Results 241 to 250 of about 2,588,760 (308)

Microscopic Evaluation of Dentinal Defects after Root Canal Preparation with Different Hand and Nickel-Titanium Files; An In Vitro Study.

J Pharm Bioallied Sci
Karia HM, Vaghela I, Dhanesha A, Mrugnayani, Solanki P, Rathwa R.   +5 more
europepmc   +1 more source

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

The Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe, Hallie P. Street‐Sampson, Takuya Konishi, Michael W. Caldwell   +3 more
wiley   +1 more source

Osteohistological evidence for terrestrial adaptation and an extended growth period in mekosuchine crocodylians and its potential role in their extinction

The Anatomical Record, EarlyView.
Abstract The Australasian crocodylian fossil record is dominated by the extinct endemic clade Mekosuchinae, with known members spanning the Eocene‐to‐Holocene. This diverse clade exhibited high morphological disparity, from early members superficially similar to Crocodylus, to more terrestrial forms later in the clade's evolutionary history.
Devin K. Hoffman, Cecily S. C. Nicholl, Oliver Bradley, Sreya Magar, Marie Sofia Sebaratnam, Alexandra Houssaye, Ryan N. Felice, Adam M. Yates, Stephen F. Poropat, Philip D. Mannion   +9 more
wiley   +1 more source

Redescription of the cranial morphology of Amphisbaena braestrupi and Amphisbaena laurenti (Squamata: Amphisbaenidae) from the Pleistocene of Brazil using x‐ray computed tomography

The Anatomical Record, EarlyView.
Abstract Amphisbaenians (Squamata: Amphisbaenidae) are fossorial reptiles with highly specialized cranial morphology, yet their fossil record is frequently limited by fragmentary preservation. This study provides a detailed osteological redescription of the skulls of Amphisbaena braestrupi and Amphisbaena laurenti from the Pleistocene of Lagoa Santa ...
Carolina L. Paiva, Henrique C. Costa, Christy A. Hipsley   +2 more
wiley   +1 more source

Formation of dentinal microcracks after root canal preparation with four kinds of mechanical nickel-titanium files. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Wang Z, Xue M.
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

The effect of root canal preparation on the shape of the curved root canal

International Endodontic Journal, 1985
Summary. This study reports the effect of the step‐bad enlargement technique of root canal preparation on the shape of the curved root canal of extracted human teeth. This was achieved by superimposing tracings made from photographic prints obtained by radiographs of teeth before canal preparation, after apical preparation and after coronal flaring ...
K C, Lim, J, Webber
openaire   +2 more sources

The validity of simulated root canals for the investigation of the prepared root canal shape

International Endodontic Journal, 1985
Summary. Curved root canals from extracted human teeth were prepared using K‐type files. The resultant shapes were compared both quantitatively and qualitatively with canals that were formed in polyester clear casting resin and similarly prepared. Moderately curved canals generally demonstrated a funnel‐shaped canal preparation. Severely curved canals
K C, Lim, J, Webber
openaire   +2 more sources

The importance of chemomechanical preparation of the root canal

Oral Surgery, Oral Medicine, Oral Pathology, 1955
Abstract 1. 1. The results of a clinical study to determine the importance of thorough cleansing of the root canal are reported. 2. 2. Although I do not wish to leave the impression that medication of the root canal is unimportant, for I do use medicaments (including antibiotics) where indicated, no medication other than irrigating solutions ...
openaire   +2 more sources

A comparison of canal preparations in straight and curved root canals

Oral Surgery, Oral Medicine, Oral Pathology, 1971
Abstract Extracted human single-rooted permanent teeth were classified according to degree of root curvature. Following hand instrumentation of the root canals, an examination of cross sections revealed that straight canals were much more readily prepared round than were curved canals.
openaire   +2 more sources

[Root canal preparation: shaping and cleaning of the root canal].

Nederlands tijdschrift voor tandheelkunde, 2006
Primary shaping is of paramount importance for a succesfull root canal treatment. In this article the basis principles of apical terminus location, shape, size and diameter are discussed. The use of NiTi instruments and crown-down preparation techniques are explained.
L B, Peters, P R, Wesselink
openaire   +1 more source