Acta Scientific Dental Sciences (ISSN: 2581-4893)

Research Article Volume 4 Issue 10

Impact of Digital Photography and Conventional Method on the Accuracy of Shade Matching in the Esthetic Zone (In Vivo Study)

Rawan Ferroukhi1*, Omaima S El Dein El-Mahallawi2 and Ahmed Naguib M Hussien3

1MSc Student of Fixed Prosthodontics, Division of Fixed Prosthodontics, Faculty of Dentistry, Cairo University, Cairo, Egypt
2Professor and Head of Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt
3Professor of Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University and Future University, Cairo, Egypt

*Corresponding Author: Rawan Ferroukhi, MSc Student of Fixed Prosthodontics, Division of Fixed prosthodontics, Faculty of Dentistry, Cairo University, Cairo, Egypt.

Received: September 02, 2020; Published: September 28, 2020



Statement of the Problem: Accuracy of shade matching using conventional shade guides is a concern because color perception is highly subjective. Also, entirely relying on the digital method for shade selection can result in a deviation of color interpretation which may have an impact on the device's repeatability and accuracy.

Aim: To evaluate digital photography's accuracy in improving shade matching compared to conventional methods (visual shade guide and spectrophotometer).

Methods: 27 e. max CAD restorations were fabricated for 9 patients. Each received 3 restorations representing three groups for shade selection methods (visual, spectrophotometer and digital photography), to match with the shade of the contra-lateral/adjacent tooth. The patient satisfaction and shade matching were assessed by VAS and modified USPHS criteria respectively. The data obtained was statistically analyzed by Friedman's test performed in categorical data.

Results: In shade matching, there was a statistically significant difference between the three restorations. Restorations in digital photography group showed the highest prevalence of Alpha score followed by Visual 3D Master group then Vita Easyshade group. Group Vita Easyshade was the only restorations with Charlie score. No Delta scores were found. Regarding patient's satisfaction, there was a statistically significant difference between the groups with least satisfaction in the Vita Easyshade group.

Conclusion: Digital photography’s impact in shade matching showed validity and reliability over the conventional methods and proved accuracy in terms of shade selection and surface characterization over the visual method. The spectrophotometer showed inconsistency in shade matching.

Keywords: Shade Selection; Shade Matching, Digital Photography, Spectrophotometer, Shade Guide



