What are the different types of dental wear and their characteristics? 1. Attrition: Wear caused by tooth-to-tooth contact. It is common in bruxism...

What are the different types of dental wear and their characteristics?
1. Attrition: Wear caused by tooth-to-tooth contact. It is common in bruxism and can cause tooth sensitivity. The treatment is to eliminate the cause and restore the tooth.
2. Abrasion: Found in the neck of the tooth due to mechanical action, mainly brushing. Depending on the intensity, it can appear as a radiolucent image in the neck. Aesthetic treatment. It may be associated with dentin sensitivity.
3. Abfraction: Loss of dental structure associated with masticatory stress. The impacts cause detachment of the dental enamel at the height of the neck. Clinically, it is less angled than abrasion, presenting a more wedge-shaped defect. It has, in practice, a similar result to abrasion, but with different causes; the distinction between the two lies in determining the etiological factor.
4. Erosion: Loss of enamel due to acid action. Citrus fruits, wines, soft drinks. A frequent cause is gastroesophageal reflux, depending on the frequency and intensity of the reflux, which causes erosion on the lingual face of the molars. Slight depressions in the cusps are common. The treatment is done with aesthetic protection with resin, dietary guidance, increasing salivary flow, and using a straw. The enamel is dissolved.
5. Dentin resorption: Loss of dentin tissue after the person's birth. It has a radiolucent appearance.
5.1. External resorption: It starts from the outside to the inside. Linked to a series of factors, such as orthodontic treatment. All orthodontic treatment causes external resorption, the difference is the degree of resorption it will cause. It can be caused by an erupting tooth that rests on another. Associated with inflammatory processes such as tumors, cysts, and granulomas. It is a common phenomenon in a replanted tooth. This resorption is caused by osteoclast activity or by inflammatory stimulation from the pulp or periodontium, which activates osteoclasts. The treatment is to eliminate the cause, stabilizing the tooth and keeping it in place. Depending on the degree of resorption, the tooth may be lost.
5.2. Internal resorption: It starts inside the root canal. From the inside out, linked to inflammatory changes in the pulp. The resorption area grows symmetrically inside the canal. The difficulty of diagnosis is due to presenting the same radiographic image as an external resorption that occurs on the vestibular or lingual, which is a radiolucent area superimposed on the root canal. The treatment is endodontic, eliminating the irritating factors and stopping the growth.