Results 101 to 110 of about 174,436 (383)

Motor cortical excitability and pre‐supplementary motor area neurochemistry in healthy adults with substantia nigra hyperechogenicity

Journal of Neuroscience Research, Volume 101, Issue 2, Page 263-277, February 2023., 2023
Substantia nigra (SN) hyperechogenicity, viewed with transcranial ultrasound, is a risk marker for Parkinson's disease. SN hyperechogenicity in healthy older adults is associated with changes in the excitability of specific motor cortical circuitry. These changes are unrelated to glutamate levels in the pre‐supplementary motor area (pre‐SMA).
Gabrielle Todd, Caroline D. Rae, Janet L. Taylor, Nigel C. Rogasch, Jane E. Butler, Michael Hayes, Robert A. Wilcox, Simon C. Gandevia, Karl Aoun, Adrian Esterman, Simon J. G. Lewis, Julie M. Hall, Elie Matar, Jana Godau, Daniela Berg, Christian Plewnia, Anna‐Katharina von Thaler, Clarence Chiang, Kay L. Double   +18 more
wiley   +1 more source

Intergrated Segmentation and Detection Models for Dentex Challenge 2023 [PDF]

arXiv, 2023
Dental panoramic x-rays are commonly used in dental diagnosing. With the development of deep learning, auto detection of diseases from dental panoramic x-rays can help dentists to diagnose diseases more efficiently.The Dentex Challenge 2023 is a competition for automatic detection of abnormal teeth along with their enumeration ids from dental panoramic
arxiv  

Differences of patients with Angle class I type 1 profile before and after treated with removable orthodontic appliance

Padjadjaran Journal of Dentistry, 2017
Introduction: Children with bad habit and the persistence of deciduous teeth can caused malposition of anterior permanent teeth or Angle Class I Type 1 malocclusion. One of the curative treatment is removable orthodontic appliance.
Novita Asti Nada, N.R.Yuliawati Zenab, Isnaniah Malik   +2 more
doaj   +1 more source

Accurate 3D Prediction of Missing Teeth in Diverse Patterns for Precise Dental Implant Planning [PDF]

arXiv, 2023
In recent years, the demand for dental implants has surged, driven by their high success rates and esthetic advantages. However, accurate prediction of missing teeth for precise digital implant planning remains a challenge due to the intricate nature of dental structures and the variability in tooth loss patterns.
arxiv  

The dental arch form revisited.

The Angle orthodontist, 2001
Recently, the beta function has been shown to be an accurate mathematical model of the human dental arch. In this research, we tried to find the equation of a curve that would be similar to the generalized beta function curve and at the same time could represent tapered, ovoid, and square dental arches.
Hassan Noroozi, Tahereh Hosseinzadeh Nik, Reza Saeeda   +2 more
openaire   +3 more sources

Dosage‐dependent effects of FGFR2W290R mutation on craniofacial shape and cellular dynamics of the basicranial synchondroses

The Anatomical Record, EarlyView.
Abstract Craniosynostosis is a common yet complex birth defect, characterized by premature fusion of the cranial sutures that can be syndromic or nonsyndromic. With over 180 syndromic associations, reaching genetic diagnoses and understanding variations in underlying cellular mechanisms remains a challenge.
Heather A. Richbourg, Marta Vidal‐García, Katherine A. Brakora, Jay Devine, Risa Takenaka, Nathan M. Young, Siew‐Ging Gong, Amanda Neves, Benedikt Hallgrímsson, Ralph S. Marcucio   +9 more
wiley   +1 more source

Relationship Between Dental Arch Dimensions and Bite Force: A Pilot Study

Cakradonya Dental Journal
Objectives: This study aims to assess the possible association between dental arch measurements and average and maximum bite forces.  Materials and Methods: A total of 41 individuals (mean age 22.4± 1.6 years) were recruited from dental students and ...
Talat Al-Gunaid, Adel Suliman Alrhile, Rayan Humaidan Alharbi, Abdullah Ahmad Almalki, Lama Thalat Al-Gunaid, Isao Saito   +5 more
doaj   +1 more source

Tooth size and dental arch dimensions in different types of crowding in Malay population [PDF]

, 2018
The aim of this research is compare tooth size and dental arch dimensions between different types of crowding i.e. mild, moderate, and severe crowding, in the Malaysian population.
Saeed, Nazik Abdullah Mustafa
core  

Who was the real sabertooth predator: Thylacosmilus or Thylacoleo?

The Anatomical Record, EarlyView.
Abstract Sabertoothed mammalian predators, all now extinct, were almost exclusively feloid carnivorans (Eutheria, Placentalia): here a couple of extinct metatherian predators are considered in comparison with the placental sabertooths. Thylacosmilus (the “marsupial sabertooth”) and Thylacoleo (the “marsupial lion”) were both relatively large (puma ...
Christine M. Janis
wiley   +1 more source

Method to classify dental arch forms

American Journal of Orthodontics and Dentofacial Orthopedics, 2011
The aim of this study was to propose a method to classify dental arch forms of subjects with normal occlusion into several types that can ensure both goodness of fit and clinical application.We selected 306 subjects with normal occlusion from 15,836 young adults, recorded 14 reference points that defined the distance between 2 arch forms as the area ...
Associate professor, Department of Orthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea ( host institution ), Lee, Shin-Jae ( author ), Lee, Sungim ( author ), Lim, Johan ( author ), Park, Heon-Jin ( author ), Wheeler, Timothy T. ( UF author )   +5 more
openaire   +4 more sources