The role of cephalometrics in orthodontic case analysis and diagnosis

Abstract Orthodontics is a problem of relationships within the dentofacial complex. The profile pattern has commanded the most attention, probably because it affects the appearance of an individual so much and is of major concern in orthodontic therapy. The cephalometric roentgenograph has provided a means of accurately appraising the relationships of the parts of the face leading to a description of the mean or average facial form of normal occlusion. It also shows the range of variation that may occur. These abilities permit the attempt to classify facial types. This method of study and description of the skeletal and denture patterns of an individual at any particular time has been described as a Static Analysis . When comparisons are made of records taken of the same individual at different times, the result is a quantitative and qualitative interpretation of changes and may be called a Dynamic Analysis . It is evident that variations occur in the manner in which the face grows. It is not presumed that cephalometrics will supplant other methods of analysis; rather it should be looked upon as an aid in understanding the others.