Histological Evaluation of a Novel Pulpotomy Technique with Low-level Laser Therapy and Its Comparison with Formocresol: A Randomized Animal Trial

2016 ◽  
Vol 6 (1) ◽  
pp. 1-5
Author(s):  
AR Prabhakar ◽  
Amitha M Shagale

ABSTRACT Aim Low-level laser therapy (LLLT) has been increasingly used over the past few decades in both medicine and dentistry. It has been suggested that LLLT may be helpful in pulpal wound healing following pulp exposure. The purpose of this study was to evaluate the histological changes in dental pulp tissue after a pulpotomy procedure using a low-level diode laser in comparison with the gold standard formocresol. Materials and methods In this experimental split-mouth study, 20 teeth were randomly selected from five dogs. The animals were anesthetized and pulpotomized using a low-level diode laser (660 nm, 36 mW) and formocresol respectively. One week later, the pulpotomized teeth were extracted and subjected to histological evaluation. Histological changes seen in the pulp tissues of all the interventional groups were subjected to statistical analysis using Mann–Whitney U test for pairwise comparison; p < 0.05 was considered as statistically significant and p > 0.05 nonsignificant. Results On histologic evaluation, least amount of inflammation and maximal healing was evident in the LLLT group. On the contrary, the formocresol group showed severe inflammation. Conclusion Low-level laser therapy promises to be a safe, minimally invasive, yet maximally effective modality for pulpotomy. How to cite this article Prabhakar AR, Shagale AM, Yavagal C. Histological Evaluation of a Novel Pulpotomy Technique with Low-level Laser Therapy and Its Comparison with Formocresol: A Randomized Animal Trial. Int J Laser Dent 2016;6(1):1-5.

2006 ◽  
Vol 21 (4) ◽  
pp. 258-262 ◽  
Author(s):  
Rodrigo Paschoal Prado ◽  
Richard Eloin Liebano ◽  
Bernardo Hochman ◽  
Carlos Eduardo Pinfildi ◽  
Lydia Masako Ferreira

PURPOSE: To develop an experimental model to be used in the study of low level Laser therapy on viability of random skin flap in rats. METHODS: The sample was 24 Wistar-EPM rats. The random skin flap measured 10 x 4 cm and a plastic sheet was interposed between the flap and donor site. Group 1 (control) underwent sham irradiation with diode laser (830 nm). Group 2 was submitted to laser irradiation with diode laser (830 nm). The animals were submitted to Laser therapy with 36 J/cm² energy density (72 seconds) immediately after the surgery and on the four subsequent days. The probe was usually held in contact with the skin flap surface on a point at 2.5 cm cranial from the flap base. On the seventh postoperative day, the percentage of necrotic area was measured and calculated. RESULTS: Group 1 reached an average necrotic area of 48.86%, Group 2 - 23.14%. After the statistic analysis, compared with the control group, Group 2 showed a statistically significant increase in survival area (p<0.001). CONCLUSION: The experimental model proved to be reliable to be used in the study of effects of low level laser therapy in random skin flap in rats.


2015 ◽  
Vol 3 (4) ◽  
pp. 717-721 ◽  
Author(s):  
Hanaa M. Elshenawy ◽  
Amany Mohy Eldin ◽  
Mohamed Adel Abdelmonem

BACKGROUND: Oral lichen planus (OLP) is a chronic inflammatory disease of the oral mucosa of uncertain etiology.AIM: To evaluate the effect of using low level laser therapy (LLLT (970 nm Siro laser Advance) for the treatment of symptomatic (OLP).SUBJECTS AND METHODS: The present study was conducted on ten patients suffering from persistent oral lichen planus (OLP).Patients were treated with diode laser (970nm) for the symptomatic relief of pain and burning sensation. The patients were assessed before, during and after the completion of the laser treatment which was done twice weekly for two successive months with maximum of ten sessions. The assessment was performed using visual analogue scale (VAS) and clinical investigation for each patient.RESULTS: Detailed significant reduction in lesion size and showed complete remission of burning sensation and pain. No reported complications or therapy side effects were observed in any of the treated patients.CONCLUSION: Diode laser therapy seems to be an effective adjunctive treatment modality for relieving pain and clinical symptoms of OLP.


2018 ◽  
Vol 32 ◽  
Author(s):  
Hakan Arslan ◽  
Serhat Köseoğlu ◽  
Ezgi Doğanay Yildiz ◽  
Taner Arabaci ◽  
Levent Savran ◽  
...  

