Which one of the following is the term used to describe non-carious tooth tissue loss caused by bruxism?

The term used to describe non-carious tooth tissue loss caused by bruxism is attrition. This condition specifically refers to the wear and tear of tooth structure resulting from grinding or clenching of teeth, commonly associated with bruxism. During this process, the enamel and dentin can become smoothened and eventually worn down, leading to changes in tooth morphology.

In contrast, abfraction refers to the loss of tooth structure at the cervical area due to biomechanical loading forces, while abrasion indicates the loss of tooth material caused by external factors, such as aggressive brushing or the use of certain dental products. Erosion involves the loss of tooth structure due to chemical processes, often from acidic foods or beverages, rather than mechanical wear. Hence, attrition is the most appropriate term to describe the consequences of bruxism on teeth, as it directly correlates with the grinding action that leads to the gradual wear of the tooth surface.