grinding. * A tooth consists of two major regions‚ the crown and the root. * The enamel-covered crown is the exposed part of the tooth above the gingiva or gum. Enamel- Is the hardest substance in the body and is fairly brittle because it is heavily mineralized with calcium and salts. * The outer surface of the root is covered by a substance called cementum‚ attaches the tooth to the periodontal membrane (ligament) Dentin- a bonelike material‚ underlies the enamel and forms the bulk
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1 1. For lower premolars‚ the purpose of inclining the handpiece lingually is to A. B. C. D. Avoid buccal pulp horn Avoid lingual pulp horn Remove unsupported enamel Conserve lingual dentine 2. For an amalgam Restoration of weakened cusp you should A. B. C. Reduce cusp by 2mm on a flat base for more resistance Reduce cusp by 2mm following the outline of the cusp Reduce 2mm for retention form 3. Before filling a class V abrasion cavity with GIC you should A. B. C. Clean with pumice‚ rubber cup
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infection that affects the destruction of hard tissues such as enamel‚ dentin and cementum‚ as a result of bacterial action. Using fluoridated water can help put off tooth decay. In addition to that‚ brushing twice with fluoridated toothpaste‚ flossing‚ consuming balanced diet and regular dental checkups will help prevent dental caries to an extent. Early caries may not have any signs or symptoms. Later when the caries affects the enamel‚ the teeth may be responsive to sweet‚ hot or cold foods or drinks
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April 14‚ 2013 Keeping up with dental hygiene is important to maintain a healthy mouth. In order to keep your teeth healthy and clean‚ you must follow a specific routine at least once a day. Brushing and flossing every day can prevent gum disease‚ tooth decay‚ and remove any bacteria left on your teeth after eating. Although it seems like such an easy task‚ there are many different variables. Proper brushing takes at least two minutes and should be done after every meal. If you only brush your teeth
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Chronic Side effects of chronic cocaine use Cocaine hydrochloride Chronic cocaine intake causes brain cells to adapt functionally to strong imbalances of transmitter levels in order to compensate extremes. Thus‚ receptors disappear from the cell surface or reappear on it‚ resulting more or less in an "off" or "working mode" respectively‚ or they change their susceptibility for binding partners (ligands) – mechanisms called down-/upregulation. However‚ studies suggest cocaine abusers do
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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 oral hygiene‚ exposure to fluoride and a moderate frequency of consumption of cariogenic foods. Teeth are also affected by "tooth wear" or erosion. This condition is a normal part of aging where tooth enamel is lost due to exposure from acids other than those
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the food to produce acid‚ which can erode away the protective enamel coating on the tooth making it vulnerable to cavities and infections. This condition is also referred to as gingivitis and symptoms include bleeding and swelling in the gums. Pregnancy increases the risk of developing gingivitis mainly because hormonal changes during pregnancy create conditions for bacteria to grow which in turn increases the acid action on tooth enamel. Another reason why pregnant women are more susceptible to gingivitis
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health of teeth. Toothpaste is used to promote oral hygiene: it serves as an abrasive that aids in removing the dental plaque and food from the teeth‚ assists in suppressing halitosis‚ and delivers active ingredients (mainly fluoride) to help prevent tooth and gum disease (gingivitis).[1] Most of the cleaning is achieved by the mechanical action of the toothbrush‚ and not by the toothpaste. Salt and sodium bicarbonate (baking soda) are among materials that can be substituted for commercial toothpaste
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they produce acidic compounds which are substances that put your teeth in danger. You can also get tooth aches. The part that is affected the most is your enamel. These are some of the many effects of eating to much sugar. Did you know that every single time you eat something that is high in sugar‚ it weakens your enamel. Enamel is the hard white layer on the outside of your teeth. Once the enamel is gone‚ it can never be replaced. It is also the hardest material in your body. The reason why it
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from my mouth cannot be removed. When I am finding some protein‚ I found that Glucansucrase which is related on the issue of tooth decay. I think Glucansucrase should be very interesting for people who have tooth problem just like me. Glucansucrase is an enzyme used by bacteria in our human mouths to produce long sticky biofilm chains to stick teeth and cause tooth decay1. From the Protein Data Bank‚ I know that the bacteria use the Glucansucrase to build long‚ sticky chains of sugars called
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