Materials ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2187 ◽  
Author(s):  
Gaetano Isola ◽  
Marco Matarese ◽  
Francesco Briguglio ◽  
Vincenzo Grassia ◽  
Giacomo Picciolo ◽  
...  

The present study evaluated the effects of low-level laser therapy (LLLT) by means of a diode laser in accelerating orthodontic tooth movement (OTM). After extraction of the first upper premolars for orthodontic purpose, 82 maxillary canines which needed distalization were analyzed in 41 enrolled patients (21 males, 20 females, mean age 13.4 ± 2.1 years). On all experimental sites, an orthodontic force of 50/N was applied by a nickel-titanium (NiTi) closed coil spring (G&H, Franklin, IN, USA) in order to obtain the space closure. Using a split mouth randomized design, the test side was treated using a diode laser (Wiser Laser Doctor Smile, Brendola, Italy) operating at 810 nm wavelength in continuous wave mode at both the buccal and palatal side on three points/side (distal, medial and mesial) (1 W output power, continuous wave of 66.7 J/cm2, energy density of 8 J) at baseline and at 3, 7, and 14 days and every 15 days until the space closed. On the control side, the opposite selected canine was treated only using orthodontic traction. The primary outcome chosen was the overall time needed to complete the levelling and closing space, measured on a study cast. The secondary outcome chosen was the evaluation of pain levels related to tooth traction, using a Visual Analogue Scale (VAS), recorded at 3, 7, and 14 days after treatments. The mean space closures of the maxillary canines were comparable between groups [Test, 4.56 mm (95% CI 3.9–4.8); Control, 4.49 mm (95% CI 3.8–4.7), p = 0.456]. The laser group yielded less mean time [84.35 ± 12.34 days (95% CI 79.3–86)] to accomplish space closure compared to the control group [97.49 ± 11.44 days (91.7–102.3)] (p < 0.001). The test side showed a significant reduction in the average range of dental pain at 3 [Test, 5.41 (95% CI 5.1–5.6); Control, 7.23 (95% CI 6.9–7.6), p < 0.001], 7 [Test, 4.12 (95% CI 3.8–4.7); Control, 5.79 (95% CI 5.4–5.8), p < 0.001], and at 14 days [Test, 2.31 (95% CI 1.8–2.3); Control, 3.84 (95% CI 3.3–4.2), p < 0.001] after treatment (p < 0.001). This study demonstrates that the use of LLLT therapy was effective in accelerating tooth movement and reducing pain levels related to OTM.


2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Simel Ayyildiz ◽  
Faruk Emir ◽  
Cem Sahin

Light amplification by stimulated emission of radiation (laser) is one of the most recent treatment modalities in dentistry. Low-level laser therapy (LLLT) is suggested to have biostimulating and analgesic effects through direct irradiation without causing thermal response. There are few studies that have investigated the efficacy of laser therapy in temporomandibular disorders (TMD), especially in reduced mouth opening. The case report here evaluates performance of LLLT with a diode laser for temporomandibular clicking and postoperative findings were evaluated in two cases of TMD patients. First patient had a history of limited mouth opening and pain in temporomandibular joint (TMJ) region since nine months. Second patient’s main complaint was his restricted mouth opening, which was progressed in one year. LLLT was performed with a 685 nm red probed diode laser that has an energy density of 6.2 J/cm2, three times a week for one month, and application time was 30 seconds (685 nm, 25 mW, 30 s, 0.02 Hz, and 6.2 J/cm2) (BTL-2000, Portative Laser Therapy Device). The treatment protocol was decided according to the literature. One year later patients were evaluated and there were no changes. This application suggested that LLLT is an appropriate treatment for TMD related pain and limited mouth opening and should be considered as an alternative to other methods.


2017 ◽  
Vol 8 (3) ◽  
pp. 155-159 ◽  
Author(s):  
Abdul Ahad ◽  
Shruti Tandon ◽  
Arundeep Kaur Lamba ◽  
Farrukh Faraz ◽  
Parimal Anand ◽  
...  

2011 ◽  
Vol 5 (2) ◽  
pp. 168-184 ◽  
Author(s):  
Vijendra Prabhu ◽  
Satish B. S. Rao ◽  
Subhash Chandra ◽  
Pramod Kumar ◽  
Lakshmi Rao ◽  
...  

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