Abstract：
BACKGROUND AND OBJECTIVES:Variable square pulse (VSP) Er:YAG laser should be quicker than older Er:YAG lasers. The objectives were: (1) comparison of VSP laser and mechanical handpiece efficacy for apicectomy and (2) determination of optimal pulse width/energy/frequency combination. STUDY DESIGN/MATERIALS AND METHODS:Sixty extracted, single-rooted mature human teeth with round apical parts were instrumented, root filled, cleaned, and divided into four groups. Apical 2 mm of each root were apicectomized with mechanical handpiece and Er:YAG laser with three different settings (LaserA = 200 mJ/300 microseconds/ 8 Hz; LaserB = 200 mJ/100 microseconds/8 Hz; LaserC = 380 mJ/100 microseconds/20 Hz). Timing results were statistically compared. RESULTS:LaserC was the most efficient setting. Differences between groups were significant except between LaserC-Mechanical and LaserA-LaserC (P < 0.05). CONCLUSIONS:VSP Er:YAG laser used for apicectomy is slower by a factor of 7-31 than mechanical handpiece, but treatment outcome is acceptable. Optimal settings for apicectomy with VSP laser are 380 mJ/100 microseconds/20 Hz.
journal_name
Lasers Surg Medjournal_title
Lasers in surgery and medicineauthors
Grgurević J,Grgurević L,Miletić I,Karlović Z,Krmek SJ,Anić Idoi
10.1002/lsm.20168subject
Has Abstractpub_date
2005-06-01 00:00:00pages
347-50issue
5eissn
0196-8092issn
1096-9101journal_volume
36pub_type
杂志文章abstract：BACKGROUND AND OBJECTIVES:Recently, there have been several attempts to apply the laser therapy to hypertrophic scars (HTS). In particular, the fractional laser is in the spotlight for its usefulness in rapid wound healing and dermal remodeling. However, most previous studies have focused on the ablative fractional las...
journal_title：Lasers in surgery and medicine
pub_type：
doi：10.1002/lsm.23334
更新日期：2020-10-14 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Interstitial laser therapy (ILT) is a minimally invasive treatment method for congenital vascular malformations (CVM). This study was intended to show whether or not open magnetic resonance imaging (MRI) offers a means of on-line thermometry and procedure control. STUDY DESIGN/PATIENTS AND MET...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/(sici)1096-9101(1998)23:5<250::aid-lsm4>3.
更新日期：1998-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:We developed novel heat-conducting templates, and tested whether they could effectively remove damaging heat from the tissue during laser ablation. The reduction of lateral thermal damage during cutaneous incisional laser procedures should decrease the time in wound healing. In addition, we se...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.10022
更新日期：2002-01-01 00:00:00
abstract：:Er-YAG (2.9 microns, 200 microseconds pulsewidth) and Ho-YAG (2.12 microns, 250 microseconds pulsewidth) lasers were used to irradiate bovine crystalline lenses. Mass ablated increased with increasing fluence for both lasers and was greater for the Er-YAG than the Ho-YAG laser at all fluences. The mass loss vs. fluenc...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.1900150110
更新日期：1994-01-01 00:00:00
abstract：:The effects of picosecond laser-induced optical breakdown on tissue were investigated using high-intensity 40 ps Nd:YAG laser pulses at 1.06 microns. Tissue damage was evaluated using the corneal endothelium in vitro as a model system. Systematic studies were performed to determine the scaling of the tissue damage and...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章,评审
doi：10.1002/lsm.1900090302
更新日期：1989-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:Currently there is no safe, effective, and rapid means to eliminate the pain associated with a needle insertion through the skin. It is hypothesized that ablation of the stratum corneum layer using a low energy Erbium(Er):YAG laser would allow rapid local anesthesia from a lidocaine product. ...
journal_title：Lasers in surgery and medicine
pub_type： 临床试验,杂志文章
doi：10.1002/lsm.10101
更新日期：2002-01-01 00:00:00
abstract：OBJECTIVE:Owing to skin aging and the growing demand for skin rejuvenation, minimal invasive aesthetic treatments such as laser procedures are increasingly coming into focus. However, until now, little has been known about the objective effects of these procedures with respect to skin microcirculation or changes in ski...
