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Title Minimal Evidence to Demonstrate the Effects of Dental Lasers and Their Effects on the Dental Pulp
Clinical Question In a patient with caries, are dental lasers compared to rotary burs, less harmful to the pulp of the tooth being treated?
Clinical Bottom Line Even though the dental laser increased the intra-pulpal temperature more than the rotary high-speed bur, the temperature increase did not cause damage to pulp tissue.
Best Evidence (you may view more info by clicking on the PubMed ID link)
PubMed ID Author / Year Patient Group Study type
(level of evidence)
#1) 18425563Colucci/2008Studies on the effects of water flow on dental tissue ablation using Er:YAG laser.Review
Key resultsThe Er:YAG laser with constant water cooling creates a minimal, reversible, and localized pulp response, which is comparable to high-speed drilling treatment. Further studies are needed in order to more fully understand the relation between dental lasers and pulp tissue.
#2) 18430350Castilho/2007Fourteen maxillary deciduous molars.In vitro study
Key resultsEr:YAG laser irradiation increased the temperature of the deciduous teeth compared to the high-speed drilling treatment. The temperature increments, however, remained below the critical value (5.5 degrees C). The pulp temperature was not increased to a level that can cause irreversible damaged to pulp tissue.
Evidence Search (("Dental High-Speed Technique"[Mesh]) AND "Lasers, Solid-State"[Mesh]) AND "Humans"[Mesh]
Comments on
The Evidence
The level of evidence is fair due to the fact that Colucci’s study is a Review. Castilho’s in vitro study is weak in evidence along with the fact that it only compared deciduous teeth. Clinical, in vivo, studies need to be completed to improve the comparisons between dental lasers and rotary burs in relation to intra-pulpal temperature.
Applicability In addition to not raising pulpal temperatures excessively, the Er:YAR dental laser has been shown to cause less vibration, pressure and noise than rotary preparation. This could possibly make it a good treatment option for the anxious patient affected by these factors.
Specialty/Discipline (General Dentistry) (Periodontics) (Restorative Dentistry)
Keywords Dental lasers, dental pulp, rotary burs
ID# 2200
Date of submission: 04/19/2012spacer
E-mail rayl3@livemail.uthscsa.edu
Author Lorena Ray
Co-author(s) e-mail
Faculty mentor/Co-author Mark Littlestar, DDS
Faculty mentor/Co-author e-mail littlestarm@uthscsa.edu
Basic Science Rationale
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