. 7, p. 576-579, OCT 2016.
• Citações Web of Science: 2

Resumo

PurposeTo evaluate the bond strength between two types of acrylic resin teeth and a microwave denture base resin after immersion in disinfectant solutions for 180 days. Materials and MethodsEighty specimens made of acrylic resin teeth (Biotone and Biotone IPN) attached to a microwave polymerized denture base resin (Nature-Cryl MC) were divided into eight groups (n = 10) according to the treatment (distilled watercontrol, 2% chlorhexidine digluconate, 1% sodium hypochlorite and sodium perborate solutionCorega Tabs). The shear strength tests (MPa) were carried out using a universal testing machine with a 0.5 mm/min speed. Data analysis was performed using ANOVA and multiple comparison Student-Newman-Keuls post hoc test ( = 0.05). ResultsBiotone IPN showed similar results among the groups (distilled water, 8.25 1.81 MPa; chlorhexidine, 7.81 +/- 3.34 MPa; hypochlorite, 7.75 +/- 3.72 MPa; and Corega Tabs, 7.58 +/- 2.27 MPa, whereas Biotone showed significantly lower shear bond strength values for the groups immersed in Corega Tabs (5.25 +/- 3.27 MPa) and chlorhexidine (6.08 +/- 2.35 MPa). ConclusionsSoaking the dentures in 1% sodium hypochlorite could be recommended as a disinfectant solution for dentures fabricated with conventional acrylic resin denture teeth and microwave denture base resin. For dentures fabricated with IPN teeth and microwave denture base resin, all the soaking solutions evaluated in this study could be suggested to denture wearers. (AU)

• Processo FAPESP: 11/18031-4 - Efeito da imersão em soluções desinfetantes na resistência de união de dois tipos de dentes artificiais unidos a uma resina acrílica termopolimerizável
• Beneficiário: Priscila Mattos Scavassin
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica