Coast Dental Blog
Fast Facts - Perio Edition Episode 19

Fast Facts

Fast Facts: Perio Edition “Alveolar Bone Proper”
A Message for Coast Dental Hygienists and Doctors:
Today is March 8th, 2021. It is also International Women’s Day! It might be shocking for many out there to think that the first celebrated Women’s Day actually happened over 100 years ago in 1909! Much has improved since then but we definitely have a long way to go in our outward and inward support for the women in this world.
We are proud of the women here at Coast Dental and appreciate the many accomplishments and contributions they have made to the company and society. We celebrate their leadership at all levels and will continue to provide opportunities for advancement. To learn more about this special day simply click here.
Andrew Johnston, RDH, BSBM
Director of Hygiene Coast Dental
[Andrew Johnston, RDH]
Welcome back,  everyone. You are listening to another episode of Fast Facts- Perio Edition brought to you by A Tale of Two Hygienists in partnership with DentistRX. And now, please welcome your host, Katrina Sanders.
[Katrina Sanders, RDH]
Hello and welcome to Fast Facts: Perio Edition. This week, we are continuing the anatomy conversation, and this time we are moving into discussing the alveolar process. The next two episodes, we'll talk about the different parts of the alveolar process, but to begin, we understand the alveolar process itself constitutes the part of the maxilla and the mandible that form as well as support the sockets of the teeth, also known as the alveoli. Periosteum is the term used for the connective tissue that covers kind of that outer portion of the alveolar process, and the endosteum covers the inner surface of the alveolar process.
Now, I mentioned that there are two parts of the alveolar process, and you guys this is going to take us back to hygiene school, but the two parts of the alveolar process are the alveolar bone proper and that's what we're going to talk about this week. Next week, we're going to talk about the supporting bone, and it's important for us to understand the differences between the two.
So this week, we're going to talk about alveolar bone proper. It is also called the cribriform plate. When's the last time you heard that term? Holy cats, but this type of bone is hard, dense, compact bone, and it's the bone that lines that tooth socket or the alveolus, and it's contained within the actual alveolar process. Radiographically we call this the lamina dura and that's what we're looking for radiographically, when we're trying to approximate that beautiful white band of bone in the interproximal space.
The bone where those sharpies fibers are going to stop is called Bundle Bone and that Bundle Bone is found kind of in that inner lining of the tooth socket or in that inner lining of the alveolar bone proper. The Cribriform Plates themselves are thinner plates of bone that have perforations and those perforations are really important because those little openings are openings that carry blood vessels and nerve endings and of course, lymphatic support from the bone and supplies a kind of a nutritional source directly to the periodontal ligament fibers.
That, my friends, is what we call the alveolar bone proper, the cribriform plate and of course, the lamina dura. Stay tuned next week as we talk about the supporting bone, the second portion to the alveolar process and the important role that the supporting bone itself plays in supporting our tooth structure in success.
Tune in next week, and I look forward to seeing you then.
This has been another episode of Fast Facts - Perio Edition with Katrina Sanders, RDH. Please feel free to reach me on Instagram @thedentalwinegenist or on my website Cheers.
[Andrew Johnston, RDH]
Thank you for listening to another episode of Fast Facts - Perio Edition, brought to you in part by DentistRX makers of the InteliSonic line of power brushes. Find out more by visiting their website at We'll see you next week for another Fast Fact!

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