Root Surface Temperature Increases During Root Canal Filling In Vitro with Nd:YAG Laser-Softened Gutta-Percha

Overview

Journal J Healthc Eng

Specialty Biomedical Engineering

Date 2020 Jun 27

PMID 32587668

Citations 6

Authors

Blazej Podolak

Alicja Nowicka

Krzysztof Wozniak

Liliana Szyszka-Sommerfeld

Wlodzimierz Dura

Mariusz Borawski

Elzbieta Dembowska

Mariusz Lipski

Affiliations

Soon will be listed here.

Abstract

The aim of this in vitro study was to measure the temperature increases produced on the mesial and vestibular root surfaces of premolar teeth during a laser-softened gutta-percha obturation technique. We studied 12 extracted human premolar teeth with a single canal. After root canal cleaning and shaping, the teeth were obturated with gutta-percha that had been softened with a neodymium-doped yttrium aluminium garnet (Nd:YAG) laser (CTL 1503) at a wavelength of 1.064 nm. The laser setup parameters included a 30 Hz frequency and a 200 mJ/pulse with optical fiber tips of 0.320 mm diameter. A sectional warm gutta-percha condensation was used. Temperature changes on the whole mesial and vestibular outer surfaces of the roots were measured at approximately 2 s intervals with an infrared thermal imaging camera. A significantly higher increase in temperature was observed for the mesial root surface (7.5°C) compared to the vestibular surface (3.7°C) ( ≈ 0). The findings suggested that root canal filling with Nd:YAG laser-softened gutta-percha in premolar teeth is not likely to damage the surrounding periradicular tissues. To obtain valid temperature results, the measurement should be performed on the surface with the thinnest root wall.

Citing Articles

Comparison of the pull-out force of different microtube-based methods in fractured endodontic instrument removal: An in-vitro study.

Hashemi N, Aminsobhani M, Kharazifard M, Hamidzadeh F, Sarraf P BMC Oral Health. 2025; 25(1):1.

PMID: 39748358 PMC: 11694359. DOI: 10.1186/s12903-024-05370-8.

A Comparative Study of Temperature Variations in Incisor Root Surfaces During Root Canal Preparation Using Various Rotary Systems and Irrigation Protocols.

Paven M, Marinescu A, Abuabboud O, Cirligeriu L, Nica L, Alexa V J Clin Med. 2024; 13(23).

PMID: 39685939 PMC: 11642257. DOI: 10.3390/jcm13237484.

Efficacy of Smear Layer Removal at the Apical One-Third of the Root Using Different Protocols of Erbium-Doped Yttrium Aluminium Garnet (Er:YAG) Laser.

Habshi A, Aga N, Habshi K, Hassan M, Choudhry Z, Ahmed M Medicina (Kaunas). 2023; 59(3).

PMID: 36984434 PMC: 10052743. DOI: 10.3390/medicina59030433.

The accuracy of using guided endodontics in access cavity preparation and the temperature changes of root surface: An in vitro study.

Zhang C, Zhao X, Chen C, Wang J, Gu P, Ma J BMC Oral Health. 2022; 22(1):504.

PMID: 36384556 PMC: 9670633. DOI: 10.1186/s12903-022-02548-w.

Emissivity evaluation of human enamel and dentin.

Lancaster P, Carmichael F, Clerehugh V, Brettle D Front Physiol. 2022; 13:993674.

PMID: 36353375 PMC: 9638078. DOI: 10.3389/fphys.2022.993674.

References

Anic I, Matsumoto K . Comparison of the sealing ability of laser-softened, laterally condensed and low-temperature thermoplasticized gutta-percha. J Endod. 1995; 21(9):464-9. DOI: 10.1016/S0099-2399(06)81530-X. View

Vishwanath V, Rao H . Gutta-percha in endodontics - A comprehensive review of material science. J Conserv Dent. 2019; 22(3):216-222. PMC: 6632621. DOI: 10.4103/JCD.JCD_420_18. View

Inamoto K, Horiba N, Senda S, Naitoh M, Ariji E, Senda A . Possibility of root canal preparation by Er:YAG laser. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008; 107(1):e47-55. DOI: 10.1016/j.tripleo.2008.09.005. View

