Can speech pathology aid in the treatment of dysphagia?

Yes. Most speech pathologists are also trained in the evaluation and treatment of swallowing disorders.
SP Therapy: Yes. Speech pathology will not aid dysphagia, but treating a speech pathology problem can help treat dysphagia. Depending on the cause of the dysphagia, speech pathology treatment/therapy can aid in resolving dysphagia. For example, some speech pathology exercises re-train the muscles for both speech and swallowing.