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The aetiology of dental abrasion can be due to a single stimulus or, as in most cases, multi-factorial. [6] The most common cause of dental abrasion is the combination of mechanical and chemical wear. Tooth brushing is the most common cause of dental abrasion, which is found to develop along the gingival margin, due to vigorous brushing in this ...
Tooth wear is predominantly the result of a combination of three processes; attrition, abrasion and erosion. [3] These forms of tooth wear can further lead to a condition known as abfraction , [ 3 ] where by tooth tissue is 'fractured' due to stress lesions caused by extrinsic forces on the enamel.
Acid erosion is a type of tooth wear.It is defined as the irreversible loss of tooth structure due to chemical dissolution by acids not of bacterial origin. [1] Dental erosion is the most common chronic condition of children ages 5–17, [2] although it is only relatively recently that it has been recognised as a dental health problem. [3]
Erosion softens the dental hard tissues making them more susceptible to attrition. Thus, if erosion and bruxism both exist, surface loss due to attrition is faster. Severe attrition in young patients is usually associated with erosive factors in their diets. [7] The different physiological processes of tooth wear (abrasion, attrition and ...
This article was the first to establish abfraction as a new form of lesion, differing from abrasion, attrition, and erosion. [2] Tooth tissue is gradually weakened causing tissue loss through fracture and chipping or successively worn away leaving a non-carious lesion on the tooth surface.
Non-carious cervical lesions on an incisor belonging to Australopithecus africanus. Arrows show the location of the lesions. Non-carious cervical lesions (NCCLs) are a group of lesions that are characterised by a loss of hard dental tissue at the cementoenamel junction (CEJ) region at the neck of the tooth, without the action of microorganisms or inflammatory processes. [1]
Dental crowns, tooth extraction, gum surgery Resorption of the root of the tooth , or root resorption , is the progressive loss of dentin and cementum by the action of odontoclasts . [ 4 ] Root resorption is a normal physiological process that occurs in the exfoliation of the primary dentition .
It is a likely outcome of untreated dental caries (tooth decay), and in such cases it can be considered a sequela in the natural history of tooth decay, irreversible pulpitis and pulpal necrosis. Other causes can include occlusal trauma due to 'high spots' after restoration work, extrusion from the tooth of root filling material, or bacterial ...
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