Posts for: February, 2018
What do young saber tooth tigers, which have been extinct about 10,000 years, have in common with human kids today? At first glance, not a lot. Smilodon fatalis, the big cat of North America, reached adulthood at around age three and weighed up to 600 pounds. But these ice-age mammals are probably best known for their dagger-like canine teeth, which (as shown by many well-preserved skeletons) grew up to 7 inches long. And that’s where the comparison between kids and kitties gets interesting.
The toothy felines had primary (baby) teeth and adult teeth, which developed in a similar way to human dentition. The primary teeth came in first, persisted during the young cat’s development, and shared space in the mouth as the adult teeth were erupting (growing in) — with one big difference. According to a recent study reported in the academic journal PLOS ONE, those colossal canines grew at an astonishing rate: up to 6 millimeters per month! By comparison, human primary teeth emerge from the gums at around 0.7mm per month, while permanent teeth may grow up to 2mm per month.
It’s understandable why those tiger teeth developed so rapidly: Life in the Ice Age was hard, and predators needed every advantage just to stay alive. But while human baby teeth take longer to develop (and to go away), they, too, are vitally important.Â For one thing, the primary teeth let kids bite, chew, speak (and smile) properly, until they are replaced by adult teeth — a process that isn’t usually finished until a child reaches the age of 12-13. So those “baby” teeth allow kids to have good nutrition — and positive social interactions — for a significant part of childhood!
There’s another important thing primary teeth do before they’re gone: They help ensure that the succeeding teeth come in properly, by holding a space in the jaw that will later be filled by a permanent tooth. If baby teeth are lost prematurely, those spaces can close up, resulting in permanent teeth that emerge too close together, or in the wrong places. This condition, called malocclusion (bad bite), can usually be corrected by orthodontics. But it’s better to avoid the inconvenience (and cost) of braces, if possible.
That’s why it’s so important to take care of your child’s baby teeth. Even though they won’t be around forever, they have a vital role to play right now. So be sure proper attention is paid to your child’s oral hygiene: That means avoiding sugar, and remembering to brush and floss every day. And be sure to come in regularly for routine exams, cleanings, and needed care. It’s the best way to keep those little teeth from “going extinct” too soon!
If you have questions or concerns about your child’s baby teeth, please call our office to schedule a consultation. You can read more in the Dear Doctor magazine articles “Importance of Baby Teeth” and “Early Loss of Baby Teeth.”
There are usually two moments when primary (“baby”) teeth generate excitement in your family: when you first notice them in your child’s mouth, and when they come out (and are headed for a rendezvous with the “tooth fairy”!).
Between these two moments, you might not give them much thought. But you should—although primary teeth don’t last long, they play a pivotal role in the replacing permanent teeth’s long-term health.
This is because a primary tooth is a kind of guide for the permanent one under development in the gums. It serves first as a “space saver,” preventing nearby teeth from drifting into where the permanent tooth would properly erupt; and, it provides a pathway for the permanent tooth to travel during eruption. If it’s lost prematurely (from injury or, more likely, disease) the permanent tooth may erupt out of position because the other teeth have crowded the space.
That’s why we try to make every reasonable effort to save a problem primary tooth. If decay, for example, has advanced deep within the tooth pulp, we may perform a modified root canal treatment to remove the diseased tissue and seal the remaining pulp from further infection. In some circumstances we may cap the tooth with a stainless steel crown (or possibly a white crown alternative) to protect the remaining structure of the tooth.
Of course, even the best efforts can fall short. If the tooth must be removed, we would then consider preserving the empty space with a space maintainer. This orthodontic device usually takes the form of a metal band that’s cemented to a tooth on one side of the empty space with a stiff wire loop soldered to it that crosses the space to rest against the tooth on the other side. The wire loop prevents other teeth from crowding in, effectively “maintaining” the space for the permanent tooth.
Regular dental visits, plus your child’s daily brushing and flossing, are also crucial in preventing primary teeth from an “early departure.” Keeping them for their full lifespan will help prevent problems that could impact your child’s dental health future.
If you would like more information on the right care approach for primary teeth, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Importance of Baby Teeth.”
If you’ve had issues with periodontal (gum) disease, no doubt a few things have changed for you. You may be seeing us for dental cleanings and checkups more frequently and you have to be extra diligent about your daily brushing and flossing.
There’s one other thing you may need to do: change your diet. Some of the foods you may be eating could work against you in your fight against gum disease. At the same time, increasing your intake of certain foods could boost your overall oral health.
The biggest culprits in the first category are carbohydrates, which make up almost half the average diet in the Western world, mainly as added sugar. Although carbohydrates help fuel the body, too much can increase inflammation—which also happens to be a primary cause of tissue damage related to gum disease.
Of course, we can’t paint too broad a brush because not all carbohydrates have the same effect on the body. Carbohydrates like sugar or processed items like bakery goods, white rice or mashed potatoes quickly convert to glucose (the actual sugar used by the body for energy) in the bloodstream and increase insulin levels, which can then lead to chronic inflammation. Complex or unprocessed carbohydrates like vegetables, nuts or whole grains take longer to digest and so convert to glucose slowly—a process which can actually hinder inflammation.
Eating less of the higher glycemic (the rate of glucose conversion entering the bloodstream) carbohydrates and more low glycemic foods will help reduce inflammation. And that’s good news for your gums. You should also add foods rich in vitamins C and D (cheese and other dairy products, for instance) and antioxidants to further protect your oral health.
Studies have shown that changing to a low-carbohydrate, anti-inflammatory diet can significantly reduce chronic inflammation in the body and improve gum health. Coupled with your other efforts at prevention, a better diet can go a long way in keeping gum disease at bay.
If you would like more information on the role of diet in dental health, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Carbohydrates Linked to Gum Disease.”