You can always prevent gum infection by having a good program of oral hygiene for it can help keep plaque down and can usually help in preventing gum disease. Tooth decay can be prevented by good oral hygiene. And this can entail brushing of teeth regularly to clear food debris and plaque that get stuck on teeth and gums. Daily flossing of teeth helps remove plaque from between teeth. regular rinsing with natural mouthwash can help those who are unable to use a toothbrush. Children at a young age should be taught to develop good oral hygiene habits. It is also important to have regular dental check ups because a dentist can detect the excessive plaque build up and can remove tartar. Detecting and treating early gingivitis is important to prevent more severe periodontitis. If you are a smoker, it is best that you stop smoking.