Tooth Crown Discoloration Caused by Endodontic Treatment

Completed

• Conditions: Root Canal Infection; Endodontically Treated Teeth; Tooth Discoloration
• Interventions: Procedure: endodontic treatment

• Registration Number: NCT03841370
• Lead Sponsor: Federal University of Pelotas

Brief Summary

The color change of endodontically treated teeth is a common concern in clinical practice. The objective of this study will be to evaluate, in vivo, the color change (ΔE00) caused by endodontic treatment. A observational retrospective study will be conducted to evaluate the ΔE00 of anterior (incisors and canines) and posterior (premolar) teeth treated at a private clinic, regardless of technique, treatment time and sealer used. In this study the ΔE00 will be evaluated using the measurements obtained in the homologous tooth (without endodontic treatment) versus the measurement obtained from the tooth treated endodontically. The values of ΔE00 obtained for each sealer, cut and time will be analyzed by multifactorial analysis to verify associations of the outcomes with the ΔE00.

Detailed Description

This cross-sectional clinical study will evaluate the color difference (∆E00), and CIELAB coordinates (L\*, a\*, and b\*) of endodontic treated teeth in the 3 conditions (baseline, homologous tooth versus ≤ 1 month after tooth endodontic treatment); (baseline, homologous tooth versus \> 1 to 12 months after tooth endodontic treatment); (baseline, homologous tooth versus \> 12 up to 5 years after tooth endodontic treatment). The following pairs of variables will be considered in the comparisons: filling material (AH Plus and Endofill/Fillcanal/MTA Fillapex); cut at cervical level (dental cervix and 2mm in the apical direction); and location tooth (anterior and posterior teeth).

The response variables will include the color difference (∆E00), estimated by the CIEDE2000 color difference metric (ΔE00) obtained from readings made on the homologous tooth of the endodontic treated (baseline) and tooth endodontic treated (after) with a spectrophotometer.

All individuals who came to a private dental clinic between January 2010 and December 2018 and who received endodontic treatment will be considered for participation in this study. The following inclusion criteria will be used to evaluate and enroll potential participants: individuals at least 18 years old; who received anterior or posterior (pre-molar) endodontic treatment and who present homologous tooth with pulp vitality and at least 1/3 of the remaining coronary, without endodontic treatment, intraradicular retentor or crown making dental color assessment impossible. Besides, will be excluded questionnaires filled incorrectly or lack of data regarding, the day, month and year of endodontic treatment finish, sealer used, the pulp condition at the time of the first consultation (irreversible pulpitis or pulpal necrosis) and periapical radiography, obtained with the use of radiographic positioner, preserved and with a clear image. All individuals who agree to participate in the study will sign a consent form based on the Declaration of Helsinki, after receiving information about the study objectives, risks, and benefits associated with the alternative treatment options and procedures. One examiner will be trained and calibrated prior to data collection. Kappa statistics will be used to assess intra-examiner reliability. Clinical, radiographic and color information will be collected.

Study Timeline

• Study Start: 2017-09-01
• Study First Submitted: 2018-11-19
• Study First Submitted QC: 2019-02-13
• Study First Posted: 2019-02-15
• Primary Completion: 2019-03-30
• Study Completion: 2020-12-01
• Status Verified: 2021-02
• Last Update Submitted: 2021-02-01
• Last Update Posted: 2021-02-02

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 70

Inclusion Criteria

• endodontically treated tooth, without intraradicular retainer and fixation;
• presence of homologous tooth to that treated, with pulp vitality and at least 1/3 of the crown;
• correctly patient's file showing the endodontic treatment day, the endodontic filler used, the pulp condition at the first consultation, and periapical radiography, obtained with the use of a radiographic positioner, preserved and with a clear apical image

Exclusion Criteria

• dental elements submitted to retreatment;
• files with insufficient data, and absence of quality periapical radiography

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
endodontic	endodontic treatment	The color of anterior (incisors and canines) and posterior (premolar) teeth treated at a private clinic in the city of Pelotas will be evaluated. Data will be collected regardless of technique, treatment time and sealer used. The ΔE00 will be evaluated using the measurements obtained in the homologous tooth (without endodontic treatment) versus the measurement obtained from the tooth treated endodontically. The values of ΔE00 obtained for each sealer, cut and time will be analyzed by multifactorial analysis to verify associations of the outcomes with the ΔE00.

Primary Outcome Measures

Name	Time	Method
Color alteration	ranging from 1 month to 5 years after endodontic treatment.	Color alteration (CIEDE2000 color difference metric - ΔE00) will be evaluated using the measurements obtained in the homologous tooth (without endodontic treatment) versus the measurement obtained from the tooth treated endodontically.

Trial Locations

Locations (1)

Federal University of Pelotas; 🇧🇷 Pelotas, RS, Brazil