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Photobiomodulation by a 635nm Diode Laser on Peri-Implant Bone: Primary and Secondary Stability and Bone Density Analysis—A Randomized Clinical Trial
Joint Authors
Matys, Jacek
Dominiak, Marzena
Świder, Katarzyna
Grzech-Leśniak, Kinga
Umberto, Romeo
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-04-22
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Introduction.
Various procedures in dental implantology are performed to enhance the bone healing process and implant stability.
One of these methods can be a low-level laser therapy (LLLT).
Objectives.
The aim of our study was to evaluate the stabilization (primary and secondary) and bone density in peri-implant zone after LLLT protocol using a 635 nm diode laser.
Material and Methods.
The research included 40 implants placed in the posterior region of a mandible in 24 patients (8 women and 16 man; age: 46.7 ± 8.7 years).
The patients were randomly divided into 2 groups G1 (n=12, 18 implants) and G2 (n=12, 22 implants) according to the treatment procedure; G1 (test): 635 nm laser, with handpiece diameter: 8mm, output power: 100mW, spot area: 0.5024cm2, average power density: 199.04mW/cm2, continuous mode, dose: 4J per point (8J/cm2), time: 40 sec per point, 2 points (irradiation on a buccal and a lingual side of the alveolus/implant), and total energy per session 8J; G2 (control): no laser irradiation.
The G1 (test) group’s implants were irradiated according to the following protocol: 1 day before surgery, immediately after the surgery and 2, 4, 7, and 14 days after.
The total energy after all therapeutic sessions was 48J.
The implants stability was measured employing a Periotest device (Periotest Test Value: PTV) (measured immediately after the surgery, 7 days, 2 weeks, 4 weeks, and 2 and 3 months after the surgery) and the bone density using cone-beam computed tomography (grayscale value) (measured immediately after the surgery, 4 weeks and 12 weeks after the treatment).
Results.
The average implant stability at different time points showed lower PTV value (higher stability) at 2 n d and 4 t h week after 635 nm laser irradiation (G1) compared with a control (G2) group (p<0.01).
The secondary stability of the implants after 12 weeks observation was not significantly higher for the laser group in contrast to none-irradiated implants (p>0.05).
The mean grayscale value at the apical, middle, and cervical level of the titanium implants showed the reduction of pixel grayscale value after 2 weeks and was lower for the G1 group in contrast to the G2 group (p<0.01).
The value of grayscale after 12 weeks was significantly higher at the middle and apical level of the implants in the G1group in contrast to the G2 group (p<0.01).
Conclusion.
The application of the 635 nm diode laser enhanced secondary implant stability and bone density.
However, to assess the impact of the LLLT on peri-implant bone with different bone densities, further well-controlled long-term trials on larger study groups are needed.
American Psychological Association (APA)
Matys, Jacek& Świder, Katarzyna& Grzech-Leśniak, Kinga& Dominiak, Marzena& Umberto, Romeo. 2019. Photobiomodulation by a 635nm Diode Laser on Peri-Implant Bone: Primary and Secondary Stability and Bone Density Analysis—A Randomized Clinical Trial. BioMed Research International،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1124088
Modern Language Association (MLA)
Matys, Jacek…[et al.]. Photobiomodulation by a 635nm Diode Laser on Peri-Implant Bone: Primary and Secondary Stability and Bone Density Analysis—A Randomized Clinical Trial. BioMed Research International No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1124088
American Medical Association (AMA)
Matys, Jacek& Świder, Katarzyna& Grzech-Leśniak, Kinga& Dominiak, Marzena& Umberto, Romeo. Photobiomodulation by a 635nm Diode Laser on Peri-Implant Bone: Primary and Secondary Stability and Bone Density Analysis—A Randomized Clinical Trial. BioMed Research International. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1124088
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1124088