| Pulpal and periodontal temperature rise during KTP laser use as a root planing complement in vitro. | |
MedLine Citation:
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PMID: 15782025 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: The purpose of this study was to define the optimal irradiation conditions of a KTP laser during root planing treatment. METHODS: The surfaces of 60 single-root human teeth were scaled with conventional instruments before lasing. The pulpal temperature increase was measured by means of one thermocouple placed in the pulp chamber and a second one placed on the root surface at 1 mm from the irradiation site. The influence of variables of coloration by Acid Red 52 (photosensitizer), scanning speed, dentin thickness, and probe position was analyzed for a constant exposure time of 15 sec and 500 mw (spot size diameter, 0.5 mm). The pulpal temperature was below 3 degrees C for the adjustments. RESULTS: The irradiation on one point of root surface had the following results: The application of photosensitizer on the root surface before lasing produced a 50% higher temperature rise within the pulp than in the case without the application of the photosensitizer. The temperature rise in the pulp chamber was below 3 degrees C with the following settings of 500 mw: PW = 10 msec and PRR < 35; or PW= 20 msec and PRR < 20 Hz. On the other hand, for the same irradiation conditions, the temperature rise on the surface of the root was always below 7 degrees C. However, the temperature increase became higher than 7 degrees C (on the surface of the root) in the case of P > 500 mw, PW > 50 msec and PRR > 10 Hz of root surface or a scanning speed of irradiation of 1 mm/sec for a linear irradiation of 4 mm. CONCLUSION: The KTP laser may be used safely without thermal damage to pulp and periodontal tissue with respect to the biologically acceptable previously described parameters. |
Authors:
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S Nammour; J-P Rocca; K Keiani; C Balestra; T Snoeck; L Powell; J Van Reck |
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Publication Detail:
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Type: In Vitro; Journal Article |
Journal Detail:
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Title: Photomedicine and laser surgery Volume: 23 ISSN: 1549-5418 ISO Abbreviation: Photomed Laser Surg Publication Date: 2005 Feb |
Date Detail:
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Created Date: 2005-03-22 Completed Date: 2005-04-28 Revised Date: 2010-03-24 |
Medline Journal Info:
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Nlm Unique ID: 101222340 Medline TA: Photomed Laser Surg Country: United States |
Other Details:
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Languages: eng Pagination: 10-4 Citation Subset: IM |
Affiliation:
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Department of Dental Sciences, Faculty of Medicine, University of Liege, Liege, Belgium. nammourdent@hotmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Body Temperature
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physiology* Dental Pulp / physiology* Humans Lasers* Phosphates Root Planing* Titanium |
| Chemical | |
Reg. No./Substance:
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0/Phosphates; 12690-20-9/potassium titanylphosphate; 7440-32-6/Titanium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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