scholarly journals COMPARATIVE EVALUATION OF EFFECT OF IRRADIATION USING LOW- LEVEL LASER THERAPY WITH TWO DIFFERENT WAVELENGTHS ON STABILITY OF DENTAL IMPLANTS

Author(s):  
Lakshmi Keerthi Kandavalli ◽  
Aravind Kumar Pavuluri ◽  
Musalaiah S.V.V. S

Aim: This study aimed to compare the effect of low-level laser therapy irradiation with two different wavelengths after osteotomy site preparation on the stability of dental implants. Materials and Methods: The current study is a double-masked, randomized clinical trial. A total of seven patients of age 25 to 55 years were assigned randomly into two groups. Group I: Osteotomy site irradiated with low-level laser therapy of wavelength 940nm. GROUP II: Osteotomy site irradiated with low-level laser therapy of wavelength 660nm. Implant stability was measured after implant placement using the Penguin RFA device. Bone formation was assessed with Cone Beam Computed Tomography. Results: The current trial results showed that low-level laser therapy aided in bone formation around the implants, but there is no significant difference between the two different wavelengths. Conclusion: Implant stability increased in both groups, but no difference is observed among the groups. Hounsfield units indicating bone formation improved in both the groups with no pronounced difference between the groups. All 14 implants were stable, thus indicating that low-level laser therapy aids bone formation, but the wavelength difference had no significant impact. Keywords: Low level laser therapy, Implant Stability, Resonance frequency analysis

Author(s):  
VARSHA PALLED ◽  
DR. JITENDRA RAO ◽  
DR. RAGHUWAR DAYAL SINGH ◽  
DR. SHUCHI TRIPATHI ◽  
DR. KALPANA SINGH ◽  
...  

The purpose of this study was to evaluate whether Low-Level Laser Therapy (LLLT) improves the healing of the implant surgical site with clinical and biochemical parameters.Thirty patients with an edentulous space spanning a single tooth were selected. The patients were randomly allocated to two groups - the control group and the test group. The test group received laser energy at a power of 2J/cm 2 with a total of 4-6J energy over each implant. Clinical parameters (Implant Stability Quotient, probing index, modified sulcus bleeding index)and osteoprotegerin (OPG) were assessed at baseline and follow-up intervals (2 weeks, 6 weeks, and 3 months).The test group showed significantly higher implant stability quotient compared to thecontrol group at 2 weeks(57.93±3.95 and 35.67±3.08; p<0.01) and 3months(58.86±3.75 and 67.06±3.78; p<0.01). A significant rise in OPG levels of the test group(686.30±125.36pg/ml at baseline and 784.25±108.30pg/ml at 3months;p<0.01) was seen contrary to significant decline in the control group (839.50±249.08pg/ml at baseline,415.30±78.39pg/ml at 3months;p<0.01). Within the limitations of the study, the study suggests that the healing of peri-implant hard and soft tissues may be enhanced with the use of LLLT as an explicit modality during the post-operative period.


2020 ◽  
Vol 22 (3) ◽  
pp. 261-269
Author(s):  
Renan Pablo Bittencourt Lobato ◽  
Mateus de Azevedo Kinalski ◽  
Thiago Marchi Martins ◽  
Bernardo Antonio Agostini ◽  
Cesar Dalmolin Bergoli ◽  
...  

2020 ◽  
pp. 026921552098098
Author(s):  
Patrícia Pereira Alfredo ◽  
Jan Magnus Bjordal ◽  
Washington Steagall Junior ◽  
Amélia Pasqual Marques ◽  
Raquel Aparecida Casarotto

Objective: To investigate the effect of low-level laser therapy (LLLT) combined with exercise on shoulder pain and disability in patients with subacromial impingement syndrome (SIS). Design: Randomised controlled trial. Setting: Pontifical Catholic University. Subjects: We enrolled 120 subacromial impingement syndrome patients Intervention: Groups I ( n = 42), II ( n = 42) and III ( n = 36) were treated with Low-level laser therapy and exercise, exercise only and Low-level laser therapy only, respectively. Interventions were conducted three times a week for 8 weeks. Main outcome measures: The primary outcome was the change in shoulder pain and disability index (SPADI). Secondary outcomes included changes in the numeric pain rating scale and medication intake. Results: Average ages of patients in groups I, II and III were 51.9 ± 8.7 years, 56.0 ± 10.4 years and 54.2 ± 7.1 years, respectively. Pain scores at baseline ( P = 0.829), 2 months ( P = 0.057) and 3 months follow-ups ( p = 0.004) were 6.8 (4.7–7.7), 0.2 (0.0–0.5) and 0.3 (0.0–1.0) for group I; 6.6 (5.7–8.0), 0.5 (0.2–2.0) and 0.2 (0.0–3.3) for group II; and 6.5 (5.1–7.4), 2.4 (0.1–6.7) and 4.0 (2.0–5.0) for group III, respectively. SPADI scores at baseline ( P = 0.029), 2 months ( P < 0.001) and 3 months follow-ups ( P = 0.001) were 60.8 (37.7–70.8), 3.8 (0.0–10.8) and 2.3 (0.8–10.8) for group I; 61.5 (41.5–71.5), 9.2 (3.8–29.2) and 14.2 (1.5–38.0) for the group II; and 73.3 (59.2–80.8), 34.2 (16.9–54.6) and 33.1 (22.3–49.2) for the group III, respectively. Conclusion: Low-level laser therapy combined with exercises reduce pain intensity, improve shoulder function and reduces pain intensity and medication intake over 3 months. Clinical Trial Registration number: NCT 02725749


