نتایج جستجو برای: dental waste
تعداد نتایج: 242786 فیلتر نتایج به سال:
OBJECTIVE Although waste is traditionally assessed as a pollutant which needs to be reduced or lessened, its management is certainly necessary. Nowadays, biological fuel cells, through the direct conversion of organic matter to electricity using biocatalysts, represent a technology able to produce sustainable energy by means of waste treatment. This study aims to propose a mean to generate ener...
Backgrounds and Objectives: Due to having features such as toxicity, corrosiveness, ignitability, reactivity or other similar characteristics, hazardous wastes refer to the wastes that jeopardize man's health and environment. A study was required to identify the hazardous wastes in Tehran University of Medical Sciences (TUMS), since it plays an important role in the development of the country's...
Oral health is not separate from general health, but maintaining oral health is definitely difficult and different in old age. Even though, few elderly have physical and/or mental situation that call for particular interest in the dental workplace, one should not presume that all elderly community shares these circumstances. In order to achieve health, it is necessary to know few aspects of old...
Dental pulp, which is surrounded by hard tissue (dentin and enamel), consists of pulp cells, odontoblasts, endothelial cells, neurons, immune system cells, and the extracellular matrix, and plays key roles in maintaining the function of healthy teeth [1]. Via the apical foramen of tooth, blood vessels supply nutrients to the tooth and remove waste products, and neural network warns for harmful ...
in current study, 63 samples of bat populations collected from differ regions were used for evaluating the geographic variations. twenty cranial and dental characters for traditional morphometric and landmarks method on the ventral, dorsal skull and mandible for geometry morphometric studies were used. statistical analyses of traditional morphometric and geometry morphometric data indicated low...
It is generally accepted that three conditions are essential in the oral cavity for dental caries to occur: a suitable microbe, a substrate for the microbe, and a susceptible tooth. Susceptibility or resistance to dental caries is usually thought of in terms of structure, which is determined, for the most part, during calcification. However, it is also plausible that susceptibility to dental ca...
AIM The aim of this study was to evaluate mercury levels in wastewater and in patients during the removal of dental amalgam restorations. MATERIALS AND METHODS To test for mercury levels, patients were tested before and after amalgam restoration removal. To test for mercury emissions, samples of constant volume of wastewater from high-speed drills were collected before and during amalgam rest...
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