Peripheral thermal and mechanical damage to dentin with microsecond and sub-microsecond 9.6 microm, 2.79 microm, and 0.355 microm laser pulses

Lasers in Surgery and Medicine
Alfredo Dela RosaDaniel Fried

Abstract

It is desirable to minimize peripheral thermal damage during laser irradiation, since thermal damage to collagen and mineral compromises the bond strength to restorative materials in dentin and inhibits healing and osteointegration in bone. There were two primary objectives of this study. The first objective was to measure the degree of thermal damage peripheral to incisions in dentin produced with lasers resonant to the specific absorption bands of water, collagen, and hydroxyapatite with varying pulse duration using polarized-light microscopy (PLM). The second objective was to use synchrotron radiation infrared spectromicroscopy (SR-FTIR) to identify the specific chemical nature of the optical changes observed under PLM in the respective zones of thermal damage peripheral to the laser incisions. Precise incisions were produced in 3 x 3 mm2 blocks of human dentin using CO2 (9.6 microm), Er:YSGG (2.79 microm), and Nd:YAG (355 nm) lasers with and without a computer controlled water-spray. Optical coherence tomography (OCT) was used to obtain optical cross-sections of each incision to determine the rate of ablation. The peripheral thermal damage zone around each incision was analyzed using PLM and SR-FTIR. Thermally induced chemi...Continue Reading

References

Jan 1, 1992·Lasers in Surgery and Medicine·R Hibst
Jan 1, 1992·Lasers in Surgery and Medicine·Z Z LiW P Van de Merwe
Jan 1, 1989·Lasers in Surgery and Medicine·J T Walsh, T F Deutsch
Jan 1, 1989·Lasers in Surgery and Medicine·M J van Gemert, A J Welch
Jan 1, 1986·Lasers in Surgery and Medicine·J Melcer
Jan 1, 1988·Lasers in Surgery and Medicine·J S NelsonM W Berns
Jan 1, 1988·Lasers in Surgery and Medicine·J T WalshT F Deutsch
Dec 1, 1984·The British Journal of Oral & Maxillofacial Surgery·S E Fisher, J W Frame
Aug 24, 1999·Lasers in Surgery and Medicine·M L WalterU H Joosten
Dec 22, 1999·Lasers in Surgery and Medicine·G M PeavyV Venugopalan
Aug 21, 2003·Lasers in Medical Science·M FrentzenP Hering

❮ Previous
Next ❯

Citations

May 25, 2005·Photomedicine and Laser Surgery
Jun 16, 2005·Photomedicine and Laser Surgery
Sep 8, 2005·Photomedicine and Laser Surgery
Nov 3, 2007·Photomedicine and Laser Surgery·Marcella Esteves-OliveiraNorbert Gutknecht
Feb 6, 2008·Photomedicine and Laser Surgery·Iris Slutzky-GoldbergJoshua Moshonov
Mar 11, 2016·Analytical Cellular Pathology (Amsterdam)·Rene FranzenNorbert Gutknecht
Jun 11, 2008·Optics Express·Cynthia L Darling, Daniel Fried
Dec 9, 2008·Dental Materials : Official Publication of the Academy of Dental Materials·Michal StaninecDaniel Fried
Jul 10, 2009·Lasers in Surgery and Medicine·Ali ObeidiFiroz Rahemtulla
Apr 7, 2009·Lasers in Surgery and Medicine·Michal StaninecDaniel Fried
Jan 14, 2012·Lasers in Surgery and Medicine·Ben Y C LeungVictor X D Yang
Nov 28, 2012·Lasers in Surgery and Medicine·David D LoDerrick C Wan
Mar 30, 2016·Lasers in Surgery and Medicine·Taichen LinYuichi Izumi
Feb 7, 2015·Biomedical Optics Express·Luke J MortensenCharles P Lin
Dec 24, 2010·Archives of Oral Biology·M Esteves-OliveiraC P Eduardo
Jun 8, 2017·Photomedicine and Laser Surgery·Fusong YuanPeijun Lyu
May 17, 2018·Photomedicine and Laser Surgery·Claudia StrefezzaDenise Maria Zezell
Apr 9, 2016·Lasers in Medical Science·Xianzeng ZhangQing Ye
May 3, 2007·Physics in Medicine and Biology·A Vila VerdeA M Stoneham
Mar 14, 2009·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Saman K ManeshDaniel Fried
Mar 5, 2019·Lasers in Medical Science·Ana C SilvaNorbert Gutknecht
Oct 16, 2018·Biomedical Optics Express·William A FriedDaniel Fried

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.