excessive relining of denture.. old.pt.come with set of compelete denture with tight denture in morning and become loose later in aday what is the cause

old.pt.come with set of compelete denture with tight denture in morning and become loose later in aday what is the cause:

• A. lack of posterior palatal seal.
• B. deflecting of occlusion.
• C. excessive relining of denture.
• D. inelasticity of cheek.

The most likely cause of a complete denture becoming tight in the morning and loose later in the day in an older patient is: A. Lack of posterior palatal seal.

Here's why the other options are less likely:

B. Deflecting of occlusion:

This could cause discomfort or instability, but not necessarily tightness followed by looseness.

C. Excessive relining of denture:

This would likely result in a loose denture from the start, not tightness initially.

D. Inelasticity of cheek:

While muscle tone can affect denture retention, it's not the most common cause of the specific pattern of tightness followed by looseness.

Explanation for A:

• The posterior palatal seal is crucial for denture stability, especially in older patients with decreased muscle tone.
• Overnight, tissues tend to swell due to fluid accumulation and gravity. This swelling can initially compress the denture against the palate, creating a tight feeling.
• During the day, as the tissues drain and return to their normal size, the lack of a proper posterior palatal seal can allow the denture to move around and become loose.

Additional factors to consider:

• Oral dryness can also contribute to denture looseness later in the day.
• Underlying bone loss or changes in jawbone shape can affect denture fit over time.

Recommendations:

• Consult a dentist to assess the denture fit and identify the specific cause of the problem.
• Relining the denture with a material that provides a better posterior palatal seal might be necessary.
• Using denture adhesives can offer temporary relief.