Crowns and other extra-coronal restorations:Preparations for full veneer crowns

Abstract

Preparations for full veneer crowns is the eighth in the series on crowns and other extra-coronal restorations. Whilst handpiece skills are important, many other factors combine to ensure provision of a satisfactory full veneer crown (also termed 'full coverage crown'). Our aim in writing this article is to consider the principles which influence crown preparation, seasoned with clinical advice our undergraduate and postgraduate students have found useful.

Risk management in clinical practice. Part 3. Crowns and bridges

“…Suffi cient tooth reduction is needed for structural durability of the restoration, periodontal and aesthetic reasons, but not so much that the pulp or strength of the tooth is compromised. 8 In this respect, it is worth considering the usage of preparation matrices to gauge the appropriate amount of tooth reduction, especially when the shape of tooth is to be changed by the restoration. If part of the plan for care does involve altering the orientation of the crown of a tooth, a careful assessment needs to be made as to whether or not there is a risk of pulpal exposure and hence whether elective endodontics would be a sensible option.…”

Esthetic and functional rehabilitation of soft-drink eroded teeth with prosthodontic approach: A case report

“…Restoration of lost tooth structure with increase in the durability of the tooth can be achieved as a result of reduction of stress, with restorative work that occurs in the cervical region to prevent dentin sensitivity causing pulpal damage (Blair et al, 2002;Peutzfeldt et al, 2014). In this case, eroded hard tissue of the teeth was mended with root canal therapy and post-core treatment.…”

In vitro analysis of residual tooth structure of maxillary anterior teeth after different prosthetic finish line preparations for full-coverage single crowns

“…However, some reports indicate that KNE is a promising alternative to CHA, as it is minimally invasive, particularly in anterior regions (4,26). Nonetheless, the presence of a margin is regarded as paramount for contour precision and periodontal health (7,8,(27)(28)(29), and excellent demarcation is required during the preparation and impression phases (27). Consequently, dental technicians sometimes have difficulty detecting KNE, as the finish line is no longer represented by a line but rather by an area.…”