Coastal Erosion and its Economic Implications for Delmarva Many geologic processes affect the landscape of the Delmarva Peninsula drastically‚ but one specific process has major economic implications as well. The process of coastal erosion‚ which is defined as the actual removal of sand from a beach to deeper water offshore or alongshore into inlets‚ tidal shoals and bays‚ is one of the most detrimental geologic events to this region’s economy (Scientific American). This type of erosion can result
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mean by dental health? Dental health refers to all aspects of the health and functioning of our mouth especially the teeth and gums. Apart from working properly to enable us to eat‚ speak‚ laugh (look nice)‚ teeth and gums should be free from infection‚ which can cause dental caries‚ inflammation of gums‚ tooth loss and bad breath. Dental caries‚ also known as tooth decay or cavities‚ is the most common disorder affecting the teeth. The main factors controlling the risk of dental caries are
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Composite filling: Dental composite resins are types of synthetic resins which are used in dentistry as restorative material or adhesives. Synthetic resins evolved as restorative materials since they were insoluble‚ aesthetic‚ and insensitive to dehydration and were inexpensive. Unlike Amalgam which essentially just fills a hole and requires retention features to hold the filling‚ composite cavity restorations when used with dentin and enamel bonding techniques restore the tooth back to near its
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becoming a dentist. To become a dentist‚ one must attend dental school. The dental school must be accredited by the American Dental Association (ADA). In order to be accepted into any of the 56 (2006) dental schools in the United States‚ you must complete two years of predental education. Most people get a bachelor’s degree. In order to be accepted into dental school‚ you must first take the Dental Admissions Test (DAT). In the first year of dental school students normally take science classes like microbiology
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Introduction Soil erosion is one form of soil degradation along with soil compaction‚ low organic matter‚ loss of soil structure‚ poor internal drainage‚ salinisation‚ and soil acidity problems. These other forms of soil degradation‚ serious in themselves‚ usually contribute to accelerated soil erosion. Soil erosion is a naturally occurring process on all land. The agents of soil erosion are water and wind‚ each contributing a significant amount of soil loss each year in Ontario. Soil erosion may be a
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------------------------------------------------- DENTAL • MATERIALS * Study of physical and chemical properties of the metallic and non-metallic materials used in dentistry OBJECTIVES 1. In order to know the basic physical and chemical properties as they are related to its manipulation by the dentist. 2. To bridge the gap between the knowledge obtained in the basic courses like chemistry‚ physics and its relation… Physical properties: hardness‚ strength‚ brittleness Chemical
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must fully comprehend the major causes of soil erosion. One major cause of soil erosion is over-cultivation. This happens when farmlands are plowed for the growing of crops. Soil is loosened and exposed after plowing‚ leaving the soil to be exposed to wind and water erosion. Although it is necessary for plowing to occur‚ it accelerates the evaporation of water. If farmers neglect to rotate crops within their farmlands‚ for example‚ degradation and erosion negatively affect the regeneration process of
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Many different aspects between dental care and all of its sciences exist. Two very commonly confused professions within dental care are dental hygienists and dental assistants. Dental care as a whole consists of removing decay‚ filling cavities‚ cleaning and polishing the teeth‚ x-rays‚ checking for cancer of the mouth and many other procedures to maintain a healthy mouth‚ promoting a healthier life. In a nut shell‚ dental hygienists remove soft deposits from teeth‚ teach patients how to practice
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medical or dental procedure during which they have some sort of material implanted into their bodies. Yet‚ most people do not give much thought as to what materials are being implanted‚ and how they may react with the body. One perfect example of this would be having a cavity filled. In today¡¯s society dentists use various different materials and methods to fill cavities. Yet‚ the oldest and perhaps most effective is dental amalgam. Dental (silver) amalgam has been used in various dental applications
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What is dental caries and how can it be prevented? Dental caries is a disease which infects the hard tissues (enamel‚ dentin‚ and cementum) of the teeth‚ it can also be known as cavity or tooth decay. This disease leads to holes that destroy the structure of the teeth that are also known as cavities. It usually comes from food that has accumulated on the surface of the tooth. The bacteria mostly responsible in causing dental cavities are known as mutans streptococci and lactobacilli. By not treating
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