Document Detail

Pulpal and periodontal temperature rise during KTP laser use as a root planing complement in vitro.
MedLine Citation:
PMID:  15782025     Owner:  NLM     Status:  MEDLINE    
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.
S Nammour; J-P Rocca; K Keiani; C Balestra; T Snoeck; L Powell; J Van Reck
Related Documents :
3470905 - Proportions of streptococcus mutans, lactobacilli and actinomyces spp in root surface p...
20925675 - Elimination of geotropic responsiveness in roots of cress (lepidium sativum) by removal...
17349715 - Wheat genotypes show contrasting abilities to recover from anoxia in spite of similar a...
19550105 - Treatment of multiple gingival recessions using subepithelial connective tissue graftin...
7721555 - The relativity of biocompatibility. a critique of the concept of biocompatibility.
16085575 - Phylogenetic signal in bone microstructure of sauropsids.
Publication Detail:
Type:  In Vitro; Journal Article    
Journal Detail:
Title:  Photomedicine and laser surgery     Volume:  23     ISSN:  1549-5418     ISO Abbreviation:  Photomed Laser Surg     Publication Date:  2005 Feb 
Date Detail:
Created Date:  2005-03-22     Completed Date:  2005-04-28     Revised Date:  2010-03-24    
Medline Journal Info:
Nlm Unique ID:  101222340     Medline TA:  Photomed Laser Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  10-4     Citation Subset:  IM    
Department of Dental Sciences, Faculty of Medicine, University of Liege, Liege, Belgium.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Body Temperature / physiology*
Dental Pulp / physiology*
Root Planing*
Reg. No./Substance:
0/Phosphates; 12690-20-9/potassium titanylphosphate; 7440-32-6/Titanium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Low-energy laser irradiation promotes cellular redox activity.
Next Document:  940-nm laser for treatment of saphenous insufficiency: histological analysis and long-term follow-up...