Influence of curing modes on the degree of conversion and mechanical parameters of dual-cured luting agents

Bo, Yang; Huang, Qin; Holmes, Brian N.; Guo, Jiawen; Li, Yuping; Heo, Young Cheul; Chew, Hooi Pin; Wang, Yan; Fok, Alex

doi:10.1016/j.jpor.2019.06.002

Cited by 12 publications

(13 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dual‐cured resin cement contains both photoinitiators and chemical initiators. In self‐curing mode, a photoinitiator is inactive in the absence of light exposure 10,29 . Thus, the degree of conversion was compromised, which resulted in low bond strength.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of the resin‐coating technique on the bonding performance of self‐adhesive resin cements in single‐visit computer‐aided design/computer‐aided manufacturing resin restorations

Oda

Takahashi

Nikaido

et al. 2021

J Esthet Restor Dent

View full text Add to dashboard Cite

Objective This in vitro study investigated the influence of resin coating on the bonding performance of self‐adhesive resin cements in single‐visit computer‐aided design (CAD)/computer‐aided manufacturing (CAM) resin restorations. Materials and method CAD/CAM resin (1.5‐mm thick) was mounted on 20 noncoated and 20 resin‐coated human dentin surfaces using dual‐cured self‐adhesive resin cements (Panavia SA Cement Plus or Panavia SA Cement Universal, Kuraray Noritake Dental) in either self‐curing or dual‐curing mode. These specimens were sectioned into beam‐shaped sticks and subjected to microtensile bond strength tests after 24 h of water storage. The obtained data were statistically analyzed with three‐way analysis of variance (ANOVA) and t tests (α = 0.05). Results The three‐way ANOVA results revealed the significant influence of resin coating, resin cement, and curing mode. Resin coating and light curing led to higher bond strengths in almost all groups. Resin‐coated dentin with Panavia SA Cement Plus exhibited a mean bond strength greater than 35 MPa in both self‐curing and dual‐curing modes. Conclusions In single‐visit CAD/CAM resin restorations, resin coating, resin cement selection, and curing mode influenced the bonding performance of self‐adhesive resin cements. In addition, resin coating and light curing increased the bond strength of self‐adhesive resin cements. Resin coating and light curing are encouraged for predictable bonding performance of dual‐cured self‐adhesive resin cements in single‐visit CAD/CAM resin restorations.

show abstract

Section: Discussionmentioning

confidence: 99%

“…In self-curing mode, a photoinitiator is inactive in the absence of light exposure. 10,29 Thus, the degree of conversion was compromised, which resulted in low bond strength.…”

Section: Discussionmentioning

confidence: 99%

Influence of the resin‐coating technique on the bonding performance of self‐adhesive resin cements in single‐visit computer‐aided design/computer‐aided manufacturing resin restorations

Oda

Takahashi

Nikaido

et al. 2021

J Esthet Restor Dent

View full text Add to dashboard Cite

show abstract

“…In addition to increasing the packing content, polymerization shrinkage can also be reduced through clinical operations, such as the use of delayed illumination, etc. 33) .…”

Section: Discussionmentioning

confidence: 99%

Investigation of mechanical performances and polymerization shrinkage of dual-cured resin composites as core build-up material

et al. 2021

Self Cite

View full text Add to dashboard Cite

This study systematically compared the mechanical performances and polymerization shrinkage of two novel dual-cured resin composites (DCRC) with one conventional packable light-cured resin composite (LCRC) for their application as core build-up material by micro-hardness test, flexural strength test, push-out test, and digital image correlation analysis. The LCRC had a significantly higher micro-hardness (p<0.05) whereas the bond strength demonstrated no difference. The mean values of three materials ranged from 35.16 and 64.82 for the Vickers hardness and from 4.66 MPa to 11.53 MPa for the bond strength. The flexure strength of the three materials was not statistically different from each other. LCRC demonstrated 1.88% of volumetric shrinkage while the two DCRC showed 5.06% and 4.91%, respectively. In general, the DCRC demonstrated a comparable flexural strength and bond strength as the LCRC, however, the significant polymerization shrinkage of DCRC should be emphasized.

show abstract

“…Cement-Post had the lowest results when compared to the other assessed cements (p <0.01). This result can be attributed to the inhibition of oxygen and the increase of the inhibitor in the formulation of chemical cure cements, used to increase the working time of this material [7,9,14]. Therefore, the use of dual-cure cement should always be considered for possibly increasing DC through physical and chemical activation of the monomer system [3,5,9].…”

Section: Discussionmentioning

confidence: 99%

Assessment of Degree of Conversion and Knoop Microhardness of Different Resin Cementing Agents

Maia¹,

Silva²,

Takeuchi³

et al. 2021

TODENTJ

View full text Add to dashboard Cite

Background: There are still controversies in the literature as to which is the best resinous cementing agent. Due to this fact and the immense availability of types and brands of cementing agents, further studies are needed to evaluate the properties of these important dental materials. Objective: To assess the degree of monomer conversion (DC) and Knoop microhardness (KHN) of four resin cements: two conventional dual-cured resin cements (EnForce and RelyXARC); one self-etching cement (RelyXU100); and one chemically-activated cement (Cement-Post). Methods: 20 Pieces were made to assess KHN, and 20 to assess DC (n = 5). The DC was analyzed using a Fourier-transform infrared spectrometer, and KHN of the base and the top of the pieces were assessed using the Future-Tech microhardness tester. The data of KHN were statistically analyzed by two-factor ANOVA, and data related to DC were analyzed by the Kruskal-Wallis non-parametric test. The analysis of the correlation between KHN and DC of the cementing agents was performed by linear regression. Results: Dual-cured cements exhibited lower average KHN values at the base than at the top of the pieces (p <0.05). The self-etching cement had a significantly higher average KHN value than the other assessed cements (p <0.05). The DC of the dual-cured cement did not differ (p >0.05). The chemically-activated cement exhibited the lowest averages of KHN and DC values (p <0.05). Linear regression analysis indicated a strong correlation between DC and KNH (p = 0.043; R2 = 0.96); however, a specific hardness value could not be correlated to a specific DC value. Conclusion: Preferably, dual-cured resin cements (conventional or self-etching) should be used. Chemically-activated resin cements should be avoided due to their lower averages of DC and KHN values.

show abstract

Influence of curing modes on the degree of conversion and mechanical parameters of dual-cured luting agents

Cited by 12 publications

References 25 publications

Influence of the resin‐coating technique on the bonding performance of self‐adhesive resin cements in single‐visit computer‐aided design/computer‐aided manufacturing resin restorations

Influence of the resin‐coating technique on the bonding performance of self‐adhesive resin cements in single‐visit computer‐aided design/computer‐aided manufacturing resin restorations

Investigation of mechanical performances and polymerization shrinkage of dual-cured resin composites as core build-up material

Assessment of Degree of Conversion and Knoop Microhardness of Different Resin Cementing Agents

Contact Info

Product

Resources

About