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Excessive tooth wear, [12] particularly attrition, which flattens the occlusal (biting) surface, but also possibly other types of tooth wear such as abfraction, where notches form around the neck of the teeth at the gumline. [15] Tooth fractures, [11] and repeated failure of dental restorations (fillings, crowns, etc.). [3]
The lesions are harmless; no treatment is indicated beyond reassurance unless the person requests it. The most common and simple treatment is the construction of a specially made acrylic prosthesis that covers the biting surfaces of the teeth and protects the cheek, tongue, and labial mucosa (an occlusal splint). This is either employed in the ...
Therefore, it is important to understand these tooth wear processes and their interactions to determine causes of tooth surface loss. [8] Demineralization of the tooth surface due to acids can cause occlusal erosion as well as attrition. Wedge-shaped cervical lesions are commonly found in association with occlusal erosion and attrition. [9]
Sometimes it can also be found on the facial surface of the anterior tooth. [3] The term 'talon cusp' refers to the same condition as dens evaginatus; however, talon cusp is more specifically the manifestation of dens evaginatus on the anterior teeth. Talon cusp can be simply defined as hyperplasia of the cingulum of an anterior tooth.
Abfraction is a form of non-carious tooth tissue loss that occurs along the gingival margin. [2] In other words, abfraction is a mechanical loss of tooth structure that is not caused by tooth decay, located along the gum line. There is theoretical evidence to support the concept of abfraction, but little experimental evidence exists. [3]
An open bite malocclusion is when the upper teeth don't overlap the lower teeth. When this malocclusion occurs at the front teeth it is known as anterior open bite. An open bite is difficult to treat due to multifactorial causes, with relapse being a major concern. This is particularly so for an anterior open bite. [58]
Biting your nails is no picnic for your teeth, either. "Constant biting can lead to poor dental occlusion," says Richard Scher, M.D., an expert in nail disorders, "so the biter's teeth shift out ...
Occlusal trauma; Secondary occlusal trauma on X-ray film displays two lone-standing mandibular teeth, the lower left first premolar and canine. As the remnants of a once full complement of 16 lower teeth, these two teeth have been alone in opposing the forces associated with mastication for some time, as can be evidenced by the widened PDL surrounding the premolar.