A complete denture patient is having difficulty in swallowing is due to
**Core Concept**
The patient's difficulty in swallowing is likely due to impaired coordination between the oral and pharyngeal phases of swallowing, which can be caused by a denture that is not properly fitted or is causing irritation to the oral mucosa.
**Why the Correct Answer is Right**
The correct answer is related to the concept of denture-induced dysphagia, which occurs when a denture interferes with the normal swallowing mechanism. The denture can cause irritation to the oral mucosa, leading to inflammation and fibrosis, which can impair the coordination between the oral and pharyngeal phases of swallowing. This can result in difficulty in swallowing, or dysphagia.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not directly relate to the swallowing mechanism. While a sore throat can be a symptom of various conditions, it is not the primary cause of dysphagia in a complete denture patient.
**Option B:** This option is incorrect because it is not a direct consequence of wearing a complete denture. While a dry mouth can be a side effect of certain medications, it is not a common cause of dysphagia in denture patients.
**Option C:** This option is incorrect because it is not a typical cause of dysphagia in a complete denture patient. While a foreign body in the throat can cause difficulty in swallowing, it is not a common issue in denture patients who are otherwise healthy.
**Clinical Pearl / High-Yield Fact**
To prevent denture-induced dysphagia, dentures should be properly fitted and adjusted to ensure a comfortable and smooth fit. Regular follow-up appointments with a dentist or prosthodontist can help to identify and address any issues that may arise.
**Correct Answer:** D.