Localized and Generalized Simulated Wear of Resin Composites

Ww, Barkmeier; Takamizawa, Toshiki; Erickson, Robert L.; Tsujimoto, Akimasa; Latta, Mark; Miyazaki, Masashi

doi:10.2341/13-155-l

Cited by 25 publications

(19 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous studies utilizing the generalized (bulk) wear model have used 400,000 cycles for testing of resin-based materials. [18][19][20][21][22][23] Leinfelder and Suzuki 22 have reported that for resin composite materials, there was a high level of agreement between wear generated with 400,000 cycles in the Alabama simulator and 3 years of clinical service. Over the years, most of the laboratory testing with the Alabama machine has been done using 400,000 cycles.…”

Section: Discussionmentioning

confidence: 99%

“…Barkmeier and others [18][19][20] have conducted several studies with the generalized (bulk) wear model used in this study to evaluate the wear resistance of resin composite materials. The new slit or gap model was used in the present study to more closely parallel a clinical situation in the assessment of wear resistance of self-adhesive resin cements.…”

Section: Discussionmentioning

confidence: 99%

“…The methodology for sample preparation and the generalized wear model was previously described by Barkmeier and others. [18][19][20] In summary, stainless-steel custom fixtures with cavities 4.5 mm in diameter and 4 mm deep were used to hold the resin cement materials. Twenty specimens for each resin cement were light-cured in two increments of approximately 2 mm for 40 seconds with a Spectrum 800 curing unit (Dentsply Caulk, Milford, DE, USA) set at 600 mW/cm 2 .…”

Section: Generalized (Bulk) Wear Simulationmentioning

confidence: 99%

“…[15][16][17] Technology has rapidly advanced for assessing simulated laboratory wear by the introduction of noncontact optical profilometers and enhanced computer software for data analysis. 18 In addition, a new marginal slit (gap) model was developed for laboratory-generalized wear (contact-free area [CFA] wear) simulation in an effort to learn more about the wear resistance of newer-generation self-adhesive resin cements. The purpose of this study was to use the newly developed slit (gap) wear model and an established generalized (bulk) wear model to assess relative wear characteristics of newer dual-cure selfadhesive resin cements.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Simulated Wear of Self-Adhesive Resin Cements

Takamizawa

Latta

et al. 2016

Operative Dentistry

Self Cite

View full text Add to dashboard Cite

One of the primary areas of concern with luting agents is marginal gap erosion and attrition. The purpose of this laboratory study was to evaluate bulk and marginal slit (gap) generalized wear of self-adhesive resin cements. Three self-adhesive resin cements were used in this study: G-CEM LinkAce (LA), Maxcem Elite (ME), and RelyX Unicem2 Automix (RU). A custom stainless-steel fixture with a cavity 4.5 mm in diameter and 4 mm deep was used for simulated generalized (bulk) wear. For simulated marginal gap wear, a two-piece stainless-steel custom fixture was designed with a slit (gap) 300 μm wide and 3 mm in length. For both wear models, 20 specimens each for each of the three adhesive cements were made for both light-cure and chemical-cure techniques. The cured cements were polished with a series of carbide papers to a 4000-grit surface and subjected to 100,000 cycles using the slit (gap) wear model and 400,000 cycles for generalized (bulk) wear in a Leinfelder-Suzuki (Alabama machine) wear simulator (maximum load of 78.5 N). Flat-ended stainless-steel antagonists were used in a water slurry of poly(methylmethacrylate) beads for simulation of generalized contact-free area wear with both wear models. Before and after the wear challenges, the specimens were profiled with a Proscan 2100 noncontact profilometer, and wear (volume loss [VL] and mean facet depth [FD]) was determined using AnSur 3D software. Two-way analysis of variance (ANOVA) and Tukey post hoc tests were used for data analysis for the two wear models. Scanning electron microscopy (SEM) was used to examine polished surfaces of the resin cements and the worn surfaces after the wear challenges. The two-way ANOVA of VL using the generalized (bulk) wear model showed a significant effect among the three resin cement materials for the factor of resin cement (p<0.001) and the interaction of the cement and cure method (p<0.001), but not for the cure method (p=0.465). The two-way ANOVA for FD also found a significant difference for the factor of resin cement (p<0.001) and the interaction of the resin cement and cure method (p<0.001), but not for the cure method (p=0.277). The simulated generalized (bulk) wear for the light-cure groups was as follows: VL (mm(3)): RU 0.631 (0.094), LA 0.692 (0.112), and ME 1.046 (0.141) and FD (μm): RU 43.6 (6.5), LA 47.0 (7.7), and ME 72.5 (9.9). The simulated generalized (bulk) wear for the chemical-cure groups was as follows: VL (mm(3)): LA 0.741 (0.105), RU 1.231 (0.234), and ME 1.305 (0.143) and FD (μm): LA 50.7 (7.2), RU 84.5 (16.1), and ME 91.7 (10.2). Simulated wear using the slit (gap) model for the light-cure groups was as follows: VL (mm(3)): RU 0.030 (0.006), LA 0.031 (0.006), and ME 0.041 (0.009) and FD (μm): RU 49.6 (5.7), LA 57.2 (8.4), and ME 70.9 (10.7). The wear values for the chemical-cure slit (gap) groups were as follows: VL (mm(3)): LA 0.031 (0.004), ME 0.038 (0.007), and RU 0.045 (0.009) and FD (μm): LA 53.9 (6.7), ME 63.5 (9.1), and RU 74.2 (12.9). Pearson correlation tests revealed a strong relationship be...