2015 ◽  
Vol 30 (5) ◽  
pp. 1599-1607 ◽  
Author(s):  
Priscilla Hakime Scalize ◽  
Luiz Gustavo de Sousa ◽  
Simone Cecílio Hallak Regalo ◽  
Marisa Semprini ◽  
Dimitrius Leonardo Pitol ◽  
...  

2015 ◽  
Vol 638 ◽  
pp. 151-154
Author(s):  
Gabriela Bereșescu ◽  
Monica Monea ◽  
Bianca Porca ◽  
Alina Cocan ◽  
Adriana Maria Monea

The aim of this study is to assess the histological efficiency of low level laser therapy (LLLT) with respect to the acceleration of bone regeneration after surgical treatment of intrabony defects. Twenty patients with intrabony defects, aged between 20-45, non-smokers, good health condition present at the time of the surgery, were randomly divided in two groups, control, ten parients, and test group, ten patients. Informed consent was obtained. Each patient presented at least one periodontal defect treated by bone allograft. The test group received postsurgical treatment with low lever laser therapy (LLLT). The equipment used was OsseoPulse AM300, at an intensity of 20mW/cm2, for 20 minutes per day, for 21 consecutive days. The control group received no treatment with LLLT. The bone formation was evaluated in both groups at baseline and 6 months postoperative by the means of tissue biopsy followed by a histological analysis. The histological study of the test samples at 6 months after regeneration showed bone formation without inflammatory cells and occasional nonviable bone consistent with regenerating bone. No evidence of the grafted material was present. The histological study suggests that in 6 months there was new bone formation in the defects treated with LLLT. Clinical data indicate the possibility of more rapid wound closure and subsequent healing in zones treated with LLLT as compared with control.


2014 ◽  
Vol 32 (6) ◽  
pp. 315-321 ◽  
Author(s):  
Farzad Fazilat ◽  
Mahdi Ghoreishian ◽  
Reza Fekrazad ◽  
Katayoun A. M. Kalhori ◽  
Sara Dehghan Khalili ◽  
...  

2018 ◽  
Vol 27 (6) ◽  
pp. 660-666 ◽  
Author(s):  
Renata Falchete do Prado ◽  
Milagros del Valle El Abras Ankha ◽  
Daiane Acácia Griti Bueno ◽  
Evelyn Luzia de Souza Santos ◽  
Ítalo Rigotti Pereira Tini ◽  
...  

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Mustafa Karakaya ◽  
Ahmet Emin Demirbaş

Abstract Purpose The primary aim of this study is to assess, in an animal model, whether biostimulation of osteoporotic bone with low-level laser therapy improves the osseointegration of dental implants. Material and methods Twenty-two female rabbits were randomly divided into two groups: sham-ovariectomy and bilateral-ovariectomy. Laser therapy was applied to the implants placed in the right tibial bones and was not applied to implants placed in the left tibial bones. The periotest device was used for the stability test. Periotest values were recorded after the implantation (T0) and when the animals were euthanized (T1). The removal torque test and micro-computed tomography examination were evaluated. Results As a result of removal torque, the mean of ovariectomy-laser group (56.1 ± 5.1 Ncm) was higher than sham-ovariectomy group (55.4 ± 18.5 Ncm) (p = 0.9). In periotest analysis, a significant difference was found between the values of T1 and T0 in all groups, except sham-ovariectomy group (p < 0.05); and the highest difference was found in the ovariectomy-laser group. Micro-CT examination demonstrated that ovariectomy-laser group showed an increase of implant–bone contact when compared with ovariectomy (p < 0.05). Conclusions The values obtained from biomechanical tests and micro-CT in the ovariectomy-laser group were significantly higher than the ovariectomy group and achieved the values in the healthy bone.


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