Franzen R, Gutknecht N, Falken S, Heussen N, Meister J . Bactericidal effect of a Nd:YAG laser on Enterococcus faecalis at pulse durations of 15 and 25 ms in dentine depths of 500 and 1,000 μm. Lasers Med Sci. 2010; 26(1):95-101. DOI: 10.1007/s10103-010-0826-5. View

Romero A, Green D, Wucherpfennig A . Heat transfer to the periodontal ligament during root obturation procedures using an in vitro model. J Endod. 2001; 26(2):85-7. DOI: 10.1097/00004770-200002000-00006. View

Kimura Y, Wilder-Smith P, Matsumoto K . Lasers in endodontics: a review. Int Endod J. 2001; 33(3):173-85. DOI: 10.1046/j.1365-2591.2000.00280.x. View

Alfredo E, Marchesan M, Sousa-Neto M, Brugnera-Junior A, Silva-Sousa Y . Temperature variation at the external root surface during 980-nm diode laser irradiation in the root canal. J Dent. 2008; 36(7):529-34. DOI: 10.1016/j.jdent.2008.03.009. View

Ng Y, Mann V, Gulabivala K . Tooth survival following non-surgical root canal treatment: a systematic review of the literature. Int Endod J. 2010; 43(3):171-89. DOI: 10.1111/j.1365-2591.2009.01671.x. View

Brayton S, Davis S, Goldman M . Gutta-percha root canal fillings. An in vitro analysis. I. Oral Surg Oral Med Oral Pathol. 1973; 35(2):226-31. DOI: 10.1016/0030-4220(73)90289-2. View

10.

Anic I, Matsumoto K . Dentinal heat transmission induced by a laser-softened gutta-percha obturation technique. J Endod. 1995; 21(9):470-4. DOI: 10.1016/s0099-2399(06)81531-1. View

11.

de Moura-Netto C, Maranhao de Moura A, Davidowicz H, Aun C, Antonio M . Morphologic changes and removal of debris on apical dentin surfaces after Nd:YAG laser and diode laser irradiation. Photomed Laser Surg. 2008; 26(3):263-6. DOI: 10.1089/pho.2007.2180. View

12.

Vezzani M, Pietro R, Silva-Sousa Y, Brugnera-Junior A, Sousa-Neto M . Disinfection of root canals using Er:YAG laser at different frequencies. Photomed Laser Surg. 2006; 24(4):499-502. DOI: 10.1089/pho.2006.24.499. View

13.

Tagger M . Use of thermo-mechanical compactors as an adjunct to lateral condensation. Quintessence Int Dent Dig. 1984; 15(1):27-30. View

14.

Madarati A, Qualtrough A, Watts D . Factors affecting temperature rise on the external root surface during ultrasonic retrieval of intracanal separated files. J Endod. 2008; 34(9):1089-92. DOI: 10.1016/j.joen.2008.05.018. View

15.

Lipski M . Root surface temperature rises in vitro during root canal obturation with thermoplasticized gutta-percha on a carrier or by injection. J Endod. 2004; 30(6):441-3. DOI: 10.1097/00004770-200406000-00016. View

16.

Lipski M . Root surface temperature rises in vitro during root canal obturation using hybrid and microseal techniques. J Endod. 2005; 31(4):297-300. DOI: 10.1097/01.don.0000140575.67887.e7. View

17.

Anjo T, Ebihara A, Takeda A, Takashina M, Sunakawa M, Suda H . Removal of two types of root canal filling material using pulsed Nd:YAG laser irradiation. Photomed Laser Surg. 2005; 22(6):470-6. DOI: 10.1089/pho.2004.22.470. View

18.

Leong D, Yap A . Quality of life of patients with endodontically treated teeth: A systematic review. Aust Endod J. 2019; 46(1):130-139. DOI: 10.1111/aej.12372. View

19.

CASTELLI W, Caffesse R, Pameijer C, DIAZ-PEREZ R, Farquhar J . Periodontium response to a root canal condensing device (Endotec). Oral Surg Oral Med Oral Pathol. 1991; 71(3):333-7. DOI: 10.1016/0030-4220(91)90310-9. View

20.

Tachinami H, Katsuumi I . Removal of root canal filling materials using Er:YAG laser irradiation. Dent Mater J. 2010; 29(3):246-52. DOI: 10.4012/dmj.2008-079. View