Influence of the ceramic translucency on the relative degree of conversion of a direct composite and dual-curing resin cement through lithium disilicate onlays and endocrowns

被引:9
作者
de Kuijper, Maurits C. F. M. [1 ,2 ]
Ong, Yori [1 ]
Gerritsen, Tobias [1 ]
Cune, Marco S. [1 ,3 ,4 ]
Gresnigt, Marco M. M. [1 ,2 ]
机构
[1] Univ Groningen, Univ Med Ctr Groningen, Ctr Dent & Oral Hyg, Dept Restorat Dent & Biomat, Antonius Deusinglaan 1, NL-9713 AV Groningen, Netherlands
[2] Martini Hosp, Dept Special Dent Care, Groningen, Netherlands
[3] St Antonius Hosp Nieuwegein, Dept Oral Maxillofacial Surg Prosthodont & Specia, Nieuwegein, Netherlands
[4] Univ Med Ctr Utrecht, Dept Oral Maxillofacial Surg Prosthodont & Specia, Utrecht, Netherlands
关键词
Polymerization; Resin composites; Resin cement; Curing lights; Dental; Tooth; Nonvital; Spectrophotometry; LIGHT; INLAYS; MICROHARDNESS; THICKNESS;
D O I
10.1016/j.jmbbm.2021.104662
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Introduction: The goal of this study was to investigate the influence of the ceramic translucency, restoration type and polymerization time on the relative degree of conversion of a dual-curing resin cement and a conventional microhybrid resin composite using a high-power light-curing device. Methods and materials: Two 4.0 mm thick onlay (O) and two 7.5 mm thick endocrown (E) lithium disilicate restorations in high and low translucency (HT/LT) were fabricated on a decapitated molar. The pulp chamber was prepared to accommodate a 2 mm layer of a microhybrid resin composite (MHC) or dual-curing resin cement (DCC). Composite specimens were light-cured (n = 15; 1200 mW/cm2) without or through an onlay or endocrown restoration. Fourier-transform infrared spectroscopy (FTIR) absorbance curves were collected for the same composite specimen after 3 x 20, 3 x 40, 3 x 60 and 3 x 90 s of light-curing. The relative degree of conversion (DC%) was calculated and results analyzed using Kruskal-Wallis test and Friedman's ANOVA. Alpha was set at 0.05. Results: After 3 x 60 s, the DC of MHC was significantly lower (p = 0.03; r = 0.61) under LT/EC restorations (Mdn: 77.8%) than HT/EC restorations (Mdn: 95.2%). DC of the DCC was not significantly affected by the ceramic translucency or restoration type. MHC had a significant higher DC than DCC under the HT/O, LT/O and HT/E restorations. There were no significant differences between MHC and DCC cured through LT/E restorations. Conclusion: DC for DCC was not significantly affected by the ceramic translucency or restoration type. DC for MHC was significantly lower for LT/EC than HT/EC restorations after 3 x 60s polymerization, but not different for the high translucent restorations and low translucent onlays. Clinical relevance: the use of light-curing microhybrid composite for bonding high translucent onlays and endocrowns and low translucent onlays seems feasible.
引用
收藏
页数:8
相关论文
共 30 条
[1]   Effect of Ceramic Veneer Opacity and Exposure Time on the Polymerization Efficiency of Resin Cements [J].
Archegas, L. R. P. ;
Caldas, D. B. de Menezes ;
Rached, R. N. ;
Soares, P. ;
Souza, E. M. .
OPERATIVE DENTISTRY, 2012, 37 (03) :281-289
[2]  
Barabanti Nicola, 2015, J Clin Exp Dent, V7, pe54, DOI 10.4317/jced.51604
[3]  
Bindl A, 1999, J Adhes Dent, V1, P255
[4]  
Bindl A, 2005, INT J PROSTHODONT, V18, P219
[5]   Up to 12 years clinical evaluation of 197 partial indirect restorations with deep margin elevation in the posterior region [J].
Bresser, R. A. ;
Gerdolle, D. ;
van den Heijkant, I. A. ;
Sluiter-Pouwels, L. M. A. ;
Cune, M. S. ;
Gresnigt, M. M. M. .
JOURNAL OF DENTISTRY, 2019, 91
[6]  
Burke F J Trevor, 2002, J Adhes Dent, V4, P7
[7]  
Collares FM, 2014, BRAZ ORAL RES, V28, P9
[8]  
Faria-e-Silva AL, 2017, J PROSTHET DENT, V118, P631, DOI 10.1016/j.prosdent.2016.12.013
[9]   Light curing through glass ceramics with a second- and a third-generation LED curing unit: effect of curing mode on the degree of conversion of dual-curing resin cements [J].
Flury, Simon ;
Lussi, Adrian ;
Hickel, Reinhard ;
Ilie, Nicoleta .
CLINICAL ORAL INVESTIGATIONS, 2013, 17 (09) :2127-2137
[10]  
Frankenberger R, 2000, OPER DENT, V25, P459