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>>
A Multi-faceted Treatment Approach for Anterior Reconstructions Using Current Ceramics, Implants and Adhesive Systems

A Multi-faceted Treatment Approach for Anterior Reconstructions Using Current Ceramics, Implants and Adhesive Systems
Of all developments in dental technology, fulfilling the esthetic and functional demands of a patient is still a challenge for both dentists and dental technicians. This becomes more difficult for patients with a previous treatment history that is not ideal. This case presentation demonstrates reconstruction of an anterior zirconia resin-bonded fixed dental prosthesis (RBFDP) for the mandible with a combined treatment approach utilizing veneers for harmonized space distribution on the abutment teeth and an implant-supported zirconia fixed dental prosthesis in the anterior segment of the maxilla. Adhesive cementation if the restorations is also presented in a step-by-step approach based on the current state of the art.

Author(s): Jan Hajto, Dr. Med, Dent; Uwe Gehringer, CDT; Mutlu Ozcan, Prof, Dr, Med Dent, PhD
View Article>>
A Biometric Approach to Predictable Treatment of Clinical Crown Discrepancies

A Biometric Approach to Predictable Treatment of Clinical Crown Discrepancies
Dental professionals have long been guided by mathematical principles when interpreting aesthetic and tooth proportions for their patients. While many acknowledge that such principles are merely launch points for a smile design or reconstructive procedure, their existence appears to indicate practitioners’ desire for predictable, objective, and reproducible means of achieving success in aesthetic dentistry. This article introduces innovative aesthetic measurement gauges as a means of objectively quantifying tooth size discrepancies and enabling the clinician to perform aesthetic restorative dentistry with success and predictability.

Author(s): Stephen J. Chu, DMD, MSD, CDT
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>>
Comprehensive Esthetic Therapy in a Patient with an Intra-capsular Disorder - Part 2 of 2 Premium Member Content

Comprehensive Esthetic Therapy in a Patient with an Intra-capsular Disorder - Part 2 of 2
Dr. Rob Ritter discusses comprehensive esthetic work-up and treatment planning in the reconstruction of a patient with an existing intra-capsular disorder.

Presented By:: Robert G. Ritter, DMD
Presentation Style: Lecture
Community Rating:
 
Watch Now>>
Related Courses
The Artist Within: How to Create Exceptional Looking Provisionals Premium Member Content

The Artist Within: How to Create Exceptional Looking Provisionals
In this webinar, Dr. Lerner will demonstrate how smile design, tooth anatomy and the shades of contour, surface texture and colour are all components of a beautiful smile.

Presented By:: Jay M. Lerner, DDS
Presentation Style: Online Self-Study Course
CE Hours: 1 CEU (Continuing Education Unit)
Watch Now>>
Minimizing Adhesive Failures: The Science of Dentin Adhesives Premium Member Content

Minimizing Adhesive Failures: The Science of Dentin Adhesives
This webinar will look at the science behind bonding to dentin and review the risks and benefits of different clinical techniques.

Presented By:: Lee Ann Brady, DMD
Presentation Style: Online Self-Study Course
CE Hours: 1 CEU (Continuing Education Unit)
Watch Now>>
Digital Workflow for Anterior Implant Aesthetics Premium Member Content

Digital Workflow for Anterior Implant Aesthetics
We have seen excellent results in the aesthetic zone when immediate implant placement techniques have been used. A review of the current literature reveals and confirms the re-education of mid-buccal facial recession is best when an immediate provisional is used. If we can digitize this information and create a crown-root form matrix, we can allow tissue to maintain the exact 3D position of the crown and root of the tooth that is to be replaced. A technique using "dicom" files and "STL" files of the original tooth-root will be demonstrated. This will allow ideal healing of the surrounding hard and soft tissues in for any implants restoration.

Presented By:: Dean C. Vafiadis, DDS
Presentation Style: Online Self-Study Course
CE Hours: 1 CEU (Continuing Education Credit)
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
©2021

Preferred Language: English Flag
Contact Us · Login · Register