Abstract：
:The purpose of this in vitro study was to observe the morphological changes and apical dye penetration at apical dentin surfaces after apicoectomy with conventional techniques and laser beam. Sixty single-rooted extracted teeth were selected for the study. The crowns were resected below the cemento-enamel junction. Then, these teeth were treated endodontically and filled with gutta-percha using AH-26 root canal sealer. The teeth were randomly divided into four groups of 15 teeth in each. The roots were resected perpendicular to its long axis 3 mm from the apex using Er: yttrium-aluminium-garnet (YAG) laser irradiation in groups 1 and 2, and the resected root surfaces were lased with Nd:YAG laser in group 2. The apexes were resected by a high-speed handpiece in groups 3 and 4, and the resected root surfaces were lased with Nd:YAG laser in group 4. Ten teeth in each group were used for leakage studies, and the other five teeth were used for scanning electron microscopic examinations. Seven sections were obtained from each root to assess the microleakage, and the sections were analyzed in a computer-assisted manner. No statistically significant differences were observed between the leakage percentage of groups 1 and 3 and groups 2 and 4 (p>0.05). Morphological differences were observed between apical dentin surfaces resected with conventional techniques and laser beam.
journal_name
Lasers Med Scijournal_title
Lasers in medical scienceauthors
Arisu HD,Sadik B,Bala O,Türköz Edoi
10.1007/s10103-007-0497-zsubject
Has Abstractpub_date
2008-10-01 00:00:00pages
415-20issue
4eissn
0268-8921issn
1435-604Xjournal_volume
23pub_type
杂志文章abstract：:Protoporphyrin IX (PpIX) is the photosensitizer in 5-aminolaevulinic acid (ALA)-based photodynamic therapy (PDT). Its further bioconversion to heme requires iron and can be suppressed by iron chelators such as desferrioxamine (DFO). To investigate the effectiveness of DFO in enhancing PpIX-based PDT in skin tissue, we...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-009-0721-0
更新日期：2010-03-01 00:00:00
abstract：:The biodistribution and pharmacokinetics of meta-tetra(hydroxyphenyl)chlorin (mTHPC)(1) have been documented in humans, rats, dogs and rabbits. It has been demonstrated to be an effective photodynamic therapy agent for treatment of squamous cell carcinoma. Squamous cell carcinoma is a common feline neoplasm, causing s...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s101030200014
更新日期：2002-01-01 00:00:00
abstract：:The aim of the present study was to investigate the influence of low-level red (660 nm) and infrared (780 nm) laser with four different radiance exposures on human umbilical vein endothelial cells (HUVECs) in vitro. HUVECs (1.5 × 104) were incubated in 96-well culture plates. The cells were maintained in M199 medium s...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03016-z
更新日期：2021-02-01 00:00:00
abstract：:Compensatory hypertrophy (CH) occurs due to excessive mechanical load on a muscle, promoting an increase in the size of muscle fibers. In clinical practice, situations such as partial nerve injuries, denervation, and muscle imbalance caused by trauma to muscles and nerves or diseases that promote the loss of nerve con...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03095-y
更新日期：2020-07-07 00:00:00
abstract：:The effect of phototherapy with 890-nm light-emitting diodes (LEDs) on the healing of experimentally induced tendinitis in sheep was evaluated in this study. Partial tenotomies measuring 0.2 cm wide × 0.5 cm long were performed on the second third of the superficial digital flexor tendons of 10 healthy sheep. The anim...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-014-1641-1
更新日期：2015-01-01 00:00:00
abstract：:Primary hepatocellular carcinoma (HCC) and colon carcinoma are two of the most common clinical malignancies along with high morbidity and mortality. As low-power laser irradiation (LPLI) can induce cytotoxicity or cell apoptosis on several types of hyperplasia, LPLI may be a potential alternative treatment for gastroe...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02869-3
更新日期：2020-04-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章
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更新日期：2013-01-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 临床试验,杂志文章
doi：10.1007/s10103-018-2531-8
更新日期：2018-11-01 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
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更新日期：2014-11-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-018-2667-6
更新日期：2019-07-01 00:00:00
abstract：:Precise nerve localization is of major importance in both surgery and regional anesthesia. Optically based techniques can identify tissue through differences in optical properties, like absorption and scattering. The aim of this study was to evaluate the potential of optical spectroscopy (diffuse reflectance spectrosc...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2433-1
更新日期：2018-04-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-012-1057-8
更新日期：2013-02-01 00:00:00
abstract：:In spinal cord injury (SCI), inflammation is a major mediator of damage and loss of function and is regulated primarily by the bone marrow-derived macrophages (BMDMs). Photobiomodulation (PBM) or low-level light stimulation is known to have anti-inflammatory effects and has previously been used in the treatment of SCI...
journal_title：Lasers in medical science
pub_type： 杂志文章
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更新日期：2020-09-01 00:00:00
abstract：:Low-level laser therapy (LLLT) has proved to have biostimulating effects on tissues over which they are applied, therefore accelerating the healing process. Most studies in implantology were focused on a reduction of the duration of osseointegration. There exist few articles analyzing the potential effects of these th...
journal_title：Lasers in medical science
pub_type： 杂志文章,评审
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更新日期：2016-02-01 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
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更新日期：2014-11-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s101030200038
更新日期：2002-01-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-014-1704-3
更新日期：2015-09-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章,meta分析,评审
doi：10.1007/s10103-017-2412-6
更新日期：2018-02-01 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
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journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s101030050010
更新日期：1998-12-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章
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更新日期：2009-11-01 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
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更新日期：2020-12-01 00:00:00
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journal_title：Lasers in medical science
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更新日期：2017-09-01 00:00:00
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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：2019-10-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-013-1296-3
更新日期：2014-01-01 00:00:00
abstract：:In this study, we compared the microleakage of composite fillings cured with halogen bulb, LED and argon ion laser (488 nm). Twenty-four extracted human molars were divided randomly in three groups. Six cavities were prepared on the coronal part of each tooth. Standard cavities (1.7 x 2 mm) were prepared. Cavities wer...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-007-0504-4
更新日期：2009-01-01 00:00:00
abstract：:The authors tested the diagnostic potential of the portable autofluorescence optical system that was developed in the preoperative evaluation of resection margins, and thus of the resection line safety in patients with low-positioned colorectal carcinoma. A total of 217 spectral measurements of the fluorescence proper...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-010-0847-0
更新日期：2011-05-01 00:00:00
