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Wyszukujesz frazę "root apex" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Endodontic treatment of immature tooth - a challenge
Autorzy:
Gupta, S.
Sodhi, S.P..
Brar, G.K.
Bansal, R.N.
Powiązania:
https://bibliotekanauki.pl/articles/2097446.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
mmature tooth
root apex
endodontic treatment
open apex
MTA
regenerative endodontics
Opis:
Root apex is an area of primary importance for an endodontist. When a tooth erupts in the oral cavity the apical foramen undergoes anatomical changes with age. Root development is completed and the root apex is closed three years after eruption of the tooth. Endodontic practice is influenced to a great extent by different stages of root development and the type of tissue present within the roots. Open apices pose a challenging problem for the success of root canal treatment because they favour the extravasation of the irrigating solution and/or sealer into periradicular tissues, thus jeopardizing apical healing. Regenerative endodontics (revascularization/pulpal regeneration) is a straightforward approach accomplished with currently available instruments and materials. A literature review suggests that Mineral Tri oxide Aggregate (MTA) is the most favourable and recommendable material for single-visit apexification, even in cases when regenerative endodontics cannot be performed. A plus point of MTA is its biocompatibility and hermetic apical seal with no micro-leakage. It should be considered as an effective alternate for treating immature teeth with necrotic pulps. Treatment of a tooth with open apex poses multiple challenges. However, it is not easy to decide which material should be used: Calcium hydroxide, Mineral Tri oxide Aggregate, Biodentine, Platlet Rich Fibrin (PRF), or White Portland Cement (WPC). The choice of treatment regimen depends on several factors, e.g. individual cases, experience of the operator, familiarity with handling various materials, and patient’s availability for follow-up appointments. This review highlights various challenges in the treatment of open apex, with emphasis on MTA compared with other materials.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2020, 14, 3; 73-79
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Foliar Nutrition with Sulphur and Boron, Amino Acids on Morphological Characteristics of Rosette and Wintering Winter Rape (Brassica napus L.)
Autorzy:
Sikorska, Anna
Gugała, Marek
Zarzecka, Krystyna
Powiązania:
https://bibliotekanauki.pl/articles/124189.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Brassica napus
leaves
rosette
height elevation of shoot apex
diameter of root collar
pile root length
planting
Opis:
The field experiment was carried out in 2016-2019 at the Agricultural Experimental Station – Zawady belonging to the University of Natural Sciences and Humanities in Siedlce. The experiment was established in a random splitplot system in three repetitions. The surface of one plot was 21 m-2. The examined factors were: I – three varieties of winter rape: Monolit (population variety), PX115 (hybrid variety restored with a semi-dwarf growth type), PT248 (hybrid variety restored with a traditional growth type); II – four types of foliar feeding: 1. control object (without foliar feeding and biostimulator), 2. biostimulator Aminoplant, 3. Foliar fertilizer Siarkomag + foliar fertilizer Bormax, 4. Foliar fertilizer Siarkomag + foliar fertilizer Bormax + biostimulator Aminoplant. The aim of the study was to determine the effect of foliar nutrition on the number of leaves in the rosette, elevation height of the cone of growth, root collar diameter, length of pile root and wintering of three varieties of winter rape. Foliar nutrition with sulphur, boron combined with amino acids increased the number of rosette leaves (on average by 27.1%), root diameter (on average by 11.0%), pile root length (on average by 9.7%) and provided the best wintering of plants compared to the control variant. Irrespective of the foliar nutrition used, the elevation height of the growth cone was the same. The genetic factor did not affect the number of leaves in the rosette. The population morphotype and the long-stemmed hybrid had the same elevation height of the growth cone, while the population variety was distinguished by the greater diameter of the root neck, while the restored hybrid with the traditional type of growth with a longer pile root compared to the remaining varieties. Diverse climatic conditions prevailing during summer and autumn vegetation and winter dormancy in the years of research have influenced the cut of plants and wintering.
Źródło:
Journal of Ecological Engineering; 2019, 20, 6; 190-197
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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