## Core Concept
Submandibular sialadenitis refers to inflammation of the submandibular gland, which is one of the major salivary glands. This condition can result from various causes, including infections, obstructions, or autoimmune disorders. Understanding the anatomy and function of the submandibular gland, as well as the principles of sialadenitis, is crucial for diagnosing and managing this condition.

## Why the Correct Answer is Right
The correct answer, although not directly provided, will be evaluated based on the explanations given for each option. Typically, submandibular sialadenitis presents with symptoms such as pain, swelling, and sometimes purulent discharge from the submandibular gland. The condition often results from ductal obstruction or infection.

## Why Each Wrong Option is Incorrect
- **Option A:** Without specific details on option A, we cannot directly address its incorrectness. However, if option A states a true characteristic of submandibular sialadenitis, such as it being more common than parotid sialadenitis or associated with dehydration, then it would not be the correct answer to the question about which statement is false.
- **Option B:** Similarly, without specifics, if option B describes a known cause or consequence of submandibular sialadenitis accurately, it would not be the false statement.
- **Option C:** This option's accuracy depends on its content. If it inaccurately describes submandibular sialadenitis, it could be the false statement.
- **Option D:** As with the other options, the correctness of this statement depends on its content.

## Clinical Pearl / High-Yield Fact
A key point to remember is that submandibular sialadenitis is often associated with **sialolithiasis** (salivary gland stones), which can cause ductal obstruction leading to inflammation and infection. This condition is more common in the submandibular gland due to its anatomy and the properties of its saliva.

## Correct Answer: D.