Results 121 to 130 of about 1,484,253 (303)

Computational fluid dynamics simulations of airflow through the nasal passages of rhinolophoid bats

The Anatomical Record, EarlyView.
Abstract The nasal passages of bats that emit their echolocation call through their nostrils have adapted for sound emission as well as standard respiratory and olfactory functions. Rhinolophids, hipposiderids and rhinonycterids all use a high duty cycle (HDC) echolocation strategy.
Carley Goodwin, Jason M. Bourke, Daisuke Koyabu, Kyle N. Armstrong, Vuong T. Tu, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Laura A. B. Wilson   +7 more
wiley   +1 more source

Do Ultraconservative Access Cavities Hinder Endodontic Reintervention in Mandibular Incisors? A Laboratory Investigation

International Journal of Dentistry
This study assessed the influence of the type of endodontic access cavity on endodontic reintervention. Twenty mandibular central incisors were distributed into two groups (n = 10): TradAC group—traditional access cavities and UltraAC.Inc group ...
Caroline Meurer Luiz, Taynara Santos Goulart, Ketillyn da Silva Magalhães, Gilmar da Rosa Souza Junior, Lucas da Fonseca Roberti Garcia, Josiane de Almeida   +5 more
doaj   +1 more source

Assessment of Treatment Quality Risk Factors Influencing the Radiographic Detection of Apical Periodontitis in Root-Filled Teeth: A Retrospective CBCT Analysis

European Endodontic Journal
Objective: This study aimed to assess the treatment quality factors associated with the risk of radiographic detection of apical periodontitis (AP) in root-filled teeth (RFT) on CBCT images.
Noor Hayder Fadhil, Ahmed Hamid Ali, Raghad Abdulrazzaq Al Hashimi, Omar Sabri Al-qathi, Federico Foschi   +4 more
doaj   +1 more source

Postcranial anatomy and osteohistology of an early prozostrodont cynodont from the Upper Triassic of Brazil

The Anatomical Record, EarlyView.
Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti, Lívia Roese‐Miron, Brodsky Dantas Macedo Farias, Marina Bento Soares, Leonardo Kerber   +4 more
wiley   +1 more source

CD8+ T cell memory is sustained in mice by hepatic stellate cells

Hepatology, EarlyView., 2022
HSC role in memory CD8+ T cell maintenance. Abstract Background and Aims Long‐lasting immunological memory is the ultimate goal of vaccination. Homeostatic maintenance of memory CD8+ cytotoxic T cells (MemCD8TCs) is thought to be mediated by IL‐15/IL‐15R heterodimer (15HD)‐expressing myeloid cells.
Yi‐Ting Chen, Yu‐Chia Su, Yee‐Ern Or, Chin‐Fu Cheng, John T. Kung   +4 more
wiley   +1 more source

Inter-appointment medication with calcium hydroxide in routine cases of root canal therapy

, 2015
This chapter discusses the use of an inter-appointment application of calcium hydroxide in the endodontic treatment of teeth with apical periodontitis, from a historic and evidence-based perspective.
Bergenholtz, Gunnar,, Torneck, Calvin, Kishen, Anil   +2 more
core  

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson, Alison M. Murray, Donald B. Brinkman   +2 more
wiley   +1 more source

On root-filling quality in general dental practice [PDF]

, 2016
In Sweden, 250,000 root fillings are performed every year. The outcome of root canal treatment (RCT) is strongly correlated to the technical quality of the root filling.
Dahlström, Lisbeth
core   +1 more source

Male reproductive system in stenopodidean shrimps: Unveiling basal reproductive traits in shrimp‐like Pleocyemata (Stenopodidae and Spongicolidae)

The Anatomical Record, EarlyView.
Abstract Stenopodidea represents one of the basal lineages within Pleocyemata, yet the male reproductive system (MRS) of this group remains poorly understood, with limited information available regarding its morphology and function. This study provides the first detailed description of the MRS in four stenopodidean shrimp species from two families ...
Caio Santos Nogueira, Lucas Rezende Penido Paschoal, Fernando José Zara   +2 more
wiley   +1 more source

Frequency of apical periodontitis in root‐filled teeth restored with post and core: A 5‐year retrospective study

Clinical and Experimental Dental Research
Background In conjunction with post placement in root‐filled teeth with periapical healthy conditions, root canal retreatment may be performed to improve the seal of the root canal.
Louise Johansson, Jakob Jonsson Sjögren, Anders Wirén, Alf Eliasson, Fredrik Frisk   +4 more
doaj   +1 more source