Modeling the modification depth of carbon dioxide laser-treated dental enamel.

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 acid dissolution. Dental mineral consists of hydroxyapatite with many substitutions, the major one being carbonate ( approximately 3-5% by weight), which markedly affects acid reactivity. The principle objective of the present work was to determine the precise depth of modification, i.e. , thermally induced decomposition of dental enamel (carbonate loss), at the predicted optimum laser irradiation parameters. STUDY DESIGN/ MATERIALS AND METHODS: Bovine enamel blocks were irradiated at lambda = 9.6 microm with 2-microsec and 100-microsec pulses and at lambda = 10.6 microm with 2-microsec pulses. Carbonate loss was calculated from infrared spectra as a function of depth and compared to numerical simulations of the maximum temperature rise. RESULTS:Carbonate loss was initiated at temperatures greater than 400 degrees C, but was complete only after repeated irradiation of the surface above the melting threshold. Carbonate loss of dental enamel irradiated at 9.6 microm with a 100-microsec pulse and at 10.6 microm with a 2-microsec pulse was greater than that of enamel irradiated at 9.6 microm with a 2-microsec pulse. The depth of carbonate loss in dental enamel irradiated with a 2-microsec pulse was greater for lambda = 10.6 microm than for lambda = 9.6 microm. CONCLUSION:The depth of modification is consistent with the presented model that incorporates the absorption depth and thermal relaxation time/pulse duration. However, repeated irradiation is required for complete removal of carbonate, depending on absorption depth and pulse duration.

journal_name

Lasers Surg Med

authors

Zuerlein MJ,Fried D,Featherstone JD

doi

10.1002/(sici)1096-9101(1999)25:4<335::aid-lsm8>3.

subject

Has Abstract

pub_date

1999-01-01 00:00:00

pages

335-47

issue

4

eissn

0196-8092

issn

1096-9101

pii

10.1002/(SICI)1096-9101(1999)25:4<335::AID-LSM8>3.

journal_volume

25

pub_type

杂志文章
  • Autofluorescence spectroscopy using a XeCl excimer laser system for simultaneous plaque ablation and fluorescence excitation.

    abstract::Laser-induced fluorescence may be used to guide laser ablation of atherosclerotic lesions. This study was performed to evaluate arterial autofluorescence spectroscopy in vitro using a single XeCl excimer laser (308 nm) for simultaneous tissue ablation and fluorescence excitation. The laser beam was coupled to a 600-mi...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900140306

    authors: Morguet AJ,Körber B,Abel B,Hippler H,Wiegand V,Kreuzer H

    更新日期:1994-01-01 00:00:00

  • CO2 Laser Cordectomy Versus KTP Laser Tumor Ablation for Early Glottic Cancer: A Randomized Controlled Trial.

    abstract:BACKGROUND AND OBJECTIVES:CO2 laser cordectomy has been the workhorse of laser surgery for early glottic squamous cell carcinoma (GSCC) since the early 1970s. During the last decades, potassium titanyl phosphate (KTP) laser surgery for early GSCC gained popularity, introducing the tumor ablation technique. Yet, there a...

    journal_title:Lasers in surgery and medicine

    pub_type:

    doi:10.1002/lsm.23202

    authors: Lahav Y,Cohen O,Shapira-Galitz Y,Halperin D,Shoffel-Havakuk H

    更新日期:2020-09-01 00:00:00

  • Intense pulsed light and Nd:YAG laser non-ablative treatment of facial rhytids.

    abstract:BACKGROUND AND OBJECTIVE:The aim of this study was to evaluate the efficacy and safety of the intense pulsed light source (IPL) and the Nd:YAG laser in the treatment of facial rhytids. Both systems can be used in a non-ablative manner and cause a dermal wound. This is thought to stimulate the production of new collagen...

    journal_title:Lasers in surgery and medicine

    pub_type: 临床试验,杂志文章

    doi:10.1002/lsm.1029

    authors: Goldberg DJ,Samady JA

    更新日期:2001-01-01 00:00:00

  • Hollow-waveguide-based nanosecond, near-infrared pulsed laser ablation of tissue.

