Posts for: January, 2020
Dental amalgam—also known as “silver fillings”—has been used for nearly a hundred years to treat cavities. There are several reasons why this mixture of metals has been the go-to material among dentists: Malleable when first applied, dental amalgam sets up into a durable dental filling that can take years of biting forces. What’s more, it’s stable and compatible with living tissue.
But there’s been growing concern in recent years about the safety of dental amalgam, with even some wondering if they should have existing fillings replaced. The reason: liquid mercury.
Mercury makes up a good portion of dental amalgam’s base mixture, to which other metals like silver, tin or copper are added to it in powder form. This forms a putty that can be easily worked into a prepared cavity. And despite the heightened awareness of the metal’s toxicity to humans, it’s still used in dental amalgam.
The reason why is that there are various forms of mercury and not all are toxic. The form making headlines is known as methylmercury, a compound created when mercury from the environment fuses with organic molecules. The compound builds up in the living tissues of animals, particularly large ocean fish, which have accumulated high concentrations passed up through their food chain.
That’s not what’s used in dental amalgam. Dentists instead use a non-toxic, elemental form of mercury that when set up becomes locked within the amalgam and cannot leach out. Based on various studies, treating cavities with it poses no health risks to humans.
This also means there’s no medical reason for having an existing silver fillings removed. Doing so, though, could cause more harm than good because it could further weaken the remaining tooth structure.
The most viable reason for not getting a dental amalgam filling is cosmetic: The metallic appearance of amalgam could detract from your smile. There are newer, more life-like filling options available. Your dentist, though, may still recommend dental amalgam for its strength and compatibility, especially for back teeth. It’s entirely safe to accept this recommendation.
Many people with diabetes are hesitant about getting dental implants because they’re under the impression their chances of failure are greater than for non-diabetics. But if you’re one of the 26 million Americans with diabetes, that isn’t necessarily so — with a little extra precaution before, during and after implant surgery.
Diabetes is a group of diseases that affect how the body processes glucose. This simple sugar is used by the body to provide energy to cells, but can also cause damage if its volume level in the bloodstream is too high. The body normally regulates this through the hormone insulin produced by the pancreas.
The pancreas in people with Type 1 diabetes doesn’t produce insulin and so they must receive an outside source of the hormone through daily injections with careful daily monitoring of glucose levels. Those with Type 2 diabetes, the most common form of the disease, don’t produce a sufficient amount of insulin or the body no longer responds to the insulin produced. For either type, abnormal glucose levels — either too high or too low — can have adverse affects on the body, including blindness, nerve damage, gangrene, coma or death.
Diabetes can also slow wound healing, increase the risk of infection, and alter the body’s inflammatory response, all of which are major concerns when placing implants. Because implant placement involves minor surgery in which a wound results, there’s been wide concern that a slower healing process could increase the risk of implant failure.
Recent studies, though, are encouraging especially for patients who have their diabetes under control through medication, diet and exercise. Patients with poor glucose control are at higher risk, because it can take longer for the bone to heal around an implant after placement. For such individuals special considerations to guard against infection may be needed during implant surgery.
In fact, the implant success rate for most diabetics is about the same as for non-diabetic patients, 95%. With proper disease management and a little extra wound care, you can be among the many that experience a favorable outcome and a more attractive smile with dental implants.
Super Bowl LIV is set for February 2 at Hard Rock Stadium in Miami Gardens, Florida, where the top two teams in pro football will vie for the coveted Vince Lombardi Trophy. Unfortunately, many of their fellow competitors (and some of their teammates) will still be nursing injuries from a long, grueling season. Injuries are a fact of life for one of America's most popular sports, with every part of a player's body vulnerable to trauma—including their teeth, gums and jaws.
But although they do occur, dental and oral injuries aren't at the top of the list of most frequent injuries in the NFL. That's because of the athletic mouthguard, an oral appliance small enough to hold in the palm of your hand. Made of pliable plastic, a mouthguard helps absorb damaging forces to the face and mouth generated by the inevitable hits that players take in the course of a game. According to the American Dental Association, a player is 60% more likely to incur a dental injury when not wearing a mouthguard.
And they're not just for the pros: Mouthguards are regarded as an essential part of protective gear for all participants of organized football and other contact sports. They're the best defense against injuries like fractured (cracked) teeth or tooth roots, knocked out teeth or teeth driven back into the jaw (tooth intrusion).
Mouthguards are readily available in sporting goods stores, but the best type of mouthguards are those that are custom-made by dentists for the individual player, created from impressions taken of that individual's teeth. Because custom mouthguards are more accurate, they tend to be less bulky than “boil and bite” mouthguards, and thus provide a better and more comfortable fit. And because of this superior fit, they offer better protection than their retail counterparts.
Because they're custom-made, they tend to be more expensive than other types of mouthguards. And younger athletes whose jaws are still developing may need a new mouthguard every few years to reflect changes in jaw growth. Even so, the expense of a custom mouthguard pales in comparison with the potential expense of treating an impact injury to the teeth or mouth.
If you or a member of your family are avid participants in football, basketball, hockey or similar high-contact sports, a mouthguard is a must. And just like the pros, a custom mouthguard is the best way to go to for comfort and ultimate protection.
If you would like more information about oral sports protection, please contact us or schedule an appointment. To learn more, read the Dear Doctor magazine articles “Athletic Mouthguards” and “An Introduction to Sports Injuries & Dentistry.”