Restoration of endodontically treated teeth: review, classification, and post design

Restoration of endodontically treated teeth requires knowledge of material science, defect analysis, force analysis, and mechanical engineering principles of preparation and design. This article reviews the basic principles of the restorative concepts and presents an approach to restoration of teeth, based on a new classification. The component strength, component interface strength, and analysis of force intensity, frequency, and direction are discussed; the restoration design is reviewed, including post selection and passive engagement posts. A new post of a "segmentally parallel" design is introduced.