For good oral health, brushing and flossing are excellent habits to keep. However, it’s difficult to reach every nook and cranny of all your teeth. The back teeth (the molars) can be especially difficult to reach and, because they have a rough, uneven surface, leftover food and plaque can easily collect on them and cause cavities. To protect these vulnerable teeth and keep them clean, dental sealants are a great solution. These create a clear, plastic varnish over the teeth, literally “sealing” them off.