I think my denture is too short because it doesn’t extend back far enough. When I eat, I can feel my gums where the wisdom teeth were. What should a dentist do about this? My dentist seems not to understand the issue when I describe it. I want to get a second opinion. Can you tell me what options another dentist might recommend? Thanks. Amy J from NJ
Amy,
Some discomfort is expected with removable dentures, especially early on. Still, persistent soreness may indicate design issues that a dentist can address.
How Far Should a Lower Denture Extend?
Regular impression tray (upper photo)
Impression tray for lower teeth (lower photo)
A properly designed lower denture usually extends beyond the retromolar pad, which is past the former wisdom tooth area. Covering the retromolar pad provides a stable foundation. However, the goal is to avoid contact between the upper denture and the teeth during function.
What Should Happen During the First Dental Impression?
The preliminary dental impression sets the foundation for everything that follows. Dentists should use a stock tray designed for lower dentures, which extends farther than a standard tray.
To capture the full functional space, the dentist should guide soft tissue movement during the impression process.
- Denture trays have posterior extensions designed to register the retromolar pad.
- Recording more of the lower jaw generally improves denture stability and control.
How to Correct a Denture that Extends Too Far Back
Correcting a denture that extends too far back requires new impressions and additional lab steps. There may be factors unique to your anatomy that influenced the original design.
If you haven’t done so already, explain your dissatisfaction to your current dentist and that you want another dentist’s opinion. Your dentist may be willing to discuss giving you a partial refund.
The Monroe, Louisiana, dentists at Bayou Dental Group sponsor this post. Please read how Dr. Finley and his team strive to offer some of the best dental care in Monroe.
