Color stability of dental composite resin materials for crown and bridge veneers

Ruyter, I. Eystein; Nilner, Krister; Møller, Birger R.

doi:10.1016/s0109-5641(87)80081-7

Cited by 665 publications

(570 citation statements)

References 10 publications

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“…Specimens stored in water showed ΔE * values lower than 3.3 after 6 months (Table 2); this change may be considered clinically acceptable since 3.3 is a threshold for visual perception of ΔE * . 17 At this limit, ΔE * can be easily detected by laypersons. Here, we used the CIE L * a * b * system to evaluate ΔE * .…”

Section: Discussionmentioning

confidence: 99%

Translucency and color stability of resin composite and dental adhesives as modeling liquids – A one-year evaluation

et al. 2017

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The aim of this study is to evaluate the influence of modeling liquids on the translucency and color shade of resin composites (RCs) after one year of storage. RC specimens were prepared using either a conventional insertion technique (control; without modeling liquid) or a restorative dental modeling insertion technique (RDMIT) with dental adhesives as modeling liquids (Scotchbond ™ Multi-Purpose [SBMP; 3M ESPE] or Adper™ Single Bond 2 [SB; 3M ESPE]). The initial colors of the specimens were obtained with a digital spectrophotometer and the CIEL * a * b * color system, after which specimens were stored (37°C) in distilled water or red wine for 12 months. Color measurements were reassessed after 6 and 12 months of storage, and scanning electron microscopy was performed after 12 months. Translucency and color change (ΔE * ) were calculated and analyzed using ANOVA and Tukey's test (α = 5%). RC samples prepared via RDMIT showed a translucency similar to that of control samples. ΔE * was also less intense for RCs containing SBMP than for RCs containing SB. Specimens stored in wine showed a clear pattern of degradation, especially in the control group, and surface degradation seemed to be less intense for specimens prepared with SBMP and SB than for specimens without. Specimens stored in water did not show clear evidence of surface degradation. RDMIT appears to be an interesting approach to reduce ΔE * in RCs over time without negative effects on the translucency of the material. However, the modeling liquid should feature a hydrophobic composition, similar to that used in the SBMP group, the achieve the best results.

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Section: Discussionmentioning

confidence: 99%

Translucency and color stability of resin composite and dental adhesives as modeling liquids – A one-year evaluation

et al. 2017

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“…Under intraoral conditions the limit to clinical acceptability will be in the range of $2.8-3.7 DE units. [28][29][30] Considering that a DE value of more than 3.7 is regarded as a clinically detectable color difference, mean DE grade in the present study were easy to identify under intraoral conditions, which were more than 8.0 DE units (Table IV). Thus, it was definite and reliable to determine RB staining results according to the present shade guide.…”

Section: Discussionmentioning

confidence: 60%

Rose bengal staining in detection of oral precancerous and malignant lesions with colorimetric evaluation: A pilot study

