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Bauer J, Mendes RP, Cavaleiro de Macedo R, Carvalho EM, Lopes L, Grazziotin-Soares R, Lima DM, Oliveira BC. Physicochemical, Mechanical, and Esthetic Properties of the Composite Resin Manipulated with Glove Powder and Adhesive as a Modeling Liquid. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7791. [PMID: 36363382 PMCID: PMC9657255 DOI: 10.3390/ma15217791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/19/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Composite resins with low flowability are usually handled and manipulated before insertion into the tooth preparation with gloved hands and/or using an instrument covered with a little amount of adhesive to facilitate modeling. We investigated if the modeling techniques (combined or not) affected physicochemical and esthetic properties of a composite resin. Specimens were fabricated and divided into groups according to the handling/modeling technique: Gloved-hands (composite was hand-manipulated with powdered latex gloves); Adhesive (adhesive was used in between the composite layers); Gloved-hands + Adhesive; Control (no adhesive and no touch with gloved-hands). The highest values for flexural strength (MPa), modulus of elasticity (GPa), and fracture toughness (MPa.m0.5) were obtained for Adhesive and Gloved-hands + Adhesive (p < 0.05); the lowest values were obtained for Control and Gloved-hands (p < 0.05). The Control group had the highest sorption. The Gloved-hands (p < 0.05) group had the highest solubility. Adhesive and Gloved-hands + Adhesive had a similar solubility (p > 0.05). The Control group (p < 0.05) had the lowest solubility. There was no statistical interaction between translucency vs. handling/modeling techniques and color stability vs. handling/modeling techniques. Adhesive as a modeling liquid protected the composite against sorption and solubility (if powdered gloves were used) and improved its physical/mechanical properties. Translucency and color stability were not correlated with modeling techniques.
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Affiliation(s)
- Jose Bauer
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), Av. dos Portugueses, 1966, São Luís 65080-805, Brazil
| | - Ruan Pinto Mendes
- Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo (FOUSP), Av. Prof. Lineu Prestes, 2227, São Paulo 05508-900, Brazil
| | - Rayssa Cavaleiro de Macedo
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), Av. dos Portugueses, 1966, São Luís 65080-805, Brazil
| | - Edilausson Moreno Carvalho
- School of Dentistry, University Ceuma (UNICEUMA), R. Josué Montello, 1, Renascença II, São Luis 65075-120, Brazil
| | - Leonardo Lopes
- School of Dentistry, University Ceuma (UNICEUMA), R. Josué Montello, 1, Renascença II, São Luis 65075-120, Brazil
| | - Renata Grazziotin-Soares
- Endodontics Division, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia (UBC), Vancouver, BC V6T 1Z4, Canada
| | - Darlon Martins Lima
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), Av. dos Portugueses, 1966, São Luís 65080-805, Brazil
| | - Barbara Costa Oliveira
- School of Dentistry, University Ceuma (UNICEUMA), R. Josué Montello, 1, Renascença II, São Luis 65075-120, Brazil
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Berto-Inga J, Santander-Rengifo F, Ladera-Castañeda M, López-Gurreonero C, Castro Pérez-Vargas A, Cornejo-Pinto A, Cervantes-Ganoza L, Cayo-Rojas C. Surface Microhardness of Bulk-Fill Resin Composites Handled With Gloves. Int Dent J 2022:S0020-6539(22)00231-3. [DOI: 10.1016/j.identj.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/14/2022] [Accepted: 10/14/2022] [Indexed: 11/19/2022] Open
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