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UF College of Dentistry: Services for Professionals

Special Care Instructions for Radiation Patients

How to Use Brush-on Fluoride (head and neck radiation patient)

1. The best time to use fluoride is at bedtime.

2. Remove partial or full dentures from the mouth.

3. Brush teeth thoroughly with soft toothbrush and regular toothpaste. Floss teeth by sliding the floss up and down each side of each tooth. A supersoft toothbrush, such as one made by Biotene, can usually be used without causing the gums to hurt or bleed. Note: It is very important to remove all food and plaque from between teeth before using fluoride. Food and plaque can prevent the fluoride from reaching the surface of the tooth.

4. Place a thin ribbon of the fluoride gel onto your toothbrush. . Either 0.4% stannous fluoride (Gel Kam) or 1.1% sodium fluoride (Prevident) may be used. Thoroughly brush the fluoride into all surfaces of the teeth, especially where the tooth meets the gum tissue.

5. Allow the fluoride to remain on the teeth for 5 minutes.

6. After 5 minutes, thoroughly expectorate (spit out) the residual fluoride. Very Important - do not rinse mouth, drink or eat for at least 30 minutes after fluoride use.

7. Head and neck radiation therapy patients should begin fluoride use no longer than one week after radiation therapy is completed. Repeat daily for as long as you have natural teeth remaining!!

RADIATON CARIES- WHY DOES IT OCCUR?

Radiation caries is defined as tooth decay that results from radiation-induced dry mouth (xerostomia). The increased incidence of tooth decay in postradiation patients is caused by radiation to the major salivary glands and is not due to radiation of individual teeth. This means that patients having received radiation to one or more of the major salivary glands are susceptible to radiation caries whether or not teeth have been included in the field of radiation. Radiation caries can occur because of the inability of the saliva to destroy bacteria that causes tooth decay and its inability to remineralize the tooth enamel. The decrease in salivary flow and salivary pH also contribute to the process of tooth decay.

NOTE: RADIATION CARIES CAN OCCUR WITHIN WEEKS AFTER RADIATION THERAPY IS COMPLETED.

SUGGESTIONS TO HELP ALLEVIATE DRY MOUTH (XEROSTOMIA) CAUSED BY RADIATION

1. Use pilocarpine (Salagen) 5mg, qid, (prescription required.)
2. Try special food preparation - blended and moist foods are easier to swallow.
3. Use artificial saliva (available over-the-counter.)
4. Sip plain water throughout the day (usually preferred over artificial saliva by most patients.)
5. Try Biotene brand, over-the-counter, dry mouth products (toothpaste, alcohol- free mouth rinse and OralBalance lubricating gel.)
6. Avoid the use of alcohol-based mouth rinses.
7. Try water and glycerin (few drops only) mixed in a small aerosol spray bottle.
8. Avoid the use of tobacco and alcoholic beverages.

ORAL CARE DURING HEAD AND NECK RADIOTHERAPY

It is extremely important to keep the mouth clean and healthy during head and neck radiation, to help reduce the risk of oral infection. A professional dental cleaning prior to radiation is highly recommended. Following are some suggestions for reducing oral complications during head and neck radiation.

1. The radiation oncologist or dentist will prescribe antiviral and antifungal medications when appropriate. These medications are usually very effective in lowering the risk of viral and fungal (thrush) infections in the mouth. Fewer infections in the mouth results in less pain and better nutrition.

2. Toothbrushing should be performed at least twice daily. Supersoft toothbrushes* are available that will not cause irritation, if used appropriately. Brushing should be done in a gentle, circular motion. To be thorough, brush teeth in a systematic fashion to include all surfaces of every tooth. Flossing is recommended as well as the use of a water-irrigating device, on a low setting, to eliminate food between teeth.

Hint: The bristles of the supersoft toothbrush will become even softer if held under warm water before use.

Hint: It is a good idea to gently brush the tongue, palate and gums with a supersoft toothbrush on a daily basis in order to remove harmful germs.

Hint: If a particular toothpaste burns or irritates the mouth, try a toothpaste that is specially made for children or people with dry mouth.*

3. Saline or saltwater and baking soda rinses (1 tsp. salt and 1 tsp. baking soda to one quart of water) may be used throughout the day to sooth the sore and dry mouth. When using mouthrinses, be sure to stagger their use throughout the day, allowing at least one hour before another mouthrinse. Using several different mouthrinses at one time will reduce their effectiveness.

4. To ease the pain of mouth ulcers, rinse with viscous lidocaine about 15 minutes before eating. Some pharmacies can also make flavored lollipops with medications that have a numbing effect (tetracaine) to use before eating. Eat small bites and chew thoroughly when using these numbing medicines to reduce the risk of choking.

5. Keep mouth and lips well lubricated with a water-based lubricant*. Petroleum jelly repels water and is not recommended for use.

6. When the mouth is sore, remove dentures and leave them out until the mouth heals. All full dentures and partial dentures should be disinfected before each use. Dentures without metal may be soaked daily in a fresh solution of Clorox and water (1 tbs. Clorox to 1/2 cup of water). Rinse the dentures well before placing them back in the mouth.

*Biotene supersoft toothbrush, mouthrinse without alcohol, water-based lubricant (OralBalance) and toothpaste are specially made for people with dry and sore mouths. They can be obtained through most pharmacies and are over-the-counter. The manufacturer of these products is Laclede , 15011 Staff Court, Gardena, CA 90248, 1-800-922-5856.

 

 

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