A two-probe laser Doppler flowmetry assessment as an exclusive diagnostic device in a long-term follow-up of traumatised teeth: a case report.
The reliability of laser Doppler flowmetry in a two-probe assessment of pulpal blood flow is well known. The purpose of this case report was to determine its use as an exclusive and reliable tool for tooth vitality diagnosis in a long-term follow-up. As a result of a traumatic injury to a 24-year-old Caucasian female, tooth pulp vitality was studied in six maxillary front teeth over 30 weeks using two-probe laser Doppler flowmetry and current sensitivity tests. A similar assessment was repeated after 228 weeks. Confronted with an alveolar bone fracture with a tooth in the fracture line, one intrusion and several luxated teeth, current sensitivity tests are found not to be as reliable indicators of revascularisation, as significant results are obtained later (7 weeks) than using laser Doppler flowmetry tests (1 week). A pathway with ischaemia (3 weeks), hyperaemia (7 weeks) and restored blood supply in the pulp measured by laser Doppler flowmetry tests was found and avoided endodontic treatment. Teeth vascularisation evolved normally (228 weeks). Despite a strong indication in all sensitivity tests for endodontic treatment, the use of laser Doppler flowmetry tests was clear, more reliable than sensitivity tests and exclusive, as denervation was postponed and pulp vascularisation evident.
Department of Operative Dentistry & Endodontology, University of Ghent, Belgium. herman.roeykens@rug.ac.be
Herman
H
Roeykens
Georges
G
Van Maele
Luc
L
Martens
Roeland
R
De Moor
D000328:Adult; D000539:Alveolar Process / Q000293:injuries; D003481:Cuspid / Q000293:injuries*; D003782:Dental Pulp / Q000098:blood supply; D003790:Dental Pulp Necrosis / Q000175:diagnosis* / Q000209:etiology; D003791:Dental Pulp Test; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor / Q000293:injuries*; D007572:Jaw Fractures / Q000150:complications; D017078:Laser-Doppler Flowmetry; D008437:Maxilla / Q000293:injuries; D010516:Periodontal Splints; D015203:Reproducibility of Results; D014084:Tooth Avulsion / Q000150:complications*; D014090:Tooth Replantation