Effect of Initiators on Thermal Changes in Soft Tissues Using a Diode Laser

2018 ◽  
Vol 36 (7) ◽  
pp. 386-390 ◽  
Author(s):  
Georgios E. Romanos ◽  
Danielle Sacks ◽  
Nicholas Montanaro ◽  
Rafael Delgado-Ruiz ◽  
Jose Luis Calvo-Guirado ◽  
...  
Keyword(s):  
Diode Laser ◽  
Soft Tissues ◽  
Thermal Changes

810nm, 980nm, 1470nm and 1950nm diode laser comparison: a preliminary “ex vivo” study on oral soft tissues

2015 ◽  
Author(s):  
Carlo Fornaini ◽  
Elisabetta Merigo ◽  
Michele Sozzi ◽  
Stefano Selleri ◽  
Paolo Vescovi ◽  
...  
Keyword(s):  
Diode Laser ◽  
Soft Tissues ◽  
Ex Vivo ◽  
Ex Vivo Study

scholarly journals Comparison of A 1940 nm Thulium-Doped Fiber Laser and A 1470 nm Diode Laser for Cutting Efficacy and Hemostasis in A Pig Model of Spleen Surgery

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1167
Author(s):  
Bogusława Żywicka ◽  
Zbigniew Rybak ◽  
Maciej Janeczek ◽  
Albert Czerski ◽  
Jolanta Bujok ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Diode Laser ◽  
Thermal Damage ◽  
Giant Cells ◽  
Pig Model ◽  
Delayed Bleeding ◽  
Thermal Changes ◽  
Thermal Tissue Damage ◽  
Cutting Efficacy ◽  
Laser Devices

Partial and total splenectomies are associated with a high risk of substantial blood loss. Lasers operating at wavelengths strongly absorbed by water have the potential to improve hemostasis and cut while providing a narrow zone of thermal damage. The aim of this study is to compare a thulium-doped fiber laser (TDFL) emitting a wavelength of 1940 nm and a diode laser (DL) operating at 1470 nm for spleen surgery in a pig model. A partial splenectomy and spleen incisions were made in 12 animals using the two laser devices. The hemostasis was evaluated visually during surgeries. Post-mortem and histopathological evaluations were done on days 0, 7, and 14 following surgery. Neither TDFL nor DL caused bleeding on day 0 or delayed bleeding. On day 14, pale streaks at the site of incision were slightly wider after cutting with DL than with TDFL. Histological analysis revealed a carbonized zone with exudation and a deeper zone of thermal tissue damage on day 0. The width of the thermal changes was 655.26 ± 107.70 μm for TDFL and 1413.37 ± 111.85 μm for DL. On day 7, a proliferation of fibroblasts and splenocytes was visible, as well as a formation of multinucleated giant cells adjacent to the residues of carbonization. The zone of thermal damage was broader for DL (1157.5 ± 262.77 μm) than for TDFL (682.22 ± 116.58 μm). On day 14, cutting sites were filled with connective and granulation tissues with the residues of carbonization. The zone of thermal damage was narrower for TDFL (761.65 ± 34.3 μm) than for DL (1609.82 ± 202.22 μm). Thus, both lasers are efficient in spleen surgery, providing good hemostasis. However, TDFL produces a narrower zone of thermal damage, which suggests its better efficiency for spleen surgery, especially when performing more precise procedures.

scholarly journals Thermal Changes in the Hard Dental Tissue at Diode Laser Root Canal Treatment

2014 ◽  
Vol 41 (2) ◽  
pp. 31-35
Author(s):  
Ts. Uzunov ◽  
R. Grozdanova ◽  
E. Popova ◽  
T. Uzunov
Keyword(s):  
Laser Treatment ◽  
Diode Laser ◽  
Root Canal ◽  
In Vitro Study ◽  
Laser Coagulation ◽  
Dental Tissue ◽  
Dental Tissues ◽  
Thermal Changes ◽  
Hard Dental Tissues

Summary The laser coagulation at the apical part of the root canal after vital extirpation is a proper method of preventing complications such as pain, bleeding, remaining vital pulp. The aim of the present survey is to register the thermal changes that occur on the tooth surfaces during laser treatment of the root canal after vital extirpation. An in vitro study of 30 extracted teeth has been conducted. The teeth have been prepared with ProTaper nickel-titanium machine tools and wiped dry. During the course of laser treatment of root canals with a diode laser DenLase temperatures, changes of the surface of the hard dental tissues have been recorded with infrared camera FLIR T330. The captured thermal images have been processed with software product Flir Reporter Pro 9. In conclusion, temperature changes in hard dental tissues at diode laser treatment of the root canal are biocompatible.

