Posts for: March, 2018
If you’re facing cancer treatment, we wish you the best outcome possible. Treating this disease has advanced tremendously in recent decades, but the available options are still often challenging to endure. It will be your primary focus for the foreseeable future.
As a dental provider we also want you to be aware how the two main treatments, chemotherapy and radiation, could adversely affect your teeth and gums, especially if you’re receiving radiation therapy near the head and neck. The aim of cancer treatment is to attack and destroy cancer cells to prevent their growth. Unfortunately, it can also destroy neighboring healthy cells and lead to harmful consequences in different parts of the body, including the mouth.
Salivary glands, for example, are especially vulnerable to damage during cancer treatment. This could create a situation where the mouth no longer produces adequate saliva flow, leading to a condition called xerostomia or dry mouth. Besides a lot of discomfort, restricted saliva flow can also increase your risk of tooth decay and other dental diseases. This is because saliva is the body’s acid neutralizer (acid can erode tooth enamel) and its first line of defense against microbial infection.
To guard against this, it’s important to support salivary flow as much as possible if you experience dry mouth symptoms during treatment (as well as beyond—it’s possible the damage to these glands could be permanent). Since some medications also contribute to dry mouth, you should speak with your physician about the prescriptions you’re taking: if any have dry mouth side effects ask if there’s an alternative drug without these side effects. You should also drink more water during the day and especially when taking medications. And consider substances like xylitol gum that can help boost saliva flow.
Unfortunately, it may not be possible to fully avoid the effects of these treatments on your teeth and gums. So, be sure you keep up daily brushing and flossing and see your dentist regularly for cleanings and checkups. If necessary, there are a number of restoration options to restore your smile after you’ve completed your treatment.
Some patients who wear dentures face a kind of Catch-22: their denture fit may have loosened and become uncomfortable over time due to continued bone loss, yet the same bone loss prevents them from obtaining dental implants, a superior tooth replacement system to dentures.
But there may be a solution to this dilemma that combines the stability of implants with a removable denture. A set of smaller diameter implants — “mini-implants” — can support a removable denture with less bone than required by a conventional implant.
Like all living tissue, bone has a life cycle: after a period of growth, the older bone dissolves and is absorbed by the body, a process known as resorption. The forces generated when we bite or chew are transmitted by the teeth to the jawbones, which stimulates new bone formation to replace the resorbed bone. When the teeth are lost, however, the stimulation is lost too; without it, resorption will eventually outpace bone growth and repair, causing the bone mass to shrink.
Removable dentures also can’t supply the missing stimulation — bone loss continues as if the dentures weren’t there; and due to the compressive forces of a denture, bone loss accelerates. As the jawbone structure used to originally form the denture’s fit eventually shrinks, the denture becomes loose and difficult to wear. It’s possible to adjust to the new jaw contours by relining the dentures with new material or creating a new set of dentures that match the current bone mass. Without adequate bone, fixed crowns or bridges anchored by conventional implants may also be out of the picture.
On the other hand, mini-implants with their smaller diameter need less bone than the traditional implant. A few strategically placed within the jaw are strong and stable enough to support a removable denture. One other advantage: these mini-implants can be installed in one visit with local anesthesia and usually without the need for incisions or stitches.
If you would like more information on dentures supported by mini-implants, 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 “The ‘Great’ Mini-Implant.”