TOOTH WEAR ATTRITION ABRASION EROSION ABFRACTION PRESENTED BY
TOOTH WEAR: ATTRITION, ABRASION, EROSION ABFRACTION PRESENTED BY LILING ZHANG
TOOTH WEAR IS THE TERM USED TO DESCRIBE THE PROGRESSIVE LOSS OF A TOOTH’S SURFACE DUE TO ACTIONS OTHER THAN THOSE WHICH CAUSE TOOTH DECAY OR DENTAL TRAUMA. Below are 4 different type of tooth wear. they usually doesn’t exist on their own. • Attrition is a type of tooth wear caused by tooth-to-tooth contact, resulting in loss of tooth tissue, usually starting at the incisal or occlusal surfaces. It is commonly seen as a normal part of aging, but excessive wearing is defined as pathological. • Abrasion is the progressive loss of hard tooth substances caused by mechanical actions other than mastication or tooth-to tooth contacts. • Abfraction is a form of non-carious tooth tissue loss that occurs along the gingival margin. It is a mechanical loss of tooth structure that is not caused by tooth decay, located along the gum line. • Erosion is irreversible loss of tooth structure due to chemical dissolution by acids not of bacterial origin.
ATTRITION • Cause: Excessive wearing can be caused by bruxism, which is clenching and grinding of the teeth. • Dental impact: If the attrition is severe, the enamel can be completely worn away leaving underlying dentin exposed, resulting in an increased risk of dental caries and dentin hypersensitivity.
ABRASION • Cause: Abrasion may arise from interaction of teeth with other objects such as toothbrushes, toothpicks, floss, and illfitting dental appliance like retainers and dentures. Apart from that, people with habits such as nail biting, chewing tobacco, lip or tongue piercing. • Dental Impact: A common symptom of dental abrasion is increased dental sensitivity due to the loss of dental enamel. As a result, pain may be felt when eating or drinking hot or cold items.
EROSION • Causes: exposure to acids, such as from acid reflux or acidic foods and drinks. Dry mouth (xerostomia), Medications (aspirin, antihistamines), and frequent vomiting from bulimia or alcoholism. • Dental impact: Certain foods (sweets) and temperatures of foods (hot or cold) may cause a twinge of pain in the early stage of enamel erosion. As the enamel erodes and more dentin is exposed, the teeth may appear yellow. The edges of teeth become more rough, irregular, and jagged as enamel erodes. Severe, painful sensitivity.
ABFRACTION: • Cause: Mechanical stress from chewing function or teeth grinding. The lesions occur gradually, making the tooth appear to vanish over time. They appear as wedge-shaped notches at the cementum-enamel junction. Chemical, biological and behavioral factors may all contribute to the cause of the lesion. • Dental Impact: Abfraction lesions will only form above the CEJ. However, it is assumed that the abfraction lesions will occur anywhere in the cervical areas of affected teeth. The dentin and cementum are less dense than tooth enamel and therefore more susceptible to sensation from thermal/mechanical sources.
PREVENTION/ DENTAL HYGIENE CARE • Reducing the frequency of drinking carbonated drinks and fruit juices with high levels of acidity. • Avoided immediately after consuming acidic drinks and foods for a period of time (at least 20 minutes). • Adopting a correct toothbrushing technique. • Hard toothbrush should be avoided. • Fluoride toothpastes also help to combat tooth wear, specifically erosive tooth wear(less abrasive fluoride toothpaste for abrasion). • Use Soft rubber or dual laminate mouth guards for bruxisum.
FOOD TO AVOID
DENTAL TREATMENT • Bonding: A tooth-colored adhesive filling material is bonded to the surface of the tooth, filling in the cavity and protecting the tooth surface from further damage. These materials are kind to the tissues, and have great potential for improving the appearance of the tooth. • Crowns and Veneers: Tooth-like restorations will strengthen and protect the tooth, as well as restoring the appearance. If more than one surface of the tooth has been badly damaged then a crown may be necessary. There are many different types available, and recent advances in dental technology have greatly improved both the physical properties and the appearance of these restorations.
Crown and Venner Bonding
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