Family Dentistry of Ocean City
Robert W. Yaskin, D.M.D. LLC
421 15th Street
Ocean City, NJ 08226
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There’s no dispute in most cases that dental implants are superior to removable dentures as a restoration for missing teeth. One area in particular is the effect a removable denture can have on remaining bone and other structures of the mouth, especially if their fit becomes loose.
If you’re a denture wearer, you probably know that loose dentures are a major problem, one that can worsen the longer you wear them. The denture compresses the gum tissue it rests upon to produce forces that are more detrimental than what the jaw normally receives from natural teeth. The underlying bone will begin to dissolve (resorb) under these compressive forces. This in turn changes the dynamic of the denture’s fit in the mouth, and you’ll begin to notice the fit becoming looser over time.
The loose fit can be remedied with either the production of a new denture that updates the fit to the current structure of your jawbone or by relining the existing denture with new material. Relining can be done as a temporary measure with material added to the denture during your visit to the office, or as a more permanent solution in which the material is added at a dental laboratory. With the latter option, you would be without your dentures for at least a day or more.
Even if dental implants for multiple teeth aren’t feasible for you financially, you do have other options. With one particular option, the removable lower denture can be held in place and supported by two strategically placed implants. Not only can this lessen the risk of developing a loose fitting denture, it may also alleviate most of the compression on the gum tissue and reduce the rate of bone resorption. The result is better function for eating and speaking and often a boost in self-confidence, as well as many more years of effective wear from your dentures by limiting bone loss.
If you would like more information on the effects and treatment of loose dentures, 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 “Loose Dentures.”
When a device meant to make your life easier doesn't function properly, it can be extremely frustrating. This is sometimes the case for people who wear lower dentures, which loosen over time. These removable replacement teeth can become less reliable and more uncomfortable. Why does this happen?
The answer is bone loss. When a tooth is lost, the bone surrounding it deteriorates and this will change the shape of the jawbone in your mouth. You may find that a lower denture that once had a snug fit on your lower jaw is now sliding around. This happens more often on the bottom because your muscular tongue pushes against the denture. Also, a top denture has more surface area due to an artificial palate to help create suction to the roof of the mouth and keep it in place.
Dental implants, which permanently replace the roots of teeth, do not loosen and they also prevent bone loss. But replacing a whole set of bottom teeth with dental implants and crowns is expensive. What to do?
There's a relatively new solution that combines the security of implants with the affordability of a removable denture. It's called an overdenture, and it may be something you want to consider. An overdenture is a lot like the removable lower denture you already have, only it fits over two implants strategically placed in your lower jaw. While the lower denture is still removable, its stability is greatly improved.
Studies have shown that people with two-implant overdentures have a higher quality of life, and receive better nutrition, than those wearing conventional dentures. It's not hard to figure out why: A more stable denture makes it easier to eat healthy foods such as vegetables — or, really, any foods — and prevents embarrassing slippage of false teeth.
You can read more about this topic in the Dear Doctor magazine article “Implant Overdentures for the Lower Jaw.”
What does the term “two-implant overdentures” mean?
For more than a century, complete dentures were the only care option for edentulous (toothless) people. As a solution, these left a lot to be desired, particularly for the lower jaw. Now dental technology has developed a better alternative that combines two strategically placed dental implants and a traditional lower denture that has been modified to fit over the two implants — thus the term.
What are the problems with traditional dentures?
The problem is that when you lose teeth, the bone that supported the missing teeth begins to shrink away. This is known as resorption, and it is the reason that dentures fitted too soon after teeth are lost quickly become loose. Bone loss happens most rapidly during the first year and is four times greater in the lower jaw than in the upper.
Why not just use dental adhesives to hold dentures tightly to the lower jaw?
Zinc, a major ingredient in most dental adhesives, has been associated with neurological disorders and may be unsafe. In addition, dental adhesives are expensive and the cost of frequent usage adds up.
Besides dental adhesives, are other health problems associated with dentures?
Yes, edentulism has been related to poor nutrition. Many edentulous people switch to soft foods with high fat content because they find healthier foods like vegetables and proteins difficult to chew.
What are dental implants?
Dental implants are replacements for the roots of teeth, the parts that are below the gumline and anchored in bone. They are usually covered with a crown that shows above the line of the gums.
What are the benefits of implants?
Most importantly, implants reduce the amount of bone resorption. Studies have shown about 75% less resorption in parts of the jaw with implants compared to areas without them. Since most of the bone loss occurs within the first year after tooth loss, it is important to place implants within this time period.
Is a complete set of dental implants a good solution for edentulism?
Yes, it can be a good solution, but it is not for everyone. Some patients, who have lost a great deal of bone support, need another solution for cosmetic reasons that offer more facial support like an implant overdenture. In addition, depending on their resources and insurance, some people require a less expensive solution.
Why does the two-implant overdenture work better for the lower jaw?
Based on differences in bone volume, density and other factors, we think that four to six implants are needed to retain an upper implant overdenture. Thus a two-implant overdenture is a good solution to consider for a lower jaw, but other options might be preferred for an upper jaw.
Contact us today to schedule an appointment to discuss your questions about dentures and implants. You can also learn more by reading the Dear Doctor magazine article “Implant Overdentures for the Lower Jaw.”