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Dental Implants Specialists New York New Jersey NY, NJ, Manhattan, NYC, Nutley, Long Island, Queens


Sinus Expansion Due to Missing Teeth

One of the consequences of losing top teeth, is that the sinus cavity will expand, causing several further problems, if not treated early. Let's take a look at the progression of sinus expansion after upper tooth loss:

All teeth are present, Sinus is protected

The presence of teeth keeps the maxillary sinus in place.

Missing teeth

Missing top teeth gives the sinus (which contains slight pressure) the opportunity to expand.

Over time, the Sinus expands

The maxillary sinus expands into the edentulous area, subsequently causing bone atrophy.

Continued pressure & forces cause stress

The expanding sinus destroys surrounding bone. Bottom teeth continue to erupt and traumatize soft tissue.

Cross Section view of sinus expansion

In this cross-section view, we can see bone loss from two different directions. Due to the sinus expansion, atrophy from both the tooth side and the sinus side sometimes leave only a paper thin sheet of bone between the maxilary sinus and the inside of the mouth.

Sinus expansion due to tooth loss sometimes leaves only a paper thin sheet of bone between the sinus and the inside of the mouthSinus expansion due to tooth loss sometimes leaves only a paper thin sheet of bone between the sinus and the inside of the mouth
Sinus expansion due to tooth loss stage 1
Sinus expansion due to tooth loss stage 2
Sinus expansion due to tooth loss stage 3

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