A method for characterizing in vivo operation of a dental prosthetic, the method comprising: - providing subject position data derived from subject position signals transmitted by three or more subject position sensors attached to a measurement subject, wherein the subject position data comprises multiple instances of data ordered according to a subject position index and wherein the three or more subject position sensors are reactive to an excitation field, preferably are non-line-of sight sensors; - providing prosthetic position data derived from prosthetic tracking signals transmitted by three or more prosthetic tracking sensors attached to the dental prosthetic around the dental prosthetic in a substantially triangular pattern located within an oral cavity of the measurement subject, wherein the three or more prosthetic tracking sensors are reactive to an excitation field and are non-line-of-sight sensors, and wherein the prosthetic tracking signals and the subject position signals are transmitted contemporaneously, and wherein the prosthetic position data comprises multiple instances of data ordered according to a prosthetic position index; - transforming the subject position data into a reference three-dimensional coordinate system, wherein the reference three-dimensional coordinate system comprises multiple instances of data ordered according to a coordinate index, wherein the coordinate index is based at least in part upon the subject position index, and wherein the reference three-dimensional coordinate system is indicative of the three or more subject position sensors forming a level plane; and - comparing, automatically with one or more processors, the prosthetic position data and the reference three-dimensional coordinate system according to a comparison order to characterize the dental prosthetic, wherein the comparison order is based at least in part upon the prosthetic position index and the coordinate index. - providing subject position data derived from subject position signals transmitted by three or more subject position sensors attached to a measurement subject, wherein the subject position data comprises multiple instances of data ordered according to a subject position index and wherein the three or more subject position sensors are reactive to an excitation field, preferably are non-line-of sight sensors; - providing prosthetic position data derived from prosthetic tracking signals transmitted by three or more prosthetic tracking sensors attached to the dental prosthetic around the dental prosthetic in a substantially triangular pattern located within an oral cavity of the measurement subject, wherein the three or more prosthetic tracking sensors are reactive to an excitation field and are non-line-of-sight sensors, and wherein the prosthetic tracking signals and the subject position signals are transmitted contemporaneously, and wherein the prosthetic position data comprises multiple instances of data ordered according to a prosthetic position index; - transforming the subject position data into a reference three-dimensional coordinate system, wherein the reference three-dimensional coordinate system comprises multiple instances of data ordered according to a coordinate index, wherein the coordinate index is based at least in part upon the subject position index, and wherein the reference three-dimensional coordinate system is indicative of the three or more subject position sensors forming a level plane; and - comparing, automatically with one or more processors, the prosthetic position data and the reference three-dimensional coordinate system according to a comparison order to characterize the dental prosthetic, wherein the comparison order is based at least in part upon the prosthetic position index and the coordinate index.