Chen

et al. 2007

Intl Journal of Cancer

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Early detection of oral precancerous and malignant lesions is still a diagnostic challenge for most of clinicians, and ideal adjuncts for detection of these lesions are currently unavailable. Our preliminary study has indicated that rose bengal (RB) staining might have the potency as a diagnostic aid; however, its clinical significance and reliability in hospital-based population are still not clear. In the present study, we investigated the efficacy of RB staining in detection of oral precancerous and malignant lesions. RB staining was conducted in 132 patients, and staining results were determined by a 4-graded shade guide, which had been quantitatively measured in the 1976 CIEL*a*b* space by instrumental colorimetry. Histological examination was performed in 128 of 132 patients after RB staining. The sensitivity and specificity to detect epithelial dysplasia (DP) and oral squamous cell carcinoma were 93.9 and 73.7%, respectively. The positive and negative likelihood ratios were 3.570 and 0.082, respectively. Moreover, RB staining seemed promising to detect DP in oral leukoplakia, lichen planus and leukokeratosis. In this study, 5 of 6 DP or oral squamous cell carcinoma were identified by RB staining before histological examination. In conclusion, RB staining may be a valuable diagnostic test in detection of oral precancerous and malignant lesions. ' 2007 Wiley-Liss, Inc.Key words: rose bengal; early detection; oral squamous cell carcinoma; epithelial dysplasia; colorimetry It was estimated that cancer of the head and neck, including all oral, laryngeal and pharyngeal sites, is the fifth most common cancer, accounting for about 615,000 new cases annually. 1 About 40% of head and neck malignancies are known to be squamous cell carcinomas (SCCs) arising in the oral cavity, 1 and it has one of the lowest survival rates, 50%, within a 5-year period. 2 These survival rates have remained relatively unchanged for the past 3 decades, probably because of late recognition of the disease. Consequently, emphasis has been placed on early detection and diagnosis of precancerous lesions and early stages of oral cancer. Nevertheless, oral epithelial lesions have many different presentations, such that clinical variants require diagnostic tests beyond visual examination to obtain definitive diagnoses. [3][4][5] Adjuncts for detection of lesions and selection of biopsy sites include toluidine blue staining, exfoliative cytology and other recently emerging techniques. But because of various reasons, such as less effective when used in oral precancerous lesions, inevitably bewildered when equivocal results occurred, 4,6 these techniques have not been accepted all over the world at present.Rose bengal (RB), the 4,5,6,7-tetrachloro-2 0 ,4 0 ,5 0 ,7 0 -tetraiododerivative of fluorescein, has been widely used to diagnose various ocular surface disorders. 7 It has been believed to stain desquamated ocular epithelial cells, dead or degenerated cells but not healthy epithelial cells, or wherever there is poor protection of the surface e...

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“…After stain removing procedure, the measurements were repeated and color change was calculated using the same formula with 1 equal to color after stain removal. In reference to the results shown by previous studies (Seghi et al, 1989;Lieberman et al, 1995;Ruyter et al, 1987;Johnston and Kao, 1989), for the purpose of this study, a perceptible discoloration up to the value of DE * = 3.3 is referred to as clinically acceptable, above which color change is considered unacceptable.…”

Section: Color Measurementsmentioning

confidence: 87%

The effectiveness of four methods for stain removal from direct resin- based composite restorative materials

2014

Br Dent J

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Background/purpose: Few studies investigated the best method for removing stains from different types of resin-based composite restorations and compared them to the more recently introduced nanocomposites. This study compared the effect of four methods for stain removal from composite resins; finishing with Sof-lex disks, using pumice and brush, bleaching with 10% carbamide peroxide and 38% hydrogen peroxide.Materials and methods: Twenty disk specimens were prepared. Specimens were immersed in a staining solution for 3 weeks. The stained surfaces of five specimens from each RBC material were treated with one of the treatment procedures. Colorimetric measurements were taken using spectrophotometer prior to and after staining, and then repeated after surface treatments. Color difference values were calculated.Results: One-way ANOVA indicated significant differences in color change of the three composite resin materials following staining. Filtek Z250 showed the least susceptibility to discoloration followed by Renamel, Filtek Supreme was the material most prone to discoloration. Two-way ANOVA and Tukey's Post Hoc showed that all stain removing procedures except polishing with pumice, were able to return Filtek Z250 to clinically acceptable color difference. While bleaching with 38% carbamide peroxide was not effective with Renamel. Only pumice and 10% carbamide peroxide were able to return Renamel to clinically acceptable color difference.

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Color stability of dental composite resin materials for crown and bridge veneers

Cited by 665 publications

References 10 publications

Translucency and color stability of resin composite and dental adhesives as modeling liquids – A one-year evaluation

Translucency and color stability of resin composite and dental adhesives as modeling liquids – A one-year evaluation

Rose bengal staining in detection of oral precancerous and malignant lesions with colorimetric evaluation: A pilot study

The effectiveness of four methods for stain removal from direct resin- based composite restorative materials

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