Results 301 to 310 of about 1,610,731 (328)

Influence of preparation designs on marginal adaptation and failure load of full-coverage occlusal veneers after thermomechanical aging simulation.

Journal of Esthetic and Restorative Dentistry, 2019
OBJECTIVES To evaluate the fracture resistance and marginal quality of maxillary molars restored using lithium disilicate glass-ceramic (LDG) occlusal veneers with two preparation designs. METHODS Sixteen extracted maxillary molars were assigned to two
D. Angerame, M. De Biasi, Martina Agostinetto, A. Franzò, G. Marchesi   +4 more
semanticscholar   +1 more source

Specific adaptation and breeding for marginal conditions

Euphytica, 1994
Breeding has been very successful in generating cultivars that in favorable environments, and together with large use of fertilizer and chemical control of weeds, pest and diseases, have increased agricultural production several fold. Today the environmental impact of high input agriculture in more favorable environments causes growing concern.
openaire   +2 more sources

Marginal adaptation of nine commercial intermediate resins

Dental Materials, 1991
The bonding efficacy of nine commercially available intermediate resins was examined by measuring the maximum contraction gap of a light-activated composite in a cylindrical cavity of human dentin. With only one exception, the marginal adaptation of the composite improved significantly when the intermediate resins were combined with an experimental ...
H. Chigira, Sadao Wakumoto, Kazuo Itoh
openaire   +3 more sources

Adaptation, variation and selection in marginal areas

Euphytica, 1994
The word adaptation and its derivatives are reviewed as well as the characteristics of environmental marginality. Plant traits are discussed in the light of their adaptive significance, specially pointing at their phenotypic expression under stress.
openaire   +2 more sources

MARGINAL ADAPTABILITY AND FIT OF CERAMIC MILLED INLAYS

The Journal of the American Dental Association, 1995
The authors investigated the marginal adaptation and internal fit of ceramic inlay made by a ceramic milling system. The study's results indicated that the mean marginal and internal gap size of the ceramic inlay restorations was less than 100 microns, making the fit clinically acceptable.
Yasuhiko Tsuchitani, Mikako Hayashi, Mitsuo Torii, Keiji Kawai   +3 more
openaire   +3 more sources

Scanning electron microscopic evaluation of marginal adaptation of AH-plus, GuttaFlow, and RealSeal at apical one-third of root canals – Part I: Dentin-sealer interface

Journal of Conservative Dentistry, 2018
Background: Complete seal at dentin-sealer-core interface of the root canal is required to maintain long-term periapical health. Aim: The aim of this in vitro scanning electron microscopic (SEM) study was to determine which of the commonly used root ...
Sakshi Jain, H. Adhikari
semanticscholar   +1 more source

Gain Margins of Adaptive Control Systems

IEEE Transactions on Automatic Control, 2010
This paper presents a systematic study of the gain margins (GM) of adaptive control systems: the specification of the parameter range of a control gain matrix in a designed adaptive control system for maintaining the desired closed-loop signal boundedness and asymptotic tracking performance.
Qian Sang, Gang Tao
openaire   +2 more sources

Comparison of Polymerization Shrinkage, Physical Properties, and Marginal Adaptation of Flowable and Restorative Bulk Fill Resin-Based Composites.

Operative dentistry, 2017
PURPOSE The purpose of this study was to compare the marginal adaptation of two flowable bulk fill resin-based composites (FB-RBCs), two restorative bulk fill resin-based composites (RB-RBCs), and one regular incremental-fill RBC in MOD cavities in vitro.
J.H.J. Jung, Sung-Ho Park
semanticscholar   +1 more source

Adaptive jitter margin PID controller

2008 IEEE International Conference on Automation Science and Engineering, 2008
This paper develops an adaptive controller for (wireless) networked control systems by combining delay estimation and a jitter margin based PID controller tuning. A control system with wireless measurement is assumed, where the network induces delay jitter.
openaire   +2 more sources

Marginal adaptation of porcelain margins in ceramometal restorations

The Journal of Prosthetic Dentistry, 1988
Steven A. Aquilino, Hal N. Arnold
openaire   +3 more sources