Abstract：
:Delivery of intradermally focused nanosecond laser pulses with small energy as an alternate technique applicable to clinical procedures in dermatological and plastic surgery is an area of relatively new interest with multiple potential applications. We assessed this approach on common tattoo pigments in dermis in an in vivo study using a wavelength of 1064 nm. Paired micropigs were tattooed with standard blue, black, green and red pigments. The tattoos were allowed to mature and then treated by 12 ns pulses in a focused beam of 11.4 degrees cone angle. Visual observation and histological analysis of biopsies were performed to evaluate results. Significant reduction in pulse energy and collateral damage was achieved with pulse energy ranging between 38 to 63 mJ. Blue and black tattoos were found to respond well from a clinical standpoint. The depth dependence of tissue response and pigment redistributions at 1 hour, 1 week and 1 month after laser treatment was quantitatively analysed through biopsies and a strong relationship was demonstrated between tattoo response and laser-induced dermal vacuolation. The optical absorption coefficients of the four tattoo pigments were measured to be approximately the same and the laser-induced plasma is suggested to be responsible for the pigment redistribution. As we hypothesised, intradermal focusing of nanosecond pulses significantly reduced required pulse energy for tattoo ablation to about 60 mJ or less. These results stimulate a number of additional questions relevant not only to clinical applications but also to the understanding of the fundamental process of laser-pigment interaction in the dermis as it relates to tattoo removal.
journal_name
Lasers Med Scijournal_title
Lasers in medical scienceauthors
Hu XH,Wooden WA,Vore SJ,Cariveau MJ,Fang Q,Kalmus GWdoi
10.1007/s101030200025subject
Has Abstractpub_date
2002-01-01 00:00:00pages
154-64issue
3eissn
0268-8921issn
1435-604Xjournal_volume
17pub_type
杂志文章abstract：:Although some studies claim to the increase of composite resin adhesion to Er:YAG-laser-treated dentin, there are still no reports on the adhesion of composite resin cements to the irradiated surface. This in vitro study evaluated the tensile bond strength (TBS) of a composite resin cement to dentin treated with the E...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-006-0433-7
更新日期：2007-09-01 00:00:00
abstract：:The optical properties of the skin (absorption coefficient, scattering coefficient, refractive index) may serve to characterize the skin and are important for correct light dosimetry in many optical diagnostic procedures and laser treatments especially photodynamic therapy and laser therapy. We determined in vivo the ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-009-0725-9
更新日期：2010-03-01 00:00:00
abstract：:Our previous in vitro study has shown that toluidine blue (TB)-mediated lethal photosensitization of periodontal pathogens (PPs) from periodontal patients is possible. The purpose of this study was to investigate whether TB-mediated photosensitization exerted damaging effects on periodontal tissues in mice. Twenty-fou...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-007-0513-3
更新日期：2009-03-01 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/s10103-017-2391-7
更新日期：2018-02-01 00:00:00
abstract：:Selecting the most representative site for biopsy is crucial in establishing a definitive diagnosis of oral epithelial dysplasia. The current process involves clinical examination that can be subjective and prone to sampling errors. The aim of this study was therefore to investigate the use of optical coherence tomogr...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-0975-1
更新日期：2012-07-01 00:00:00
abstract：:The aims of this study were to evaluate the effects of Photogem®-mediated photosensitization on rat palatal mucosa and the biodistribution of the photosensitizer in this tissue. A solution of Photogem® (500 or 1000 mg/l) was applied to the palatal mucosa for 30 min and the exposure time to blue LED (460 nm) was 20 min...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-0909-y
更新日期：2012-03-01 00:00:00
abstract：:A retrospective study was conducted to investigate the incidence of reported adverse responses after epilatory laser treatment to control the growth of facial hair in patients with polycystic ovary syndrome. Forty-eight patients received a median of 6 (range 2-11) treatments with an Aesculap ruby laser during a 704 da...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-007-0451-0
更新日期：2008-01-01 00:00:00
abstract：:The Achilles tendon has a high incidence of rupture, and the healing process leads to a disorganized extracellular matrix (ECM) with a high rate of injury recurrence. To evaluate the effects of different conditions of low-level laser (LLL) application on partially tenotomized tendons, adult male rats were divided into...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-012-1236-7
更新日期：2013-09-01 00:00:00
abstract：:Previous studies have been suggested that photodynamic therapy (PDT) can be used as an adjuvant treatment for denture stomatitis. In this study, we evaluated the effects of multiple sessions of PDT on Candida glabrata biofilms in specimens of polymerized acrylic resin formed after 5 days. Subsequently, four applicatio...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2147-4
更新日期：2017-04-01 00:00:00
