Infrared Laser Photobiomodulation (? 830 nm) on Bone Tissue Around Dental Implants: A Raman Spectroscopy and Scanning Electronic Microscopy Study in Rabbits

Lopes, Cibelle Barbosa; Pinheiro, António Luiz Barbosa; Sathaiah, S.; Silva, Newton Soares da; Salgado, Miguela.C.

doi:10.1089/pho.2007.2030

Cited by 31 publications

(137 citation statements)

References 23 publications

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“…The GaAlAs laser with an 830-nm wavelength was selected on the basis of successful results obtained on fibroblasts and also on osteoblasts, both in vitro and in vivo by different authors [15][16][17][33][34][35][36][37][38][39][40][41][42][43][44][45]. The infrared lasers are known to have a greater depth of tissue penetration in comparison to red or blue light [46], thus, the osteoblasts cells could better absorb the laser energy because of the low water absorption at that wavelength [33,36,45].…”

Section: Discussionmentioning

confidence: 99%

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Stability of dental implants after irradiation with an 830-nm low-level laser: a double-blind randomized clinical study

et al. 2011

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Section: Discussionmentioning

confidence: 99%

“…Little data exist concerning these effects on the osseointegration process of implants [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Stability of dental implants after irradiation with an 830-nm low-level laser: a double-blind randomized clinical study

et al. 2011

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“…The specimens were examined by (SEM, JXA-840A, JEOL, Japan) and photograph of in the same magnification. (30) Laboratory analysis:…”

Section: Scanning Electron Microscopic Study (Sem)mentioning

confidence: 99%

The Effect of Systemic Delivery of Aminoguanidine Versus Doxycycline on the Resorptive Phase of Alveolar Bone Following Modified Widman Flap in Diabetic Rats : A Histopathological and Scanning Electron Microscope ( SEM ) Study

E¹,

Aldahlawi²,

El-Deeb³

et al. 2014

IJHS

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Abstract:Objectives: Aminoguanidine (guanylhydrazinehydrochloride) is a drug that prevents many of the classical systemic complications of diabetes including diabetic osteopenia through its inhibitory activity on the accumulation of advanced glycation end -products (AGEs). The aim of the present study was to evaluate the effectiveness of aminoguanidine versus doxycycline in reducing alveolar bone resorption following mucoperiosteal flap in diabetic rats, using the conventional histopathology and scanning electron microscope (SEM).Methods: Twenty-seven male albino rats were used in this study. Periodontal defects were induced experimentally on lower anterior teeth. All rats were subjected to induction of diabetes, by IV injection of the pancreatic B-cells toxin alloxan monohydrate. After eight weeks following the establishment of periodontal defects in all rats, the ligation was removed and 3 rats were scarified as negative control (group1). The remaining animals were divided into three group based on treatment applied following mucoperiosteal flap surgery. Group 2receivedsaline treatment only, group 3 received doxycycline periostat (1.5 mg/kg/day) for 3 weeks, and group 4 received aminoguanidine (7.3 mmol/kg) for 3 weeks. The fasting glucose level was measured weekly post operatively. After 21 days all rats were sacrificed. Three anterior parts of the mandible of each group was prepared for histopathologicalexamination and two parts were prepared for SEM.Results: Aminoguanidine treated group (group4) showed statistically significant increased new bone formation, higher number of osteoblasts and decrease osteoclasts number, resorptive lacunae and existing inflammatory cell infiltration as compared to positive control group (group 2) (P<0.05). Doxycycline was also effective in reducing bone loss as documental by histopathological study. Conclusion:The present study showed that aminoguanidine was significantly effective in reducing alveolar bone loss and can modify the detrimental effects of diabetes in alveolar bone resorption.

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“…Previous studies have evaluated the irradiation of extraction sockets, 3 modulation of skin wound healing, [4][5][6] regeneration of nervous tissue, 5 enhancement of peri-implant tissue repair after implant placement, 2,[7][8][9][10][11][12][13][14][15][16] and modulation of postoperative pain. 2,7,[17][18][19][20][21][22][23][24] Other in vivo and in vitro studies have reported the positive effects of LLLT on the repair process in animal models and tissue cultures.…”

Section: Introductionmentioning

confidence: 99%

“…2,7,[17][18][19][20][21][22][23][24] Other in vivo and in vitro studies have reported the positive effects of LLLT on the repair process in animal models and tissue cultures. 4,22,25 However, there are large variations in laser doses, [7][8][9][10][11][12][13][14][15]26 even though dose is considered an important parameter in laser therapy, 27 especially when some specific biomodulatory effects are expected.…”

Section: Introductionmentioning

confidence: 99%

Effect of Three Different Protocols of Low-Level Laser Therapy on Thyroid Hormone Production After Dental Implant Placement in an Experimental Rabbit Model

Weber

Mayer²,

Cenci³

et al. 2014

Photomedicine and Laser Surgery

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Objective: The purpose of this study was to assess the systemic effects of low-level laser therapy (LLLT) on thyroid gland function and, consequently, calcium regulation -as measured by serum triiodothyronine (T3), thyroxine (T4), and free calcium levels -when administered after dental implant placement in a rabbit model. Background data: Protocols for the use of laser therapy in several clinical procedures are currently under investigation, as not all of the actions and systemic effects of laser irradiation have been clearly established. Materials and methods: Forty male adult New Zealand rabbits were distributed across five groups of eight animals each: two control groups (C-I and C-II) of unirradiated animals, and three experimental groups (E-5, E-10, and E-20), each exposed to a distinct dose of gallium-aluminum-arsenide (GaAlAs) laser [k = 830 nm, 50 mW, continuous wave (CW)] every 48 h for a total of seven sessions. The total dose per session was 5 J/cm 2 in E-5, 10 J/cm 2 in E-10, and 20 J/cm 2 in E-20. Animals in C-II and all experimental groups underwent surgical extraction of the mandibular left incisor followed by immediate placement of an osseointegrated implant (Nanotite Ò , Biomet 3i TM ) into the socket. Animals in group C-I served as an absolute control for T3, T4, and calcium measurements. The level of significance was set at 5% ( p £ 0.05). Results: ANOVA with Tukey's posthoc test revealed significant differences in T3 and calcium levels among experimental groups, as well as significant within-group differences in T3, T4, and calcium levels over time. Conclusions: Although not reaching abnormal values, LLLT applied to the mandible influenced thyroid function in this model.

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Infrared Laser Photobiomodulation (? 830 nm) on Bone Tissue Around Dental Implants: A Raman Spectroscopy and Scanning Electronic Microscopy Study in Rabbits

Cited by 31 publications

References 23 publications

Stability of dental implants after irradiation with an 830-nm low-level laser: a double-blind randomized clinical study

Stability of dental implants after irradiation with an 830-nm low-level laser: a double-blind randomized clinical study

The Effect of Systemic Delivery of Aminoguanidine Versus Doxycycline on the Resorptive Phase of Alveolar Bone Following Modified Widman Flap in Diabetic Rats : A Histopathological and Scanning Electron Microscope ( SEM ) Study

Effect of Three Different Protocols of Low-Level Laser Therapy on Thyroid Hormone Production After Dental Implant Placement in an Experimental Rabbit Model

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