journal_title：Lasers in surgery and medicine
pub_type： 临床试验,杂志文章
doi：10.1002/lsm.22710
更新日期：2017-12-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:Q-switched lasers had been used in the treatment of lentigo maligna but their role remains controversial. While previous studies have addressed the change in adhesion molecule expression after sub-lethal laser damage, no study has addressed the impact of sub-lethal laser damage at a molecular ...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.10118
更新日期：2003-01-01 00:00:00
abstract：:We report the first study of the application of excimer lasers in dentistry for the treatment of dental root canals. High-energy ultraviolet (UV) radiation emitted by an XeCl excimer laser (308 nm) and delivered through suitable optical fibers can be used to remove residual organic tissue from the canals. To this aim,...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.1900090407
更新日期：1989-01-01 00:00:00
abstract：:The pulsed dye laser (wavelength 504 nm, pulse duration 1 microsecond) is widely used for fragmenting urinary and biliary calculi. In this study, the performance of this laser was compared with pulsed dye lasers producing pulse durations of 8 and 20 microseconds. Fragmentation thresholds and fragmentation rates were m...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.1900090505
更新日期：1989-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:Cryogen spray cooling (CSC) has become an integral part of dermatologic laser surgery because of its ability to remove selectively large amounts of heat from human skin in short periods of time, thereby protecting the epidermis from unintended thermal injury. The objective of the present study...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.20511
更新日期：2007-06-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Interstitial laser thermotherapy was used to treat rat liver tumours. The aim was to investigate the influence of temperature and temporary hepatic inflow occlusion on tumour growth and blood perfusion. STUDY DESIGN/MATERIALS AND METHODS:Liver tumours were treated at 44°C at the tumour border ...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.21024
更新日期：2011-01-01 00:00:00
abstract：:Thirty-six deep hepatic lesions of localized photocoagulation were induced in 11 pigs by means of a neodymium-YAG laser. Laser applications of 80 W/10 sec (10.190 W/cm2) were transmitted through a handpiece coupled to a water-cooling circulation system to protect the quartz fiber and positioned through an echo-guided ...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.1900080509
更新日期：1988-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:Holmium laser lithotripsy is the gold standard for intracorporeal fragmentation of urinary calculi. Usually, a visible beam is superimposed on the IR treatment laser as an aiming beam to guide the surgeon. In vitro tests showed that this aiming beam (532 nm, power <1 mW) excites strong fluores...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.22611
更新日期：2017-04-01 00:00:00
abstract：:We examined the response of tattoo pigments treated with three commercially available lasers: Q-switched ruby, Q-Switched neodynium:yttrium,aluminum,garnet (Nd:YAG), and the alexandrite. Tattoos applied to hairless guinea pigs and treated with the aforementioned lasers were evaluated clinically, histologically, and ul...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.1900150406
更新日期：1994-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:Intralipid (IP) is a scatterer extensively used in the building of phantoms for Biomedical Optics measurements. Recently, deviations from the linearity have been shown for the concentration scaling law of the scattering coefficient of IP water solutions at visible wavelengths. In this work thi...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.20157
更新日期：2005-06-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:Many studies of laser-induced thermal decomposition of dental enamel have demonstrated a reduction in the rate of acid dissolution, size of artificial caries-like lesions, and acid reactivity. Additionally, studies have correlated the loss of carbonate from dental enamel with a reduction in ac...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/(sici)1096-9101(1999)25:4<335::aid-lsm8>3.