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Generalized (Bulk) Wear Simulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Simulated Wear of Self-Adhesive Resin Cements

Takamizawa

Latta

et al. 2016

Operative Dentistry

Self Cite

View full text Add to dashboard Cite

show abstract

“…One of these methods was the Alabama method, which was developed at the University of Alabama (22). Barkmeier et al (27) have recently developed the simulated localized wear, which was used by Latta et al (23), using a ProScan 2100 non-contact profilometer in conjunction with the AnSur 3D software for wear analysis. In the present study, this method was used to measure the simulated localized wear in the resin luting cements.…”

Section: Discussionmentioning

confidence: 99%

Simulated localized wear of resin luting cements for universal adhesive systems with different curing mode

et al. 2018

View full text Add to dashboard Cite

This study evaluated the simulated localized wear of resin luting cements for universal adhesive systems using different curing modes. Five resin luting cements for universal adhesive systems were evaluated and subsequently subjected to wear challenge in a Leinfelder-Suzuki wear simulation device. Overall, 20 specimens from each resin luting cement were photo-cured for 40 s (dual-cure group), and 20 specimens of each material were not photocured (chemical-cure group). Simulated localized wear was generated using a stainless steel ball-bearing antagonist in water slurry of polymethylmethacrylate beads. In addition, scanning electron microscopy (SEM) observations of resin luting cements and wear facets were conducted. Significant differences in simulated wear and SEM observations of wear facets were evident among the materials in the dual-and chemical-cure groups. The simulated wear and SEM observations of wear facets of G-CEM LinkForce and Panavia V5 were not influenced by the curing mode.SEM observations of resin luting cements were material dependent. In most cases, dual curing appears to ensure greater wear resistance of resin luting cements than chemical curing alone. The wear resistance of some resin luting cements appears to be material dependent and is not influenced by the curing mode.

show abstract

Physical and Mechanical Properties of BFC’s

Paolone

Vichi

2023

Bulk Fill Resin Composites in Dentistry

View full text Add to dashboard Cite

Localized and Generalized Simulated Wear of Resin Composites

Cited by 25 publications

References 32 publications

Simulated Wear of Self-Adhesive Resin Cements

Simulated Wear of Self-Adhesive Resin Cements

Simulated localized wear of resin luting cements for universal adhesive systems with different curing mode

Physical and Mechanical Properties of BFC’s

Contact Info

Product

Resources

About