Vol. 4, Issue 1, Part E (2018)

Abstract: Selection of maxillary anterior teeth for complete dentures is crucial in clinical practice and controversy about the validity of even best method to employ still exists. Leon Williams formulated and publicized a method called the “Geometric theory” which is still widely used. Williams believed that there exists a relationship between the face-form and the form of the maxillary central incisor in most people and that this relationship should be taken into account in the tooth selection procedure. In spite of the SPA theory introduced later, the geometric theory remains till date a popular method of selection of anterior artificial teeth. For this reason, it was decided to assess the validity and specificity of William’s geometric theory by comparing tooth shape and form with apparent facial form as well as actual facial form in Malwa population for the age group 18-30 years and integrate it with teeth selection procedure.