Physicochemical, Mechanical, and Esthetic Properties of the Composite Resin Manipulated with Glove Powder and Adhesive as a Modeling Liquid

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 ph...

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Bibliographic Details
Published in:Materials 2022-11, Vol.15 (21), p.7791
Main Authors: Bauer, Jose, Mendes, Ruan Pinto, Cavaleiro de Macedo, Rayssa, Carvalho, Edilausson Moreno, Lopes, Leonardo, Grazziotin-Soares, Renata, Lima, Darlon Martins, Oliveira, Barbara Costa
Format: Article
Language:English
Subjects:
Adhesives
Analysis
Color
Composite materials
Dentists
Flexural strength
Fracture toughness
Gloves
Handling
Latex
Light
Mechanical properties
Modelling
Modulus of elasticity
Polyesters
Powders
Resins
Solubility
Sorption
Stability
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Summary: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.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma15217791