and quickly. Dental erosion is also commonly referred to as tooth enamel erosion or decay. There are multiple characteristics of humans that can cause dental erosion or speed up the time that it takes for tooth enamel to wear away. Erosion of the enamel is a result of mainly biological factors, chemicals, and behavioral actions (Lussi & Jaeggi, 2008). Many clinicians and researchers have been concerned about the condition of tooth enamel erosion for many years, which led them to discover that dental
The tooth is the hardest structure in the body, with the strength of enamel exceeding that of bone. If teeth are so tough that they can grind through wood then that begs the question why we keep losing them? It’s nearly inevitable that at some point in life you will lose some of this super tissue just by having a sip on your fizzy. Although it seems that there is a large number of ways for you to lose dental hard tissue, they can be boiled down into to broad mechanisms: Mechanical destruction e.g
Fluoridation Water fights against tooth decay SCH3U1-04 Minjae.Kim In year 1945, Ontario became the first province in Canada to add fluoride in to community water supplies. The idea of fluoridated water can help prevent from tooth decay and cavities; however it was the first time in Canada with providing community water supplies with fluoride in it. The human’s teeth are the hardest substance in the human body and 96% of them are made of minerals called hydroxyapatite (Ca5(PO4)3OH) and when
of enamel without loss of tooth structure Diagnosis: No radiographic abnormalities. Radiographs recommended, especially if other signs or symptoms are present Treatment: Etching and sealing with resin; Smooth sharp edges Follow up: Usually none Enamel fracture Definition: Complete fracture of the enamel with no visible sign of exposed dentin Diagnosis: Clinical - enamel loss is visible Percussion: not tender Mobility: normal Sensitivity: not reliable Radiographic findings: Enamel loss
Dentinal hypersensitivity is characterized by a short, sharp pain in response to stimuli. Dentinal hypersensitivity, which is more commonly seen in adults in the 20 – 40 – year old age group, has several etiological factors. Gingival recession and enamel loss both contribute to the prevalence of this condition, resulting in the exposure of dentin. Dentinal hypersensitivity is believed to occur due to the movement of fluid within the dentinal tubules occurring in response to: Tactile: Contact with
Tooth enamel is a hard mineral substance that covers your teeth. Without this special coating, your teeth will decay and erode. In fact, mineral is found inside your body, especially in your bones. This is the same chemical makeup that you can expect to find in large mammals like whales. If you read on, you’ll find that the main ingredient in mineral is hydroxyapatite, a ceramic biomaterial made of calcium phosphate. Despite the mineralized form of your teeth, you still need to protect your tooth’s
chemical dissolution of the tooth surface caused by metabolic events taking place in the biofilm (dental plaque) covering the affected area (Fejerskov, Kidd, Nyvad & Baelum, 2012). Carious lesion develops over time due to a complex interaction of bacteria acid and carbohydrate with saliva and teeth (Manton, Drummond & Kilpatrick, 2012). The host factors- teeth, microbes and diet are all interrelated in the oral cavity. The caries process is determined by the quality of tooth and saliva (important role
Tooth is composed of three hard tissues enamel, dentin and cementum .The colour of the tooth is determined by reflectance of dentin and thickness of enamel[30].As cementum is in root portion of the tooth its influence on determining the color of the tooth is not much. Tooth color is different among the different people, different teeth in same person and different areas of the same tooth[31].Tooth color is not constant and it changes due to various reasons.According to the location of the stain the
The earliest discovery of dentistry can be found 25,000 years ago in the skulls of Cro-Magnon people. Tooth decay was found in the skulls of the people displaying the beginning of the discovery of dentistry. Later on dental art among the Egyptians developed. 4,000 years before the Christian era in Egypt inhabitants of the valley of the Nile were well advanced, where civilization first took its rise. Egyptians being the oldest civilized people uncovered great amount of dental evidence. Dental evidence
Seventy percent of the US population now receives fluoridated drinking water, an industrial grade level chemical most commonly associated with the prevention of tooth decay, and in Virginia especially, 95.7% of all public water is fluoridated (CDC). I present this numbers to your concern because for something that is almost in all public drinking water, it is not informed to the average Virginia citizen, but that is not the primary issue I am addressing you for. My main matter of concern is that
