Rooting for the best brand of toothpaste could be the best option to do for most people. But some people may not benefit from them especially when they have special dental needs.
Think fluoride - In a parenting seminar, I learned from the guest dentist that toothpastes are nothing if they have got no fluoride in them. Fluoride is the main element that combats cavities and tooth decay. You must also consider fluoride presence when looking for the best mouthwash for your personal use.
Stay away from sodium lauryl sulfate (SLS) - Many dental surveys share that SLS is harmful to health. Read through the ingredient list to track SLS components. There are a few brands which do not include this. They are usually the famed organic toothpastes. They cost more than usual but they play as effective means of protection to your dental health.