Development of a stain shade guide to aid the measurement of extrinsic dental stain

International Journal of Dental Hygiene
K GadhiaJ Moran

Abstract

Accurate and reproducible assessment of extrinsic staining is pivotal to determining efficacy of some tooth whitening oral hygiene products. The aim of this study was: (1) to produce a stain shade guide to aid the in vitro and in vivo stain assessment (2) to assess intra- and inter-examiner reproducibility of stain assessment using the stain shade guide. Using chlorhexidine and tea, perspex and acrylic teeth specimens were stained. The amount of staining on the perspex was measured with a spectrophotometer and the values obtained were assigned to the stained acrylic teeth, which were made into a stain guide. Using clinical photographs and a group of 10 volunteers, stain area and intensity were assessed using the stain guide and the recognized Lobene stain index by two examiners. The degree of intra- and inter-examiner reproducibility for these measurements were assessed using Cohen's kappa statistics. For both the clinical examination and use of photographs, intra-examiner reproducibility for stain intensity was improved when using the stain guide compared with the Lobene Index. Similarly, when assessing inter-examiner reproducibility, stain intensity kappa values were greater using the stain guide (kappa = 0.82) compared with ...Continue Reading

References

Nov 1, 1990·Journal of Dental Research·W J O'BrienK M Boenke
Oct 1, 1968·The Journal of the American Dental Association·R R Lobene
Nov 10, 2000·Journal of Clinical Periodontology·L M MacphersonE Huntington
Jan 7, 2005·Journal of Oral Rehabilitation·Y H GuanA H Brook

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Citations

Aug 10, 2010·Journal of Dentistry·Shereen S AzerWilliam M Johnston
Jul 21, 2010·International Journal of Paediatric Dentistry·Rami FarahSheila Williams
Mar 12, 2013·Analytical and Bioanalytical Chemistry·Robert KöppenMatthias Koch

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