Usually, when you lose a tooth, it is best for your oral health to have it replaced. Missing teeth can affect your bite as well as your ability to speak and chew. Their loss can increase the burden on your remaining teeth and can cause muscle pain in your jaws and headaches. And of course, losing a tooth can affect your appearance. The following information reviews replacing missing teeth with an implant retained denture. Although many patients have no problem wearing an upper denture, some people find it difficult to wear and eat with lower dentures.