In vitro wear of resin denture teeth

Hirano, Shusuke; May, Kenneth B.; Wagner, Warren L.; Hacker, Corrine H.

doi:10.1016/s0022-3913(98)70209-4

Cited by 64 publications

(73 citation statements)

References 16 publications

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“…Higher wear resistance of composite resin teeth compared to acrylic resin teeth was observed in some in vitro studies when loading with enamel antagonists [38,39]. In the COMP groups with the test conditions described at the beginning (axially loaded with enamel antagonist and laterally loaded with steel antagonist) as well as in all groups with PEEK showing the significant lowest values, the specimen geometry had a significant impact: crown specimens exhibited lower wear values than flat ones.…”

Section: Discussionmentioning

confidence: 81%

Two-body wear rate of PEEK, CAD/CAM resin composite and PMMA: Effect of specimen geometries, antagonist materials and test set-up configuration

et al. 2016

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Section: Discussionmentioning

confidence: 81%

Two-body wear rate of PEEK, CAD/CAM resin composite and PMMA: Effect of specimen geometries, antagonist materials and test set-up configuration

et al. 2016

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“…However, the credibility of laboratory simulations of toothbrushing is supported by the literature, that demonstrated similarity between laboratory results and clinical experiments 11 .…”

Section: Mechanical Properties Of Artificial Teethmentioning

confidence: 91%

“…These teeth are widely used due to their ease of handling, possibility of characterization, glossy surface after polishing, adequate color stability, easy fit, and good esthetic outcome [7][8][9][10] . However, major concerns exist regarding their wear resistance and ability to maintain a stable occlusal relationship over time [11][12][13] . Wear secondary to daily use may lead to changes in the vertical dimension of occlusion, decreased masticatory efficiency, loss of esthetics, and discomfort, as well as potential temporomandibular joint disorders, thus interfering with patient quality of life 2 .…”

Section: Introductionmentioning

confidence: 99%

“…Many studies have reported attempts by manufacturers to improve the properties of acrylic-resin artificial teeth by addition of various substances to the material 11,[17][18]23 with a view to improving wear resistance and, consequently, increasing the longevity of dental prosthetics and reducing the negative effects of material wear.…”

Section: Introductionmentioning

confidence: 99%

“…Some studies have shown the superiority of certain brands in terms of wear resistance 11 years of denture use, taking into account thrice-daily tooth brushing. Brushes and toothpaste slurry were replaced every 5,000 cycles, representing approximately 6 months of use 26 .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Artificial teeth: evaluation of wear resistance, microhardness and composition

Grando

Pacheco

Botega

et al. 2015

RGO, Rev. Gaúch. Odontol.

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ObjectiveTo evaluate the Knoop hardness, composition, and wear resistance of acrylic-resin artificial teeth exposed to mechanical toothbrushing. Methods Artificial under a 200-g load and at a frequency of 250 cycles per minute, using a soft-bristled toothbrush (IndicatorPlus 30, Oral-B) soaked in a 1:1 toothpaste/water slurry (Oral B Pró Saúde). Microhardness testing was performed using a 25-g load for 15 seconds in an HMV-2 hardness tester (Shimadzu). The composition of teeth from different brands was determined by scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDS) (Jeol JSM 5800). Results Wear results after mechanical brushing were compared by means of the paired t-test, whereas those obtained in microhardness testing were compared by ANOVA with Bonferroni correction. There was no statistically significant difference between brands in either trial. ConclusionComposition analysis revealed that all of the artificial teeth analyzed contain carbon and oxygen. Trilux and Soluut PX brand teeth also contain silicon; however, the presence of filler particles did not result in increased resistance.

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Factors affecting wear of composite resin denture teeth—24-month results from a clinical study

et al. 2011

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The objectives of this study were to measure the occlusal wear of composite resin denture teeth in patients wearing a complete denture and to evaluate factors affecting wear. Fifty participants provided with complete dentures in at least one jaw were included. Gypsum casts were made from preliminary vinyl polysiloxane impressions 4 weeks after insertion, then after 6 (t(1)), 12 (t(2)), and 24 months (t(3)). Three-hundred and three posterior denture teeth were evaluated after 24 months. Wear was measured indirectly, from the casts, by means of a three-dimensional laser scanner device. Sequential images of the occlusal surfaces were digitized and superimposed (occlusal matching). Statistical analysis was performed by the use of mixed regression models, with the patient being a random effect. Mean wear (median, interquartile range; micrometer) of the entire occlusal surface was 8 (19) at t(1), 18 (34) at t(2), and 40 (61) at t(3). Maximum vertical loss (median, interquartile range; micrometer) was 92 (112) at t(1), 146 (148) at t(2), and 226 (184) at t(3). The dental status of the opposing jaw and the nature of the opposing material significantly affected the wear of denture teeth at t (3). Gender, daily wearing time, jaw, and type of tooth had no significant effects on the extent of wear. Clinically relevant vertical loss of composite resin denture teeth occurs after 24 months. Considering the limitations of this study, wear of denture teeth was affected by dental status and opposing material. The results suggest that wear of composite resin denture teeth exceeds that of enamel.

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In vitro wear of resin denture teeth

Cited by 64 publications

References 16 publications

Two-body wear rate of PEEK, CAD/CAM resin composite and PMMA: Effect of specimen geometries, antagonist materials and test set-up configuration

Two-body wear rate of PEEK, CAD/CAM resin composite and PMMA: Effect of specimen geometries, antagonist materials and test set-up configuration

Artificial teeth: evaluation of wear resistance, microhardness and composition

Factors affecting wear of composite resin denture teeth—24-month results from a clinical study

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