Buscar
Mostrando ítems 1-10 de 446
Fine root isotropy in Eucalyptus grandis plantations. Towards the prediction of root length densities from root counts on trench walls
(Springer, 2010-09-01)
The objectives of the study were to assess changes in fine root anisotropy and specific root lengths throughout the development of Eucalyptus grandis ( W. Hill ex Maiden) plantations and to establish a predictive model of ...
Comparative bark anatomy of root and stem in Styrax camporum (Styracaceae)
(Int Assoc Wood Anatomists, 2005-01-01)
The bark of Styrax camporum Pohl (Styracaceae) differs anatomically in the root and stem. Roots have layered secondary phloem; short sieve tubes with simple, transverse or more or less inclined sieve plates; fibres in ...
Influence of a Parafunctional Oral Habit on Root Fracture Development After Trauma to an Immature Tooth
(Lippincott Williams & Wilkins, 2011-07-01)
Root fractures in immature teeth are rare because the resilience of the alveolar bone is more favorable to the occurrence of luxation. This article reports a case of traumatic injury in an immature permanent tooth that ...
Effect of root canal filling material and level of surgical injury on periodontal healing in dogs
(Munksgaard Int Publ Ltd, 1998-10-01)
Some divergencies in the literature about periodontal healing after surgical injury stimulated the development of this experiment. The root canals of dogs' teeth were negotiated and filled by the lateral condensation ...
Corn root length density and root diameter as affected by soil compaction and soil water content
(2007-01-01)
Negative effects of soil compaction have been recognized as one of the problems restricting the root system and consequently impairing yields, especially in the Southern Coastal Plain of the USA. Simulations of the root ...
Radiographic evaluation of periradicular repair after endodontic treatment of dog's teeth with induced periradicular periodontitis
(2001-12-01)
Eighty-four root canals of premolars from six dogs were left open for 7 days, and then sealed and followed for 45 days until periradicular periodontitis developed. The root canals were then treated endodontically using ...
Ultrastructure of early mineral deposition during hyaline layer formation in rat molars
(Elsevier B.V., 2001-04-01)
There is no consensus on whether the first mineralized layer, the hyaline layer, that is juxtaposed to root dentine is a variety of dentine or cementum or even a tissue of epithelial origin. Some suggest that there is no ...
Histological evaluation of MTA as a root-end filling material
(Blackwell Publishing, 2007-10-01)
Aim To assess the histological response associated with grey mineral trioxide aggregate (GMTA) and zinc oxide eugenol (ZOE) as root-end filling materials in teeth where the root canals were not filled and the coronal access ...