Journal article
Relationships between Flexural and Bonding Properties, Marginal Adaptation, and Polymerization Shrinkage in Flowable Composite Restorations for Dental Application
Polymers, Vol.13(2613), p.2613
08/01/2021
DOI: 10.3390/polym13162613
PMCID: PMC8398176
PMID: 34451153
Abstract
To evaluate the flexural and bonding properties, marginal adaptation, and polymerization shrinkage in flowable composite restorations and their relationships, four new generation flowable composites, one conventional, and one bulk-fill flowable composite were used in this study. Flexural properties of the composites and shear bond strength to enamel and dentin for flowable restorations were measured immediately and 24 h after polymerization. Marginal adaptation, polymerization shrinkage, and stress were also investigated immediately after polymerization. The flexural properties, and bond strength of the flowable composites to enamel and dentin were much lower immediately after polymerization than at 24 h, regardless of the type of the composite. Polymerization shrinkage and stress varied depending on the material, and bulk-fill flowable composite showed much lower values than the others. The marginal adaptation and polymerization shrinkage of the composites appeared to have a much stronger correlation with a shear bond strength to dentin than to enamel. The weak mechanical properties and bond strengths of flowable composites in the early stage after polymerization must be taken into account when using them in the clinic. In addition, clinicians should be aware that polymerization shrinkage of flowable composites can still lead to the formation of gaps and failure of adaptation to the cavity regardless of the type of composite.
Details
- Title: Subtitle
- Relationships between Flexural and Bonding Properties, Marginal Adaptation, and Polymerization Shrinkage in Flowable Composite Restorations for Dental Application
- Creators
- Akimasa Tsujimoto - Department of Operative Dentistry, University of Iowa College of Dentistry, 801 Newton Rd., Iowa City, IA 52242, USAMasao Irie - Department of Biomaterials, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, Kita-ku, Okayama 700-8525, JapanErica Cappelletto Nogueira Teixeira - Department of Operative Dentistry, University of Iowa College of Dentistry, 801 Newton Rd., Iowa City, IA 52242, USACarlos Alberto Jurado - Woody L. Hunt School of Dental Medicine, Texas Tech University Health Sciences Center El Paso, 5001 El Paso Drive, El Paso, TX 79905, USAYukinori Maruo - Department of Occulusion and Removable Prothodontics, Okayama University, 2-5-1, Shikata-cho, Kita-ku, Okayama 700-8558, JapanGoro Nishigawa - Department of Occulusion and Removable Prothodontics, Okayama University, 2-5-1, Shikata-cho, Kita-ku, Okayama 700-8558, JapanTakuya Matsumoto - Department of Biomaterials, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, Kita-ku, Okayama 700-8525, JapanFranklin Garcia-Godoy - Department of Biosciene Reserach, University of Tennessee Health Science Center, 875 Union Ave., Memphis, TN 38163, USA
- Resource Type
- Journal article
- Publication Details
- Polymers, Vol.13(2613), p.2613
- DOI
- 10.3390/polym13162613
- PMID
- 34451153
- PMCID
- PMC8398176
- NLM abbreviation
- Polymers (Basel)
- eISSN
- 2073-4360
- Publisher
- MDPI AG
- Language
- English
- Date published
- 08/01/2021
- Academic Unit
- Prosthodontics; Operative Dentistry
- Record Identifier
- 9984176686102771
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