PURPOSE This study was conducted to evaluate the effects of full-coverage all-ceramic zirconia, lithium disilicate glass-ceramic, leucite glass-ceramic, or stainless steel crowns on antagonistic primary tooth wear. MATERIALS AND METHODS There were four study groups: the stainless steel (Steel) group, the leucite glass-ceramic (Leucite) group, the lithium disilicate glass-ceramic (Lithium) gro...

PURPOSE To evaluate the marginal fit of CAD/CAM copings milled from hybrid ceramic (Vita Enamic) blocks and lithium disilicate (IPS e.max CAD) blocks, and to evaluate the effect of crystallization firing on the marginal fit of lithium disilicate copings. MATERIALS AND METHODS A standardized metal die with a 1-mm-wide shoulder finish line was imaged using the CEREC AC Bluecam. The coping was d...

This article describes the treatment provided to a patient who presented with a partially edentulous maxillary anterior space exhibiting severe resorption of the residual ridge. Two endosseous implants were placed to retain the prosthesis, which restored the missing teeth. A 1-piece zirconia implant fixed partial denture with individual all-ceramic crowns was used to replace the missing portion...

MATERIALS AND METHODS: Single-tooth implants were placed in healed extraction sites in 20 adult patients. Temporary pre-fabricated acrylic resin crowns were prepared and adjusted. The crown occlusion was adjusted to obtain minimal contacts in maximum intercuspation. After 6 weeks a ceramometal or all-ceramic crown was cemented. Radiographic and clinical examinations were made at baseline and at...

STATEMENT OF PROBLEM The conservation of sound tooth structure helps preserve tooth vitality and reduce postoperative sensitivity. Innovative preparation designs, like those for porcelain laminate veneers, are much less invasive than conventional complete-coverage crown preparations. However, no study has quantified the amount of tooth structure removed during these preparations. PURPOSE The ...

Ceramic post-and-core systems offer biocompatibility, aesthetics, reinforcement of the remnant root, and prosthesis retention. Aesthetic posts-and-cores contribute to the optical properties of the overlying restorations when metal-free crowns are used. This article illustrates the use of these materials to provide strength and aesthetics during the restoration of endodontically treated teeth. T...

This clinical report describes the oral rehabilitation of a young adult patient diagnosed with hypoplastic amelogenesis imperfecta. The specific objectives of this treatment were to eliminate tooth sensitivity while enhancing esthetics and restoring masticatory function. Treatment included removal of several teeth, lengthening of the maxillary and mandibular clinical crowns, and placement of an...

crestal bone loss is a biological complication in implant dentistry. the aim of this study was to compare the effect of progressive and conventional loading on crestal bone height and bone density around single osseointegrated implants in the posterior maxilla by a longitudinal radiographic assessment technique.twenty micro thread implants were placed in 10 patients (two implants per patient). ...

Retrieval of cement-retained implant prostheses can be more demanding than retrieval of screw-retained prostheses. This case report describes a simple and predictable procedure to locate the abutment screw access openings of cementretained implant-supported crowns in cases of fractured ceramic veneer. A conventional periapical radiography image was captured using a digital camera, transferred t...