Is It Normal for a Cavity Filling to Alter the Shape of Your Molar?

Molar filling

It seems that the molar has four small corners around it, but after the dental filling, one of the corners appears to be flattened.
Is this a concern?

Mr. Lai, 10~19 year old female. Ask Date: 2016/03/11

Dr. Zeng Guanghui reply Dentistry

If the cavity in the molar is located between the four cusps on the occlusal surface, and after filling it feels like the four cusps are flattened, but if it feels high when biting down, you should return to the dentist for a follow-up examination.

Reply Date: 2016/03/11

More Info

When it comes to dental fillings, particularly for molars, it is not uncommon for the shape of the tooth to change after the procedure. Dental fillings are designed to restore the function and integrity of a tooth that has been compromised by decay or damage. However, the process of filling a cavity can sometimes result in alterations to the tooth's original shape, especially if the decay was extensive or if the filling material does not perfectly mimic the natural contours of the tooth.

In your case, you mentioned that after the filling, one of the corners of your molar appears to be flattened. This can happen for several reasons. First, the dentist may have needed to remove more of the tooth structure than anticipated to ensure that all decay was eliminated. This can lead to a change in the tooth's shape, particularly if the filling is not shaped to match the original contours of the tooth.

Another possibility is that the filling material used may not have the same physical properties as the natural tooth structure. For example, some filling materials can be more malleable or less durable than the enamel and dentin of the tooth. If the filling was not properly contoured or polished, it could lead to a flat appearance in certain areas.

It's also important to consider the functional aspect of the filling. The primary goal of a dental filling is to restore the tooth's ability to chew and function properly. If the filling feels comfortable when you bite down and does not cause any pain or discomfort, it is likely that the dentist has done a good job in restoring the tooth's function, even if the shape appears slightly altered.

However, if you are experiencing any discomfort, pain, or difficulty chewing, it is essential to follow up with your dentist. They can evaluate the filling and make any necessary adjustments. Sometimes, a simple reshaping or polishing of the filling can restore the proper contours and improve the overall feel of the tooth.

In summary, while it is normal for a cavity filling to alter the shape of a molar to some extent, it is crucial to ensure that the tooth remains functional and comfortable. If you have any concerns about the appearance or function of your filled tooth, do not hesitate to reach out to your dentist for further evaluation and peace of mind. Regular dental check-ups are also essential to monitor the condition of your fillings and overall dental health.

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