As a Prosthodontist practicing in Orange County, CA, I am often asked by patients: Who is qualified to treat a full mouth reconstruction case? The simple answer is that any graduate of a dental school program with a DDS or DMD degree is technically qualified to practice the full scope of dentistry, including full mouth reconstructions. As the saying goes, however, the devil is in the details. To fully appreciate the details of a full mouth reconstruction, one has to take the temporomandibular joints (TMJ) into consideration. A Prosthodontist has three additional years of training after dental school and is a qualified specialist in the treatment of TMJ disorders, and a full mouth reconstruction that does not take the TMJ’s into consideration can lead to disorders. Utilizing a semi-adjustable or fully-adjustable articulator and a face-bow, a Prosthodontist makes the proper measurements of the patient’s vertical dimension, occlusal plane, and TMJ positions, along with the details that go into the patient’s proper occlusion (bite). As the functional information is gathered, the esthetics of the case comes together in order to produce the natural “form and function” of the patient’s smile. The complexity of full mouth reconstruction cases lies in that each patient is different, and the measurements taken to customize the treatment is precise for each individual. If each cases is approached from one perspective, the only constant is the variance in the outcome of the case, often leading to more problems rather than solutions. The additional training that Prosthodontists seek allows them to often visualize the final outcome prior to the start of treatment. The treatment plan is thus the most important part of the treatment, and the collection of information allows us to meticulously piece together the form and function of the patient’s smile, leading to consistent outcomes.