Dr Hardeep Bhatta & Dr Allen Friesen
Suite 205 - 1465 Salisbury Ave
Port Coquitlam, BC V3B6J3
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.”
Even with all the medical know-how we possess at the dawn of the 21st century, complete tooth loss is still a big problem. In this country, more than a quarter of all adults between ages 65 and 74 have lost all of their teeth. For these individuals, removable full dentures are often still used as an affordable and effective way to replace missing teeth.
Success with dentures originates from a collaboration among dentist, laboratory technician, and, of course, the denture-wearer. Creating false teeth that look natural is as much an art as it is a science. We take a number of steps to make sure you will get the best results. These include:
As a denture wearer, you will need to visit our office regularly to make sure the gum tissue and bone upon which your dentures rest stay healthy. It's common to see a gradual loss of bone in people who wear dentures at a rate that varies from person to person. This bone loss can affect the fit of your dentures and lead to other health problems, which we can address if we are monitoring you on an ongoing basis.
If you have any questions about dentures, please contact us or schedule an appointment for a consultation. You can learn more about this topic by reading the Dear Doctor magazine article “Removable Full Dentures.”
Cleaning dentures is an important part of wearing them. However, did you know that recent research has revealed a link between denture hygiene and overall health? The evidence shows that oral bacteria have been implicated in chronic obstructive pulmonary (lung) disease, bacterial endocarditis (“endo” – inside; “card” – heart), generalized infections of the respiratory tract and other systemic diseases. While it is never our intent to frighten you, we feel it is important that we share some important tips on maintaining and caring for your dentures so that your oral health does not negatively impact your general health.
Our first tip focuses on fit, as denture slippage is an experience that anyone who wears dentures dreads. So if your dentures seem to slip or you have started increasing the amount of adhesive you are using to achieve the same level of denture retention that you had when first fitted, you need to make an appointment with us soon. Otherwise, an ill-fitting denture can cause discomfort, embarrassment and contribute to other oral health issues.
Next, we must focus on cleaning your dentures. It is critical that you clean your dentures daily. However, you should never use harmful or abrasive cleansers. Nor should you ever place your dentures into boiling water! The best method for cleaning is to soak them daily in a non-abrasive denture cleaner. And when you remove them, gently brush them with a soft-bristled toothbrush.
Our last tip concerns how long you wear your dentures each day. Even if your dentures are extremely comfortable — for example, you forget they are in — you should not wear them 24 hours a day. Why? Because you will develop a chronic yeast infection called, “denture stomatitis” due to stagnation that develops under dentures when the lubricating and antibacterial effects of saliva are impeded. Unfortunately, the constant pressure on the gum tissues caused by wearing dentures can accelerate jawbone loss over time. Give your mouth and tissues a rest by sleeping without your dentures in your mouth.
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.”