Endocrown with Leucite-Reinforced Ceramic: Case of Restoration of Endodontically Treated Teeth

Abstract

A common problem encountered by dentists is the restorative treatment of nonvital teeth. When the pulp chamber presents appropriate conditions for retention, the endocrown is indicated. This monolithic, ceramic adhesive restoration is singularly used yet warrants wider recognition and use. The endocrown allows preservation of the tooth structure and is minimally invasive. Currently, this treatment option, of a core buildup and full coverage restoration, reduces tooth structure excessively. This treatment presents not only functional limitations but also aesthetic concerns. Recently, the VITA-PM9 system, a leucite-reinforced glass ceramic, has been increasingly used in a variety of clinical situations due to its satisfactory physical-mechanical and aesthetic properties. Therefore, the present study describes a case of surgical restoration of a nonvital tooth using the endocrown technique and the VITA-PM9.

The impact of restorative material and ceramic thickness on CAD\CAM endocrowns

“…Among the rehabilitative treatments proposed in the literature for the endodontically treated teeth, endocrown restorations seems quite promising (3,4,8,9,14-17). This type of indirect restoration is indicated for teeth in need of occlusion rehabilitation.…”

Toothbrushing Wear Resistance of Stained CAD/CAM Ceramics

“…All these ceramics received the VITA AKZENT Plus stain kit that consists of feldspathic ceramic powder, butanediol and glycerin [3]. Additionally, after the staining firing, the ceramics received a glaze firing [30]. This study simulated two different staining techniques for the ZLS material.…”

Influence of Restoration Height and Masticatory Load Orientation on Ceramic Endocrowns

“…11 Due to its high translucency and favorable resistance, this material has been used in the manufacture of monolithic crowns. 6,12 Studies have argued that a minimal remaining height of 1.5 mm for clinical crowns promotes adequate adhesion to retain the endocrown, 13 and a more conservative coronary preparation tends to promote better performance due to the decrease in the restoration size. 14 However, maintaining the clinical condition of 1.5 mm of remaining coronary height/space suggested by the literature combined with the possibility of different sizes of premolar clinical crowns (6-8 mm) 15 generates doubt about load distribution in this restorative modality.…”

“…4,5 Thus, alternative and more cautious interventions, such as endocrown restorations have been a rehabilitation option. 6 One of the advantages presented by endocrown restoration is conservation of the remaining dentin, since preparation does not require removal of intraradicular gutta-percha, restricting anchorage at the pulp chamber. 7 The endocrown consists of a monolithic restoration, manufactured by computer-aided design/ computer-aided manufacturing technology (CAD/CAM) or vacuum injection technique.…”