BACKGROUND: Dental lasers have a wide variety of uses in the field of dentistry. Most lasers claim that they can aid in hemostasis during oral and periodontal surgery. To date, there are no studies that compare different lasers' ability to congeal blood. AIMS: The aim of the study was to see if there was a difference in dental lasers' ability to congeal pooled blood in an extraction model. METHODS: Whole blood was collected from donors and aliquoted into microcentrifuge tubes. Different dental lasers ( 810 nm diode, 940 nm diode, 2790 nm Er,Cr:YSGG, 1064 nm Nd:YAG, 2940 nm Er:YAG and 10,600 nm CO2 ) were applied to the whole blood for 0s, 15s, 30s and 45s. The sample tubes centrifuged and the supernatant color was scored using a novel scale to assess the degree of congealing. Additional samples of blood were tested for time needed for maximum congealing and temperature change. RESULTS: Analysis of supernatant colors showed that there were significant differences in the degrees of congealing between the 810 nm diode, 940 nm diode, 2790 nm Er,Cr:YSGG when compared to the 1064 Nd:YAG, 2940 nm Er:YAG and 10,600 nm CO2 lasers, but not within those groupings. Additionally, the 1064 Nd:YAG increased the temperature of the blood samples more than the other lasers and had a shorter time for maximum congealing.
CONCLUSION: There was difference in dental lasers' ability to congeal pooled blood in an in-vitro extraction model. Nd:YAG, Er:YAG and CO2 lasers were able to achieve a greater degree of congealing at an earlier time point.
|Commitee:||Font, Kerri, Powell, Charles, Tippets, Jay|
|School:||University of Colorado at Denver|
|Department:||Health Information Technology|
|School Location:||United States -- Colorado|
|Source:||MAI 58/06M(E), Masters Abstracts International|
|Keywords:||Blood, Coagulation, Extraction, Healing, Lasers, Periodontics|
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