Which one of the following oral conditions may be seen in a patient who suffers from gastric reflux?

Gastric reflux, also known as gastroesophageal reflux disease (GERD), is a condition where stomach contents, including acid, flow back into the esophagus and can reach the oral cavity. This exposure to stomach acid can lead to the demineralization and wearing away of tooth enamel, a condition known as erosion. Erosion occurs specifically because the acidic content can dissolve the mineral structure of the teeth, leading to a loss of tooth structure over time. This is why erosion is identified as a condition that may be seen in patients suffering from gastric reflux.

In comparison, attrition refers to the wearing down of teeth due to grinding or clenching, glossitis is an inflammation of the tongue with various causes, and xerostomia describes dry mouth resulting from reduced saliva production, which is not a direct consequence of gastric reflux. Each of these conditions has different etiologies and implications, but erosion's direct link to acid exposure makes it the most relevant in the context of gastric reflux.