Exposed Tooth Roots After New Dental Bridge Installation: What to Do? - Dentistry

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The new dental bridge has just been placed, and the tooth roots are exposed?


Hello Doctor: I just had a three-unit full ceramic bridge placed, and I've noticed that one of the abutment teeth has an uncovered root portion (the outer side is fully covered, but the inner side has the root exposed).
Additionally, there is a noticeable gap in the gingival area, and when my tongue touches it, it feels like air and water can get in.
The doctor explained that this approach is somewhat similar to a hygienic bridge concept.
Is this true? I would like to ask if a gap that is too large from the beginning increases the risk of food debris getting trapped.
Should I request the doctor to modify it, or does this not increase the risk of cavities? Currently, it is only temporarily bonded for trial purposes and has not been permanently cemented yet.

Ms. Chen, 40~49 year old female. Ask Date: 2022/02/02

Dr. Zeng Guanghui reply Dentistry


The advantage of having healthy gums is that they are easier to keep clean.
However, if you feel that your gaps between teeth are too large, it is advisable to discuss any concerns with your dentist to explore better treatment options.
Dr.
Tseng Guang-Hui, Department of Dentistry, Nantou Hospital.

Reply Date: 2022/02/02

More Info


When you have a dental bridge installed and notice that a portion of the tooth root is exposed, it raises several important concerns regarding the health and longevity of the dental work. The situation you described, where the outer side of the bridge is fully covered but the inner side exposes the tooth root, can indeed lead to complications if not addressed properly.

Firstly, the concept of a "hygienic bridge" that your dentist mentioned refers to a design that allows for easier cleaning around the bridge. However, if the gap between the bridge and the gum is too large, it can create a space where food particles can accumulate, leading to plaque buildup and increasing the risk of gum disease and cavities. This is particularly concerning because exposed tooth roots are more susceptible to decay and sensitivity.
In terms of whether this situation requires immediate action, it is advisable to consult with your dentist as soon as possible. If the gap is significant enough to allow food and bacteria to enter, it could indeed necessitate a modification of the bridge. The risk of developing cavities or periodontal issues increases with poor sealing and inadequate coverage of the tooth structure.
Moreover, the discomfort you experience when your tongue touches the exposed area could indicate that the bridge is not fitting properly. This discomfort may also suggest that the bridge is not providing adequate support, which could lead to further complications down the line, such as the bridge failing or the underlying teeth becoming compromised.

If the bridge is still temporarily cemented, this is an opportune time to address these issues before a permanent cementation is applied. Permanent cementation would make it more challenging to modify or replace the bridge if problems arise later.
In summary, while the idea of a hygienic bridge is valid, it should not come at the expense of proper coverage and fit. The gap you described could indeed increase the risk of food trapping, leading to potential decay and gum issues. Therefore, it is crucial to have a thorough discussion with your dentist about the necessity of modifying the bridge to ensure it is both hygienic and functional. This proactive approach will help safeguard your oral health and the integrity of the dental work in the long run.

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