Results 61 to 70 of about 66,194 (310)

The anatomy of the root apex: A review and clinical considerations in endodontics

open access: yesSaudi Endodontic Journal, 2013
Studies on the anatomy of the root apex are an area of interest to the endodontist; they have reported that the position of the apical constriction, apical foramen and the cemento-dentinal junction varies across the tooth types.
Osama S Alothmani   +2 more
doaj   +1 more source

Multidisciplinary Conservative Approach to Restore Mutilated Immature Maxillary Central Incisor with an Unusual Foreign Object in the Root Canal Space - A Rare Case Report [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2017
Restoration of mutilated tooth with immature apex in a young patient presents challenge in complete biomechanical preparation, achieving apical seal and post endodontic restoration.
MANOJ MAHADEO RAMUGADE   +3 more
doaj   +1 more source

Maxillary expansion in an animal model with light, continuous force [PDF]

open access: yes, 2018
Objectives: Maxillary constriction is routinely addressed with rapid maxillary expansion (RME). However, the heavy forces delivered by most RME appliances to expand the palate may lead to deleterious effects on the teeth and supporting tissues.
AlRasheed, Rawan   +6 more
core   +1 more source

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

open access: yesThe Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman   +4 more
wiley   +1 more source

Defining Properties of Neural Crest–Derived Progenitor Cells from the Apex of Human Developing Tooth [PDF]

open access: yesTissue Engineering Part A, 2008
The connective tissue of the human tooth arises from cells that are derived from the cranial neural crest and, thus, are termed as "ectomesenchymal cells." Here, cells being located in a pad-like tissue adjacent to the apex of the developing tooth, which we designated the third molar pad, were separated by the microexplant technique.
Degistirici, Ozer   +6 more
openaire   +3 more sources

Morphology of Root Canal Cross-sections of Resected Roots of First and Second Lower Molars [PDF]

open access: yes, 2004
Precise preparation of the root canal ostium with a view to hermetical closing with retrograde root filling is an important prognostic factor determining the success of the procedure of tooth resection.
Domagala, Agnieszka   +3 more
core   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Apex Resection and Retrograde Filling After Enucleation of Radicular Cyst : A Case Report

open access: yesCakradonya Dental Journal, 2013
Radicular cyst is a cyst at the apex of a non-vital tooth and is a sequel of pulp inflammation. The associated tooth is usually asymptomatic. Acute infectious episodes may cause pain.
Teuku Ahmad Arbi, Abdul Latif
doaj  

Intentional replantation with 180° rotation of a complicated crown-root fracture: A Case Report

open access: yesTrauma Case Reports, 2020
Complicated crown root fractures are mostly difficult to treat and have a poor prognosis. To restore the biological space, intentional replantation may be chosen when other immediate treatment options are not viable.
Sivadas Ganapathy   +3 more
doaj   +1 more source

A new species of Polyphylla Harris from peninsular Florida (Coleoptera: Scarabaeidae: Melolonthinae) with a key to species of the pubescens species group [PDF]

open access: yes, 2009
Polyphylla starkae Skelley, new species (Coleoptera: Scarabaeidae: Melolonthinae: Melolonthini), is described from peninsular Florida, USA.
Skelley, Paul E.
core   +1 more source

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