更新日期：1999-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Low-intensity laser irradiation is claimed to enhance wound healing. Healing after myocardial infarction results in ventricular enlargement and wall thinning. If laser treatment accelerated cardiac healing, we speculated that ventricular remodeling would be attenuated. STUDY DESIGN/MATERIALS A...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/1096-9101(2000)27:1<29::aid-lsm4>3.0.co;2-
更新日期：2000-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:Lasers can be used to modify the chemical composition of dental enamel to increase the bond strength to restorative materials and to render the mineral phase more resistant to acid dissolution. Previous studies have suggested a synergistic relationship between CO(2) laser irradiation and fluor...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.10162
更新日期：2003-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Very few treatments for striae are based on prospective randomized trials. The objective of this study was to assess the efficacy of bipolar fractional radiofrequency and bipolar radiofrequency potentiated with infrared light, alone or combined, for treating abdominal stretch marks. STUDY DESI...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1002/lsm.22458
更新日期：2016-03-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:Riehl's melanosis is a chronic acquired hyperpigmentation disorder that causes significant cosmetic problems for patients with this condition. Several treatment options, including low-fluence Q-switched Nd:YAG (QSNY) 1064-nm laser treatment, have been attempted with inconsistent results. We ai...
journal_title：Lasers in surgery and medicine
pub_type：
doi：10.1002/lsm.23214
更新日期：2020-10-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:Although topical corticosteroids are still the first-line option for vitiligo, its efficacy is still unsatisfactory for stable vitiligo. A few studies have focused on laser-assisted drug delivery (LADD) but were limited by their sample deficiency and analyses of the influencing factors. To det...
journal_title：Lasers in surgery and medicine
pub_type：
doi：10.1002/lsm.23198
更新日期：2020-09-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Laryngeal lesions are usually investigated by microlaryngoscopy, biopsy, and histopathology. This study aimed to evaluate the combined use of Narrow Band Imaging (NBI) and High-Speed Imaging (HSI) in the differentiation of glottic lesions in awake patients. STUDY DESIGN:Prospective diagnostic ...
journal_title：Lasers in surgery and medicine
pub_type： 临床试验,杂志文章
doi：10.1002/lsm.22652
更新日期：2017-08-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:The aim of this study was to examine the influence of implant bed preparation, using either Er:YAG laser ablation, piezoelectric surgery or drill osteotomy, on osseointegration of titanium dental implants after 4, 6, and 8 weeks. MATERIAL AND METHODS:A total of 108 implants (Camlog) were plac...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.20944
更新日期：2010-09-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Short-pulse solid-state lasers have recently received much attention as new coherent light sources for medical applications, but steady transmission of their high-energy output pulses through a solid quartz fiber is difficult because of the onset of laser-induced breakdown. We previously demons...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.20210
更新日期：2005-08-01 00:00:00
abstract：:One carotid from each dog underwent a laser anastomosis and the other carotid an interrupted suture repair. One or eight weeks later (n greater than or equal to 4 dogs/time period); four rings (1 mm in length) containing the laser or suture anastomosis or the normal artery (two/dog) were removed. Using a photoelectric...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.1900120213
更新日期：1992-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:We reported the use of Holmium-YAG laser in the management of a foreign body impacted in the esophagus. STUDY DESIGN/PATIENTS AND METHODS:Esophagoscopy was performed on a man with a denture impacted in the esophagus. The denture was disimpacted into the stomach and fractured with Holmium-YAG l...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/(sici)1096-9101(1997)20:4<480::aid-lsm16>3
更新日期：1997-01-01 00:00:00
abstract：:The CO2 laser has provided the otolaryngologist/head and neck surgeon with a valuable addition in the diagnosis and treatment of malignant disease of the oral cavity. It is also helpful in the treatment of the premalignant clinical leukoplakias of the oral cavity. Carcinoma in situ has been diagnosed and treated succe...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.1900060504
更新日期：1986-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Light dosimetry for endobronchial photodynamic therapy is not very advanced to date. This study investigates the dependency of the fluence rate distribution in the bronchial wall on several parameters. STUDY DESIGN/MATERIALS AND METHODS:A Monte Carlo model is employed for the illumination of a...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/(sici)1096-9101(1998)22:4<193::aid-lsm3>3.
更新日期：1998-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Repair of peripheral nerve injuries remains a major challenge in restorative medicine. Effective therapies that can be used in conjunction with surgical nerve repair to improve nerve regeneration and functional recovery are being actively investigated. It has been demonstrated by a number of pe...
journal_title：Lasers in surgery and medicine
pub_type： 杂志文章
doi：10.1002/lsm.22212
更新日期：2014-01-01 00:00:00
