Experimental evaluation of strength degradation of orthodontic chain elastics exposed to cigarette combustion smoke
نویسندگان
چکیده
منابع مشابه
Behavior of cardiac variables in animals exposed to cigarette smoke.
OBJECTIVE To assess the behavior of cardiac variables in animals exposed to cigarette smoke. METHODS Two groups of Wistar rats were studied as follows: control group (C), comprising 28 animals; and smoking group (S), comprising 23 animals exposed to cigarette smoke for 30 days. Left ventricular cardiac function was assessed in vivo with transthoracic echocardiography, and myocardial performan...
متن کاملExperimental investigation of the strength of glass fiber-reinforced concrete exposed to high temperature
This study investigated the effects of high temperature exposure on the compressive, tensile, and flexural strengths of concrete containing glass fiber. A total of 108 cubic specimens (150 mm × 150 mm × 150 mm), cylindrical specimens (300 mm × 150 mm), and prismatic specimens (500 mm × 150 mm × 150 mm) were prepared for compressive, tensile, and flexural strength testing, respectively. The spec...
متن کاملRespiratory control in neonatal rats exposed to prenatal cigarette smoke.
RATIONALE Prenatal cigarette smoke (CS) exposure, increased environmental temperature, and hypoxic episodes have been postulated as major risk factors for sudden infant death syndrome. OBJECTIVES To test the hypothesis that maternal CS exposure disrupts eupneic breathing and depresses breathing responses of neonatal rats to thermal and hypoxic challenges. METHODS Experiments were performed ...
متن کاملSodium pertechnetate (Na99mTcO4) biodistribution in mice exposed to cigarette smoke
BACKGROUND: The biological effects of cigarette smoke are not fully known. To improve our understanding of the action of various chemical agents, we investigated the biodistribution of sodium pertechnetate (Na99mTcO4) in mice exposed to cigarette smoke. METHODS: Fifteen BALB/c male mice were exposed to the smoke of nine whole commercial cigarettes per day, 3 times/day, for up to 10 days to whol...
متن کاملAltered arousal response in infants exposed to cigarette smoke.
AIMS A failure of the arousal mechanism is a key feature in the apnoea theory for sudden infant death syndrome (SIDS). In infants studied at an age when the incidence of SIDS is highest, we evaluated whether in utero smoke exposed infants have altered arousal response to standardised auditory stimuli, and/or sleep pattern, as recorded on overnight complex sleep polysomnography. METHODS A stan...
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ژورنال
عنوان ژورنال: South European Journal of Orthodontics and Dentofacial Research
سال: 2020
ISSN: 1849-3858,1849-5249
DOI: 10.5937/sejodr7-25828