Abstract
By removing a part of the structure, the tooth preparation provides restorative space, bonding surface, and finish line for various restorations on abutment. Preparation technique plays critical role in achieving the optimal result of tooth preparation. With successful application of microscope in endodontics for >30 years, there is a full expectation of microscopic dentistry. However, as relatively little progress has been made in the application of microscopic dentistry in prosthodontics, the following assumptions have been proposed: Is it suitable to choose the tooth preparation technique under the naked eye in the microscopic vision? Is there a more accurate preparation technology intended for the microscope? To obtain long-term stable therapeutic effects, is it much easier to achieve maximum tooth preservation and retinal protection and maintain periodontal tissue and oral function health under microscopic vision? Whether the microscopic prosthodontics is a gimmick or a breakthrough in obtaining an ideal tooth preparation should be resolved in microscopic tooth preparation. This article attempts to illustrate the concept, core elements, and indications of microscopic minimally invasive tooth preparation, physiological basis of dental pulp, periodontium and functions involved in tool preparation, position ergonomics and visual basis for dentists, comparison of tooth preparation by naked eyes and a microscope, and comparison of different designs of microscopic minimally invasive tooth preparation techniques. Furthermore, a clinical protocol for microscopic minimally invasive tooth preparation based on target restorative space guide plate has been put forward and new insights on the quantity and shape of microscopic minimally invasive tooth preparation has been provided.
Highlights
Through preventive and early-stage disease treatment methods, minimally invasive dentistry has remained a conservative concept for maintaining tooth and periodontal structures with the least tooth tissue reduced or replaced.[1]
Invasive dentistry is not limited to caries treatment, but its principle can be used in any general field of dentistry.[3]
The comprehensive concept of minimally invasive prosthetic procedure (MIPP) was especially appropriate for dental attrition with reduced occlusive height, which could be reconstructed with minimal reduction of the tooth tissue.[7]
Summary
Through preventive and early-stage disease treatment methods, minimally invasive dentistry has remained a conservative concept for maintaining tooth and periodontal structures with the least tooth tissue reduced or replaced.[1]. The concept of MIPP involves clinical procedure that focuses on the use of minimally invasive treatments to achieve a high standard of esthetic dental function and long-term success. It was brought up by Professor Mauro Fradeani,[6] the associate editor of European Journal of Esthetic Dentistry. The comprehensive concept of MIPP was especially appropriate for dental attrition with reduced occlusive height, which could be reconstructed with minimal reduction of the tooth tissue.[7] Long-term restoration outcomes reported that the principle of MIPP was suitable for esthetic rehabilitation as well.[8] The core principle for both MICD and MIPP was maximum preservation of tooth tissue, which is one of the earliest consensus for the preparation of dental treatments in esthetic area.[9]. The tooth tissue is limited and currently not clinically reproducible, and so the accuracy of tooth preparation
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