Dental Education
Online Dental Education Dental education lectures and videos Online dental ce Dental education articles Expert dental educators Dental products education Dental Community
 
Dental Publication / Article Details

A retrospective analysis of 102 zirconia single crowns with knife-edge margins A retrospective analysis of 102 zirconia single crowns with knife-edge margins

Author(s):

Carlo Poggio, DDS, MSD, PhD;Riccardo Dosoli, DDS; Carlo Ercoli, DDS

Date Added:

6/12/2012


Summary:

Statement of problem: Clinical reports of feldspathic porcelain veneered-zirconia crowns placed on teeth with knifeedge marginal finish lines have recently been presented but with data available for only a limited number of crowns in the anterior maxilla. Purpose: This retrospective study evaluated the clinical success and survival of feldspathic porcelain veneered-zirconia crowns fabricated with knife-edge margins in a private practice. Material and methods: One hundred and two teeth (51 anterior, 51 posterior) were prepared with knife-edge margins and restored with feldspathic porcelain veneered-zirconia crowns. The modified California Dental Association (CDA) criteria were used to clinically evaluate subjects recalled between May and December 2010. Data were analyzed with descriptive statistics. Results: The mean follow-up time was 20.9 months (SD, 13.6; range, 10-72). One tooth had to be extracted because of an endodontic problem not related with the restoration, 2 crowns had minor chipping of the veneering porcelain, while no crowns exhibited fracture of the zirconia core. Conclusions: In this retrospective evaluation, feldspathic porcelain veneered-zirconia crowns with knife-edge margins provided clinical performance similar to that reported with other margin designs.

Related Articles
Sectional Impressions and Simplified Folding Complete Denture for Severe Microstomia

Sectional Impressions and Simplified Folding Complete Denture for Severe Microstomia
A patient presenting with severe microstomia (PDI Class IV) was unable to insert a maxillary complete denture.

Author(s): Wendy AuClair-Clark, DDS, MS;Daniel A. Givan, DMD, PhD; Julius C. Seidenfaden, CDT; Jose Paiva, DDS, MS
View Article>>
Significance of Crown Shape in the Replacement of a Central Incisor with a Single Implant-Supported Crown

Significance of Crown Shape in the Replacement of a Central Incisor with a Single Implant-Supported Crown
When utilizing a single implant-supported crown to replace a central incisor, understanding the final shape of the implant restoration is an important factor to help achieve a successful esthetic outcome. In today's dentistry, tooth shape is a critical factor when dental implant prosthesis are considered in the esthetic zone. The goal of this study was to objectively analyze the significance of natural crown shape when replacing a central incisor with a single implant-supported crown. Data analysis revealed that is there is a "black triangle", a diastema, or presence of dental or gingival asymmetry, an additional restoration on the adjacent central incisor is often required in order to fulfill esthetic goals. The additional restoration is highly recommended in situations with a triangular crown shape, while it is suggested in cases of square/tapered and square tooth shapes in the presence of a dental diastema.

Author(s): Luca Gobbato, DDS, MS;Gianluca Paniz, DDS, MS, FACP;Fabio Mazzocco, DDS; Andrea Chlerico, DDS; Teppel Tsukyama, DDS; Paul A. Levi Jr. DMD; Arnold S. Welsgold, DDS
View Article>>
Creating Physiologic Contours Using a Modified Geller Cast Technique

Creating Physiologic Contours Using a Modified Geller Cast Technique
This article will discuss how to control the gingival contours of the final restorations in the laboratory.

Author(s): Edward A. McLaren, DDS, MDC;Yi-Yuan Chang, MDC
View Article>>
Related Videos
Chu's Esthetic Gauges - Part 1 Premium Member Content

Chu's Esthetic Gauges - Part 1
Dr. Stephen Chu demonstrates a new instrument for assessing tooth dimension.

Presented By:: Stephen J. Chu, DMD, MSD, CDT
Presentation Style: Lecture
Community Rating:
 
Watch Now>>
El arte del mejoramiento de la sonrisa utilizando una tecnica directa con resina compuesta Premium Member Content

El arte del mejoramiento de la sonrisa utilizando una tecnica directa con resina compuesta
El Dr Claudio Pihno describe el enfoque artistico integral e interdisciplinario para el mejoramiento de la sonrisa.

Presented By:: Claudio Pinho, DDS
Presentation Style: Lecture
Community Rating:
 
Watch Now>>
Computerized Dentistry for Private Practice: Abutments, Ceramics and Occlusion Premium Member Content

Computerized Dentistry for Private Practice: Abutments, Ceramics and Occlusion
Using various softwares of abutment design and various acquisition units, a clinician becomes familiar with the procedures involved in scanning, designing and restoring implant restorations.

Presented By:: Dean C. Vafiadis, DDS
Presentation Style: Video
Community Rating:
 
Watch Now>>
Related Courses
The Role of Occlusion in Implant Prosthetics Premium Member Content

The Role of Occlusion in Implant Prosthetics
In this presentation Dr. Carlo Poggio delves into the biomechanics and clinical relevance of proper occlusal management in implant dentistry. Combining a thorough review of the literature with clinical dental applications, Dr. Poggio attempts to suggest a rational for designing the occlusion for implant restorations. Topics covered include comparison of occlusal management for teeth and implants. In addition, the importance of controlling the occlusal forces to protect the bone-implant interface from overload and the role of occlusion in peri-implant microbial infection.

Presented By:: Carlo Poggio, DDS, MSD, PhD
Presentation Style: Online Self-Study Course
CE Hours: 1 CEU (Continuing Education Credit)
Watch Now>>
OCCLUSION: Can We Possibly Simplify It? Part 3 Premium Member Content

OCCLUSION: Can We Possibly Simplify It? Part 3
Over the past 20 years, many of us have been confused, frustrated, unsure and crazy about ... “How do I get my occlusion philosophy on the right path?” At NYU FMR we have developed tried and true techniques that are guaranteed to make you understand occlusion, contact points and mandibular movement that makes sense, is easy to diagnose and systematically treat with success. In addition being comfortable Restoring OVD, understanding TMJ joint position and treating the worn dentition. Using our SOT methods and Level 1-10 Occlusion Classification we can show you how to become successful in the “Occlusion” of your patients. Spend an hour with us and open up a whole new world of occlusion philosophy and understanding. This is the real deal!

Presented By:: Dean C. Vafiadis, DDS
Presentation Style: Online Self-Study Course
CE Hours: 1 CEU (Continuing Education Unit)
Watch Now>>
The Art of Exquisite Anterior, Posterior, Single and Multiple Unit Provisionals Premium Member Content

The Art of Exquisite Anterior, Posterior, Single and Multiple Unit Provisionals
Provisional restorations have become a vital diagnostic and assessment tool to evaluate function color, shape, contour, occlusion, periodontal response, implant healing, and overall esthetics.With increased demands being placed on provisional restorations, new materials and techniques are being developed and some existing protocols are being refined to accomplish desired goals.

Presented By:: Shannon Pace Brinker, CDA, CDD
Presentation Style: Online Self-Study Course
CE Hours: 1 CEU (Continuing Education Unit)
Watch Now>>
Download Now

Important!

To view this dental publication or article, you must be a registered user of Dental XP. If you are already a member, click here to login.

Registration is free and only takes several minutes. Dental XP will never spam you, or sell your information.

Join For Free











Contact Us | Privacy Policy | Terms of Use
©2023

Preferred Language: English Flag
Contact Us · Login · Register