  1. John MT., et al. “Oral health-related quality of life in patients treated with fixed, removable, and complete dentures 1 month and 6 to 12 months after treatment”. International Journal of Prosthodontics 17 (2004): 503-511.
  2. Grossmann AC., et al. “Treatment with double crown-retained removable partial dentures and oral health-related quality of life in middle- and high-aged patients”. International Journal of Prosthodontics 20 (2007): 576-278.
  3. Baldwin DC. “Appearance and aesthetics in oral health”. Community Dentistry and Oral Epidemiology 8 (1980): 244-256.
  4. Samorodnitzky-Naveh GR., et al. “Patients' satisfaction with dental esthetics”. Journal of the American Dental Association 138 (2007): 805-808.
  5. Baharin SA., et al. “Anterior tooth shade selection procedure: influence of light sources and patient's position”. Sains Malaysiana1 (2013): 7-11.
  6. McLaren EA and Schoenbaum T. “Digital photography enhances diagnostics, communication, and documentation”. Compendium of Continuing Education in Dentistry (Jamesburg, NJ: 1995) 32 (2011): 36-38.
  7. Jarad FD., et al. “The use of digital imaging for colour matching and communication in restorative dentistry”. British Dental Journal1 (2005): 43-49.‏
  8. Goodlin R. “Photographic-assisted diagnosis and treatment planning”. Dental Clinics2 (2011): 211-227.
  9. Shammas M and Alla RK. “Color and shade matching in dentistry”. Trends in Biomaterials and Artificial Organs 4 (2011): 172-175.
  10. ABOU-STEIT Sameh., et al. “Evaluation of patient satisfaction and shade matching of Vita Suprinity versus lithium disilicate (E-max) ceramic crowns in the esthetic zone: a randomized controlled clinical trial”. F1000Research 371 (2019): 371.‏
  11. Fairchild MD and Reniff L. “Time course of chromatic adaptation for color-appearance judgments”. Journal of the Optical Society of America A: Optics, Image Science and Vision 12 (1995): 824-833.
  12. McLaren EA., et al. “A technique using calibrated photography and Photoshop for accurate shade analysis and communication”. Compendium of Continuing Education in Dentistry 38 (2017): 106-113.
  13. Özat P B., et al. “Repeatability and reliability of human eye in visual shade selection”. Journal of Oral Rehabilitation (2013).
  14. Parameswaran V., et al. “Comparison of accuracies of an intraoral spectrophotometer and conventional visual method for shade matching using two shade guide systems”. The Journal of the Indian Prosthodontic Society 16 (2016): 352-358.
  15. Clary JA., et al. “Influence of light source, polarization, education, and training on shade matching quality”. Journal of Prosthetic Dentistry 116 (2016): 91-97.
  16. Fondriest J. “Shade matching in restorative dentistry: the science and strategies”. International Journal of Periodontics and Restorative Dentistry5 (2003): 467-480.
  17. Kim-Pusateri S., et al. “Reliability and accuracy of four dental shade-matching devices”. The Journal of Prosthetic Dentistry 3 (2009): 193-199.
  18. Kim HK. “Evaluation of the repeatability and matching accuracy between two identical intraoral spectrophotometers: an in vivo and in vitro study”. The Journal of Advanced Prosthodontics3 (2018): 252-258.
  19. Miyajiwala J S., et al. “Comparison of photographic and conventional methods for tooth shade selection: A clinical evaluation”. The Journal of the Indian Prosthodontic Society3 (2017): 273.
  20. Hein S and Zangl M. “The use of a standardized gray reference card in dental photography to correct the effects of five commonly used diffusers on the color of 40 extracted human teeth”. International Journal of Esthetic Dentistry 2 (2016): 246-259.
  21. Etman M K and Woolford MJ. “Three-year clinical evaluation of two ceramic crown systems: A preliminary study”. Journal of Prosthetic Dentistry 103 (2010): 80-90.
  22. Chaiyabutr Y and Kois JC. “Effect of abutment tooth color, cement color, and ceramic thickness on the resulting optical color of a CAD/ CAM glass-ceramic lithium disilicate- reinforced crown”. Journal of Prosthetic Dentistry 105 (2011): 83-90.
  23. Shillingburg HT., et al. “Fundamentals of fixed prosthodontics”. (2012): 149-163.
  24. Kalantari MH., et al. “Evaluation of accuracy of shade selection using two spectrophotometer systems: Vita Easyshade and Degudent Shadepilot”. European Journal of Dentistry 11 (2007): 196-200.
  25. Li Q., et al. “In vivo spectroradiometric evaluation of color matching errors among five shade guides”. Journal of Oral Rehabilitation 36 (2009): 65-70.
  26. Zenthöfer A., et al. “Selecting VITA Classical Shades with the VITA 3D-Master Shade Guide”. International Journal of Prosthodontics 27 (2014): 376-382.
