The Alphabet Blog: D is for Dentin

The Alphabet Blog: D is for Dentin

Dentin is the layer of tooth beneath the outer enamel layer and is important for a few reasons:

The color of dentin shows through the enamel and imparts color to the tooth.

In this photo, the dentin is the darker inner layer:

The next two pictures are great examples of what acid in plaque does as it works its way through the outer enamel into the dentin.  It turns the enamel frosty white, as acid does to glass, and turns the inner dentin dark brown. 

Dentin is flexible and helps prevent fracture of the brittle overlying enamel.

Dentin contains tubules that transmit painful stimuli like cold and sweet.  Are your teeth sensitive?  Blame it on the dentin.

Dentin allows faster spread of bacteria from the outside of the tooth to the inner nerve (pulp).

That’s dentin in a nutshell.

Love your smile,

Dr. Cook

Implant crown delivery

We recently delivered two crowns that are supported by dental implants.  Here are a few pictures of the process:

After the surgeon placed the implants, he attached a healing cap to each one.  The round, silver healing caps cover the implant for a few months after they are placed to allow bone to grow around the implants until they are well-anchored.  The implants, just like fence posts in cement, must be firmly anchored before attaching the crown and applying forces.

Here are the implant crowns in place while we check the fit.  The hole in the center is for the screw that holds the crown securely to the implant.

Once the fit is confirmed, the screws are torqued to 35 Newton/cm, covered, and the access hole restored to a natural look.  The patient can chew with these teeth immediately without restrictions.


Dr. Cook

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