Effect of Incremental Filling Technique on Adhesion of Light-cured Resin Composite to Cavity Floor

Chikawa, Hirokazu; Inai, Norimichi; Cho, Eitetsu; Kishikawa, Ryuzo; Otsuki, Masayuki; Foxton, Richard M.; Tagami, Junji

doi:10.4012/dmj.25.503

Cited by 23 publications

(15 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Chikawa et al 40) demonstrated that the first increment of composite on the polymerized bonding layer might have played the most important role with regards to adherence to the cavity floor. They suggested that the first increment would undergo less volumetric shrinkage than the bulk filled material and the subsequent increment could fill any space resulting from contraction of the preceding increment.…”

Section: Discussionmentioning

confidence: 99%

“…Incremental filling techniques are expected to ensure satisfactory polymerization of light-cured composite resins in deep preparations 38) . In addition, an incremental filling technique ought to be effective in reducing the C-factor value (the ratio of bonded to unbonded surfaces) 39,40) and preventing gap formation 39) . A dual-cure composite core material was used in this study, while other researchers evaluated this technique using a light-cure condensable composite.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of filling technique and curing mode on the bond strengths of composite cores to pulpal floor dentin

et al. 2010

Self Cite

View full text Add to dashboard Cite

This study evaluated the influence of filling technique and curing mode on the microtensile bond strengths (MTBS) of composite cores to pulpal floor dentin. Access cavities of human molars with pulpal floor dentin were restored with a two-step self-etch adhesive system, Clearfil Liner Bond 2V and a composite core, Clearfil DC Core Automix, using different filling techniques and curing strategies. A flowable resin composite, Clearfil Flow FX was placed on the cured adhesive resin prior to restoration with a composite core. Packing the composite in the access cavity was performed in bulk with or without light curing or using an incremental technique with light curing. Microtensile bond strengths to pulpal floor dentin were measured after 24 hours storage in water. Light curing and incremental technique had positive effects on the MTBSs. Lining with a flowable resin composite did not significantly improve the MTBSs, however, influenced the failure mode after debonding. Non-lining and bulk filling with chemical curing strategy provided the lowest MTBS.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Influence of filling technique and curing mode on the bond strengths of composite cores to pulpal floor dentin

et al. 2010

Self Cite

View full text Add to dashboard Cite

show abstract

“…Some studies have shown that the incremental filling technique for light-cured resin composites improved the bond strength between the resin composite and the dentin at the cavity floor 33) . The reasons were suggested to be reduced polymerization stress owing to a beneficial change in Cfactor 34) and adequate curing of resin composite at the deep part.…”

Section: Discussionmentioning

confidence: 99%

Effect of reinforcement with resin composite on fracture strength of structurally compromised roots

et al. 2009

View full text Add to dashboard Cite

This study was aimed at evaluating the fracture resistance of structurally compromised roots restored with four different post and core systems. Thirty-two bovine roots were uniformly shaped to simulate human mandibular premolar roots. The roots were divided into four groups based on the type of restoration: cemented cast post and core (Group MC), resin composite build-up (Group CR), resin composite and prefabricated glass fiber post build-up (Group FRC), and thick-layer dual-cured resin composite-reinforced smalldiameter tapered cast post and core (Group CRM). After a static loading test, the failure mode and fracture resistance were recorded. Group CRM (719.38±196.73 N) exhibited a significantly high fracture resistance compared with the other groups (Group MC: 429.56±82.43 N; Group CR: 349.56±66.21 N; Group FRC: 398.94±112.71 N; p<0.05). In conclusion, Group CRM exhibited better mechanical properties for structurally compromised roots with no ferrules, although all types of restorations showed non-restorable fracture modes.

show abstract

“…When shrinkage of a resin composite occurs within a bonded cavity, a contraction stress develops at the bonded interface 3) . In the clinical situation, these stresses have been reported to reduce bond strength 4,5) and quality of marginal adaptation 6,7) , as well as cause enamel crack formation 8) . However, there have been few studies that have evaluated the effect of contraction stresses on the mechanical properties of resin composites under a constrained condition.…”

Section: Introductionmentioning

confidence: 99%

Effect of Light Irradiation Time on the Mechanical Properties of Two Flowable Composites with Different Initiation Systems in Bonded and Unbonded Cavities

et al. 2007

Self Cite

View full text Add to dashboard Cite

The aim of this study was to evaluate the regional mechanical properties of flowable composites with different initiation systems under free and constrained conditions. Forty cavities fabricated in resin blocks with or without bonding treatment were bulk-filled with Estelite Flow Quick (EFQ) or Palfique Estelite LV (ELV), followed by light irradiation for 10 or 30 seconds. Each specimen was sliced to three slabs parallel to the long axis. The middle slab was serially sliced from top to bottom to harvest three sticks for ultimate tensile strength (UTS) measurement. The remaining slabs were polished for microhardness (KHN) measurement. The results indicated that the UTS and KHN of both flowable composites decreased toward the bottom of the cavity and increased with prolonged light irradiation time. At the upper cavity region, UТS values of the bonded groups were significantly lower than those of the unbonded groups, except for the 10-second light irradiation group of EFQ. As for KHN, the values did not change significantly for both flowable composites between the unbonded and bonded groups.

show abstract

Effect of Incremental Filling Technique on Adhesion of Light-cured Resin Composite to Cavity Floor

Cited by 23 publications

References 27 publications

Influence of filling technique and curing mode on the bond strengths of composite cores to pulpal floor dentin

Influence of filling technique and curing mode on the bond strengths of composite cores to pulpal floor dentin

Effect of reinforcement with resin composite on fracture strength of structurally compromised roots

Effect of Light Irradiation Time on the Mechanical Properties of Two Flowable Composites with Different Initiation Systems in Bonded and Unbonded Cavities

Contact Info

Product

Resources

About