scholarly journals The application of diode laser in the treatment of oral soft tissues lesions. A literature review

2017 ◽  
pp. 0-0 ◽  
Author(s):  
D Ortega-Concepcion ◽  
JA Cano-Duran ◽  
JF Peña-Cardelles ◽  
VM Paredes-Rodriguez ◽  
J Gonzalez-Serrano ◽  
...  
Keyword(s):  
Literature Review ◽  
Diode Laser ◽  
Soft Tissues

scholarly journals A comparative analysis of the application of piezoelectric surgery and mechanical osteoperforation techniques in modeling an orbital decompression

2018 ◽  
Vol 11 (1) ◽  
pp. 10-18 ◽  
Author(s):  
Konstantin A Konovalov ◽  
Dmitriy V Davydov ◽  
Vitaliy Yu Roshchin
Keyword(s):  
Comparative Analysis ◽  
Diode Laser ◽  
Soft Tissues ◽  
Orbital Decompression ◽  
Surgical Equipment ◽  
Ultrasonic Scalpel ◽  
Advantages And Disadvantages ◽  
Bone Window ◽  
Piezoelectric Surgery ◽  
Wide Range

Currently a wide range of instruments for surgical procedures on the bony structures of the orbits is offered. Each of them has its advantages and disadvantages. Cutter causes less injury, in comparison with a chisel or an ultrasonic saw [15]. In using a drill during surgery there was an increase in temperature of bone edge of the opening above acceptable values [17]. The use of low frequency ultrasonic tools allows you to create holes in the bones of any desired size and shape with smooth edges [5, 11, 16, 20]. The disadvantages of this method include the heating of tool’s tip up to 140° during prolonged continuous action [6]. Thus, techniques using tools for formation of the bone window require further study and improvement. Aim: to compare surgical equipment for bone window formation in modeling an orbital decompression. Materials and methods. In an experimental study in vivo, 12 surgical interventions on the scapula on both sides were performed in 6 Chinchilla breed rabbits. On the right side, the formation of a bone window was carried out by the ultrasonic bone scalpel MISONIX, on the left side - by a drill. Results. It was found that during first 7-21 days there was more pronounced inflammation of soft tissues on the left side. At the same time, delayed proliferation and maturation of fibrous connective tissue was observed in comparison to the opposite side. Bone tissue inflammation and subsequent regeneration took place without significant differences on both sides. The experiment showed that the use of ultrasonic scalpel in flat bones creates less inflammation of surrounding tissues and the bone itself as compared to a diode laser. A.V. Kravchenko (2006) reports that, after exposure to a diode laser in an acute experiment there was a scalloped edge with an area of photocarbonization (charring) on the 7th and the 21st day; while the use of an ultrasonic scalpel did not create any signs of infiltrative inflammation, later on a nonspecific inflammation developed. Conclusion. Ultrasonic scalpel has a number of advantages when performing osteoperforation, such as time-saving during surgical procedure, control of the osteotomy process, less trauma to surrounding tissues during action and less pronounced inflammatory response of the wound during early postoperative period. (For citation: Konovalov KA, Davydov DV, Roshchin VY. A comparative analysis of the application of piezoelectric surgery and mechanical osteoperforation techniques in modeling an orbital decompression. Ophthalmology Journal. 2018;11(1):10-18. doi: 10.17816/OV11110-18).

Comparison of violet diode laser with CO 2 laser in surgical performance of soft tissues

2007 ◽  
Author(s):  
H. Hatayama ◽  
J. Kato ◽  
A. Inoue ◽  
G. Akashi ◽  
Y. Hirai
Keyword(s):  
Diode Laser ◽  
Soft Tissues ◽  
Surgical Performance

scholarly journals In vivo clinical and histological thermal effect of a 445 nm diode laser on oral soft tissues during a biopsy

2021 ◽  
Author(s):  
Gaspare Palaia ◽  
Leonardo D’Alessandro ◽  
Daniele Pergolini ◽  
Raffaella Carletti ◽  
Cira R. T. Di Gioia ◽  
...  
Keyword(s):  
Thermal Effect ◽  
Diode Laser ◽  
Soft Tissues

scholarly journals Histological Effects of an Innovative 445 Nm Blue Laser During Oral Soft Tissue Biopsy

