The Dreaded Black Triangles

Dr. John Laftsidis • October 23, 2025

And how to make them go away!

“You’re looking long in the tooth” is used to describe the appearance of teeth that often occurs as we age. While the appearance is that of an elongation of teeth, the cause is quite the opposite. This condition happens as a result of gingival (gum) recession, which is caused by several different factors, all adding up to some level of periodontal disease. Genetics, inadequate oral hygiene in brushing and flossing, untreated early periodontal disease, etc., can all contribute to a chronic progression of supporting bone and gum loss. The result is the appearance of longer teeth due to a lowered or receding gum line.

 

The gum tissue between the teeth is also ultimately affected, resulting in what is referred to as “black triangles” between the teeth. The gold standard of care for periodontal disease is scaling of deposits on teeth, possible periodontal surgery, frequent follow-up periodontal maintenance, and thorough daily oral hygiene with brushing AND flossing.

 

The goal of periodontal treatment is to address bone loss that has occurred and to take measures to stop the progression of the disease and preserve the amount of supporting bone that is left. Unfortunately, this treatment does not address the esthetic consequences of periodontal bone/gum loss — dark spacing between the teeth.

 

Enter esthetic calcium hydroxylapatite or Type I and Type III collagen and biostimulator a.k.a. FDA cleared injectable filler for oral and maxillofacial defects which has been in use since 2003. As the name might imply, this treatment is simply a “filler” that only expands the gums. Studies have shown that collagen and elastin biostimulation could be taking place as well. While bone regeneration is unlikely in moderate and advanced cases of periodontitis, injectable periodontal filler can both provide dramatic esthetic results as well as improve gum health. 

 

We offer this procedure at North Branch Dental Works as a ½ to 1 hour minimally invasive, non-surgical procedure that gives immediate esthetic improvement to eliminate those dreaded dark triangles. Reserve a consultation appointment today instead of hiding your smile to conceal dark triangles.

Diagram comparing gingivitis and periodontitis, showing plaque, inflammation, bone loss, and pocket formations.
By Dr. John Laftsidis March 19, 2026
Bleeding gums are never “normal” regardless of how often or how much blood is present. Just as is the case with bleeding, for instance, as the result of a cut on a finger, nosebleed or even a bleeding stomach ulcer: bleeding indicates injury or damaged tissue. In cases other than the mouth the obvious course of action is to stop the bleeding with whatever is the appropriate course of action. So within the mouth, specifically the gums, the scenario is exactly the same in that an abnormal situation must be corrected to stop the bleeding. In the case of bleeding gums the reasons can range from mild, local inflammation (like a stuck popcorn kernel) to chronic soft tissue damage to active infection and eventually bone loss of the jaws leading to loosening and loss of teeth. Periodontitis: A “silent” disease Very frequently I hear disbelief when I find signs and symptoms of periodontal disease with the common response of “…but doctor I never have any pain in my mouth, how can I have periodontal disease.” And the answer is “Exactly!” It’s not until late stages that pain symptoms are felt as a result of loose teeth, but at that point usually over 50% of supporting bone has already been lost. Periodontal disease is a slowly progressing process of soft and hard tissue destruction without pain. In most cases the slow progression of nerve deterioration does not present with any pain. The good news is that (in most cases) this process is preventable with inexpensive and easy dental hygiene, namely daily brushing AND flossing to remove plaque! Bleeding gums and plaque: What’s the connection? Plaque is a sticky, pasty substance composed of dead epithelial cells, retained food particles, salivary minerals and lots of bacteria. The bacteria live and thrive on the yummy food particles left behind between and on the teeth. Like every other living being on earth, these bacteria produce acidic waste as a product of their digesting leftover food. This acidic waste is what activates the body’s defense systems which produce inflammation. This chronic inflammation process lies at the root of periodontal disease and is similar in several ways to chronic infection. The body, in essence, self destructs in it’s attempt to fight and destroy the bacterial waste products. Gingivitis to Periodontal Disease Although a direct cause-effect relationship between gingivitis and periodontal disease is not well established, both processes share similar symptoms and many consider gingivitis as a precursor to periodontal disease. With the gum swelling and plaque buildup that occurs in gingivitis “pockets” form at the gum-tooth junction. These pockets form shelters for bacteria to thrive and progress in depth over time. They eventually reach depths which one cannot reach with flossing and brushing. These pockets are the very foundation of periodontal disease present in almost every case. A plan to fight this disease. Yes, periodontitis is a real disease. It affects many people and is the leading cause of adult tooth loss worldwide. The most effective weapons at your disposal to fight this problem are toothbrush, floss and regular dental checkups. Inexpensive and highly effective but only if done regularly and diligently. Treatment for periodontal disease is expensive, possibly extensive and in many cases does not stop the disease but only slows it down. So the best thing to do is prevent it from even starting.
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