Abstract：
:The purpose of this study was to evaluate the surface and intrapulpal temperatures after treatments with different bleaching gels subjected to different types of light activation. A K-type thermocouple and infrared thermometer were used to measure the temperature increase during the 15- or 30-min treatment period. Light-emitting diode with a center wavelength of 405 nm (LED405), organic light-emitting diode (OLED), and femtosecond laser were tested and compared to ZOOM2. The tooth surface was treated with five bleaching agents and Vaseline which served as a control.The generalized estimating equation (GEE) model was applied for testing the differences in temperature increase. The ZOOM2 light source led to the largest increase in mean pulpal and tooth surface temperatures of 21.1 and 22.8 °C, followed by focused femtosecond laser which increased the pulpal and surface temperatures by up to 15.7 and 16.8 °C. Treatments with unfocused femtosecond laser, LED405, and OLED induced significantly lower mean temperature increases (p < 0.001 for each comparison with ZOOM2 and focused femtosecond laser), both in the pulp chamber (up to 2.7, 2.5, and 1.4 °C) and at the tooth surface (up to 3.2, 3.4, and 1.8 °C). Significant differences between pulp chamber and tooth surface measurements were obtained for all types of bleaching gel, during treatments with ZOOM2 (p < 0.001), LED405 (p < 0.001), and unfocused (p < 0.001) and focused femtosecond laser (p ≤ 0.002). Different bleaching agents or Vaseline can serve as an isolating layer. Focused femtosecond laser and ZOOM2 produced large temperature increases in the pulp chamber and at the tooth surface. Caution is advised when using these types of light activation, while LED405, OLED, and unfocused femtosecond laser could be safely used.
journal_name
Lasers Med Scijournal_title
Lasers in medical scienceauthors
Klaric E,Rakic M,Sever I,Tarle Zdoi
10.1007/s10103-013-1366-6subject
Has Abstractpub_date
2015-02-01 00:00:00pages
567-76issue
2eissn
0268-8921issn
1435-604Xjournal_volume
30pub_type
杂志文章abstract：:Recent studies have investigated whether low level laser therapy (LLLT) can optimize human muscle performance in physical exercise. This study tested the effect of LLLT on muscle performance in physical strength training in humans compared with strength training only. The study involved 36 men (20.8±2.2 years old), cl...
journal_title：Lasers in medical science
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abstract：:The purpose of the study was to evaluate the adaptation and micro-structure of Co-Cr alloy maxillary complete denture base plates fabricated by the selective laser melting (SLM) technique. Twenty pairs of edentulous casts were randomly and evenly divided into two groups, and manufacturing of the Co-Cr alloy maxillary ...
journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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doi：10.1007/s10103-015-1755-0
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journal_title：Lasers in medical science
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abstract：:Low-intensity laser therapy is based on the excitation of endogenous chromophores in biotissues and free-radical generation could be involved in its biological effects. In this work, the effects of the low-intensity infrared laser on plasma protein content and oxidative stress in blood from Wistar rats were studied. B...
journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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更新日期：2004-01-01 00:00:00
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-012-1158-4
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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更新日期：2016-07-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-018-2501-1
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
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journal_title：Lasers in medical science
pub_type： 杂志文章
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journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
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更新日期：2018-12-01 00:00:00
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journal_title：Lasers in medical science
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