    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

    authors: Sato S,Shi YW,Matsuura Y,Miyagi M,Ashida H

    更新日期:2005-08-01 00:00:00

  • Evaluation of the combined use of narrow band imaging and high-speed imaging to discriminate laryngeal lesions.

    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

    authors: Volgger V,Felicio A,Lohscheller J,Englhard AS,Al-Muzaini H,Betz CS,Schuster ME

    更新日期:2017-08-01 00:00:00

  • Comparison of 810 nm and 1064 nm wavelengths for interstitial laser photocoagulation in rabbit brain.

    abstract:BACKGROUND AND OBJECTIVE:This laboratory animal study is a comparison of Nd:YAG 1064 nm and diode 810 nm laser wavelengths in brain interstitial laser photocoagulation (ILP). Specific goals were to identify potential complications and physical characteristics of the thermal damage at both wavelengths prior to undertaki...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/(sici)1096-9101(1997)21:1<50::aid-lsm8>3.0

    authors: Wyman DR,Schatz SW,Maguire JA

    更新日期:1997-01-01 00:00:00

  • New device for visual neodymium:YAG laser prostate ablation: acute and chronic canine evaluation.

    abstract::This canine study (n = 6) evaluated the acute and chronic effects of Nd:YAG laser prostatectomy using a Prolase II fiber. The Prolase II device consists of a 1,000 microns quartz fiber which directs a cone of Nd:YAG laser energy, at 45 degrees to the axis of the fiber, into the prostatic urethra under direct visual gu...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900150304

    authors: Kopchok GE,Back M,White RA,Cavaye DM,Peng SK,Moriel E,Rajfer J

    更新日期:1994-01-01 00:00:00

  • In situ analysis of breast cancer progression in murine models using a macroscopic fluorescence imaging system.

    abstract:BACKGROUND AND OBJECTIVE:The goal of this study was to use an inexpensive macroscopic imaging system to monitor tumor progression in mouse models in real-time with minimal intervention. STUDY DESIGN/MATERIALS AND METHODS:Illumination is provided via a xenon arc lamp and a fiber optic probe which delivers white light o...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.20409

    authors: Carlson AL,Hoffmeyer MR,Wall KM,Baugher PJ,Richards-Kortum R,Dharmawardhane SF

    更新日期:2006-12-01 00:00:00

  • The Impact of Color Fidelity on Evaluation of Patients in the Outpatient Dermatologic Setting.

    abstract:BACKGROUND AND OBJECTIVES:To demonstrate that high color fidelity light-emitting diode (LED) sources are preferred by dermatologists for the evaluation of patients during standard-of-care, outpatient visits when compared to low color fidelity LED sources similar to fluorescent lighting. STUDY DESIGN/MATERIALS AND METH...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.23352

    authors: Juhasz M,Pham C,Allen R,Harper A,Siminovitch M,Brase W,Linden K,Zachary C,Atanaskova Mesinkovska N

    更新日期:2020-11-08 00:00:00

  • Quantitative measurements of linear birefringence during heating of native collagen.

    abstract:BACKGROUND AND OBJECTIVE:Linear birefringence is an anisotropic property of rat tail tendon, which is largely composed of collagen. Our goal is to show that the dynamic range and sensitivity of the linear birefringence loss of collagen during heating are sufficient for kinetic modeling of the reaction. STUDY DESIGN, M...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/(sici)1096-9101(1997)20:3<310::aid-lsm10>3

    authors: Maitland DJ,Walsh JT Jr

    更新日期:1997-01-01 00:00:00

  • Low level laser therapy for the management of breast cancer-related lymphedema: A randomized controlled feasibility study.

    abstract:OBJECTIVES:This study aimed to determine the feasibility of conducting a full scale randomized controlled trial investigating the effectiveness of low level laser therapy (LLLT), also known as photobiomodulation (PBM) therapy, used in addition to conventional therapy, for managing breast cancer related lymphedema (BCRL...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章,随机对照试验

    doi:10.1002/lsm.22947

    authors: Baxter GD,Liu L,Tumilty S,Petrich S,Chapple C,Anders JJ,Laser Lymphedema Trial Team.

