Losing a back tooth will darken your overall smile making it look smaller and narrower. Your smile will appear to stop short, and the look will be exaggerated if the missing tooth has teeth on both sides of it. Function during chewing will be reduced and function of many teeth can be affected by losing just one tooth. When you are missing a tooth, you compensate by chewing differently, putting pressure on different parts of your mouth. This can cause your other teeth to shift, creating gaps and spaces and may even cause fractures that result in additional tooth loss or the need for restorations, something that our dental care specialists seek to prevent.