Efficacy of Laser Doppler Flowmetry, as a Diagnostic Tool in Assessing Pulp Vitality of Traumatised Teeth: A Split Mouth Clinical Study

Ani Belcheva, Maria Shindova, Reem Hanna, Ani Belcheva, Maria Shindova, Reem Hanna

Abstract

Aim: This study aimed to evaluate the efficacy of laser Doppler flowmetry (LDF) in determining the changes in the pulpal blood flow (PBF) during post-traumatic period of the traumatised permanent teeth.

Methods: 88 teeth of 44 patients (mean age 10.30 ± 2.38) were recruited according to the eligibility criteria and divided into two groups: test group (44 traumatised teeth) and control group (44 sound and healthy teeth). The measurement of PBF was performed, using a LDF monitor.

Results: The analysis of the LDF outcomes in function of diagnosis indicated that the measurements of the traumatised teeth were significantly higher than those of non-traumatised teeth (p ˂ 0.05).

Conclusions: LDF application provides dentists with fundamental benefits in terms of an early and precise investigation of PBF. In addition, LDF is a useful monitoring tool for revascularization of traumatised teeth and reliable objective diagnostic indicator of pulp vitality. Trial registration: ClinicalTrials.gov (Registration number: NCT04967456).

Keywords: laser Doppler flowmetry (LDF); paediatric dentistry; pulp vitality; pulpal blood flow; traumatised teeth.

Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
The CONSORT checklist.
Figure 2
Figure 2
A flow diagram, showing the flow of the participants through each stage of the trial study.
Figure 3
Figure 3
(a–e) Shows the process of pulpal blood flow measurement.
Figure 3
Figure 3
(a–e) Shows the process of pulpal blood flow measurement.
Figure 4
Figure 4
Flux value (AU) of traumatised and non-traumatised teeth.
Figure 5
Figure 5
Graphical visualisation of the LDF recording information. A power spectrum density (PSD) graph is displayed. The graph was divided into frequency bands for statistical analysis of the bands. Two parallel measurements of both traumatised and non-traumatised teeth are presented. Each channel was plotted individually (Canal 1, in black, non-traumatised and Canal 2, in red, traumatised teeth).

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