leaving no gap between the tooth structure and the restoration.2 According to a study by Stockton et al., “Imperfect bonding leaves a microscopic gap that allows the infiltration of bacteria, fluids, molecules and ions between the restoration and the tooth structure, commonly referred to as micro-leakage.”2 This gap is created by way of composite shrinkage during the process of polymerization, or “from mismatches between either the coefficients of thermal expansion of the tooth and the composite or between
Teeth -Chewing on Ice Dear you, here’s the cold truth --chewing ice or ice cubes can do more harm to your pearly whites than good. At first, you may see it as something innocent as drinking water, but really it can cause microscopic fractures in your enamel or even gum injury. Some even experience having a broken teeth because of chewing ice. This is most especially true if you have just visited your dentist and have a dental work done. If you also have a brace, chewing ice will do more harm to you than
INTRODUCTION During restoration of an affected tooth, if any margins between the composite restoration and tooth of concern are open, micro-leakage can occur1. Micro-leakage is a phenomenon in dentistry resulting from imperfect bonding that allows the movement of bacteria and fluids between the restoration and tooth of interest2. When a composite restoration is placed and undergoes polymerization through curing, shrinkage occurs. Research has shown that the percent of gaps between composite restorations
off any unwanted particles and light stains. Examples of abrasives include calcium carbonate, dehydrated silica gels, hydrated aluminum oxides, magnesium carbonate, phosphate salts and silicates. Fluoride to strengthen tooth enamel and remineralize enamel in the early stages of tooth decay. Humectants to prevent water loss in the toothpaste. Examples include glycerol, propylene, glycol and sorbitol. Flavoring agents, such as saccharin and other sweeteners improve taste Thickening agents or binders
chroma in the tooth—the pigment or intensity of color is reduced. Second, whitening changes the hue, or color, or the teeth. Thirdly, whitening changed the value of the teeth. It is important to understand the natural color of teeth. Individual teeth vary in color in their thirds. The incisal third is usually the lightest because it is composed of mostly translucent enamel. The middle third is the next darkest and is closer to the color of dentin, but is modified by the translucent enamel that covers
Dental Higenetist 27. Stain at the tooth gingival margin is cause by? Chromogenic bacteria 1. What age is dental fluorosis likely to occur? It can occur at any age. overexposure of fluorid in common found in younger people 2. What is dental fluorosis also known as mottling? Teeth with permanent discoloration with white or brown streaks cause by overexposure to Fluoride. 3. What are the two types of Dental restorations ? Direct and indirect restorations 4. What is direct restorations?
Root Surface Caries Caries can affect any surface of the teeth. The most commonly seen caries are found on the crown of a tooth, above the cemento-enamel junction, it is also possible for caries to form on the root surface, below the cemento-enamel junction. Dental root caries has received a great deal of attention in the past few decades. A variety of different patients are at risk for root surface caries. Dentists use several methods of treatment. Root surface caries are also called cemental caries
Provided by numerous federal agencies, public drinking water fluoridation is an exercise that has found widespread use in the U.S as well as other countries in the world. Through the prevention of tooth decay, fluoridation has been acknowledged as one of the most momentous disease-preventive measures taken in the last century. Fluoridation proponents see this implementation as an effective, safe, and cost efficient method to bring health to the general population. Nonetheless, those who oppose these
whether fresh or salt, have varying levels of fluoride (Awofeso, 2012). Around 1945 it was discovered that communities with higher rates of naturally occurring fluoride had lower rates of tooth decay (Dean, 1938) which resulted in the addition of artificial fluoride to public water supplies. The incidence of tooth decay fell drastically in fluoridated communities as a result, leading to widespread adoption of public water fluoridation as a public health strategy. However this intervention is highly
compound. Fluoride is effective in preventing and reversing the early signs of tooth decay. Researchers have shown that there are several ways through which fluoride achieves its decay-preventive effects. It makes the tooth structure stronger, so teeth are more resistant to acid attacks. Acid is formed when the bacteria in plaque break down sugars and carbohydrates from the diet. Repeated acid attacks break down the tooth, which causes cavities. Fluoride also acts to repair areas in which acid attacks