Efficacy of Laser Doppler Flowmetry as a Diagnostic Tool in Assessing Revascularization of Traumatised Teeth

Not Applicable

• Conditions: Diagnosis Dual; Trauma
• Interventions: Diagnostic Test: Measurement of pulpal blood flow of traumatised tooth

• Registration Number: NCT04967456
• Lead Sponsor: Plovdiv Medical University

Brief Summary

The aim of the study is to evaluate the efficacy of Laser Doppler flowmetry in determining the changes in the pulpal blood flow during the post-traumatic period of traumatised permanent teeth.

Detailed Description

Traumatic injuries of permanent teeth in children and adolescents are very common. The conventional pulp vitality tests are inaccurate and unreliable techniques in assessing the pulp vitality during the post-traumatic period, as well as during the immature teeth examination. The aim is to evaluate the efficacy of Laser Doppler flowmetry in determining the changes in the pulpal blood flow during the post-traumatic period of traumatised permanent teeth. The study is designed as a randomized, split-mouth, controlled clinical trial. The measurement of the blood flow of the dental pulp of both, traumatised and non-traumatised teeth, will be performed, using a laser doppler flow monitor, emission wavelength 785nm±10nm, dual-channel laser Doppler monitoring option.

Study Timeline

• Status Verified: 2021-07
• Study First Submitted: 2021-07-08
• Study First Submitted QC: 2021-07-08
• Last Update Submitted: 2021-07-08
• Study Start: 2021-07-09
• Study First Posted: 2021-07-19
• Last Update Posted: 2021-07-19
• Primary Completion: 2022-08
• Study Completion: 2022-08

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 44

Inclusion Criteria

1. Fit and healthy subjects aged < 18-year-old;
2. Subjects with maxillary permanent incisor subjected to a traumatic injury without any dentoalveolar trauma involvement and have a contralateral homologous tooth with no signs/symptoms of injury;
3. Subjects attended their first dental visit within 3 days of the dental trauma;
4. Sensitivity value of the electric pulp test over 200 μA;
5. Subjects with at least one vital and non-traumatised maxillary incisor acting as a control tooth;
6. Ability to obtain a verbal acceptance from all the subjects to comply with all the treatments and follow-up timepoints attendance;
7. Ability to obtain written informed consent by the patients' parents/guardians for treatment, participation in the study and publication

Exclusion Criteria

1. Subjects who were undergoing therapy for neurological conditions or with mental or cognitive problems;
2. Subjects who were taking sedative, analgesic, and/or anti-inflammatory medication 7 days prior to the treatment commencement;
3. Subjects who have never had any first dental visit or treatment;
4. Subjects with systemic diseases or physiological development delay;
5. Subjects with active infectious diseases such as; influenza, scarlet fever, etc.
6. Subjects with restorations covered more than half the labial surface of the investigated teeth.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Measurement of pulpal blood flow of traumatised tooth	Measurement of pulpal blood flow of traumatised tooth	In the split-mouth design, the traumatised maxillary incisor will be investigated using Laser Doppler flowmetry.
Measurement of pulpal blood flow of non-traumatised tooth	Measurement of pulpal blood flow of traumatised tooth	In the split-mouth design, this arm - the non-traumatised maxillary incisor, contralateral tooth, will be investigated using Laser Doppler flowmetry as a control tooth.

Primary Outcome Measures

Name	Time	Method
Changes in pulpal blood flow	180 seconds	The traumatised and non-traumatised teeth, test and control, will be assessed by LDF, providing an accurate and precise investigation. The temperature in the dental office will be constant and the patient will be seated in a "state position" in the dental chair. According to the manufacturer's recommendations, a patient's relaxation of 10 minutes before the monitoring process will be obtained. The measurements of blood flow will be performed for 180 seconds at each session. All the measurements will be recorded.

Trial Locations

Locations (2)

Department of Paediatric Dentistry, Faculty of Dental Medicine, Medical University - Plovdiv, Bulgaria; 🇧🇬 Plovdiv, Bulgaria

Medical University - Plovdiv, Bulgaria; 🇧🇬 Plovdiv, Bulgaria