    更新日期:2018-09-01 00:00:00

  • Enhanced tumor control following sequential treatments of photodynamic therapy (PDT) and localized microwave hyperthermia in vivo.

    abstract::Photodynamic therapy (PDT), or photoradiation therapy (PRT), utilizing hematoporphyrin derivative (HPD) as photosensitizer and an argon-dye laser system as the light source, was used alone and in combination with localized microwave hyperthermia (2450 MHz) to treat axillary tumors of the SMT-F mammary carcinoma in mic...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900040111

    authors: Waldow SM,Henderson BW,Dougherty TJ

    更新日期:1984-01-01 00:00:00

  • A Comparison of Human and Porcine Skin in Laser-Assisted Drug Delivery of Chemotherapeutics.

    abstract:BACKGROUND AND OBJECTIVES:Porcine skin is a widely used model in diffusion studies, but its usefulness for laser-assisted drug delivery (LADD) has not been evaluated in comparison with human skin. This study compared porcine and human skin in ex vivo LADD diffusion studies. STUDY DESIGN/MATERIALS AND METHODS:Ex vivo a...

    journal_title:Lasers in surgery and medicine

    pub_type:

    doi:10.1002/lsm.23344

    authors: Rosenberg LK,Bagger C,Janfelt C,Haedersdal M,Olesen UH,Lerche CM

    更新日期:2020-11-08 00:00:00

  • Dentin ablation with three infrared lasers.

    abstract:BACKGROUND AND OBJECTIVE:Lasers are used for caries removal in enamel and dentin, but are currently limited in their ability to remove sound tooth structure. In this study plasma interaction regimes are investigated as the principal factor determining the ablation characteristics. STUDY DESIGN/MATERIALS AND METHODS:Th...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/(SICI)1096-9101(1996)18:2<121::AID-LSM1>3.

    authors: Neev J,Pham K,Lee JP,White JM

    更新日期:1996-01-01 00:00:00

  • Light emitting diode irradiation protect against the amyloid beta 25-35 induced apoptosis of PC12 cell in vitro.

    abstract:BACKGROUND AND OBJECTIVES:Whether light emitting diode (LED) irradiation has effects on "beta-amyloid (A beta) induced apoptosis," a leading hypothesis of the cause of Alzheimer's disease (AD), or not? STUDY DESIGN/MATERIALS AND METHODS:Monolayer cell cultures of PC12 were subjected to A beta or/and LED irradiation at...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.10216

    authors: Duan R,Zhu L,Liu TC,Li Y,Liu J,Jiao J,Xu X,Yao L,Liu S

    更新日期:2003-01-01 00:00:00

  • Optimizing light dosimetry in photodynamic therapy of early stage carcinomas of the esophagus using fluorescence spectroscopy.

    abstract:BACKGROUND AND OBJECTIVE:Under standardized conditions (drug and light dose, timing), the result of the photodynamic therapy (PDT) of carcinomas of the esophagus with tetra(meta-hydroxyphenyl)chlorin (mTHPC) shows large variations between patients. STUDY DESIGN/MATERIALS AND METHODS:Before patients underwent PDT treat...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/(SICI)1096-9101(1996)19:3<340::AID-LSM10>3

    authors: Braichotte DR,Savary JF,Monnier P,van den Bergh HE

    更新日期:1996-01-01 00:00:00

  • Cryogen spray cooling in laser dermatology: effects of ambient humidity and frost formation.

