Posts for: August, 2016
With all the new tooth-colored fillings for cavities, it's easy to overlook metal amalgam. While this mainstay of dental care for over a century might not be as attractive as composite resins or glass and resin ionomers, it still has the advantage of strength and durability.
Amalgam is a stable metal alloy usually made up of silver, tin, copper and mercury. The metals are proportioned and mixed precisely to guard against “free” mercury molecules, which could pose a health hazard. The mixture is pliable at first, but then sets hard once molded into the prepared area of the tooth.
Besides strength, amalgam's other advantages include low cost, high resistance to wear and biocompatibility (not toxic to the body or allergy-producing). At the same time, it can require more tooth structure removal to accommodate a filling and cause higher sensitivity to temperature for a while after installation. Its main disadvantage, however, is appearance — it's now considered unacceptable from an aesthetic point of view to use it in visible areas like the front teeth.
Because of this, materials resembling natural tooth color are coming into vogue, especially as their strength improves. Still, dental amalgam continues to play a useful role, especially in less visible back teeth with higher chewing forces.
One past concern about dental amalgam is the inclusion of mercury in the alloy. As mentioned before, mercury is hazardous in a “free” form when not knit microscopically with other metals; as such it can emit a vapor that could enter the bloodstream and damage the nervous system. But after several studies by various organizations, the American Dental Association has concluded amalgam's precise mixture prevents the mercury from taking this form: although some vapor is given off during chewing it's far too low in concentration to pose any danger.
Dental amalgam continues to be an effective choice for fillings. Whether it's the right choice for you will depend on the type and location of a tooth to be filled, and whether durability is a higher concern than appearance. If we do recommend an amalgam filling, you can be assured it's a safe and lasting choice.
If you would like more information on your choices for dental fillings, 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 “Silver Fillings — Safe or Unsafe?”
When Entertainment Tonight host Nancy O’Dell set out to teach her young daughter Ashby how to brush her teeth, she knew the surest path to success would be to make it fun for the toddler.
“The best thing with kids is you have to make everything a game,” Nancy recently said in an interview with Dear Doctor TV. She bought Ashby a timer in the shape of a tooth that ticks for two minutes — the recommended amount of time that should be spent on brushing — and the little girl loved it. “She thought that was super fun, that she would turn the timer on and she would brush her teeth for that long,” Nancy said.
Ashby was also treated to a shopping trip for oral-hygiene supplies with Mom. “She got to go with me and choose the toothpaste that she wanted,” Nancy recalled. “They had some SpongeBob toothpaste that she really liked, so we made it into a fun activity.”
Seems like this savvy mom is on to something! Just because good oral hygiene is a must for your child’s health and dental development, that doesn’t mean it has to feel like a chore. Equally important to making oral-hygiene instruction fun is that it start as early as possible. It’s best to begin cleaning your child’s teeth as soon as they start to appear in infancy. Use a small, soft-bristled, child-sized brush or a clean, damp washcloth and just a thin smear of fluoride toothpaste, about the size of a grain of rice.
Once your child is old enough to hold the toothbrush and understand what the goal is, you can let him or her have a turn at brushing; but make sure you also take your turn, so that every tooth gets brushed — front, back and all chewing surfaces. After your child turns 3 and is capable of spitting out the toothpaste, you can increase the toothpaste amount to the size of a pea. Kids can usually take over the task of brushing by themselves around age 6, but may still need help with flossing.
Another great way to teach your children the best oral-hygiene practices is to model them yourself. If you brush and floss every day, and have regular cleanings and exams at the dental office, your child will come to understand what a normal, healthy and important routine this is. Ashby will certainly get this message from her mom.
“I’m very adamant about seeing the dentist regularly,” Nancy O’Dell said in her Dear Doctor interview. “I make sure that I go when I’m supposed to go.”
It’s no wonder that Nancy has such a beautiful, healthy-looking smile. And from the looks of things, her daughter is on track to have one, too. We would like to see every child get off to an equally good start!
If you have questions about your child’s oral health, please contact us or schedule an appointment for a consultation. You can learn more by reading the Dear Doctor magazine articles “Taking the Stress Out of Dentistry for Kids” and “Top 10 Oral Health Tips for Children.”