Abstract
The present work evaluates mechanically the bone-implant attachment submitted or not to low-level laser therapy, with wavelength of 795 nm, in a continuous way, with power of 120 mW. The implant was placed in one of the shinbones of 24 mice, randomly distributed into two groups. The experimental group was submitted to six laser applications, divided into four points previously established, two lateral and two longitudinal, six times 8 J/cm2 with an interval of 2 days, totaling the dose of 48 J/cm2. The control group did not receive laser therapy. The interval between applications was 48 h and the irradiations began immediately after the end of the implant surgeries. The two groups were killed on the 14th day and a bone block of the area was removed where the implant was inserted. A torque machine was used to measure the torque needed for loosening the implants. A statistically significant difference was observed between the two groups. The experimental group presented larger difficulty for breaking up the implant interface with the bone block than the control group. It can be concluded that with the animal model and the protocol of irradiation present in this study, the laser therapy demonstrated capacity to increase the attachment bone implant.
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References
Pinheiro AL, Frame JF (1992) Laser em odontologia: seu uso atual e perspectivas futuras. RGO 40(5):327–332
Genovese WJ (2000) Laser de baixa intensidade: aplicações terapêuticas em odontologia. Lovise, São Paulo
Brugnera A Jr, Santos AE, Bologna ED et al (2003) Atlas de laserterapia aplicada à clínica odontológica. Santos, São Paulo
Khadra M, Kasem N, Haanaes HR et al (2004) Enhancement of bone formation in rat calvarial bone defects using low-level laser therapy. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 97(6):693–700
Khadra M, Ronold HJ, Lyngstadaas SP et al (2004) Low-level laser therapy stimulates bone–implant interaction: an experimental study in rabbits. Clin Oral Implants Res 15(3):325–332
Lopes CB, Pinheiro AL, Sathaiah S et al (2005) Infrared laser light reduces loading time of dental implants: a Raman spectroscopic study. Photomed Laser Surg 23(1):27–31
Dortbudak O, Haas R, Mailath-Pokorny G (2002) Effect of low-power laser irradiation on bony implant sites. Clin Oral Implants Res 13(3):288–292
Pretto JL (2004) Avaliação por meio de MEV da região periimplantar após irradiação com laser diodo, infravermelho (λ = 830 nm), em implantes de titânio situados em tíbia de ratos. Pontifícia Universidade Católica do Rio Grande do Sul, Dissertation, Porto Alegre
Pinheiro AL, Limeira Junior Fde A, Gerbi ME et al (2003) Effect of 830-nm laser light on the repair of bone defects grafted with inorganic bovine bone and decalcified cortical osseous membrane. J Clin Laser Med Surg 21(5):301–306
Almeida-Lopes L (1999) Análise in vitro da proliferação celular de fibroblastos de gengiva humana tratados com laser de baixa potência. Universidade Vale do Paraíba, Dissertation, São José dos Campos (SP)
Campanha BP (2004) Implantes dentais sem estabilidade inicial sob irradiação laser de baixa potência: avaliação da ancoragem através do torque de remoção Theses. Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre (RS)
Pinheiro AL (1998) Interação tecidual. In: Brugnera A Jr, Pinheiro ALB (eds) Lasers na odontologia moderna. Pancast, São Paulo, pp 27–44
Luger EJ, Rochkind S, Wollman Y et al (1998) Effect of low-power laser irradiation on the mechanical properties of bone fracture healing in rats. Lasers Surg Med 22(2):97–102
Gordjestani M, Dermaut L, Thierens H (1994) Infrared laser and bone metabolism: a pilot study. Int J Oral Maxillofac Surg 23(1):54–56
Guzzardella GA, Torricelli P, Nicoli-Aldini N et al (2003) Osseo-integration of endosseous ceramic implants after postoperative low-power laser stimulation: an in vivo comparative study. Clin Oral Implants Res 14(2):226–232
Wennerberg A, Albrektsson T, Andersson B et al (1995) A histomorphometric and removal torque study of screw-shaped titanium implants with three different surface topographies. Clin Oral Implants Res 6(1):24–30
Cho SA, Jung SK (2003) A removal torque of the laser-treated titanium implants in rabbit tibia. Biomaterials 24(26):4859–4863
Khadra M (2005) The effect of low-level laser irradiation on implant–tissue interaction. In vivo and in vitro studies. Swed Dent J Suppl 172:1–63
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We would like to thank Professor Dr. Arnaldo Mazzei (Kettering University, Flint, MI, USA) for the revision of this paper.
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Maluf, A.P., Maluf, R.P., da Rocha Brito, C. et al. Mechanical evaluation of the influence of low-level laser therapy in secondary stability of implants in mice shinbones. Lasers Med Sci 25, 693–698 (2010). https://doi.org/10.1007/s10103-010-0778-9
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DOI: https://doi.org/10.1007/s10103-010-0778-9