Você está no menu de acessibilidade

Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/74127
Título: 
Biomechanical effect of one session of low-level laser on the bone-titanium implant interface
Autor(es): 
Instituição: 
  • UNIFEB
  • Universidade Federal de Alfenas (UNIFAL)
  • Universidade Estadual Paulista (UNESP)
ISSN: 
  • 0268-8921
  • 1435-604X
Resumo: 
Low-level laser (LLL) has been used on peri-implant tissues for accelerating bone formation. However, the effect of one session of LLL in the strength of bone-implant interface during early healing process remains unclear. The present study aims to evaluate the removal torque of titanium implants irradiated with LLL during surgical preparation of implant bed, in comparison to non-irradiation. Sixty-four Wistar rats were used. Half of the animals were included in LLL group, while the other half remained as control. All animals had the tibia prepared with a 2 mm drill, and a titanium implant (2.2 × 4 mm) was inserted. Animals from LLL group were irradiated with laser (gallium aluminum arsenide), with a wavelength of 808 nm, a measured power output of 50 mW, to emit radiation in collimated beams (0.4 cm2), for 1 min and 23 s, and an energy density of 11 J/cm2. Two applications (22 J/cm 2) were performed immediately after bed preparation for implant installation. Flaps were sutured, and animals from both groups were sacrificed 7, 15, 30, and 45 days after implant installation, when load necessary for removing implant from bone was evaluated by using a torquimeter. In both groups, torque values tended to increase overtime; and at 30 and 45 days periods, values were statistically higher for LLL group in comparison to control (ANOVA test, p < 0.0001). Thus, it could be suggested that a single session of irradiation with LLL was beneficial to improve bone-implant interface strength, contributing to the osseointegration process. © 2012 Springer-Verlag London Ltd.
Data de publicação: 
1-Jan-2013
Citação: 
Lasers in Medical Science, v. 28, n. 1, p. 349-352, 2013.
Duração: 
349-352
Palavras-chaves: 
  • Animal models
  • Dental implants
  • Low-level laser therapy
  • Osseointegration
  • Torque
  • animal experiment
  • animal tissue
  • biomechanics
  • bone
  • bone regeneration
  • bone remodeling
  • controlled study
  • fracture healing
  • gallium aluminum arsenide laser
  • implant
  • low level laser therapy
  • male
  • nonhuman
  • priority journal
  • rat
  • tibia
  • titanium implant
  • torque
  • Analysis of Variance
  • Animals
  • Biomechanics
  • Dental Implantation, Endosseous
  • Dental Implants
  • Laser Therapy, Low-Level
  • Models, Animal
  • Osteogenesis
  • Rats
  • Rats, Wistar
  • Surgical Flaps
  • Tibia
  • Titanium
  • Wound Healing
Fonte: 
http://dx.doi.org/10.1007/s10103-012-1167-3
Endereço permanente: 
Direitos de acesso: 
Acesso restrito
Tipo: 
outro
Fonte completa:
http://repositorio.unesp.br/handle/11449/74127
Aparece nas coleções:Artigos, TCCs, Teses e Dissertações da Unesp

Não há nenhum arquivo associado com este item.
 

Itens do Acervo digital da UNESP são protegidos por direitos autorais reservados a menos que seja expresso o contrário.