abstract：:Oral mucositis (OM) and radiodermatitis (RD) are serious side effects of radiotherapy (RT), often leading to its suspension, need for analgesics, and enteral/parenteral nutrition. Laser therapy is becoming a recommended treatment option. This prospective study aimed at demonstrating the beneficial effect of class IV l...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-015-1857-8
更新日期：2016-04-01 00:00:00
abstract：:Antimicrobial photodynamic therapy represents an alternative method of killing resistant pathogens. Efforts have been made to develop delivery systems for hydrophobic drugs to improve the photokilling. This study evaluated the photodynamic effect of chloro-aluminum phthalocyanine (ClAlPc) encapsulated in nanoemulsions...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-013-1354-x
更新日期：2015-02-01 00:00:00
abstract：:Wound healing is a very complex process, some phases of which have only recently been explained. Magnetic and electromagnetic fields can modulate this process in a non-thermal way. The aim of this research was to compare the influence of constant and pulsed electromagnetic fields and low-level laser therapy (LLLT) on ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-008-0564-0
更新日期：2009-05-01 00:00:00
abstract：:Oral lichen planus (OLP) is an inflammatory disease that can be painful, mainly in the atrophic and erosive forms. Numerous drugs have been used with dissimilar results, but most treatments are empirical. However, to date, the most commonly employed and useful agents for the treatment of OLP are topical corticosteroid...
journal_title：Lasers in medical science
pub_type： 临床试验,杂志文章
doi：10.1007/s10103-013-1313-6
更新日期：2014-01-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-014-1655-8
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,评审
doi：10.1007/s10103-016-1929-4
更新日期：2016-08-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2369-5
更新日期：2018-02-01 00:00:00
abstract：:We report the use of spectral domain polarization sensitive optical coherence tomography for ex-vivo imaging of human oral mandibular tissue samples. Our results show that compared to the changes observed in the epithelium thickness and the decay constant of A-scan intensity profile, a much larger degree of change was...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-016-2096-3
更新日期：2017-01-01 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/s10103-010-0807-8
更新日期：2011-11-01 00:00:00
abstract：:In periodontal therapy, the use of low-level diode lasers has recently been considered to improve wound healing of the gingival tissue. However, its effects on human gingival epithelial cells (HGECs) remain unknown. The aim of the present study was to examine whether high-frequency low-level diode laser irradiation st...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-013-1292-7
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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： 临床试验,杂志文章
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更新日期：2016-09-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-007-0487-1
更新日期：2008-10-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章,评审
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更新日期：2020-08-01 00:00:00
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journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02941-y
更新日期：2020-09-01 00:00:00
abstract：:Transoral laser microsurgery (TLM) is an emerging technique for the management of laryngeal and other head and neck malignancies. It is increasingly being used in place of traditional open surgery because of lower morbidity and improved organ preservation. Since the surgery is performed from the inside working outward...
journal_title：Lasers in medical science
pub_type： 杂志文章,评审
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更新日期：2011-01-01 00:00:00
abstract：:The aim of this in vitro study was to evaluate some parameters of dental etching when irradiated with an erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser. One-hundred sound human third molars were selected and randomly distributed into ten groups (n = 10). The class V cavities of group 1 (control) w...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-008-0623-6
更新日期：2010-05-01 00:00:00
abstract：:The aim of the present study was to investigate laser-fluorescence effects on the root surface. The possibility of detecting subgingival calculus should be evaluated to control complete calculus removal after scaling and root planing. Twenty freshly extracted human teeth, partially covered with calculus on the root su...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-002-0241-7
更新日期：2003-01-01 00:00:00
abstract：:Recent studies have shown that direct laser metal sintering (DLMS) produces structures with complex geometry and consequently that allow better osteoconductive properties. The aim of this patient report was to evaluate the early bone response to DLMS implant surface retrieved from human jaws. Four experimental DLMS im...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-010-0831-8
更新日期：2011-01-01 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
abstract：:Fungal infection of nails, onychomycosis, is predominantly caused by Trichophyton rubrum. This infection is an important public health concern due to its persistent nature and high recurrence rates. Alternative treatments are urgently required. One such alternative is phototherapy involving the action of photothermal ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-013-1287-4
更新日期：2014-01-01 00:00:00
