نتایج جستجو برای: crown preparation

تعداد نتایج: 193499  

Journal: :Annals of reviews and research 2022

Annals of Reviews & Research open access journal that publishes high-quality solicited and unsolicited articles, from various types subject areas ranging management to engineering sciences, accounting, criminal etc. which deal with innovative research work.

Journal: :Journal of dental education 2015
Jennifer I Foley Gillian L Richardson Joyce Drummie

The aim of this study was to determine the level of agreement regarding assessments of competence among dental students, their student peers, and their clinical skills tutors in a preclinical skills program. In 2012-13 at the University of Edinburgh, second-year dental students learned to perform the following seven cavity preparations/restorations on primary and permanent Frasaco teeth: single...

2014
Necla Demir Atiye Nilgun Ozturk Meral Arslan Malkoc

OBJECTIVE To evaluate the marginal gap (MG) and absolute marginal discrepancy (MD) of full ceramic crowns with two finish line designs, shoulder and chamfer, using microcomputed tomography (micro-CT) before and after cementation. MATERIALS AND METHODS Sixty extracted human maxillary premolar teeth were divided into two groups based on the finish line design: Group I: 90° shoulder and Group II...

The complexation reactions between Tl+ and Pb2+ ions and crown ethers 12-crown-4(12C4), 15-crown-5 (15C5), benzo-15-crown-5 (B15C5), 18-crown-6 (18C6), dicyclohexyl-18-crown-6 (DC18C6) and aza-18-crown-6 (A18C6) were studied in 90% acetonitrile and 90% ethanol solutions at 25 °C, using an a.c. polarographic technique. The stoichiometry and stability of the complexes we...

Journal: :جستارهای ادبی 0
مه دخت پورخالقی چترودی محمّد رضا راشد محصل نقیب نقوی حمید طبسی

garshasp has peregrinated an agelong path from avesta epoch to the time of preparation of old historical context and iran’s national epic. garshasp, who is the unique hero of iran’s old mythology, that his brave acts, such as killing the dragon and ogre lobbing are important parts of the heroic themes included in the avesta, through the advent of pahlavi literary context because of reasons such...

2004
William A. Bechtold

Crown class, an ordinal tree-level mensuration attribute used extensively by foresters, is di#icult to ass ign in thefield because def ini t ions of individual classes are confounded by ambiguous references to the position the tree in the canopy and amount of light received by its crown. When crown class is decomposed into its two elements-crown position and crown light exposure--field assignme...

2015
Han-Sung Joo Hong-So Yang Sang-Won Park Hyun-Seung Kim Kwi-Dug Yun Min-Kyung Ji Hyun-Pil Lim

PURPOSE This study evaluated the fracture load of customized zirconia abutments with titanium insert according to preparation depths, with or without 5-year artificial aging. MATERIALS AND METHODS Thirty-six identical lithium disilicate crowns (IPS e.max press) were fabricated to replace a maxillary right central incisor and cemented to the customized zirconia abutment with titanium insert on...

Journal: :The Plant cell 2015
Yu Zhao Saifeng Cheng Yaling Song Yulan Huang Shaoli Zhou Xiaoyun Liu Dao-Xiu Zhou

Crown roots are the main components of the fibrous root system in rice (Oryza sativa). WOX11, a WUSCHEL-related homeobox gene specifically expressed in the emerging crown root meristem, is a key regulator in crown root development. However, the nature of WOX11 function in crown root development has remained elusive. Here, we identified a rice AP2/ERF protein, ERF3, which interacts with WOX11 an...

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