29 teeth represents an extra tooth in addition to the 28 teeth, and this extra tooth could be a wisdom tooth or a supernumerary tooth. You can go to the dentist for a specific examination and take a surface tomogram to see the condition of the teeth in the jawbone. It could also be 29 teeth because there are other wisdom teeth that have not erupted yet. Typically adults have 28-32 teeth, whereas someone with wisdom teeth will have four extra wisdom teeth, and someone without wisdom teeth will have 28 teeth. Individuals will have multiple teeth and some will have ambulatory teeth. This condition is due to the fact that multiple teeth occur when the ectodermal lobe develops one more during the development process. Multiple teeth can be extracted if they interfere with facial aesthetics.