2020 ◽  
Vol 17 (8) ◽  
pp. 2651
Author(s):  
Gaspare Palaia ◽  
Daniele Pergolini ◽  
Leonardo D’Alessandro ◽  
Raffaella Carletti ◽  
Alessandro Del Vecchio ◽  
...  
Keyword(s):  
Diode Laser ◽  
Soft Tissues ◽  
Blue Laser ◽  
Histological Evaluation ◽  
Average Value ◽  
Clinical Complications ◽  
Tissue Alteration ◽  
Laser Devices ◽  
Oral Soft Tissue

Continuously evolving laser devices can be used in various fields; they are an alternative to the traditional cold blade surgery to perform biopsies of oral soft tissues. The aspect focused on in this paper is the possibility to use the 445 nm diode laser (Eltech K-Laser srl, Treviso, Italy) in complete safety, by evaluating its thermal effects during microscopy. A histological evaluation of the alteration of the peri-incisional edges on 10 samples was realized. All excisional biopsies were related to clinically unsuspected lesions and performed by the same expert operator. The surgical procedure was performed with the same laser parameters and the same pathologist evaluated the thermal effect on the samples. An average value of the detected tissue alteration was calculated; the average damage of the epithelium was 650.93 μm, while in the connective tissue it was 468.07 μm. In all the cases a clear diagnosis was possible, and no clinical complications were observed; so, the 445 nm diode laser proved to be a device that can be safely used for biopsies of clinically unsuspicious lesions. Due to the small number of cases, this in vivo preliminary experience needs to be extended.

scholarly journals MICROBIOLOGICAL ASPECTS OF APPLYING CLINICAL DIAGNOSTIC COMPLEX OF ORTHODONTIC METHODS FOR RESTORING DESTROYED CORONAL PART OF TEETH

2021 ◽  
Vol 21 (2) ◽  
pp. 106-111
Author(s):  
I.O. Kinash
Keyword(s):  
Diode Laser ◽  
Soft Tissues ◽  
Laser Coagulation ◽  
Quantitative Composition ◽  
Periodontal Tissues ◽  
Root Area ◽  
Anterior Teeth ◽  
Clinical Diagnostic ◽  
Aesthetic Appearance ◽  
Diagnostic Complex

Improving the quality of restoration of the destroyed coronal part of the teeth by orthopaedic methods has led to significant scientific and clinical interest and has been discussed in numerous reports, but the issues on reparative regeneration and restoration of the gingival margin relief in the area of ​​the anterior group of teeth after reconstructive orthodontic measures in the case of restoration of destroyed tooth crowns and deep subgingival carious destruction have not been sufficiently studied yet. The purpose of this study was to investigate the microbiological peculiarities of applying a clinical diagnostic complex of manipulations designed to restore anterior teeth with cast posts to provide the grounds for long-term favourable outcomes of further orthopaedic treatment in order to obtain aesthetic appearance, taking into account the state of the surrounding soft tissues. To carry out high-quality preparation of periodontal tissues around the abutment tooth, patients underwent gingivectomy using a scalpel with a disposable blade, diode laser electrocoagulation and coagulation. The effectiveness of each method of the preparation of the marginal gingiva was evaluated by the findings of clinical and microbiological studies. We have found out all three tested methods of forming a new gum relief in the root area of ​​a preserved tooth can significantly improve the qualitative and quantitative composition of the microflora in the stump area. A significant decrease in the frequency of biotope colonization by pathogenic and transient microorganisms and the improvement of the species composition in the local oral microbiocenosis can be achieved by cutting the hypertrophied epithelial edge of the cervical area with a microsurgical scalpel and using laser coagulation. Clinical and microbiological studies have confirmed the effectiveness of the clinical diagnostic complex of techniques for preparing the marginal gum around the root of the tooth, which is planned for orthodontic treatment with a post and an inlay. The use of a diode laser has been found to show the highest efficiency compared to other presented methods. All of the above techniques can be used in dental practice as methods of choice.

Nd:YAG and Diode Laser in the Surgical Management of Soft Tissues Related to Orthodontic Treatment

2007 ◽  
Vol 25 (5) ◽  
pp. 381-392 ◽  
Author(s):  
C. Fornaini ◽  
J.P. Rocca ◽  
M.F. Bertrand ◽  
E. Merigo ◽  
S. Nammour ◽  
...  
Keyword(s):  
Diode Laser ◽  
Surgical Management ◽  
Orthodontic Treatment ◽  
Soft Tissues
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