A case of occlusal reconstruction with minimal tooth preparation

1 A case of occlusal reconstruction with minimal tooth preparation MI CAD/CAM A male patient in his 50s with a chief complaint of esthetic disturbance underwent a full-maxillary restorative procedure using MI restoration and digital dentistry.This report aims to digest and share treatment procedures and methods.The patient was treated with a complete jaw examination to achieve an esthetic goal while preserving as much of the existing enamel and tooth structure as possible.In the basic treatment, all enamel was preserved and re-evaluated, and the patient was treated with an aligner orthodontic treatment as a pre-prosthetic treatment to improve the dental axis and minimize teeth cutting.After the end of the retention period, the patient was reevaluated.A printer model was extracted from the superposition of STL data from the intraoral scanner, DICOM data from the CT, and facial photograph data.A mock-up was made for the patient and used for consultation.A simulation of tooth cutting was performed on the mock-up, and after the provisional restoration was placed, restorative treatment was performed using an adhesive technique.While the formation of a conventional full crown results in a significant loss of tooth strength, an approach such as this that preserves enamel may be effective for the long-term preservation and stability of teeth.In addition, the use of digital equipment for examination and diagnosis was helpful in referring to anatomical criteria and highly effective in providing consultation to the patient.