1 |
http://www.waterpik.com/oral-health/plaque-gumdisease.html
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2 |
http://www.webmd.boots.com/oral-health/guide/smoking-oral-health
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3 |
http://www.seattle-dentist.com/Smoking-Periodontitis.htm
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4 |
http://www.perio.org/consumer/smoking.htm
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5 |
http://www.lib.uiowa.edu/hardin/md/smokingoral.html
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6 |
http://www.quittersguide.com/smoking-and-oraldiseases.shtml
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7 |
http://www.quitway.com/smoking- health- risks.html
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8 |
http://www.quittersguide.com/smoking-and-oraldiseases.shtml
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9 |
http://www.waterpik.com/oral-health/smoking.html
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10 |
http://www.oramd.com/smoking-and-gum-disease.htm
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11 |
http://www.webmd.com/oral-health/guide/smokingoral-health
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12 |
http://www.cdc.gov/OralHealth/topics/periodontaldisease.htm
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13 |
http://www.sciencealert.com.au/news/20080105-17254-2.html
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14 |
http://www.learn-how-to-quit-smoking.com/smokinggum-disease.htm
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15 |
http://www.medicinenet.com/oral- health- and- bone-disease/glossary.htm
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16 |
http://eoralhealth.com/
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17 |
http://www.dentalgentlecare.com/periodontaldisease.htm
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18 |
http://www.montefiore.org/healthlibrary/centers/cancer/smokres/
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19 |
http://dentistry.about.com/od/dentalhealth/a/smoking.htm
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20 |
http://www.healthline.com/sw/gsa-smoking-andrespiratory-diseases
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