    abstract:BACKGROUND AND OBJECTIVE:Dynamics of cryogen spray deposition, water condensation and frost formation is studied in relationship to cooling rate and efficiency of cryogen spray cooling (CSC) in combination with laser dermatologic surgery. STUDY DESIGN/MATERIALS AND METHODS:A high-speed video camera was used to image t...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1076

    authors: Majaron B,Kimel S,Verkruysse W,Aguilar G,Pope K,Svaasand LO,Lavernia EJ,Nelson JS

    更新日期:2001-01-01 00:00:00

  • Autofluorescence and diffuse reflectance spectroscopy and spectral imaging for breast surgical margin analysis.

    abstract:BACKGROUND AND OBJECTIVE:Most women with early stage breast cancer have the option of breast conserving therapy, which involves a partial mastectomy for removal of the primary tumor, usually followed by radiotherapy. The presence of tumor at or near the margin is strongly correlated with the risk of local tumor recurre...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.20865

    authors: Keller MD,Majumder SK,Kelley MC,Meszoely IM,Boulos FI,Olivares GM,Mahadevan-Jansen A

    更新日期:2010-01-01 00:00:00

  • Randomized, double-blind, phase III clinical study of a novel nanotechnological topical anesthetic formulation containing lidocaine 25 mg/g and prilocaine 25 mg/g (nanorap) in skin phototypes I-III patients with ablative fractional CO2 laser treatment ind

    abstract:BACKGROUND AND OBJECTIVES:Nanotechnology may increase the speed of penetration into the skin. This study evaluated the efficacy, safety, and pharmacokinetics of a novel topical anesthetic nanocapsule formulation (2 g) containing 2.5% lidocaine and 2.5% prilocaine (nanorap-test formulation) compared to placebo (control ...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章,随机对照试验

    doi:10.1002/lsm.23071

    authors: Gobbato C,Gobbato A,Magalhães TB,Mendes GD,Ilha JO,Moreno RA,Antunes NJ,De Nucci G

    更新日期:2019-09-01 00:00:00

  • Treatment of leg veins with the long pulse dye laser using variable pulse durations and energy fluences.

    abstract:BACKGROUND AND OBJECTIVES:Attempts at using the pulsed dye laser (PDL) operating at 585 nm wavelength and 0.45 milliseconds pulse duration to treat leg veins have been notably unsuccessful. The aim of this study is to evaluate the efficacy and complications of the 595 nm long PDL in the treatment of leg veins. STUDY D...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.20035

    authors: Kono T,Yamaki T,Erçöçen AR,Fujiwara O,Nozaki M

    更新日期:2004-01-01 00:00:00

  • Current laser dentistry.

    abstract::Current laser dentistry since our initial studies in 1964 is reviewed. Three areas are considered: routine dental office practice, tooth restoration, and oral surgery. For tooth restoration and oral surgery, CO2 and neodymium:YAG lasers are used and lasers are used in photodynamic therapy for oral cancer. Dental offic...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900060616

    authors: Goldman L,Goldman B,Van Lieu N

    更新日期:1987-01-01 00:00:00

  • Renal evaluation after CUSA plus Nd:YAG laser for partial nephrectomy.

    abstract::A technique for partial nephrectomy using a combination of an Ultrasonic Surgical Aspirator and a neodymium:YAG laser provided better hemostasis and decreased total operative time compared to standard methods. Delayed hemorrhage was not seen, and thermal damage to the remaining renal parenchyma was minimal. ...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900060210

    authors: Landau ST,Wood TW,Melzer RB,Lee RG,Smith JA Jr

    更新日期:1986-01-01 00:00:00

  • Treatment of infantile hemangiomas with the 595-nm pulsed dye laser using different pulse widths in an Asian population.

