Which Toothbrush should I use?
When I was in dental school I had to take a class in dental hygiene were we were tested on a weekly basis as to how well we could clean our teeth. Over the semester we were instructed in the proper use of a manual toothbrush, dental floss, interproximal brushes (tiny brushes that go between the teeth when the space is big enough), toothpiks and various other aids. We had to learn what made the best toothpastes and mouth rinses and how much to use and for how long. You could not pass the class unless you were able to demonstrate that you could remove 100% of the plaque from all areas of all your teeth. So, once a week in the minutes before her class the bathrooms were elbow to elbow with second year students that were brushing and flossing, rinsing and spitting and doing it all over again. I remember a classmate of mine asking the instructor if he could use a waterpik. Her answer…”I don’t care if you use a lawnmower, I just don’t want to find any plaque on your teeth!” Well, that became the mantra for our class and at the end of the semester, we even gave her a charm bracelet with a gold lawnmower attached.
So, what is the big deal about getting rid of all the plaque from your teeth and gums? As recent as 50 years ago, within my life time, there was little understood about the roll of plaque and gum disease. Research done in the 1960’s began to link the various types of plaque to gum disease and tooth decay and we continue to learn about the harmful effects of these tiny bacteria….yes, the bugs are out to get us. It’s well known that bacteria like to live in a warm, dark, wet environment and our mouths present a perfect home. We have come to learn that there are two groups of bacteria, one that likes oxygen called aerobic and a group that can’t do well in the presence of oxygen call anaerobic. The short and simple of it is that aerobic bacteria cause tooth decay and anaerobic bacteria cause gum disease. Research has also shown that the longer the plaque stays on the teeth the more damaging it becomes and it’s more important to disrupt the bacteria so that it can’t organize than it is to remove it. In fact, we can never completely remove all the bacteria from our mouth but we can make it difficult for it to organize.
So what should we do in our battle in this never ending fight against tooth decay and gum disease? Well, we know that unwaxed floss is better than waxed floss because unwaxed floss will spread out and cut through the biofilm that the plaque creates….but, waxed floss is better than no floss. A manual tooth brush will clean about 80% of the tooth surface but can not get in between the teeth and the 20% you miss is were about 80% of the problems occur. An argument can be made thatif you were only going to chose one tool to clean your teeth with, flossing would be more important than brushing. Research also shows us that a powered brush that spins in circles is more effective than a manual brush and a sonic brush is even better than the powered brush. It’s important to know that when selecting a brush you should use a soft bristled brush as it will allow you to get the bristles further in between the teeth and slightly under the gums. Dental plaque is found as a biofilm or sludge along the tooth surface just above the gum line and in between the teeth. Using a waterpik is like using a hose to rinse grease off of your driveway…not very effective. You have to also remember that if you are using a mouth wash to rinse your mouth with that it takes time for the liquid to penetrate the biofilm of plaque and to get any effect from the rinse you should do two 30 second rinses.
So, the bottom line to all of this is that it takes a village to clean a mouth. There is no single approach to getting the job done. It’s important to visualize that you are trying to disrupt the formation of a biofilm along the gum tissues and in between the teeth. You can clean about 80% of the tooth surface with any type of brush as long as you are using the correct technique and the technique is different for the different types of brushes. Something needs to be used between the teeth and that could be dental floss, toothpiks or small brushes. Waterpiks and mouth rinses have a minimal effect on the bacterial plaque. If you have any questions about this or want to learn how you can do a better job, send me an email or be sure to discuss this with Susan the next time you are in to see her.
Thanks,
Gary Sellers DDS
By Dr. Gary D. Sellers
By Dr. Gary D. Sellers