Evaluation of the Effect of Low Level Laser Therapy on Bone Height and Bone Density Around Dental Implants Using Two Radiographic Assessment Methods

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

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Effect of low-level laser therapy on osseointegration of titanium dental implants in ovariectomized rabbits: biomechanics and micro-CT analysis

International Journal of Implant Dentistry ◽

10.1186/s40729-020-00257-z ◽

2020 ◽

Vol 6 (1) ◽

Author(s):

Mustafa Karakaya ◽

Ahmet Emin Demirbaş

Keyword(s):

Laser Therapy ◽

Dental Implants ◽

Low Level Laser Therapy ◽

Micro Ct ◽

Removal Torque ◽

Low Level ◽

Low Level Laser ◽

Level Laser ◽

Significant Difference ◽

Laser Group

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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Effect of low level laser therapy on crestal bone levels around dental implants—A pilot study

Clinical Implant Dentistry and Related Research ◽

10.1111/cid.12957 ◽

2020 ◽

Vol 22 (6) ◽

pp. 739-746

Author(s):

Prachi Gulati ◽

Manoj Kumar ◽

Gaurav Issar ◽

Ankur Thakral

Keyword(s):

Pilot Study ◽

Laser Therapy ◽

Dental Implants ◽

Low Level Laser Therapy ◽

Low Level ◽

Low Level Laser ◽

Level Laser

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Can Low Level Laser Therapy Benefit Bone Regeneration in Localized Maxillary Cystic Defects? - A Prospective Randomized Control Trial

Open Access Macedonian Journal of Medical Sciences ◽

10.3889/oamjms.2016.140 ◽

2016 ◽

Vol 4 (4) ◽

pp. 720-725 ◽

Cited By ~ 5

Author(s):

Ahmed Abbas Zaky ◽

Hanaa M. Elshenawy ◽

Tarek Abdel Hamed Harhash ◽

Mahmoud Shalash ◽

Noha Ismael Awad

Keyword(s):

Bone Density ◽

Laser Therapy ◽

Predictor Variable ◽

Low Level Laser Therapy ◽

Outcome Variable ◽

Control Group ◽

Low Level ◽

Low Level Laser ◽

Level Laser ◽

Significant Difference

AIM: The aim of the study was to evaluate the effect of Low-Level Laser Therapy (LLLT) on bone formation in cystic defects following cyst enucleation.PATIENTS AND METHODS: The sample was composed of sixteen patients with enucleated maxillary bony cystic lesions. With an age range from 20 - 44 grouped as eight Laser and eight Control patients. Laser group was subjected to low intensity diode laser immediately after surgery and then for three times per week for two weeks using a therapeutic laser irradiation. Group B (control group): patients were not subjected laser therapy.RESULTS: The predictor variable was exposure of bone defect to LLLT or none. The outcome variable was bone density changes measured by digital radiographs at day 1 and days 90 postoperatively. Descriptive and bivariate statistics were computed. There were no statistically significant differences between the 2 groups for the bone density at day 1. There was a statistically significant difference in bone density changes in each group at day 90: Significant at P ≤ 0.05. After adjusting for differences in day 1 for bone density, the estimated mean change in bone density changes at day 90 was significantly larger for Laser compared with control.CONCLUSION: The results of this study suggested that LLLT can enhance bone healing in maxillary cystic defects. This can serve as an adjunct method in preventing possible delayed healing and pathological fractures This also will be helpful for more researchers in early loading in case of dental implants to accelerate osseointegration.

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Assessment of healing of dental implant surgical site following Low-Level Laser Therapy using Bio-Clinical parameters: An Exploratory Study

Journal of Oral Implantology ◽

10.1563/aaid-joi-d-18-00316 ◽

2020 ◽

Author(s):

VARSHA PALLED ◽

DR. JITENDRA RAO ◽

DR. RAGHUWAR DAYAL SINGH ◽

DR. SHUCHI TRIPATHI ◽

DR. KALPANA SINGH ◽

...

Keyword(s):

Laser Therapy ◽

Test Group ◽

Low Level Laser Therapy ◽

Control Group ◽

Clinical Parameters ◽

Implant Stability ◽

Low Level ◽

Implant Stability Quotient ◽

Low Level Laser ◽

Level Laser

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.

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