ArticleLasers in surgery and medicine2026
Effects of Dual Wavelength Photobiomodulation on Osseointegration in Grafted Areas.
Article in Lasers in surgery and medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveThis study evaluated the effects of dual-wavelength photobiomodulation (PBMT) (infrared and red laser) on osseointegration and bone structure in areas grafted with deproteinized bovine bone (DBB).
methodsSixty-four rats were randomly distributed into four groups. The groups were divided according to the irradiation protocol applied: CTR-Implants not submitted to PBMT; IRL-Implants treated with infrared PBMT; RL-Implants treated with red PBMT; IRL/RL-Implants treated with red and infrared PBMT. The animals underwent grafting procedures on the tibias, and 60 days later, the implants were installed. After the implant placement, PBMT was performed in the PBMT groups through the application of 4 J around the implants. After 15 and 45 days, the animals were euthanized (n = 8). Analyses were performed on the amount of mineralized tissues around the implants (BV/TV%), bone tissue microstructure (thickness, space and number of trabeculae-Tb.Th; Tb.Sp, and Tb.N), and osseointegration (bone/implant contact-%BIC and Bone between the threads-%BBT).
resultsThe IRL group presented higher values of BV/TV%, while the RL group presented higher values of Tb.N when compared with the CTR group at 45 days (p < 0.05). The IRL/RL group presented higher values of BV/TV% and Tb.N when compared with the CTR group at 45 days (p < 0.05). Although no statistical differences were found, the IRL/RL group presented higher %BIC and %BBT.
conclusionIt can be concluded that the combination of red and infrared lasers does not improve the osseointegration of the implants installed in DBB-grafted areas of rat tibiae.
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