Abstract:
:This ablation rate study has been carried out with a fibre-deliverable, 308 nm, XeCl laser, producing long pulses of 200 ns as opposed to the usual 10-20 ns. This in-depth study aimed to evaluate the ablation rates for this longer pulse length. The effects on the ablation depth of dentine, enamel, soft tissue and bone were investigated ex vivo. Radiant exposure, number of pulses, pulse repetition rate and spot size were independently varied. For all tissues, ablation depth per pulse was found to increase, initially, linearly with radiant exposure. For both dentine and soft tissue a saturation radiant exposure was determined; thereafter the ablation rate decreased. The depth per pulse increased linearly with repetition rate but decreased logarithmically with both number of pulses and spot size. The ablation depth due to a 200 ns pulse is comparable to that caused by a 10-20 ns pulse but has the advantage of fibre delivery.
journal_name
Lasers Med Scijournal_title
Lasers in medical scienceauthors
Murray AK,Dickinson MRdoi
10.1007/s10103-004-0315-9subject
Has Abstractpub_date
2004-01-01 00:00:00pages
127-38issue
3eissn
0268-8921issn
1435-604Xjournal_volume
19pub_type
杂志文章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
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abstract::The aim of the study was to investigate the effect of low-level 809 nm laser irradiation on the proliferation rate of human larynx carcinoma cells in vitro. Epithelial tumor cells were obtained from a laryngeal carcinoma and cultured under standard conditions. For laser treatment the cells were spread on 96-well tissu...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-003-0265-7
更新日期:2003-01-01 00:00:00
abstract::The aim of this in vitro study was to evaluate the effect of laser treatment on shear bond strength of a self-adhesive flowable resin composite to human dentin. Eighty extracted sound human molar teeth were used for the study. The teeth were sectioned mesiodistally and embedded in acrylic blocks. The dentin surfaces w...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-012-1158-4
更新日期:2013-01-01 00:00:00
abstract::Neurofibromatosis type 1 (NF-1) is an autosomal dominant disorder characterized by skin tumours derived from peripheral nerves. It is a clinically diagnosed disorder of a mainly cosmetic concern. There are different excision modalities for treatment of cutaneous neurofibromas; however, none is considered to be univers...
journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-007-0485-3
更新日期:2008-07-01 00:00:00
abstract::Epithelial cells play an important role in reparative events. Therefore, therapies that can stimulate the proliferation and metabolism of these cells could accelerate the healing process. To evaluate the effects of low-level laser therapy (LLLT), human keratinocytes were irradiated with an InGaAsP diode laser prototyp...
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::Lasers and light-emitting diodes are used for a range of biomedical applications with many studies reporting their beneficial effects. However, three main concerns exist regarding much of the low-level light therapy (LLLT) or photobiomodulation literature; (1) incomplete, inaccurate and unverified irradiation paramete...
journal_title:Lasers in medical science
pub_type: 杂志文章,评审
doi:10.1007/s10103-016-1914-y
更新日期:2016-05-01 00:00:00
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
pub_type: 杂志文章,随机对照试验
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journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-014-1572-x
更新日期:2015-05-01 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,meta分析,评审
doi:10.1007/s10103-016-1885-z
更新日期:2016-04-01 00:00:00
abstract::The current study evaluates whether the addition of low-level laser therapy into standard conventional physical therapy in elderly with bilateral symptomatic tri-compartmental knee arthritis can successfully postpone the need for joint replacement surgery. A prospective randomized cohort study of 100 consecutive unsel...
journal_title:Lasers in medical science
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10103-015-1814-6
更新日期:2015-12-01 00:00:00
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journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-017-2261-3
更新日期:2017-11-01 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:2019-04-01 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:2006-12-01 00:00:00
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journal_title:Lasers in medical science
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更新日期:2015-08-01 00:00:00
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journal_title:Lasers in medical science
pub_type: 杂志文章
doi:10.1007/s10103-012-1108-1
更新日期:2013-01-01 00:00:00
abstract::Down syndrome (DS) has characteristics that include mental retardation, a characteristic phenotype, congenital heart defects, immune disorders, and increased risk of periodontal disease (PD). Antimicrobial photodynamic therapy (aPDT) is the combined use of photosensitizers associated with low-level laser (LLL) and oxy...
journal_title:Lasers in medical science
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10103-016-2020-x
更新日期:2016-12-01 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,随机对照试验
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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,meta分析,评审
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abstract::Neuropathic pain (NP) is caused by damage to the nervous system due to reactive oxygen spices (ROS) increase, antioxidants reduction, ATP production imbalance, and induction of apoptosis. In this investigation, we applied low-level laser 660 nm (photobiomodulation therapy) as a new strategy to modulate pain. In order ...
journal_title:Lasers in medical science
pub_type: 杂志文章
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abstract::Low-level laser therapy (LLLT) induces anti-inflammatory and angiogenic activities in wound healing. However, the mechanism of action and optimal parameters require further clarification. In this study, we investigated the effects of LLLT on wound healing matrix metalloproteinase (MMP)-2 immunoexpression and angiogeni...
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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