Efficacy of a computerized shade selection system in matching the shade of anterior metal-ceramic crowns - A pilot study

Ariel J. Raigrodski, Gerard Jules Chiche, Hitoshi Aoshima, Charles F. Spiekerman

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Objective: The purpose of this study was to determine whether anterior crowns fabricated using a computerized shade selection system (ShadeScan, Cynovad) (experimental procedure) match adjacent teeth better than anterior crowns fabricated using conventional shade prescription and clinical slides (control). Method and Materials: Five subjects who required a crown to restore a maxillary central incisor were selected. Two metal-ceramic crowns were fabricated for each incisor, 1 using the experimental procedure and 1 using the control method. The shade selection method to be used for the first and second crowns was randomly assigned. The duration of each procedure was recorded. Each restoration was tried-in in a double-blind manner and evaluated for its level of match to adjacent teeth using modified Ryge criteria. Data were analyzed within each subject using descriptive statistics and paired f test (alpha = .05). Results: In 40% of the cases, both procedures did equally well. In the remaining 60% of the cases the control procedure (two-thirds of the cases) performed better than the experimental procedure (one-third of the cases). Duration of the control procedure was 14.4 ± 5 minutes, and the experimental procedure was 5.2 ± 3.3 minutes. A paired f test showed the difference was significant (P = .0045). Conclusion: The level of matching of crowns fabricated with the ShadeScan system was not different from crowns fabricated using the control. However, it took significantly less time to record the shade with the ShadeScan system.

Original languageEnglish (US)
Pages (from-to)793-802
Number of pages10
JournalQuintessence International
Volume37
Issue number10
StatePublished - Nov 1 2006

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Ceramics
Crowns
Metals
Incisor
Tooth
Prescriptions

Keywords

  • Ceramics
  • Clinical study
  • Computers
  • Crowns
  • Shade selection
  • ShadeScan

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Efficacy of a computerized shade selection system in matching the shade of anterior metal-ceramic crowns - A pilot study. / Raigrodski, Ariel J.; Chiche, Gerard Jules; Aoshima, Hitoshi; Spiekerman, Charles F.

In: Quintessence International, Vol. 37, No. 10, 01.11.2006, p. 793-802.

Research output: Contribution to journalArticle

Raigrodski, Ariel J. ; Chiche, Gerard Jules ; Aoshima, Hitoshi ; Spiekerman, Charles F. / Efficacy of a computerized shade selection system in matching the shade of anterior metal-ceramic crowns - A pilot study. In: Quintessence International. 2006 ; Vol. 37, No. 10. pp. 793-802.
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