Selecting VITA Classical Shades with the VITA 3D-Master Shade Guide.
Purpose: Although the VITA 3D-Master (3D) shade guide offers improved shade-matching performance, many dental materials are only available in VITA Classical (VC) shades. This study aimed to clarify whether it is possible to convert 3D shades determined by observers into VC shades (indirect method) w...
| Publicado en: | International Journal of Prosthodontics Vol. 27; no. 4; pp. 376 - 383 |
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| Autores principales: | , , , , , |
| Formato: | research randomized controlled trial Journal Article |
| Publicado: |
Quintessence Publishing Company Inc.
2014
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=103969710&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 103969710 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 08932174 GQZ jtl: International Journal of Prosthodontics issn: 08932174 maglogo: N pubinfo: dt: 2014 vid: 27 iid: 4 pid: 1935 pub: Quintessence Publishing Company Inc. place: Batavia, Illinois artinfo: ui: 103969710 2012643862 10.11607/ijp.3770 NLM25010883 103969710 ppf: 376 ppct: 7 formats: tig: atl: Selecting VITA Classical Shades with the VITA 3D-Master Shade Guide. aug: au: Zenthöfer, Andreas Wiesberg, Stefan Hildenbrandt, Achim Reinelt, Gerhard Rammelsberg, Peter Hassel, Alexander J sug: subj: Dental Porcelain Prosthesis Design Adult Algorithms Color Dental Technicians Dentists Female Human Male Middle Age Prosthesis Design Statistics and Numerical Data Spectrum Analysis Equipment and Supplies Students, Dental Young Adult Adult: 19-44 years Middle Aged: 45-64 years Female Male ab: Purpose: Although the VITA 3D-Master (3D) shade guide offers improved shade-matching performance, many dental materials are only available in VITA Classical (VC) shades. This study aimed to clarify whether it is possible to convert 3D shades determined by observers into VC shades (indirect method) without adding a clinically significant error in comparison with direct shade determination using the VC shade guide. Materials and Methods: Forty ceramic specimens were fabricated. L*a*b* values were recorded using a spectroradiometer. Sixty participants (35 dentists, 15 technicians, and 10 students) were recruited and asked to determine the shades of specimens using the VC and 3D shade guides under standardized conditions. Conversion tables were constructed by allocating the closest VC shade tab to every matched 3D shade and by use of an optimization algorithm (indirect methods). Differences between [Delta]E values for VC matches and for the indirect methods were evaluated using t tests. Results: A mean [Delta]E (SD) of 4.34 (2.00) for VC and 4.22 (2.21) for 3D was observed (P = .040). Compared with direct shade matching using VC, the indirect method with the optimized tables resulted in a mean [Delta]E of 4.32 (1.96), which was not significantly different (P = .586). Conclusions: Within the limitations of this study, the conversion tables were suitable for the determination of tooth color using the 3D shade guide followed by conversion into VC shades without adding a clinically significant error. pubtype: Academic Journal doctype: research randomized controlled trial Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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