phosphoric acid/некроз

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Pulpal response to dentin etched with 10% phosphoric acid.

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OBJECTIVE To histopathologically evaluate the effect of etching sound dentin with 10% phosphoric acid, in cavities prepared just within the DEJ on young patients. METHODS Twenty-four orthodontic patients who required premolar extractions were selected for the study. Each of the patients had facial

Inositol hexa phosphoric acid (phytic acid), a nutraceuticals, attenuates iron-induced oxidative stress and alleviates liver injury in iron overloaded mice.

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Inositol hexa phosphoric acid (IP6) or Phytic acid, a natural antioxidant of some leguminous plants, known to act as a protective agent for seed storage in plants by suppressing iron catalyzed oxidative process. Following the same mechanism, we have tested the effect of IP6 on iron overloaded in

The effect of etching on bacterial microleakage of an adhesive composite restoration.

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OBJECTIVE The incidence of bacterial microleakage, pulp inflammation and necrosis associated with dentine etching treatments prior to restoration are not known. Consequently, to resolve some of the controversy surrounding the effects and importance of vital dentine etching, the authors investigated

Pulp capping with adhesive resin-based composite vs. calcium hydroxide: a review.

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The results of some short-term experiments suggest that direct capping of a vital pulp with the modern resin-based composite systems may be as effective as capping with calcium hydroxide. Total cavity etching with 10% phosphoric acid seems to be safe for the exposed pulp, but unless annulled by

Long-term prognosis of crown-fractured permanent incisors. The effect of stage of root development and associated luxation injury.

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OBJECTIVE The aim of the present study was to investigate pulp healing responses following crown fracture with and without pulp exposure as well as with and without associated luxation injury and in relation to stage of root development. PATIENT MATERIAL AND METHODS: The long-term prognosis was

On the relation of inflammation to the chemical constitution of injurious agents. On the pharmacology of inflammation.

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Changes characteristic of an inflammatory reaction caused by the injection of an injurious agent into the peritoneal cavity were measurable by the quantity of peritoneal fluid, by the number of leucocytes that entered the cavity, and by the abundance of exuded protein. Inflammation increased in

Sphingosine 1-phosphate induces chemotaxis of immature and modulates cytokine-release in mature human dendritic cells for emergence of Th2 immune responses.

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Sphingosine 1-phosphate (S1P) is a potent extracellular lysolipid phosphoric acid mediator that is released after IgE-stimulation of mast cells. Here we investigated the biological activity and intracellular signaling of S1P on human dendritic cells (DC), which are specialized antigen presenting

A Case of Spontaneous Tumor Lysis Syndrome in Malignant Melanoma.

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A 62-year-old man with a complaint of back pain lasting 2 months was admitted. He also presented a huge abdominal tumor. Diagnostic imaging showed metastatic tumors in the liver, lumbar vertebrae and bilateral lung. An ultrasound-guided needle biopsy revealed a lung tumor containing melanic tissue.

A clinical study of the "open sandwich" technique in pediatric dental practice.

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OBJECTIVE This study evaluated the clinical efficacy of the "open sandwich" restoration for pediatric dental practice. METHODS Three pediatric dentists used a standardized preparation and restorative technique to place the restorations. The prepared tooth was etched with a phosphoric acid semigel

Direct pulp capping with a dentin adhesive resin system in children's permanent teeth after traumatic injuries: case reports.

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Traumatic injuries in the permanent teeth of children and adolescents are one of the most frequent causes of dental treatment. The article presents the use of an enamel and dentin adhesive resin system, Syntac, and resin composite materials, Tetric and Variolink, as materials of choice for direct

[Effect of different intensities of electroacupuncture on expression of monocyte chemoattractant protein-1 and TNF-alpha in adipose tissue in obesity rats].

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OBJECTIVE To observe the effect of different intensities of electroacupuncture (EA) on adipose tissue inflammatory cytokines in rats with simple obesity so as to investigate its mechanism underlying body weight reduction. METHODS Forty SD male rats were randomly divided into normal, model, strong EA

Histopathological assessment of triphenyl phosphite neurotoxicity in the hen.

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The signs of neurotoxicity observed in the cat and the rat following single or multiple doses of the phosphorous acid ester triphenyl phosphite (TPP) have been reported to differ from the syndrome known as organophosphorous compound induced delayed neuropathy (OPIDN) caused by some phosphoric acid

Natural occurrences of ochratoxicosis in poultry.

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Five independent episodes of ochratoxicosis in about 970,000 turkeys, two episodes in about 70,000 laying hens, and two episodes in about 12,000,000 broiler chickens were investigated. Ochratoxin A concentrations in suspect feed and ingredients ranged from less than .2 to 16 ppm. Feed samples tested

Effectiveness of activated carbon and Egyptian montmorillonite in the protection against deoxynivalenol-induced cytotoxicity and genotoxicity in rats.

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This study was conducted to prepare and characterize activated carbon (AC) and to evaluate its protective effect against deoxynivalenol (DON) toxicity in rats compared to Egyptian montmorillonite (EM). AC was prepared using a single-step chemical activation with phosphoric acid (H3PO4). The resulted

L929 fibroblast bioassay on the in vitro toxicity of SnCl2, H3PO4, Clearfil SE primer and combinations thereof.

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Stannous chloride (SnCl(2), 35%) can increase microtensile bond strength between a self-etching adhesive and dental hard tissue either alone or in combination with phosphoric acid (H(3)PO(4), 35%). Whereas cell toxicity of H(3)PO(4) has been sufficiently investigated, little is known about the

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