Journal of Research in Dental and Maxillofacial Sciences
J Res Dent Maxillofac Sci
Medical Sciences
http://jrdms.dentaliau.ac.ir
1
admin
2383-2754
10.61186/jrdms
en
jalali
1399
2
1
gregorian
2020
5
1
5
2
online
1
fulltext
en
Comparison of Soft Tissue Thermal Changes Induced by Three Types of Diode Lasers at 810, 940, and 980nm Wavelengths
Oral medicine
Oral medicine
Original article
Original article
<div style="text-align: justify;"><strong>Background and Aim:</strong> Diode laser is a great choice for soft tissue surgery. The diode laser is partially absorbed by hard dental tissues, making it safe for soft tissue surgery. This study aimed to compare the tissue thermal changes induced by three types of diode lasers at 810, 940, and 980nm wavelengths.<strong><span dir="RTL"></span></strong><br>
<strong>Materials and Methods:</strong> In this in-vitro experimental study, using a diode laser device (continuous mode with a 400μm fiber tip) at each of the 810, 940, and 980nm wavelengths and powers of 1, 2, and 3W in contact mode, incisions with the length of 2cm were made on pieces of meat over a period of 10 seconds. The primary and secondary temperatures were measured using a thermocouple. Data were analyzed using two-way analysis of variance (ANOVA).<br>
<strong>Results: </strong>Tissue temperature changes induced by diode laser at 810nm/3W were significantly greater than that of 2W power. These changes were higher with 2W of power compared to 1W (P<0.05). Temperature changes induced by diode laser at 940nm/2 and 3W were significantly greater than that of 1W power (P<0.05). Temperature changes induced by diode laser at 980nm/3W were significantly greater than that of 2W power. Tissue temperature changes were higher with 2W of power compared to 1W (P<0.05).<br>
<strong>Conclusion:</strong> Diode laser (continuous mode with a 400µm fiber tip) at 3W of power and 980nm wavelength caused the highest rate of thermal changes. The 810nm diode laser with the power of 1W caused the slightest heat changes in the soft tissue.<br>
</div>
Diode Laser, Temperature, Soft Tissue Injuries
7
13
http://jrdms.dentaliau.ac.ir/browse.php?a_code=A-10-25-2&slc_lang=en&sid=1
S
Shahbazi
10031947532846008799
10031947532846008799
No
Dentist
N
Moezzi ghadim
10031947532846008800
10031947532846008800
No
Assistant professor, Oral Medicine Dept, Faculty of Dentistry,Tehran Medical Sciences
AR
Mirzaei
10031947532846008801
10031947532846008801
No
Educational Trainer at International Academy of RWTH Aachen University, Aachen, Germany
A
Azizi
drarashazizi@yahoo.com
10031947532846008802
10031947532846008802
Yes
Professor,Oral Medicine Dept, Faculty of Dentistry,Tehran Medical Sciences , Islamic Azad University , Tehran, Iran.