[The interdisciplinary fixed restoration of an edentulous maxilla with a marked resorption of the alveolar crest. A case report. Part II: the definitive restoration].

Different materials and methods can be used for edentulous maxillae rehabilitations. A precise fit between the implant and the framework is assumed. Hence, often implant suprastructures made by conventional lost wax techniques lack such a fit and a secondary modification is necessary.

[The interdisciplinary fixed restoration of an edentulous maxilla with a pronounced resorption of the alveolar crest. A case report. Part I: The immediate reconstruction].

Edentulous patients wearing a conventional complete denture often request a fixed restoration for functional, esthetical and/or psychosocial reasons. For these patients implant-supported fixed dental prostheses are a prosthetic means of choice. However, after years of edentulism often a marked resorption of the alveolar crest has taken place, asking for bone augmentation before implant placement.

Clinical study of the color stability of veneering ceramics for zirconia frameworks.

Purpose: The purpose of this study was to compare 3 veneering ceramics for zirconia frameworks regarding color stability and predictability of the esthetic result.

Materials And Methods: Six patients with 1 maxillary central incisor to be restored were enrolled in the study. The contralateral incisor had to be nonrestored and vital to serve as a reference tooth.

Team approach between prosthodontics and dental technology.

A collaborative relationship between prosthodontists and dental technicians can greatly improve the esthetic and functional results of restorations. When each discipline takes the time to understand the strengths and challenges of the other, together they can formulate a treatment plan that will culminate in a successful result. The diagnostic waxup gives the dental team a three-dimensional illustration of the problem and allows the patient to view the problem and discuss solutions.

Conventional visual vs spectrophotometric shade taking for porcelain-fused-to-metal crowns: a clinical comparison.

This study tested the shade match of single porcelain-fused-to-metal restorations with the adjacent dentition when the restorations were fabricated according to data from conventional visual shade matching or from a new spectrophotometric system. The samples of a Vita Classic shade guide were measured with the spectrophotometer to determine the CIE L*a*b* color parameters. Three clinicians independently selected the best match to a maxillary right or left incisor needing a restoration in 10 patients.

Visual and spectrophotometric shade analysis of human teeth.

Due to interhuman differences in the perception of color, visual shade assessment of human teeth is lacking standardization that may be improved by the use of a spectrophotometer. In this study, we tested the hypothesis that spectrophotometric assessment of tooth color is comparable with human visual determination. On 30 patients, three operators with unreported visual color deficiency independently selected the best match to the middle third of unrestored maxillary central incisors, using a Vita Classical Shade Guide.

Aesthetic evolution of anterior maxillary crowns: a literature review.

The aesthetics of anterior maxillary restorations and health of the surrounding tissues are primary determinants of the successful outcome of a clinical procedure. Various restorative materials and application techniques have been developed to achieve optimal aesthetics. While early porcelain-fused-to-metal restorations exhibited metal margins, the development of shoulder porcelain margins in the 1980s resulted in a significant aesthetic improvement.

The interdisciplinary relationship between prosthodontics and dental technology.

Prosthodontists are often unaware of difficulties faced by dental technicians. Likewise, dental technicians may be unaware of difficulties faced by prosthodontists. By being better educated about one another's discipline, prosthodontists and technicians can establish cooperative goals and help each other to identify significant facts and potential difficulties posed by specific materials, techniques, or stages of the work in progress.

Light transmission of composite luting resins.

The final color of all-ceramic restorations is dependent on the surrounding structures and on the ceramic itself. The degree that the layer of the composite luting agent contributes to this final color formation can only be estimated. Based on general optical physics, this paper reports on transmissivity of some commercially available composite luting resins and discusses how these theoretical results apply to clinical situations.

The new In-Ceram Spinell system--a case report.

The final color of all-ceramic restorations is mainly dependent on the light-transmission characteristics of the different components of the ceramic material. This article is a report on the improvement in light reflection and light transmission possible with the new In-Ceram Spinell crown system, which provides a natural-looking appearance.

Maxillary anterior single-tooth replacement: comparison of three treatment modalities.

The correct treatment of a single missing maxillary anterior tooth in the aesthetically prominent area has become more challenging. The missing tooth can today be replaced by one of three prosthodontic treatment modalities--conventional fixed bridge, resin-bonded bridge, and single-tooth implant. The most important factors to be considered are the predictability of aesthetics, the preservation of the enamel shield and the dentinal and pulpal tissue, and the preservation of the periodontium and the alveolar bone.