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01-12-2024 | Laser | Original Article

“Comparative evaluation of displacement cord versus diode laser in gingival troughing an in vivo study “

Authors: Shaimaa S. Mahdi, Humam Barrak, Salah A. Alkurtas

Published in: Lasers in Dental Science | Issue 1/2024

Abstract

Purpose

The conventional method with displacement cord has been used for many years in impression making, but still this technique is time-consuming and creates pain from pressure during the application of the cord. The aim of this study is to clinically monitor and compare the conventional method of using the displacement cord and the surgical method using a 940 nm diode laser in terms of pain, hemorrhage and operation time.

Methods

Thirteen individuals in need of two crowns on natural teeth were selected. Before the treatment, the patient’s gingival and periodontal health was in good condition, and they showed no sign of gingival recession or inflammation. One tooth was selected randomly for the conventional method utilizing a double displacement cord, while the other was treated with a 940 nm diode laser. The teeth were prepared with a 0.5 mm sub-gingival finish line, and temporary crowns were made. Patients were followed up at 48–72 h and after five days. Operation time and hemorrhage scores were measured at the operation time while the visual analogue scale (VAS) score was measured after evaluating the complete cessation of anesthetic effect at day zero and during the follow-ups using VAS.

Results

The tooth that received the laser treatment showed that all patients scored 0 on the hemorrhage score, whereas in the other group, all patients scored 1on hemorrhage during the operation. The mean pain score at first reading (immediately after operation) in the first group was 1±0 significantly lower than that of the second group at the same time of measurement (4.69±1.1). the p value was (0.05). Additionally, results showed that the time of the laser group was 19.85 s ± 2.23, which is significantly lower than that of the troughing group with a displacement cord 203.85±25.44 s.

Conclusion

Displacement cord can be replaced by laser for creating a trough around a tooth to visualize the finish line accurately during impression taking. The outcomes showed shorter chair time, little or no pain, and less hemorrhage during and after Impression taking by using laser troughing.

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Title: “Comparative evaluation of displacement cord versus diode laser in gingival troughing an in vivo study “
Authors: Shaimaa S. Mahdi
Humam Barrak
Salah A. Alkurtas
Publication date: 01-12-2024
Publisher: Springer International Publishing
Keywords: Laser
Diode Laser
Published in: Lasers in Dental Science / Issue 1/2024
Electronic ISSN: 2367-2587
DOI: https://doi.org/10.1007/s41547-024-00259-9

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“Comparative evaluation of displacement cord versus diode laser in gingival troughing an in vivo study “

Abstract

Purpose

Methods

Results

Conclusion

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