Comparison of Color Measurements of Postgraduate Dental Students Using Different Color Determination Methods

• Conditions: Tooth Discoloration

• Registration Number: NCT06791694
• Lead Sponsor: Hacettepe University

Brief Summary

This study evaluates the accuracy of tooth color identification skills in the anterior region using a new technique, the button technique, in comparison with other methods.

Detailed Description

The human eye is effective in detecting subtle differences in tooth color. However, variations in the shade, translucency, opacity, and characterization of a tooth may not be accurately identified. Visual color matching is subject to physiological variables that may lead to inconsistencies, such as age, gender, experience, the type of scale used, varying degrees of light exposure, eye fatigue, and color vision deficiency.

Studies comparing visual and instrumental methods have demonstrated that spectrophotometers yield better results compared to visual color scales. Therefore, it is expected that color measurement devices improve the accuracy of tooth color determination, thereby enhancing the interpretation and aesthetic execution of restorations.

In recent years, the button technique has been described for shade selection in direct aesthetic restorations in the anterior region. In this technique, small composite samples in the form of dots are polymerized on the tooth surface using a curing light. Digital photographs are then taken, and appropriate enamel and dentin shades are selected on a computer using polarized and black-and-white images.

Very few clinical studies have investigated the use of digital color images obtained through intraoral digital scanners for shade selection, comparing them with other existing methods.

The aim of this study is to evaluate the accuracy of shade determination skills in the anterior region by comparing a new technique, the button technique, with other methods and to recommend the most suitable method for shade selection

Study Timeline

• Status Verified: 2025-01
• Study First Submitted: 2025-01-19
• Study First Submitted QC: 2025-01-19
• Study First Posted: 2025-01-24
• Study Start: 2025-01-27
• Last Update Submitted: 2025-01-28
• Last Update Posted: 2025-01-30
• Primary Completion: 2025-03-01
• Study Completion: 2025-03-01

Recruitment & Eligibility

• Status: ENROLLING_BY_INVITATION
• Sex: All
• Target Recruitment: 32

Inclusion Criteria

• Being healthy individuals,
• Not having any systemic diseases,
• Being young individuals (18-40 age range)
• Vital, decay-free and healthy upper central teeth,
• Absence of caries-free hard tissue abrasions, any restoration, fracture, crack, intrinsic or extrinsic discoloration in the upper central teeth
• Lack of removable prosthesis feet for central teeth

Exclusion Criteria

• Tetracycline, fluorosis staining of upper central teeth
• Patients with dentin exposure or loss of bine in the upper central teeth for any reason
• Pregnant and lactating patients will not be included.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
To have compared the inter-observer reliability of 4 different methods used in tooth color selection	1 month	To have compared the inter-observer reliability of 4 different methods used in tooth color selection

Trial Locations

Locations (1)

Hacettepe University; 🇹🇷 Altındağ, Ankara, Turkey