Thick vs. Thin Gum (Gingival Biotype, Gingival Phenotype):
These terms refer to the thickness of the gum. It does not refer to a healthy vs. non-healthy gum, but it only describes what type of gingiva (gum) Mother Nature has given us.
Having said that it is important to realize how the thickness of gums can impact our oral health, teeth or dental implants.
A simple way to define it, THIN gum is bad and THICK is good. Simply because Thin tissue can be stretched causing recession around teeth and dental implants, while a THICK gum is firm, bound to the underlying bone and protects teeth and dental implants.
Most people with Thin gum, are at high risk to get gum recession. 78% of sites with untreated gum recessions, even with good oral hygiene will get worse through time. Gum recession is not related to how good your oral hygiene is. The thinner the gum the easier it gets traumatized while brushing or eating and then it recedes. In certain cases, the damage is permanent and repair to ideal is impossible. (Photo above compares the gums of a 52 year old on the R side vs. the gums of a 24 year old on the L side.)
Even during smiling, eating and talking the facial muscles will stretch the gum causing recession, something that you might not even be aware of. Roots are not covered with enamel and hence they are softer. When the roots are exposed, they wear much faster during normal daily brushing. This makes you get cavities easier on exposed softer root surfaces, when compared to hard enamel covering the crown.
When doing any restorations (Crowns, Veneers or fillings), periodontal surgery, surgical placement of a dental implant etc. thickness of the gum influences the healing, and the long term outcome. The ticker the gums are, the more they resists any irritation and the healthier they remain long term.
What can be done if one has THIN gums.
Gums can be grafted to change its appearance. Different sources for Gum Grafts are from patients own mouth (usually palate) or from a tissue bank (cadaver). For those who do not like the idea of taking tissue from their palate, Cadaver soft tissue is a better option since it eliminates the donor site on the palate.
Gum Graft can be used to cover an exposed part of the root, instead of using white filling or bondings (Bondings needs to be replaced frequently, depending how well it is done in the first place)
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Gum Graft used to covered the exposed and discolored part of the tooth (Canine/ single site).
Gum Grafts can also be done in a single visit to build up thick tissue and cover exposed roots of multiple teeth. By thickening the soft tissue the risk of recession is minimized, saving you several fillings, teeth sensitivity, cavities, etc. in the future. The case presented below is an example.
Root coverage of multiple teeth.
There are times gum recession happens despite the fact that there is a relatively thick gum. These are instances that other anatomical factors adversely influence the health of the gum. Below is an example. This recession can reasonably be improved with Gum Graft. The sooner you treat the site the more predictable the root coverage will be.
Gum Grafts before orthodontic treatment in people with thin gums is a common practice and will help your teeth stay healthy and beautiful .
Root Exposure Due to Gingival (Gum) recession.
Gum Grafts can also be used to PREVENT further recession. It is not uncommon to perform gum (gingival) graft before orthodontic treatment, because teeth movement accelerate recession. If you are thinking of getting braces or invisalign, have your gums checked to make sure you won’t worsen the situation.
Babak Noohi, DDS, MS
your Capitol Hill Prosthodontist.
Dear Dr. Noohi. I had Alloderm grafting done over one year ago and root coverage was not achieved like I had expected. I am especially concerned about a couple of areas where the root is still exposed. Can KT be added even if the skin is thin? My periodontist tells me it is not necessary because the tissue is thicker and stable but each time I have my teeth cleaned my dentist and hygienist express concern. Thank you.
Dear Kristen
Thank you for your interest in my website and looking into it. You are asking a great question and my simple answer Yes. I have not seen you and i really don’t know your case well, so whatever i tell you is hypothetical, i want you to understand.
What your periodontist had told you, is correct. when Alloderm is used, you can expect a thicker tissue, even though on the surface you do not see any keratinized tissue. Some dentist challenge that argument, i shall say. So clinical presentation does matter and not all cases are the same.
I have a few cases documented where Alloderm had been used and it was a complete failure. That does not mean Alloderm graft is not a successful procedure, the skills of the dentist who is doing it also matters quite a bit. most of my failed cases were done by Periodontists.
there is a classification of gingival defect, which i cannot explain to you here, but where there is not keratinized tissue and there is recessions, my choice is always, Free Gingival Graft or Connective Graft. both of which are harvested from palate. Even though they are extremely successful procedures, telling patients i am going to take it from your palate may be scary. But i always give my patients a “palatal guard” to cover the wound, so it is not sore and they rarely have discomfort beyond 3-4 days.
i have used Alloderm for multiple sites, but i always carefully pick and select cases, because i don’t want to have failures.
If i use gum graft from palate i give my patients 100% guarantee that it will be successful.
I hope i could answer your question.
Thank you again for your interest.