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KMID : 0362720090470080479
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The Journal of the Korean Dental Association
2009 Volume.47 No. 8 p.479 ~ p.486
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Application of Nd-YAP laser to the conventional treatment of periodontal and endodontic combined lesions
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Kang He-Kyong
Yoon Ho-Jung
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Abstract
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Purpose: The aim of this study was to show the clinical results of combination of Nd-YAP (1340nm) laser therapy with conventional endodontic and periodontal treatment.
Materials and Methods: Four patients with chronic advanced periodontitis and endodontic infection were treated with conventional treatment and Nd-YAP laser therapy. Occlusal adjustment and splinting were done for stabilization of the teeth with severe horizontal and vertical mobility. The protocol for periodontal treatment was followed as scaling and root planing, pocket irrigation with 3% H2O2, and exposure of Nd-YAP laser using 320 optical fiber with 160mJ/pluse, 30Hz. The other protocol for endodontic treatment was followed as access opening, canal preparation by hand and rotary instrument, canal filling, and exposure of Nd- YAP laser using 200 optical fiber with 200mJ/pluse, 10Hz and 180mJ/pluse, 5Hz which were used respectively for disinfection and canal filling. The assessments of probing depth, mobility, and radiography were made prior to and after treatment.
Result: All of these four clinical cases showed good healing of periodontium, which presented decrease of mobility and pocket depth, and increase of bone regeneration and bone density on the radiography.
Conclusion: The bactericidal effect of Nd-YAP laser would provide benefits for improving clinical results that are obtained from conventional therapy.
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KEYWORD
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bactericidal effect, conventional therapy, Nd-YAP laser, optical fiber, periodontal and endodontic combined lesion
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