Archives of oral biology
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Archives of oral biology · Apr 2018
Presence of the esp gene in Enterococcus faecium derived from oropharyngeal microbiota of haematology patients.
Antibiotic use and immunocompromised status in haematology patients have been shown to determine the constituents of commensal microbiota with highly increased resistance, including vancomycin resistant enterococci. We compared the carriage of virulence factor genes and the capacity for biofilm formation in vancomycin resistant enterococci (VRE) originating from the oropharyngeal and stool cultures of haematology patients. ⋯ In the present study, isolation of VRE from the oropharynx in haematology patients was associated with esp gene carriage. Further research is needed to investigate the clinical and long-term effects of this finding.
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Archives of oral biology · Dec 2017
Inhibition of malodorous gas formation by oral bacteria with cetylpyridinium and zinc chloride.
The antimicrobial efficacy of zinc- (ZnCl2) and cetylpyridinium-chloride (CPC) and their inhibition capacity on volatile sulfur compound (VSC) production by oral bacterial strains were investigated. ⋯ Both ZnCl2 and CPC effectively inhibit bacterial growth causative of halitosis and periodontal disease, resulting in a direct decrease of bacterial VSCs production.
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Archives of oral biology · Jan 2017
Effects of repetitive transcranial magnetic stimulation on masseter motor-neuron pool excitability.
Repetitive transcranial magnetic stimulation (rTMS) has been widely used to modulate the excitability of the cortical control of limbs muscles, but rarely in the cortical control of human masseter muscles. This study aims to investigate the effects of rTMS on masseter motor-neuron pool excitability in humans. ⋯ The present findings demonstrate that high-frequency rTMS increases masseter motor-neuron pool excitability.
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Archives of oral biology · Nov 2015
Effect of a repeated jaw motor task on masseter muscle performance.
The aim of this study was to investigate the effects of 5-days repeated jaw-motor tasks on masseter muscle accuracy performance. ⋯ The findings suggest that a rigorous training paradigm may improve the performance of masseter muscles in terms of accuracy but not MVC. This might have implications for understanding the rehabilitation of patients with functional disorders in the stomatognathic system.
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Archives of oral biology · Nov 2015
Salivary flow rate and biochemical composition analysis in stimulated whole saliva of children with cystic fibrosis.
It is recognized that cystic fibrosis (CF) patients present a risk for oral diseases, since it affects exocrine glands, and the treatment consists of a carbohydrate-rich diet. Recognizing the protective function of saliva on maintaining oral health, the aim of the study was to evaluate salivary parameters in stimulated whole saliva from children with CF. ⋯ Children with CF presented significant changes in salivary composition, including salivary flow rate, buffering capacity and protective proteins of the oral cavity, compared with children without CF.