    abstract:INTRODUCTION:The pulsed dye laser (PDL) using varying fluences and pulse durations have been used to treat hemangiomas. This study aims to examine the efficacy and safety of the 595-nm PDL for the treatment of infantile hemangiomas using short (1.5-3 milliseconds) versus long (10 milliseconds) pulse durations and high ...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.21159

    authors: Tay YK,Tan SK

    更新日期:2012-02-01 00:00:00

  • Spectroscopic characterization of cardiovascular tissue.

    abstract::We present results of a series of laser spectroscopic measurements on in vitro samples of cardiovascular tissue. These include laser Raman scattering, Fourier transform infrared, plasma emission and fluorescence, and electron paramagnetic resonance spectroscopy. The results of these spectroscopic measurements are disc...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章,评审

    doi:10.1002/lsm.1900080110

    authors: Clarke RH,Isner JM,Gauthier T,Nakagawa K,Cerio F,Hanlon E,Gaffney E,Rouse E,DeJesus S

    更新日期:1988-01-01 00:00:00

  • Surface layer-preserving photodynamic therapy (SPPDT) in a subcutaneous mouse model of lung cancer.

    abstract:BACKGROUND AND OBJECTIVES:Photodynamic therapy (PDT) may be a less invasive treatment for lung cancer. Our newly developed surface layer-preserving PDT (SPPDT) technique enables us to irradiate deep tumor while preserving the overlying tissue. The aim of this basic study was to verify that the SPPDT technique might be ...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.22046

    authors: Kawakubo M,Eguchi K,Arai T,Kobayashi K,Hamblin MR

    更新日期:2012-08-01 00:00:00

  • Laser-assisted removal of a foreign body impacted in the esophagus.

    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

    authors: Lam YH,Ng EK,Chung SC,Li AK

    更新日期:1997-01-01 00:00:00

  • Laser thermal angioplasty probe ("hot tip") temperature: effects of flow.

    abstract::The temperature developed by the laser thermal ("hot tip") probe during arterial recanalisation is primarily dependent on the rate of energy delivery and the rate of dissipation to the surrounding medium. While higher probe tip temperatures enhance the efficacy of atheroma ablation, so too is the incidence of adverse ...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900100204

    authors: Rosenthal E,Foussas S,Montarello JK,Boyd EG,Curry PV

    更新日期:1990-01-01 00:00:00

  • Diode laser assisted minimal invasive sphenoidotomy for endoscopic transphenoidal pituitary surgery: our technique and results.

    abstract:BACKGROUND AND OBJECTIVE:During endoscopic sinus surgery (ESS), intra-operative bleeding can significantly compromise visualization of the surgical field. The diode laser that provides good hemostatic and vaporization effects and excellent photocoagulation has been successfully applied in endoscopic surgery with severa...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.22340

    authors: Lee JC,Lai WS,Ju DT,Chu YH,Yang JM

    更新日期:2015-03-01 00:00:00

  • Injuries as an adverse reaction to clinically used laser devices.

    abstract::Since the first use of lasers in ophthalmology in the early 1960s, applications for the medical laser have been found in many medical specialties. Despite their increasing usefulness, lasers have been reported to induce injuries. Few studies have tried to quantify the number of injuries caused by the clinical use of l...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900070603

    authors: Rodriguez JG,Sattin RW

    更新日期:1987-01-01 00:00:00

  • Effects of Low-Level Laser Irradiation in a Mouse Model of Allergic Rhinitis.

    abstract:BACKGROUND AND OBJECTIVES:To evaluate the antiallergic effect of low-level laser irradiation (LLLI) at 650 nm in a mouse model of allergic rhinitis (AR), and to examine the underlying mechanisms. STUDY DESIGN/MATERIALS AND METHODS:BALB/c mice were sensitized with ovalbumin (OVA) and alum and challenged intranasally wi...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.23141

    authors: Bae JS,Kim SH,Kim JH,Kim EH,Lyu L,Chung PS,Mo JH

    更新日期:2020-04-01 00:00:00