Final answer:
Attrition on teeth #23 through #26 is a condition where those teeth have experienced wearing down or loss of tooth structure. It may have started about 5 years ago due to certain habits or conditions. The client should consult a dentist for treatment.
Step-by-step explanation:
The attrition on teeth #23 through #26 is a condition where those teeth have experienced wearing down or loss of tooth structure. This can be caused by various factors such as grinding, clenching, or misalignment of the teeth. In the case of the client, the attrition may have started about 5 years ago due to certain habits or conditions that put excessive pressure on those specific teeth. It is important for the client to consult a dentist to address the attrition and prevent further damage.