Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 3 de 3
Filter
Add more filters











Publication year range
1.
J Photochem Photobiol B ; 89(1): 50-5, 2007 Nov 12.
Article in English | MEDLINE | ID: mdl-17920925

ABSTRACT

It has been suggested that low-level laser therapy (LLLT) can modulate inflammatory processes. The aim of this experiment was to investigate what effects red laser irradiation with two different wavelengths (660 nm and 684 nm) on carrageenan-induced rat paw edema and histology. Thirty two male Wistar rats were randomly divided into four groups. One group received a sterile saline injection, while inflammation was induced by a sub-plantar injection of carrageenan (1 mg/paw) in the three other groups. After 1 h, LLLT was administered to the paw in two of the carrageenan-injected groups. Continuous wave 660 nm and 684 nm red lasers respectively with mean optical outputs of 30 mW and doses of 7.5 J/cm(2) were used. The 660 nm and 684 nm laser groups developed significantly (p<0.01) less edema (0.58 ml [SE+/-0.17] ml and 0.76 ml [SE+/-0.10] respectively) than the control group (1.67 ml [SE+/-0.19]) at 4h after injections. Similarly, both laser groups showed a significantly lower number of inflammatory cells in the muscular and conjunctive sub-plantar tissues than the control group. We conclude that both 660 nm and 684 nm red wavelengths of LLLT are effective in reducing edema formation and inflammatory cell migration when a dose of 7.5 J/cm(2) is used.


Subject(s)
Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Carrageenan , Color , Edema/chemically induced , Edema/radiotherapy , Foot Diseases/radiotherapy , Low-Level Light Therapy , Animals , Cell Count , Edema/pathology , Edema/veterinary , Foot Diseases/chemically induced , Foot Diseases/pathology , Lasers, Semiconductor/therapeutic use , Male , Muscles/cytology , Muscles/pathology , Muscles/radiation effects , Rats , Rats, Wistar
2.
Rev. fac. odontol. Univ. Fed. Bahia ; 33: 27-32, jul.-dez. 2006. ilus
Article in Portuguese | BBO - Dentistry | ID: biblio-858063

ABSTRACT

Com a finalidade de obter uma reparação óssea capaz de suportar cargas para implantes, são utilizados enxertos de osso autógeno que apresentam superioridade sobre outros. O uso de laser e BMP como bioestimuladores da reparação óssea são freqüentemente utilizados. Foram selecionados oito pacientes com necessidades de enxerto ósseo para instalação de implantes na região da maxila anterior. A àrea doadora autógena foi a sínfise mentoniana. Após 150 dias, por ocasião da cirurgia óssea de colocação do implante, foi removida a região da interface enxerto-leito com auxílio de uma broca trefina de 3mm de diâmetro. Os resultados mostraram a formação de um tecido ósseo do tipo compacto com grandes cavidades medulares. Observou-se maior número de osteócitos nos grupos tratados. O tecido medular apresentou-se com aspecto fibroso nos grupos G2 e G4. Concluímos, assim, que o uso isolado de BMP e isolado de laser estimulam a proliferação celular e o uso conjugado de ambos potencializam seus efeitos.


Subject(s)
Humans , Bone Remodeling , Lasers
3.
Revista de Odontología da UNESP;29(1/2): 145-158,
in Portuguese | URUGUAIODONTO | ID: odn-16534
SELECTION OF CITATIONS
SEARCH DETAIL