Dental implants are the most natural-looking tooth replacement option. Dentures sit on top of your gums and have a framework of plastic gums around the teeth, which might themselves be plastic. They can be passable, but unless you get high-end cosmetic dentures, they are not usually attractive. Even the best dentures can’t pass as natural, either, if they don’t stay in place.
Dental implants can look very natural because they are surrounded by your gums. Plus, they can be made with highly attractive ceramic materials that emulate your natural tooth enamel.