Concerns About Ceramic Dental Crowns: Why Were My Healthy Teeth Filed? - Dentistry

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Issues with Ceramic Fixed Dentures


Hello Doctor: Two days ago, I went to the clinic to get ceramic fixed dentures for my two front teeth and one canine tooth, a total of three.
I had already had impressions taken before.
When the clinic placed the ceramic front teeth, they didn't fit properly, so they ground down the dentures.
However, they also ground down my three lower front teeth.
My lower front teeth were already shorter and thinner, and after they finished, I looked in the mirror and saw that my lower front teeth had been shortened, which made me very unhappy.
Although there was some adjustment, I recall that when I had fixed dentures for my molars, they didn't grind down my normal teeth.
Now, with my lower front teeth ground down, I can't even fit dental floss properly between them, and the gums are higher, making that tooth feel even shorter.
Currently, the color of the three ceramic dentures does not match my original tooth color, and they will need to be color-matched and adjusted before placement.
The two front teeth will be secured with a double adhesive, and the canine will be secured with a single adhesive.
Why did they grind down the crowns of my three normal lower teeth? Grinding down healthy teeth is damaging and cannot be reversed.
Shouldn't the ill-fitting ceramic dentures be returned to the manufacturer for remaking instead of grinding down my normal teeth?

A-Hong, 40~49 year old female. Ask Date: 2023/04/23

Dr. Lin Jiayong reply Dentistry


Hello: Reducing the opposing tooth is one of the treatment options for adjusting occlusal height.
However, it is recommended to obtain the patient's consent before proceeding with the adjustment.
If occlusal adjustment is not performed at this stage, the opposing tooth will also be worn down by the ceramic prosthesis once it is permanently placed (ceramic is harder than tooth enamel), which may further complicate the patient's occlusal adaptation issues.

Reply Date: 2023/04/23

More Info


When it comes to dental crowns, particularly ceramic ones, there are several important factors to consider, especially when it involves the alteration of healthy teeth. Your concerns about having your lower front teeth filed down during the fitting of your ceramic crowns are valid and warrant a thorough explanation.

Firstly, it’s essential to understand that dental crowns are designed to restore the function and aesthetics of damaged or decayed teeth. However, the process of fitting these crowns can sometimes involve modifying adjacent healthy teeth to ensure a proper bite and alignment. This is often referred to as "occlusal adjustment." The goal is to create a harmonious relationship between the upper and lower teeth when they come together, which is crucial for effective chewing and overall oral health.

In your case, it seems that the dentist may have filed down your lower front teeth to achieve a better fit for the newly placed crowns. This can happen if the crowns are slightly too tall or if there is a misalignment that could lead to an improper bite. While this adjustment is sometimes necessary, it can understandably be distressing, especially if it results in your natural teeth being altered. Healthy teeth should ideally be preserved as much as possible, and any modifications should be carefully considered and discussed with the patient beforehand.

Regarding your concern about the color mismatch of the crowns, this is another common issue that can arise. The shade of ceramic crowns can vary based on the materials used and the lighting conditions during the color matching process. If the crowns do not match the natural teeth, it can lead to aesthetic concerns. In such cases, it is advisable to communicate this issue with your dentist. They may need to adjust the color of the crowns or even remake them to ensure a better match with your natural teeth.

As for the issue of dental floss not fitting properly between your teeth after the crowns were placed, this could be a result of the adjustments made to your natural teeth or the crowns themselves. Proper spacing is crucial for maintaining oral hygiene, as tight contacts can lead to food impaction and increase the risk of gum disease. If flossing is difficult, it’s important to bring this up with your dentist, as they may need to refine the contacts between the teeth and crowns to ensure that floss can pass through easily.

In summary, while adjustments to healthy teeth can sometimes be necessary for the successful placement of dental crowns, it is crucial that these decisions are made with the patient's consent and understanding. If you feel uncomfortable with the changes made to your teeth, it is important to discuss your concerns with your dentist. They should be able to explain the rationale behind their decisions and offer solutions to address any issues you are experiencing, such as color mismatches or difficulties with flossing. Remember, your comfort and satisfaction with your dental treatment are paramount, and open communication with your dental care provider is key to achieving the best outcomes.

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