at risk for root surface caries. Dentists use several methods of treatment. Root surface caries are also called cemental caries, cervical caries, or radicular caries. (Wilkins) Root surface caries only involves the roots of teeth. The cementum and dentin located just below the crown of the tooth is involved. No involvement of enamel is seen with root surface caries. Bone loss and corresponding gingival recession are the first symptoms to be seen in the caries process. These result in exposed root
Bonding to altered dentin Caries-affected and caries-infected dentin There are few studies that investigate the bonding characteristics to altered dentin. Most of the caries excavation methods tend to leave caries-affected and/or caries-infected dentin as a bonding substrate for adhesives. The bond strength is influenced by the caries removal method and the type of adhesive. The bond strength will be 20-50% lower in caries-affected dentin than the bond strength to sound dentin, and even lower in
history of adhesive dentistry. Currently, bond durability is one of the main research topics in adhesive dentistry. Regardless of the improvements in bonding technology, resin dentin bonds show limited durability for both etch and rinse and self-etch adhesive systems. The main problem concerning the durability of resin-dentin is the hydrolytic degradation of the two components of the hybrid layer. These are the collagen matrix and the adhesive resin [8]. Many approaches to enhance long-term bonding
are easy to handle, manipulate, repair and control’ (Dentistry today, 2008). Such mode of treatment not only involves a minimally invasive approach but, with the advent of newer adhesive systems also produces reliable bond strengths to enamel and dentin along with excellent aesthetic outcomes. Moreover, it is believed that a strong adhesion between the tooth and composite interface is necessary to withstand the contraction forces during polymerization of composite resin. Many authors (Pushpa and
Laminin 332 Laminin 332 is present in the BMZ of nearly all epithelial tissues in the human body [140]. Furthermore, laminin 332 is the main component found at the upper lamina densa/lamina lucida border at the base of the anchoring filaments [120]. Mutations in laminin 332 are linked to a condition that causes skin fragility and severe blistering, which is known as junctional epidermolysis bullosa [141-143]. Moreover, the absence of laminin 332 expression considerably disrupts the epidermal adhesion
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
Development of Dentition Humans have two dentitions in their lifetime, i.e. the primary (deciduous) and secondary (permanent). Each dentition consists of teeth with different shapes, sizes and functions. The classes of teeth developed throughout our life span are: • Incisiform (incisors) - Incisors are the pair of eight teeth directly situated in the front and center of our mouth, i.e. four in each upper and lower jaw. These single-rooted teeth are extremely important since they all have sharp edges
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 a toothbrush and other oral hygiene devices, eating utensils, periodontal and dental instruments
caption Teeth are composed of a surface enamel layer, which is whiter and semitransparent, and an underlying dentin layer, which is darker and less transparent. The colour of teeth varies among the gum, tip and central areas according to the thickness, reflectance of different colours and translucency in enamel and dentin. The colour of healthy teeth is primarily determined by the dentin and is modified by: 1. The colour of the enamel 2. The translucency of the enamel
BACKGROUND Composite restoration usage in dentistry is increasing. Because of this interest in the longevity and reliability of composite fillings also is increasing1. One problem that can occur with composite restorations is micro-leakage. This is when microgaps at the tooth-restoration interface allow fluids and bacteria into the restoration2. These gaps are formed when the material is polymerized and shrinks, which causes the material to pull away from the margins of the preporation2. Problems
CAMBRA- CURRENT STRATEGIES ON CARIES PREVENTION AND MANAGEMENT Introduction: Dental caries occurs through a complex interaction over time between acidogenic micro organisms and fermentable carbohydrate, and host factors including teeth and saliva.1 The caries process can be described as a imbalance between re and demineralization and when more minerals are lost than gained from the hard tissues over time, caries lesion occurs.2Dental caries, if allowed to progress will result in non cavitated caries
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 is visible Radiograph recommended: PA, occlusal, and eccentric exposures to r/o root fracture
molecules that are expressed, including Bmp2, Bmp4, Bmp7, Fgf4, Fgf9, Wnt10b, Slit1 and Shh. The enamel knot signals are formed at the future cusps (example: molars) Eventually, the enamel organ will form the enamel, the dental papilla will form the dentin and pulp, and the dental sac will form the supporting structures of a tooth (peridontium, cementum and the alveolar
when the acids in the soda come in contact with the tooth enamel. The acids will erode your teeth by softening the enamel. While sports drinks and fruit juices also damage enamel, they stop there. On the other hand, soda also affects the next layer, dentin, and even composite fillings. This damage will invite cavities which develop over time in people who drink soda regularly. Another acid most sodas contain is phosphoric acid. Although phosphate, which is required by your body in small amounts
at a faster rate than calcium hydroxide based materials.12 However, there are contradictory findings reported in literature about the hydration characteristics of TLC.13 The role of moisture drawn in from the pulp and dentin is also unclear. TLC shows physio- chemical bonding to dentin and is well tolerated by immortalized odontoblast cells 14. Recently, Cantekin K15 proved that the bond strength of Theracal – methacrylate based composite was significantly higher than that with silorane-based composites
Dental carries is one of the most common oral diseases in the world, and it often goes untreated due to the expense of treatment. According to the World Health Organization (WHO) 60 to 90 percent of school aged children throughout the world suffer from untreated dental carries. Ethnic minorities, the poor, the elderly, and those who are mentally and/or physically disabled are other disparities who also suffer from untreated dental caries (Alcorn & Rogo; 2012). Looking for a way to solve the epidemic
Friday, April 13th, was my last day of clinic and it was a very intense day. I completed my special need patient, an extra patient that may count as an adolescent if Ms. Jones approves it, and screened my board patient. My special need patient was MB, a 39 year old female who suffers from bipolar disorder, depression and stomach ulcers due to medications. My patient is under a physician’s care and is taking her medications. Her vitals were BP: 116/77, R: 20, P: 75, and her intraoral and extraoral
from a white perspective. The protagonist in WHITE LILACS is Rose Lee Jefferson. The antagonist in WHITE LILACS it the whole white community except Catherine Jane and Emily Frith. In WHITE LILACS the main conflict is weither the black community in Dentin, Texas will have to move to another place against their will. the secondary conflicts are: - Rose Lee had to learn to set the table right. If she did not she would be fired. - Henry was mouthing off white people. This eventu...
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 it. The cervical third in the darkest portion of the tooth because enamel in thinnest in this region, and the color of dentin is more visible. When looking at the smile as a whole, the shade of individual teeth varies between each other. The maxillary centrals are usually the lightest
to have a mixture of acids that build up inside the mouth that attacks tooth enamel and the second layer of the tooth named Dentin, and third layer Pulp. Enamel is the outer layer of the tooth. It is the hardest tissue of the human body. Dentin is harder than bone but softer than Enamel. It has apatite crystals of calcium and phosphate. Pulp is underneath the enamel and dentin. It carries blood vessels, connective tissue, and large nerves. Which can and will in fact cause tooth loss if all layers are