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Quantitative Evaluation of the Effect of Dehydration and Rehydration Levels on Tooth Color

Quantitative Evaluation of the Effect of Dehydration and Rehydration Levels on Tooth Color Using Various Measurement Techniques

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05620277
Enrollment
30
Registered
2022-11-17
Start date
2022-06-05
Completion date
2024-06-05
Last updated
2022-11-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Tooth Discoloration

Keywords

Dehydration, Rehydration, Tooth Color, Dental Photography, Color Measurement

Brief summary

This study aims to evaluate the dehydration and rehydration changes in teeth over time and the quantitative effect of these changes on natural tooth color in the clinic. In addition, it is aimed to evaluate the effectiveness of different color measuring devices used in color detection in the clinic, the use of cross-polarization filters, and white balance calibration in color evaluation. Clinicians will evaluate the results of the time intervals in which dehydration is effective in detectable levels of color change. Considering the quantitative changes in dehydrated and rehydrated teeth, it will be possible to prevent negative results in restorations.

Detailed description

According to the criteria determined in our study, 30 individuals were repeated with their mouths open for 15 seconds, 1 minute, 2 minutes, 3 minutes, and 5 minutes with a camera, MDP device, and the use of these devices with a cross-polarization filter to determine how dehydration will affect the tooth color. For white balance calibration, all the shots will be taken the same way with the gray reference card, and the color measurements of the teeth will be taken with two different spectrophotometers in the determined parameters. After these measurements, patients will be kept with their mouths closed and tooth color measurements will be taken after 30 minutes and 60 minutes of remineralization. The patients will be called again 24 hours after these procedures the final color measurement will be made and the basic color parameters will be recorded. Spectrophotometric images will be analyzed according to the manufacturer's instructions. The spectrophotometer shall be calibrated and used according to the manufacturer's instructions before each measurement set. In restorative dentistry clinical applications, color selection errors, which are irreversible errors caused by the color changes of the teeth due to dehydration, will be determined in detail in a short time due to dehydration in the teeth, as a result of this clinical study, and with the result of rehydration, the color change levels will be determined in detail. return will be determined. In this way, it is aimed to create a clearer template for physicians based on time in terms of color selection in the clinic. It is aimed to avoid the need for renewal and avoid unnecessary sessions, as color harmony can be achieved in restorations made by considering the color changes of the tooth during dehydration and rehydration periods. Different photographic techniques and colorimeters will also help measure color variations. In addition, the sensitivity of the color detection methods used in our study will be evaluated comparatively, ensuring which method gives more accurate and reproducible results in clinical applications.

Interventions

DIAGNOSTIC_TESTMobile Dental Photography

Tooth color changes of 30 patients will be evaluated using Mobile Dental Photography

DIAGNOSTIC_TESTMobile Dental Photography with cross-polarization filter

Tooth color changes of 30 patients will be evaluated using Mobile Dental Photography with a cross-polarization filter

DIAGNOSTIC_TESTMobile Dental Photography with gray reference card

Tooth color changes of 30 patients will be evaluated using Mobile Dental Photography with a gray reference card

DIAGNOSTIC_TESTMobile Dental Photography with cross-polarization filter and gray reference card

Tooth color changes of 30 patients will be evaluated using Mobile Dental Photography with a cross-polarization filter and gray reference card

DIAGNOSTIC_TESTDigital Camera

Tooth color changes of 30 patients will be evaluated using a Digital Camera

DIAGNOSTIC_TESTDigital Camera with cross-polarization filter

Tooth color changes of 30 patients will be evaluated using a Digital Camera with cross-polarization filter

DIAGNOSTIC_TESTDigital Camera with cross-polarization filter and gray reference card

Tooth color changes of 30 patients will be evaluated using a Digital Camera with a cross-polarization filter and gray reference card

DIAGNOSTIC_TESTDigital Camera with gray reference card

Tooth color changes of 30 patients will be evaluated using a Digital Camera with a gray reference card

DIAGNOSTIC_TESTRayplicker

Tooth color changes of 30 patients will be evaluated using Rayplicker

DIAGNOSTIC_TESTRayplicker with gray reference card

Tooth color changes of 30 patients will be evaluated using Rayplicker with gray reference card

DIAGNOSTIC_TESTVita Easyshade

Tooth color changes of 30 patients will be evaluated using Vita Easyshade

DIAGNOSTIC_TESTVita Easyshade with gray reference card

Tooth color changes of 30 patients will be evaluated using Vita Easyshade with a gray reference card

Sponsors

Marmara University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Intervention model description

30 patients will be examined for changes in tooth color after dehydration and rehydration stages.

Eligibility

Sex/Gender
ALL
Age
20 Years to 40 Years
Healthy volunteers
Yes

Inclusion criteria

* healthy periodontal tissue * tooth color in A1, A2, or A3

Exclusion criteria

* any systemic diseases * smoking * restoration or caries in anterior teeth * vital and devital bleaching application

Design outcomes

Primary

MeasureTime frameDescription
Tooth color measurement15 secondstooth color changes after 15 seconds (dehydration) will be evaluated using Mobile Dental Photography, Digital Camera, Vita Easyshade and Rayplicker

Secondary

MeasureTime frameDescription
Tooth color measurement1 minutetooth color changes after 1 minute (dehydration) will be evaluated using Mobile Dental Photography, Digital Camera, Vita Easyshade and Rayplicker

Other

MeasureTime frameDescription
Tooth color measurement2 minutestooth color changes after 2 minutes (dehydration) will be evaluated using Mobile Dental Photography, Digital Camera, Vita Easyshade and Rayplicker

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026