  27. Gasparik, C., et al. “Influence of light source and clinical experience on shade matching”. Clujul Medical1 (2014): 30.
  28. Curd F M., et al. “Comparison of the shade matching ability of dental students using two light sources”. The Journal of Prosthetic Dentistry6 (2006): 391-396.
  29. Joiner A. “Tooth color: a review of the literature”. Journal of Dentistry 32 (2004): 3-12.
  30. Pitel M L. “Optimizing Your Shade-Matching Success: Tips, Tools, and Clinical Techniques”. Dentistry Today9 (2015): 116-118.
  31. Jaju RA., et al. “Evaluating tooth color matching ability of dental students”. Journal of Dental Education 74 (2010): 1002-1010.
  32. Ristic I., et al. “Influence of Color Education and Training on Shade Matching Skills”. Journal of Esthetic and Restorative Dentistry 28 (2016): 287-294.
  33. Joshi R and Acharya J. “Shade Matching Ability of Dental Students Using Two Visual Light Sources”. Nepal Medical College Journal 19 (2017): 24-26.
  34. Chen H., et al. “A systematic review of visual and instrumental measurements for tooth shade matching”. Quintessence International 43 (2012): 649-659.
  35. Igiel C., et al. “Reliability of visual and instrumental color matching”. Journal of Esthetic and Restorative Dentistry 29 (2017): 303-308.
  36. Culic B., et al. “Clinical evaluation of a new software for shade matching”. Optoelectronics and Advanced Materials-Rapid Communication 9 (2015): 1245-1250.
  37. Oh WS., et al. “Digital computer matching of tooth color”. Materials6 (2010): 3694-3699.
  38. Ahmad I. “Digital dental photography”. Part 5: lighting”. British Dental Journal1 (2009): 13.
  39. McLaren EA and Chang YY. “Photography and Photoshop®: simple tools and rules for effective and accurate communication”. Inside Dentistry8 (2006): 97-101.
  40. Liu F. “Dental Digital Photography: From Dental Clinical Photography to Digital Smile Design”. Springer, (2019).
  41. Anand D., et al. “Shade selection: Spectrophotometer vs. digital camera-A comparative in vitro study”. Annals of Prosthodontics and Restorative Dentistry 2 (2016): 73-78.
  42. Schropp L. “Shade matching assisted by digital photography and computer software”. Journal of Prosthodontics: Implant, Esthetic and Reconstructive Dentistry3 (2009): 235-241.
  43. Jarad F D., et al. “The use of digital imaging for color matching and communication in restorative dentistry”. British Dental Journal1 (2005): 43.
  44. Hein S., et al. “eLABor_aid: a new approach to digital shade management. International Journal of Esthetic Dentistry 2 (2017): 186-202.
  45. Zeighama S., et al. “Effect of Ceramic Thickness and Cement Color on Final Shade of All Ceramic Restorations: A Systematic Review”. Scholars Academic Journal of Biosciences 5 (2017): 425-432.
  46. Grah CL., et al. “Differences in color between fired porcelain and shade guides”. International Journal of Prosthodontics 5 (1992): 510-514.
  47. Pires LA., et al. “Effects of the type and thickness of ceramic, substrate, and cement on the optical color of a lithium disilicate ceramic”. Journal of Prosthetic Dentistry 117 (2017): 144-149.
  48. Seghi RR., et al. “Spectrophotometric analysis of color differences between porcelain systems”. Journal of Prosthetic Dentistry 56 (1986): 35-40.
  49. Douglas RD and Przybylska M. “Predicting porcelain thickness required for dental shade matches”. Journal of Prosthetic Dentistry 82 (1999): 143-149.
  50. Stavridakis MM., et al. “Effect of different high-palladium metal-ceramic alloys on the color of opaque and dentin porcelain”. Journal of Prosthetic Dentistry 92 (2004): 170-178.
  51. Falahchai SM., et al. “Main Factors affecting the final color of ceramic restorations”. Advances in Dentistry and Oral Health 5 (2017): 1-3.
  52. Fasbinder DJ., et al. “A Clinical Evaluation of Chairside Lithium Disilicate CAD/CAM Crowns”. Journal of the American Dental Association 141 (2014): 10-14.
  53. Rauch A., et al. “Chair-side generated posterior monolithic lithium disilicate crowns: clinical survival after 6 years”. Clinical Oral Investigations 21 (2017): 2083-2089.
  54. Ballard E., et al. “Satisfaction of Dental Students, Faculty, and Patients with Tooth Shade-Matching Using a Spectrophotometer”. Journal of Dental Education 81 (2017): 545-553.
  55. Shah RJ., et al. “A Study of Patient Satisfaction with Maxillary Anterior Teeth Restorations and Desirable Esthetic Treatment Options”. Journal of Medical and Dental Sciences 13 (2014): 79-86.


Citation: Rawan Ferroukhi., et al. “Impact of Digital Photography and Conventional Method on the Accuracy of Shade Matching in the Esthetic Zone (In Vivo Study)". Acta Scientific Dental Sciences 4.10 (2020): 82-94.


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