The Experts below are selected from a list of 70578 Experts worldwide ranked by ideXlab platform
Nick Silikas - One of the best experts on this subject based on the ideXlab platform.
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shrinkage stresses generated during Resin Composite applications a review
Journal of Dental Biomechanics, 2010Co-Authors: Luis Felipe Jochims Schneider, Larissa Maria Cavalcante, Nick SilikasAbstract:Many developments have been made in the field of Resin Composites for dental applications. However, the manifestation of shrinkage due to the polymerization process continues to be a major problem. The material's shrinkage, associated with dynamic development of elastic modulus, creates stresses within the material and its interface with the tooth structure. As a consequence, marginal failure and subsequent secondary caries, marginal staining, restoration displacement, tooth fracture, and/or post-operative sensitivity are clinical drawbacks of Resin-Composite applications. The aim of the current paper is to present an overview about the shrinkage stresses created during Resin-Composite applications, consequences, and advances. The paper is based on results of many researches that are available in the literature.
Jimmy C.m. Hsiao - One of the best experts on this subject based on the ideXlab platform.
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Review: Resin Composite filling
Materials, 2010Co-Authors: Keith H.s. Chan, Yanjie Mai, Harry Kim, Keith C.t. Tong, Desmond Ng, Jimmy C.m. HsiaoAbstract:The leading cause of oral pain and tooth loss is from caries and their treatment include restoration using amalgam, Resin, porcelain and gold, endodontic therapy and extraction. Resin Composite restorations have grown popular over the last half a century because it can take shades more similar to enamel. Here, we discuss the history and use of Resin, comparison between amalgam and Resin, clinical procedures involved and finishing and polishing techniques for Resin restoration. Although Resin Composite has aesthetic advantages over amalgam, one of the major disadvantage include polymerization shrinkage and future research is needed on reaction kinetics and viscoelastic behaviour to minimize shrinkage stress.
Keith H.s. Chan - One of the best experts on this subject based on the ideXlab platform.
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Review: Resin Composite filling
Materials, 2010Co-Authors: Keith H.s. Chan, Yanjie Mai, Harry Kim, Keith C.t. Tong, Desmond Ng, Jimmy C.m. HsiaoAbstract:The leading cause of oral pain and tooth loss is from caries and their treatment include restoration using amalgam, Resin, porcelain and gold, endodontic therapy and extraction. Resin Composite restorations have grown popular over the last half a century because it can take shades more similar to enamel. Here, we discuss the history and use of Resin, comparison between amalgam and Resin, clinical procedures involved and finishing and polishing techniques for Resin restoration. Although Resin Composite has aesthetic advantages over amalgam, one of the major disadvantage include polymerization shrinkage and future research is needed on reaction kinetics and viscoelastic behaviour to minimize shrinkage stress.
Luis Felipe Jochims Schneider - One of the best experts on this subject based on the ideXlab platform.
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Clinical Longevity of Direct Resin Composite Restorations
Dental Composite Materials for Direct Restorations, 2017Co-Authors: Rafael R. Moraes, Maximiliano Sérgio Cenci, Luis Felipe Jochims SchneiderAbstract:Dental restorations are subjected to various challenges in the oral environment virtually as soon as the placement is complete. The restorative complex experiences a cascade of events over the first 24 to 48 hours post-restoration until reaching equilibrium. Over time, biofilms of multiple composition and cariogenic abilities accumulate as a cyclic event. Acidic, abrasive as well as mechanical stresses of different extents and magnitudes during mastication exert additional challenges on Composite restorations. Thermal, mechanical and chemical aging processes all adversely affect restorations and in certain cases lead to failure. Can we predict or postpone failures? This chapter addresses factors related to the clinical longevity of direct Resin Composite restorations, including recent data from clinical studies, the meaning of clinical failures, the optimal restorative Resin Composite, the expected clinical lifespan of restorations and answered/unanswered questions concerning the intraoral performance of direct Resin Composite restorations. The chapter is concluded addressing strategies to improve the clinical longevity of Resin Composite restorations.
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shrinkage stresses generated during Resin Composite applications a review
Journal of Dental Biomechanics, 2010Co-Authors: Luis Felipe Jochims Schneider, Larissa Maria Cavalcante, Nick SilikasAbstract:Many developments have been made in the field of Resin Composites for dental applications. However, the manifestation of shrinkage due to the polymerization process continues to be a major problem. The material's shrinkage, associated with dynamic development of elastic modulus, creates stresses within the material and its interface with the tooth structure. As a consequence, marginal failure and subsequent secondary caries, marginal staining, restoration displacement, tooth fracture, and/or post-operative sensitivity are clinical drawbacks of Resin-Composite applications. The aim of the current paper is to present an overview about the shrinkage stresses created during Resin-Composite applications, consequences, and advances. The paper is based on results of many researches that are available in the literature.
Bogna Stawarczyk - One of the best experts on this subject based on the ideXlab platform.
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Measuring the polymerization stress of self-adhesive Resin Composite cements by crack propagation
Clinical Oral Investigations, 2020Co-Authors: Felicitas Wiedenmann, Fabian Becker, Marlis Eichberger, Bogna StawarczykAbstract:Objectives To test the polymerization stress of nine self-adhesive Resin Composite cements (G-CEM, iCEM, Bifix SE, Maxcem Elite, PANAVIA SA, SoloCem, SmartCem 2, SpeedCEM, RelyX Unicem 2) and one glass ionomer cement (control group; Ketac Cem). Materials and methods The crack propagation of a feldspar ceramic ( n = 130) was determined by measuring crack lengths that originated from Vickers indentations, prior to and after the application and polymerization of the self-adhesive Resin cements. Results for crack propagation were converted to polymerization stress values, and statistical analysis was performed using one-way ANOVA followed by Scheffé post hoc test. Results SmartCem 2 presented higher stress values than iCEM, SoloCem, and Ketac Cem, while Ketac Cem showed lower values than Bifix SE, Maxcem Elite, SmartCem 2, SpeedCEM, and RelyX Unicem 2. Conclusions Self-adhesive Resin Composite cements differ in their polymerization stress, which may affect the durability of the restoration. For restorations made from ceramics with lower flexural strength, such as feldspar ceramics, Resin Composite cement materials with less polymerization stress should be preferred. Clinical Relevance As a high polymerization shrinkage may increase crack propagation, the determination of the polymerization stress of self-adhesive Resin Composite cements employed for fixing all-ceramic restorations is an important factor.