&lt;i&gt;In vitro&lt;/i&gt; wear of flowable resin composite for posterior restorations

Shinkai, Koichi; Taira, Yoshihisa; Suzuki, Shiro; Suzuki, Masashi

doi:10.4012/dmj.2015-080

Cited by 17 publications

(20 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Our previous study using the same wear simulator demonstrated that the two-body wear value of the flowable resin composite containing large sized fillers was significantly higher than those containing smaller sized fillers 17 . Moreover, the other previous study also demonstrated that the flowable resin composite containing large fillers showed significantly deeper defects for cyclic impact loadings compared with those containing small fillers 16 .…”

Section: Discussionmentioning

confidence: 92%

“…On the other hand, Sumino, et al 18 (2013) reported that the localized wear value of the flowable resin composite containing extra-small sized fillers (0.016 and 0.2 μm) was significantly lower than those containing larger sized fillers (3 and 20 μm). Our previous study 17 showed that a flowable resin composite containing fillers of 0.8 μm mean size demonstrated significantly better localized wear resistance compared with that containing fillers of 3 μm mean size. Thus, the inclusion of a smaller sized filler may be advantageous compared with a large sized filler for localized wear resistance of flowable resin composites.…”

Section: Discussionmentioning

confidence: 97%

“…Our previous study 17 , which examined three- and two-body wear values of flowable resin composites for posterior restoration using a mechanical loading device, demonstrated that the wear resistance of the flowable resin composite containing nanofillers or spherical fillers was equivalent to that of a universal resin composite used as a control. The study also suggested that the size and shape of fillers in the flowable resin composite might influence both three- and two-body wear resistances.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of filler size and filler loading on wear of experimental flowable resin composites

et al. 2018

Self Cite

View full text Add to dashboard Cite

The relationship between wear resistance and filler size or filler loading was clarified for the universal resin composite; however, their relationship in flowable resin composites has not been clarified.ObjectivesThe purpose of this study was to investigate the effect of filler size and filler loading on wear of experimental flowable resin composites by using a cyclic loading device.Material and MethodsNine experimental flowable resin composites consisting of three different sizes (70, 200 and 400 nm) and loading (50, 55 and 60 wt%) of filler were prepared. Bowl-shaped cavities were prepared on a flat surface of ceramic blocks using a No. 149 regular cut diamond point. The cavities were treated with a silane coupling agent and an all-in-one adhesive and then filled with each experimental flowable resin composite. The restored surfaces were finished and polished with a 1500-grit silicon carbide paper. The specimens were subjected to an in vitro two-body wear test using a cyclic loading device. The localized worn surfaces were evaluated at 10,000, 20,000, 30,000, and 40,000 cycles using a computer-controlled three-dimensional measuring microscope (n=5). The volumetric wear loss of the materials was calculated automatically by the equipment. Data were statistically analyzed with two-way ANOVA and post hoc Tukey test.ResultsTwo-way ANOVA showed that the filler size significantly influenced wear volume (p<0.003), but the filler loading did not have a significant effect (p>0.05). A post hoc Tukey test detected significant differences in filler size between 70 nm and 400 nm, and 200 nm and 400 nm (p<0.007).ConclusionThe experimental flowable resin composite containing a mean filler size of 400 nm exhibited significantly lower wear resistance in two-body wear compared with those containing mean filler sizes of 200 nm or 70 nm.

show abstract

Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of filler size and filler loading on wear of experimental flowable resin composites

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…Whereas in closed phase, the teeth make contact with the food bolus and prolong until the jaw initiates to open. In the normal conditions, chewing loads vary in the range from 10 N to 20 N, but at the end of biting cycle loads reach in the range from 50 N to 150 N. Usually, the highest chewing force is 100 N. According to Shinkai et al [24], chewing load in general varies from 20 N to 120 N. Also, it was reported that the average loads on the occlusal surface are informed to be 66 N and biting forces can go as high as 90 N [25].…”

Section: Effect Of Filler Content On the Compressive Strength Ofmentioning

confidence: 99%

Effect of adding nanosilica particulate filler on the wear behavior of dental composite

et al. 2017

View full text Add to dashboard Cite

The aim of this study was to fabricate BisGMA based nanosilica filled dental composites and to study the effect of varying nanosilica filler content on their wear characteristics. The composites were developed by varying filler content of silane treated nanosilica from 0 to 9 wt%, into the resin matrix consisting of 51 wt% Bisphenol‐A glycidyl methacrylate, 46.5 wt% Tri‐ethylene glycol dimethacrylate, 0.24 wt% Camphorquinone, 1.5 wt% Butyl hydroxyl toluene and 0.76 wt% Dimethylamino ethyl methacrylate. The hardness was determined using Vickers's micro hardness tester. The two body abrasive wear experiments were performed in the artificial saliva medium as per Taguchi Orthogonal Array and steady state condition by varying parameters such as filler content, normal load, and chewing speed. The finding of results indicated that the wear resistance and hardness were improved with increase in filler fraction. The dental composite filled with 9 wt% of nanosilica filler exhibited maximum hardness (31.4 HV), maximum compression strength (360.5 MPa) and flexural strength (120.5 MPa) and minimum volumetric wear rate. Also, the wear volume increased with the increase in normal load, chewing speed and number of cycles but decreased with the increase in filler content. Statistical significance of each factor as per generalized linear model of Analysis of Variance showed that filler content was the most influencing factor followed by applied normal load, numbers of cycle and chewing speed. Worn surfaces were studied using a scanning electron microscope (SEM) to give an insight into the wear mechanisms. POLYM. COMPOS., 39:E332–E341, 2018. © 2017 Society of Plastics Engineers

show abstract

“…A recent clinical study [102] reported that the flowable and conventional composites used in that study had similar clinical efficacy after two years of service when placed as Class I occlusal restorations having isthmus widths less than one-half the intercuspal distance. Other studies [103] , [104] have examined the wear of flowable resin composites for posterior teeth using various types of wear machines. Sumino et al [103] compared flowable resin composites for posterior teeth, measuring the localized wear using an Alabama wear testing machine and the flexural properties by following ISO specifications.…”

Section: Current Insight Into the Wear Of Various Types Of Resin Compmentioning

confidence: 99%

Wear of resin composites: Current insights into underlying mechanisms, evaluation methods and influential factors

Tsujimoto

Barkmeier

Fischer

et al. 2018

Japanese Dental Science Review

103

View full text Add to dashboard Cite

SummaryThe application of resin composites in dentistry has become increasingly widespread due to the increased aesthetic demands of patients, improvements in the formulation of resin composites, and the ability of these materials to bond to tooth structures, together with concerns about dental amalgam fillings. As resistance to wear is an important factor in determining the clinical success of resin composite restoratives, this review article defines what constitutes wear and describes the major underlying phenomena involved in this process. Insights are further included on both in vivo and in vitro tests used to determine the wear resistance of resin composite and the relationships between these tests. The discussion focuses on factors that contribute to the wear of resin composite. Finally, future perspectives are included on both clinical and laboratory tests and on the development of resin composite restorations.

show abstract

<i>In vitro</i> wear of flowable resin composite for posterior restorations

Cited by 17 publications

References 17 publications

Effect of filler size and filler loading on wear of experimental flowable resin composites

Effect of filler size and filler loading on wear of experimental flowable resin composites

Effect of adding nanosilica particulate filler on the wear behavior of dental composite

Wear of resin composites: Current insights into underlying mechanisms, evaluation methods and influential factors

Contact Info

Product

Resources

About