Promotion of Bone Repair in the Cortical Bone of the Tibia in Rats by Low Energy Laser (He-Ne) Irradiation

Yaakobi, Tali; Maltz, Lidya; Oron, Uri

doi:10.1007/s002239900126

Cited by 110 publications

(70 citation statements)

References 18 publications

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“…Some previous reports recognize positive effects of LLLT on bone [17]. This may possibly be corroborated by several previous studies in which LLLT was used in odontology treatments [18][19][20][21].…”

Section: Discussionsupporting

confidence: 67%

The recover from the excision in head and neck of femoral after therapy with low level laser

Pacheco‐Soares

Gusmao²,

Ferreira³

et al. 2012

JBiSE

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Degenerative articulate diseases, resulting from dysplasia and aseptic necrosis of the femoral head and neck, chronic dislocation of the femur and osteoarthrosis, are often treated surgically by an excision in the femoral head and neck. This procedure entails the formation of a false fibrous articulation, providing pain relief. The action of low level laser therapy (LLLT) has been described in orthopedic applications, to repair both bone and articular tissue. LLLT has demonstrated favorable results in vitro and in vivo in stimulating bone repair. A diode laser, 650 nm, with a potency of 30 mW, was used trans-surgically to irradiate. A diode laser (780 nm and the potency of 40 mW) was used on the skin for post-surgery applications. For the experiment, 10 clinically normal New Zealander rabbits underwent surgery and were then divided into two groups, one submitted to irradiation and the other kept for sham. Fifteen days after the surgery, samples of the newly formed tissue were collected from both groups, for macroscopic evaluation of the fibrous pseudo-articulation forming process on the irradiated and sham groups. The macroscopic and microscopic appearance of the samples, suggest that the utilization of the LLLT in the formation of fibrous pseudo-articulation was effective in accelerating the cicatrization process and in improving the quality of the formed tissue.

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Section: Discussionsupporting

confidence: 67%

The recover from the excision in head and neck of femoral after therapy with low level laser

Pacheco‐Soares

Gusmao²,

Ferreira³

et al. 2012

JBiSE

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show abstract

“…Our results confirm the positive bio-stimulatory effect of LLLT, which depends mainly on the ability of the tissue to respond to light energy. The mechanisms underlying stimulation of bone healing may be multifactorial and include: promotion of angiogenesis [26], collagen production [27], osteogenic cell proliferation and differentiation [28]. Another study in the tibia of rats stated that the improvement of bone repair by LLLT was due to its role in upregulation of cyclooxygenase-2 expression in bone cells [29].…”

Section: Discussionmentioning

confidence: 99%

Effect of Diode Laser on Healing of Tooth Extraction Socket: An Experimental Study in Rabbits

Hamad

Naif

Abdullah

2015

J. Maxillofac. Oral Surg.

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Objectives To evaluate the effect of low-level laser therapy on healing of extracted tooth socket of healthy rabbits. Design The sample of this study was 20 male rabbits of 2-2.5 kg weight with age range of 8-12 months. Right and left lower first premolar teeth were extracted. The extraction sockets of lower right first premolar were irradiated with 0.9 W gallium-aluminum-arsenide (GaAlAs) diode laser for 5 min, immediately after extraction and then every 72 h for the next 12 days. The extraction socket of left side were not exposed to laser and served as a control. The animals were sacrificed after 7, 14, 30 and 45 days and the experimental and control sockets were removed from the harvested mandibles and prepared for haematoxylin and eosin staining and Masson's stain. The prepared slides were examined under light microscope for histological and histomorphometric examination. Results The histological examination showed that diode laser-treated sockets demonstrated early formed new bone with faster maturation of primary bone to secondary bone as compared to non-treated control sockets. Histomorphometric analysis revealed a statistically significant increase in the density and volume of trabecular bone in lasertreated sockets than control sockets. Conclusion Diode laser application to tooth extraction socket has a positive effect on bone formation.

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“…A velocidade de regeneração foi superior a de coelhos não tratados. 8 Yaakobi et al 55 (1996) estudaram o efeito do laser hélio-neônio de baixa intensidade no reparo da região cortical da tíbia, em ratos. Os resultados mostraram que a radiação do laser aumentou em duas vezes o reparo ósseo.…”

Section: Laserunclassified

Tratamentos não farmacológicos na estimulação da osteogênese

et al. 2002

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A carga mecânica provoca microdeformações ósseas, que estimulam células osteoblásticas e, conseqüentemente, promovem adaptações nos ossos, muitas vezes relacionadas com uma menor reabsorção óssea e um aumento na formação óssea local. No entanto, o estímulo para formação óssea depende do número e freqüência das deformações aplicadas no osso. Concomitantemente aos estímulos ósseos providos pelas cargas mecânicas, é importante uma dieta rica em cálcio, a qual também beneficia o aumento da massa óssea. Entretanto, existem também outros métodos não farmacológicos, como o ultra-som pulsado de baixa intensidade, a estimulação elétrica e o laser, que já mostraram efeitos positivos na promoção da osteogênese. Assim, realizou-se um levantamento na literatura, no período de 1982 a 2001, sobre esses métodos não farmacológicos com o objetivo de avaliar tais métodos alternativos, que ajudam no aumento da massa óssea ou no estímulo à osteogênese.

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Promotion of Bone Repair in the Cortical Bone of the Tibia in Rats by Low Energy Laser (He-Ne) Irradiation

Cited by 110 publications

References 18 publications

The recover from the excision in head and neck of femoral after therapy with low level laser

The recover from the excision in head and neck of femoral after therapy with low level laser

Effect of Diode Laser on Healing of Tooth Extraction Socket: An Experimental Study in Rabbits

Tratamentos não farmacológicos na estimulação da osteogênese

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