The metameric effect of monolithic zirconias with varying yttrium ratios
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Purpose. This study aims to evaluate the accuracy of different shade selection techniques and determine the matching success of crown restorations fabricated using digital shade selection techniques. Materials and methods. Teeth numbers 11 and 21 were prepared on a typodont model. For the #11 tooth, six different crowns were fabricated with randomly selected colors and set as the target crowns. The following four test groups were established: Group C, where the visual shade selection was performed using the Vita 3D Master Shade Guide and the group served as the control; Group Ph, where the shade selection was performed under the guidance of dental photography; Group S, where the shade selection was performed by measuring the target tooth color using a spectrophotometer; and Group I, where the shade selection was performed by scanning the test specimens and target crowns using an intraoral scanner. Based on the test groups, 24 crowns were fabricated using different shade selection techniques. The ΔE values were calculated according to the CIEDE2000 (2:1:1) formula. The collected data were analyzed by means of a one-way analysis of variance. Results. For the four test groups (Groups C, Ph, S, and I), the following mean ΔE values were obtained: 2.74, 3.62, 2.13, and 3.5, respectively. No significant differences were found among the test groups. Conclusion. Although there was no statistically significant difference among the shade selection techniques, Group S had relatively lower ΔE values. Moreover, according to the test results, the spectrophotometer shade selection technique may provide more successful clinical results.
Abstract
Purpose. This study aims to evaluate the accuracy of different shade selection techniques and determine the matching success of crown restorations fabricated using digital shade selection techniques. Materials and methods. Teeth numbers 11 and 21 were prepared on a typodont model. For the #11 tooth, six different crowns were fabricated with randomly selected colors and set as the target crowns. The following four test groups were established: Group C, where the visual shade selection was performed using the Vita 3D Master Shade Guide and the group served as the control; Group Ph, where the shade selection was performed under the guidance of dental photography; Group S, where the shade selection was performed by measuring the target tooth color using a spectrophotometer; and Group I, where the shade selection was performed by scanning the test specimens and target crowns using an intraoral scanner. Based on the test groups, 24 crowns were fabricated using different shade selection techniques. The ΔE values were calculated according to the CIEDE2000 (2:1:1) formula. The collected data were analyzed by means of a one-way analysis of variance. Results. For the four test groups (Groups C, Ph, S, and I), the following mean ΔE values were obtained: 2.74, 3.62, 2.13, and 3.5, respectively. No significant differences were found among the test groups. Conclusion. Although there was no statistically significant difference among the shade selection techniques, Group S had relatively lower ΔE values. Moreover, according to the test results, the spectrophotometer shade selection technique may provide more successful clinical results.
참고문헌 (23)
- Özat PB, "Repeatability and reliability of human eye in visual shade selection", J Oral Rehabil, 40, pp.958~964 (2013)
- Igiel C, "Reliability of visual and instrumental color matching", J Esthet Restor Dent, 29, pp.303~308 (2017)
- Pecho OE, "Influence of gender on visual shade matching in dentistry", J Esthet Restor Dent, 29, pp.E15~E23 (2017)
- Pecho OE, "Visual and instrumental shade matching using CIELAB and CIEDE2000 color difference formulas", Dent Mater, 32, pp.82~92 (2016)
- Joshi R, "Shade matching ability of dental students using two visual light sources", Nepal Med Coll J, 19, pp.24~26 (2017)
- Blum SL, "A comparison of intraoral spectrophotometers-Are there user-specific differences?", J Esthet Restor Dent, 30, pp.442~448 (2018)
- Gargari M, "Zirconia : cementation of prosthetic restorations. Literature review", Oral Implantol(Rome), 3, pp.25~29 (2010)
- Sailer I, "Prospective clinical study of zirconia posterior fixed partial dentures : 3-year follow-up", Quintessence Int, 37, pp.685~693 (2006)
- Hein S, "Illuminant metamerism between natural teeth and zirconia restorations evaluated with a chromatic adaptation transform", J Prosthet Dent (2023)
- Lee YK, "Influence of illuminating and viewing aperture size on the color of dental resin composites", Dent Mater, 20, pp.116~123 (2004)
- Kuehni RG, "An experiment in visual scaling of small color differences", Color Res Appl, 4, pp.83~91 (1979)
- Güth JF, "Zirconia and its novel compositions : What do clinicians need to know?", Quintessence Int, 50, pp.512~520 (2019)
- Denry I, "Emerging ceramic-based materials for dentistry", J Dent Res, 93, pp.1235~1242 (2014)
- Dede DÖ, "Effect of brand and shade of resin cements on the final color of lithium disilicate ceramic", J Prosthet Dent, 117, pp.539~544 (2017)
- Blomlöf J, "Acid conditioning combined with single-component and two-component dentin bonding agents", Quintessence Int, 32, pp.711~715 (2001)
- Paravina RD, "Color difference thresholds in dentistry", J Esthet Restor Dent, 27(Suppl 1), pp.S1~S9 (2015)
- Hang GUO, "Influence of two light sources on the color of various kinds of ceramic materials", West China J Stomatol, 11(3), pp.192~194 (1993)
- Lee YK, "Metameric effect between resin composite and dentin", Dent Mater, 21, pp.971~976 (2005)
- Corcodel N, "Metameric effect between natural teeth and the shade tabs of a shade guide", Eur J Oral Sci, 118, pp.311~316 (2010)
- Brokos I, "Illuminant metameric effects on interbrand and intrabrand color differences of direct composite resins", J Prosthet Dent, 128, pp.1342~1349 (2022)
- Kim SH, "Metameric effect between dental porcelain and porcelain repairing resin composite", Dent Mater, 23, pp.374~379 (2007)
- Papageorgiou-Kyrana A, "Evaluation of color stability of preshaded and liquid-shaded monolithic zirconia", J Prosthet Dent, 119, pp.467~472 (2018)
- Sen N, "Microstructural, physical, and optical characterization of high-translucency zirconia ceramics", J Prosthet Dent, 123, pp.761~768 (2020)