Results 71 to 80 of about 999,686 (281)

Apexification with white MTA in an immature permanent tooth with dens invaginatus

open access: yesBrazilian Journal of Oral Sciences, 2015
Dens invaginatus, also known as “dens in dente”, is a developmental dental anomaly resulting in an invagination of the enamel organ into the dental papilla. These cases present technical difficulties to the root canal treatment.
Anderson de Oliveira Paulo   +4 more
doaj   +1 more source

Intraspecific variation in M1 enamel development in modern humans: implications for human evolution [PDF]

open access: yes, 2008
The timing and sequence of enamel development, as well as enamel thickness, was documented for individual cusps (protoconid, hypoconid,metaconid, entoconid) in 15 unworn permanent lower first molars (M1s) from a sample of modern human juveniles.
Patrick Mahoney, Mahoney, Patrick
core   +1 more source

Regenerative therapy for the permanent immature teeth: A long term study. An original research

open access: yes, 2023
Introduction: Endodontics faces several clinical difficulties while treating young necrotic permanent teeth. The use of regenerative endodontic procedures (REPs) enables apical closure, improved canal wall thickness, and root growth.
P B Sabiha   +6 more
core   +1 more source

First Record of Tasmanian Devils in the Pilbara: Late Quaternary Subfossils From Juukan Gorge, Puutu Kunti Kurrama Country, and Insights Into Human—Faunal Relationships and Extinction

open access: yesArchaeology in Oceania, EarlyView.
ABSTRACT This study presents the first unequivocal evidence for the presence of Tasmanian devils (Sarcophilus harrisii) in the Pilbara region of northwestern Australia, based on material recovered from archaeological excavations at Juukan Gorge on Puutu Kunti Kurrama and Pinikura country.
Timothy J. Churchill   +5 more
wiley   +1 more source

A man of his time: Joseph Leidy, racial science, and American anatomy

open access: yesAnatomical Sciences Education, EarlyView.
Abstract Professor Joseph Leidy M.D. was arguably the most influential anatomist in the nineteenth‐century United States, having written over 500 publications and serving as the first President of the Association of American Anatomists. While many of Leidy's diverse contributions to American science and medicine are well‐known, scholars have said much ...
Christopher D. E. Willoughby
wiley   +1 more source

Healing of an immature permanent tooth with large periapical radiolucency, treated with autologous platelet-rich fibrin aided regeneration

open access: yesIndian Journal of Dental Sciences
Presenting two cases of platelet-rich fibrin (PRF) aided regenerative treatment, performed in immature permanent teeth with large periapical lesions.
Preet Kanwal Atwal   +2 more
doaj   +1 more source

Revascularization of Necrotic Immature Permanent Teeth: An Update

open access: yesJournal of Operative Dentistry & Endodontics, 2016
ABSTRACT In the recent years, there is a paradigm shift in the management of necrotic immature permanent teeth, with most of these teeth being treated by revascularization rather than conventional apexification procedure. Current regenerative endodontic protocols (REP) emphasizes the need to have a disinfection protocols that will enable good ...
openaire   +1 more source

Optimized micro‐sized cell sphere‐matrix niche co‐aggregates promote efficient oral and craniomaxillofacial bone regeneration

open access: yesBMEMat, EarlyView.
The construct of cell‐niche co‐aggregates (GelMA‐SHED sphere‐DDMPs) promotes cranial and periodontal bone regeneration and ensures angiogenic‐osteogenic coupling by downregulating miR‐34c‐5p to enhance the expression of NOTCH1 and its intracellular domain (NICD).
Xiao‐Hui Zhang   +23 more
wiley   +1 more source

The use of platelet rich plasma in the treatment of immature tooth with periapical lesion: a case report

open access: yesRestorative Dentistry & Endodontics, 2014
This study describes the treatment of an immature permanent tooth with periapical lesion which was treated with regenerative approach using platelet rich plasma (PRP).
Günseli Güven Polat   +5 more
doaj   +1 more source

Evidence for adaptive explanations of semelparity in animals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher   +1 more
wiley   +1 more source

Home - About - Disclaimer - Privacy