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Impact of Presentation Sequence on Patient Tooth Shade Selection

NCT07370545 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 210

Last updated 2026-03-09

No results posted yet for this study

Summary

This study is a clinical trial designed to understand how the way a dentist presents tooth color options affects a patient's final choice for their dental treatment. The insvestigators know that patients often prefer lighter, "bleached" shades, but the process of choosing can be influenced by the order in which the shades are shown.

The insvestigators will randomly dividing participants into three groups. One group will see natural shades first, followed by bleached shades. A second group will see bleached shades first, followed by natural shades. The third group will see all shades at once.

The main goal is to measure how often patients change their mind (switch their choice) and by how much (the "jump" in lightness) depending on the order of presentation. The insvestigators will also use a questionnaire to see if a patient's self-consciousness about their smile affects how light of a shade they choose. The results will help dentists improve communication and ensure patients are truly satisfied with their final aesthetic decision.

Conditions

  • Shade Match
  • Teeth Color
  • Patient Preference
  • Aesthetic Perception

Interventions

BEHAVIORAL

Sequential Shade Presentation (Natural to Bleached)

Participants are first presented with the natural range of the VITA 3D-Master shade guide (1M1-5M3) to select an initial preference. Following this, the bleached shade tabs (0M1-0M3) are introduced, and participants are invited to finalize their choice. This procedure measures the "pull" toward lighter shades when introduced as a secondary option.

BEHAVIORAL

Sequential Shade Presentation (Bleached to Natural)

Participants are first presented with the bleached range of the VITA 3D-Master shade guide (0M1-0M3) to select an initial preference. Following this, the full natural range (1M1-5M3) is introduced, and participants are invited to finalize their choice. This procedure measures the stability of the bleached shade preference when natural alternatives are subsequently provided.

BEHAVIORAL

Simultaneous Shade Presentation (Full Range)

Participants are presented with the complete VITA 3D-Master shade guide, including both natural (1M1-5M3) and bleached (0M1-0M3) tabs, in a single session. Participants select their preferred shade from the entire range simultaneously. This serves as the control method to establish baseline preference without sequential bias.

Sponsors & Collaborators

  • University of Jordan

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
HEALTH_SERVICES_RESEARCH
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-01-26
Primary Completion
2026-03-05
Completion
2026-03-05

Countries

  • Jordan

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07370545 on ClinicalTrials.gov