Results 301 to 310 of about 128,639 (365)

Types of Failures in Porcelain-Fused-to-Metal Dental Restoration

, 2014
Porcelain-fused-to-metal (PFM) restoration is a type of dental prosthesis introduced since the early 1960s. This prosthesis is strong, aesthetically satisfactory, and affordable. This study aims to classify the types of failures observed in PFM prostheses that were constructed in a dental laboratory in Misrata, Libya. Data from six months of laboratory
Mohamed Aboras, Andanastuti Muchtar, Che Husna Azhari, Norziha Yahaya   +3 more
openalex   +3 more sources

A retrospective cross-sectional study of early patient-reported failures of direct restorations placed in a primary dental care setting

British Dental Journal, 2021
Introduction A retrospective cross-sectional study of early patient-reported failures of restorations was initiated to understand the reasons and factors associated with early failure. Early patient-reported failures are defined as restorations requiring replacement within three months of placement.Aim To investigate if restorative material placed or ...
Vivian Yung Yee Wong, Yoke Kwan Chua, Holy Koh, Kenneth Meng Tze Low   +3 more
openalex   +4 more sources

Dental Zirconia Implants up to Three Years in Function: A Retrospective Clinical Study and Evaluation of Prosthetic Restorations and Failures

The International Journal of Oral & Maxillofacial Implants, 2013
The clinical evaluation of one-piece zirconia dental implants with different diameters to determine survival rate and type of implant failure.Information concerning implant surgery (number, diameter, length, and position of inserted implants; patient age, sex, risk factors, and bone quality) was extracted from the clinical records. All treated patients
Michael Gahlert, Doris Burtscher, George Pfundstein, Ingrid Grunert, Heinz Kniha, Stefan Roehling   +5 more
openalex   +4 more sources

Dental restoration longevity: survival functions and statistical indices in low and high failure rate groups

Community Dentistry and Oral Epidemiology, 1988
Abstract A group of 71 patients was examined to determine the longevity of restorations placed at the University of North Carolina School of Dentistry. Patients with an overall restorations failure rate of equal to or greater than 40 per 1000 restoration‐yr were categorized as having a “high failure rate” and those below that were considered “low ...
Claude W. Drake
openalex   +4 more sources

Prediction and failure analysis of composite resin restorations in the posterior sector applied in teaching dental students

Journal of Ambient Intelligence and Humanized Computing, 2020
The failure of composite resin restorations in the posterior region is an ongoing concern in current clinical practice This study assesses possible factors and causes of the failure of restoration 1 year after their placement by fourth year dental students (on a 5-year degree course).
Ignacio Aliaga, Juan F. De Paz, Vicente Vera, Álvaro Enrique García Barbero, Javier Bajo   +4 more
openalex   +4 more sources

Application of Optical Coherence Tomography to detect failures at the enamel dental restoration interface— an in vivo study

CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, 2009
Dental restoration interfaces can present failures, known as marginal microleakage. These failures are extremely difficult to diagnose and can develop into recurrent caries if left untreated. The most common tool used for diagnostic imaging in dentistry, X-ray, is not able to visualize micrometric structures.
Cláudia Cristina Brainer de Oliveira Mota, H. U. K. S. Kashyap, Bernardo B. C. Kyotoku, Anderson S. L. Gomes   +3 more
openalex   +3 more sources

Early Failure of Class II Resin Composite Versus Class II Amalgam Restorations Placed by Dental Students

Journal of Dental Education, 2012
Using the information from remake request slips in a dental school's predoctoral clinic, we examined the short‐term survival of Class II resin composite restorations versus Class II dental amalgam restorations. In the student clinic, resin composite is used in approximately 58 percent of Class II restorations placed, and dental amalgam is used in the ...
J.D. Overton, Diane J. Sullivan
openalex   +4 more sources

Failure Rates of Tooth-Supported Crown Restorations in an Academic Dental Center

Journal of Dental Health and Oral Research
Background: Accurate documentation of tooth-supported crown restoration failures is crucial for assessing dental care quality. At the University of Michigan School of Dentistry, failure rates from Electronic Health Record (EHR) reports were notably low, however, experts in the quality improvement committee suspected underreporting.
Romesh Nalliah
openalex   +2 more sources

Influence of the mechanical properties of composites for indirect dental restorations on pattern failure.

Stomatologija, 2007
This study evaluated the fracture pattern of four composites for indirect dental restoration relating to three-point flexural strength, compressive strength and modulus of elasticity (Solidex, Artglass, belleGlass, and Targis). Ten specimens of each composite were tested in a universal testing machine at 0.5 mm/min crosshead speed for flexural strength
Michel Espinosa Klymus, Rosemary Sadami Arai Shinkai, Eduardo Gonçalves Mota, Hugo Mitsuo Silva Oshima, Ana Maria Spohr, Luiz Henrique Burnett   +5 more
openalex   +2 more sources

Validation of Model Dental Restoration for Failure Prediction

Dental Materials, 2022
Wondwosen Aregawi, A. Zhang, R. Chen, Bruno P. Lima, Conrado Aparicio, Joel Rudney, Alex Fok   +6 more
openalex   +2 more sources