In vitro study of shear bond strength in direct and indirect bonding with three types of adhesive systems
Author
Iglesias, Angelica
Flores, Teresa
Moyano Lleixà, Javier
Artés Ribas, Montserrat
Gil Mur, Francisco Javier
Puigdollers, Andreu
Publication date
2020ISSN
1996-1944
Abstract
This study aimed to compare the shear bond strength (SBS) and adhesive remaining index (ARI) using one conventional and two novel adhesive systems with clinical step reduction and direct and indirect bonding. A sample of 72 human premolars were divided into six groups of 12 samples. The first three groups (G1, G2, G3) were bonded with a direct technique, while the remaining groups (G4, G5, G6) were bonded by the indirect technique. Groups G1 and G4 used conventional acid-etching primer composite (XT); groups G2 and G5 used self-etching bonding (BO), and groups G3 and G6 had an acid-etching treatment followed by a self-adhesive composite (OC). All groups were exposed to thermocycling. Shear bond strength was analyzed with a universal test machine, and the ARI was examined with 4× magnification. The results showed statistically significant differences between the three adhesive systems. The highest strength values were observed in the XT group G1 (13.54 ± 4 MPa), while the lowest were shown in the BO G2 samples (5.05 ± 2 MPa). There was no significant difference between the direct or indirect bonding techniques on the three compared groups. The type of primer and bonding material significantly influenced the SBS. Values with self-etching bonding were below the minimum recommended for clinical use (5.9–7.8 MPa). There was no difference between indirect and direct bonding techniques. The lowest ARI scores (0–1) were observed in both self-etching and BO groups. Further clinical studies are needed to compare in vivo results.
Document Type
Article
Document version
Accepted version
Language
English
Subject (CDU)
616.3 - Pathology of the digestive system. Complaints of the alimentary canal
Keywords
Adhesius
Odontologia
Ortodòncia
Adhesivos
Odontología
Ortodoncia
Adhesives
Odontology
Orthodontics
Pages
13
Publisher
MDPI
Collection
13;11
Is part of
Materials
Citation
Iglesias, Angelica; Flores, Teresa; Moyano, Javier [et al.]. In vitro study of shear bond strength in direct and indirect bonding with three types of adhesive systems. Materials, 2020, 13(11), p. 1-13. Disponible en: <https://www.mdpi.com/1996-1944/13/11/2644>. Fecha de acceso: 20 jun. 2020. DOI: 10.3390/ma13112644
This item appears in the following Collection(s)
- Odontologia [228]
Rights
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open accessarticle distributed under the terms and conditions of the Creative Commons Attribution(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by/4.0/