Why Do My New Dental Crowns Cause Sensitivity and Mouth Sores?
My new dental crowns have caused more oral problems that make me regret replacing my old crowns. I have teeth sensitivity, excess saliva, mouth sores, bitter taste, bad breath, and chapped lips. My dentist has offered to readjust my bite, but that’s not my complaint. Will I need new crowns? – Thanks. TJ from Boston
TJ,
We understand your concerns and frustration.
What Symptoms Can You Expect with New Dental Crowns?
Well-crafted, properly placed dental crowns should not create lingering symptoms. Although you may feel temporary tooth sensitivity after a procedure, your crowns should not be noticeable—without discomfort or undesirable oral complications.
Your symptoms require a thorough assessment to determine whether they relate to your new dental crowns or underlying medical conditions. A professional evaluation is essential for accurate diagnosis and effective management.
Below are considerations for your symptoms:
Oral sores
Stress can be a contributing factor, but a dermatological evaluation may be required to rule out inflammatory skin conditions.

Bitter taste and bad breath
- Bacteria and salivary buildup m
- Systemic factors such as medications, supplements, respiratory infections, and GERD should also be investigated
Teeth sensitivity
- Post-operative sensitivity following crown preparation is typical.
- Prolonged sensitivity beyond eight weeks necessitates a dental review.
Diligent oral hygiene, including gums, teeth, and tongue, can minimize bitter taste and halitosis. However, we recommend a second opinion and a comprehensive dental examination for multiple oral tissue concerns. A skilled cosmetic dentist can determine whether crown adjustments or new crowns will resolve your symptoms.
Dr. Thaddeus Michalski, a Rocky Hill, Connecticut dentist, sponsors this post. Find out how he strives to provide some of the best dentistry in Rocky Hill.