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1. Kissing is also recommended for gums and teeth because it increases production of saliva, which helps kill the bacteria that cause tooth decay and gum disease.

2. The added ingredient of xylitol in gum helps prevent tooth decay, and consumers purchase it to maintain oral hygiene.

3. Other health benefits include reducing tooth decay and possibly improving bone strength.

4. This is unfortunately not sufficient to avoid tooth decay and the painful remedial treatment that goes with it.

5. The extract also helped kill a group of bacteria that causes tooth decay.

6. Tooth decay has been dropping significantly among Chinese children in the past 15 years, an expert said on Friday.

7. Children should be weaned from bottles with nipples after their first birthday to help avoid a problem known as baby bottle tooth decay.

8. Ms Preston said tooth decay occurred when bacteria in the mouth converted sugars into an acid that attacked the tooth surface.