There were statistically significant differences between the 2 instruments in terms of agreement in tooth color selection as well as between the 2 shade guides. The 2 instruments and the 2 visual shade guides were assessed in terms of agreement in tooth color selection. Two visual shade guides were used as references for the tests - VITA VITAPAN® Classical and VITA 3D‑Master. The color of maxillary right central incisors and right canines was assessed in a group 100 patients aged 22-40 years (25.11 ☓.24 years), using the Easyshade® spectrophotometer and the ShadeStar® colorimeter. The aim of this study was to compare 2 commercial devices used for tooth color selection. The SpectroShade Micro and VITA Easyshade show better variability in terms of precision, but they have no significant advantages in reliability.Ĭorrect color assessment and the selection of the color of the prosthetic restoration are important aspects of prosthetic treatment, which significantly affect the success of the treatment. Of the six studies included in the systematic review, two examined the precision and repeatability of the spectrophotometers, three examined repeatability, and one examined reliability. Two of the remaining eight articles were excluded after applying the modified ARRIVE and CONSORT criteria and the Newcastle–Ottawa criteria. The full texts of the other 47 studies were examined, which led to the exclusion of 39 articles that did not meet the inclusion criteria. A total of 579 studies were excluded because their titles and abstracts did not meet the eligibility criteria. The selection process using the PRISMA flow chart. Six studies were included, two studies provided data on the precision and repeatability of the spectrophotometers, three provided data on repeatability, and one provided data on reliability. There was great heterogeneity in the experimental design of the articles that were included: however, no article mentioned or adhered to the indications given by the ISO_TR_28642_2016 standard for color measurement. The assessment of the risk of bias in the in vivo studies was based on the parameters assigned by the Newcastle–Ottawa tool, and the risk of bias of the in vitro studies was categorized by applying the modified ARRIVE and CONSORT criteria. All three authors were independently involved in studies selection based on the inclusion criteria, data extraction, and bias assessment. Each keyword was separated by the Boolean operator OR to later be combined with the Boolean operator AND. In the search strategy, medical subject heading (MeSH) words were used in PubMed, and free terms were used for the titles and abstracts of each article. Screening, data extraction, and quality assessment were performed independently and in duplicate. A manual search was also performed based on the reference lists of the relevant articles. To evaluate the variability in the precision and reliability of tooth color selection among different spectrophotometers.Ī search was performed in the following databases: MEDLINE (PubMed), Google Scholar, Scopus, and Web of Science. The null hypotheses that they present no differences in their color measuring within devices or shade systems is accepted, but the results allow to reject the null hypotheses that they present no differences in their color measuring or shade systems between devices.īoth EasyShade (ES) and SpectroShade Micro (SSM) show excellent repeatability and so they can be used in office to evaluate tooth color or to assess color changes after treatment.ĭental color can be diagnosed using dental spectrophotometers, allowing to detect in an objective way therapeutic dental color changes. Intradevices ICC values were higher for ES but not significant (p > 0.05). Interdevice L* and b* were significantly higher for ES (p 0.05). Intradevices no significant differences (p > 0.05) were found between L*, a*, b*. Paired t-test and correlation coefficient (ICC) were used. L*, a* and b* values and shade matches to VITA Classical and Vitapan 3D-Master shade guide systems were determined for all teeth. Tooth color was measured in six maxillary and mandibular. The objective of this study was to investigate the intra and interdevice reliability of two tooth color measurement devices: EasyShade (ES) and SpectroShade Micro (SSM).
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