What finding is least likely to be seen in a patient with Sjögren's syndrome?

In a patient with Sjögren's syndrome, the hallmark feature is the autoimmune damage to the salivary and lacrimal glands, leading to reduced saliva production known as xerostomia (dry mouth). Given this condition, the presence of copious saliva is highly unlikely. Instead, patients typically present with dry mouth, which can contribute to various dental issues, including increased risk for cavities and dental decay.

The other findings, such as a high caries rate, inflamed gingivae, and missing teeth, are associated with the complications of dry mouth. Reduced saliva can lead to difficulty in clearing food particles and neutralizing acids in the oral cavity, which can contribute to a higher incidence of dental caries. Additionally, the lack of saliva serves as a protective factor for periodontal health, making patients more susceptible to gingival inflammation and potentially tooth loss due to periodontal disease.