| Abstract |
The purpose of my science fair experiment is to determine which type of toothpaste prevents bacteria growth the best: Colgate Regular, Crest Regular, or Sensodyne. Each toothpaste will have three participants that will test which toothpaste works best against different types of food. There will be a healthy meal from the Canada’s Food Guide, and a fast food option from McDonald’s restaurant. To do this, the participants will eat the meal, brush an hour later, and then swab an hour after brushing. Participants’ mouths will be tested again in the morning. Each Petri dish from the participants will be monitored for seven days to determine the most effective toothpaste. |
