Results 21 to 30 of about 3,986 (225)

Comparison of Different Types of Palatal Expanders: Scoping Review

Children, 2023
Maxillary bone contraction is caused by genetics or ambiental factors and is often accompanied by dental crowding, with the possibility of canine inclusion, crossbite, class II and III malocclusion, temporomandibular joint disorder, and obstructive sleep
Angelo Michele Inchingolo, Assunta Patano, Matteo De Santis, Gaetano Del Vecchio, Laura Ferrante, Roberta Morolla, Carmela Pezzolla, Roberta Sardano, Leonardo Dongiovanni, Francesco Inchingolo, Ioana Roxana Bordea, Andrea Palermo, Alessio Danilo Inchingolo, Gianna Dipalma   +13 more
doaj   +1 more source

Evaluation of Initial Stress Distribution and Displacement Pattern of Craniofacial Structures with 3 Different Rapid Maxillary Expansion Appliance Models: A 3-dimensional Finite Element Analysis

Turkish Journal of Orthodontics, 2021
Objective: This study aimed to describe the displacement of anatomical structures and the stress distributions caused by the Hyrax, fan-type, and double-hinged expansion screws via the 3-dimensional (3D) finite element method (FEM).Methods: The 3D FEM ...
Merve Sucu, Berza Yilmaz, Sabri İlhan Ramoğlu   +2 more
doaj   +1 more source

Stable isotope analyses of rock hyrax faecal pellets, hyraceum and associated vegetation in southern Africa: Implications for dietary ecology and palaeoenvironmental reconstructions [PDF]

, 2016
International audienceRock hyrax middens are important palaeoenvironmental archives in southern Africa. Carbon and nitrogen isotope measurements on middens (hyraceum) are key components of climate reconstructions, but their interpretations require ...
Arnoud Boom (5066996), Boom, Arnoud, Andrew S. Carr (7602293), Javier Medina-Sanchez (7697468), Carr, Andrew S, Chase, Brian M., Brian M. Chase (3262695), Carr, Andrew S., Chase, Brian M, Medina-Sanchez, Javier   +9 more
core   +1 more source

Community harvesting of trees used as dens and for food by the tree hyrax (Dendrohyrax arboreus) in the Pirie forest, South Africa

Koedoe: African Protected Area Conservation and Science, 2018
Forests in South Africa are harvested by local communities for multiple purposes and this affects the animals that inhabit them. The tree hyrax (Dendrohyrax arboreus) has a restricted distribution and utilises various tree species as dens and a source of
Elizabeth J. Opperman, Michael I. Cherry, Nokwanda P. Makunga   +2 more
doaj   +1 more source

How elephants beat cancer

eLife, 2016
Elephants have significantly reduced their risk of cancer by duplicating an important gene called TP53.
Stephen J Gaughran, Evlyn Pless, Stephen C Stearns   +2 more
doaj   +1 more source

Cancer suppression and the evolution of multiple retrogene copies of TP53 in elephants: A re‐evaluation

Evolutionary Applications, 2022
Evolving to become bigger and/or longer lived should increase cancer susceptibility, but this predicted increase is not observed, a contradiction named Peto's paradox.
Leonard Nunney
doaj   +1 more source

Evolving southwest African response to abrupt deglacial North Atlantic climate change events [PDF]

, 2015
Climate change during the last deglaciation was strongly influenced by the „bipolar seesaw‟, producing antiphase climate responses between the North and South Atlantic.
Stager, J. Curt, Reimer, Paula J., Pedro, Joel Benjamin, Carre, Matthieu, Arnoud Boom (5066996), M. Carré (7649387), Pedro, Joel B., Chase, Brian M., Carré, Andrew S., Carr, Matthieu, J. B. Pedro (7649393), Meadows, Michael E., M. E. Meadows (7649372), Carré, Matthew, B. M. Chase (7649369), Chevalier, Manuel, Chase, Brian, Boom, Arnoud, Andrew S. Carr (7602293), M. Chevalier (7649390), J. Stager (7649396), P. J. Reimer (7649399), Reimer, Paula J.; id_orcid, Stager, J.Curt, Carr, Andrew S.   +24 more
core   +1 more source

Biomechanical behavior of three maxillary expanders in cleft lip and palate: a finite element study [PDF]

Brazilian Oral Research
: This study evaluated the stress distribution in the dentoalveolar and palatal bone structures during maxillary expansion in a 17-year-old male patient with bilateral cleft lip and palate (BCLP) using expanders with dental (HYRAX) and skeletal anchorage
Angela Maria Bautista Patiño, Monise de Paula Rodrigues, Roberto Sales Pessoa, Salomón Yezioro Rubinsky, Ki Beom Kim, Carlos José Soares, Guilherme de Araújo Almeida   +6 more
doaj   +1 more source

Dentoskeletal Effect Induced by Hyrax Screw Used in Maxillary Molar Distalization: Before–After Study in Class II Patients [PDF]

Iranian Journal of Orthodontics, 2014
Background: Maxillary molar distalization with intraoral or extraoral appliances is a common treatment modality in non-extraction treatment plan. Objectives: In this study, an appliance with hyrax screw was used for maxillary molar distalization.
Valiollah Arash, Farhad Sobouti, Sina Haghanifar, Iman Dabbaghian, Ali Bijani, Reza Alizadeh Navaei   +5 more
doaj   +1 more source

Discrepâncias transversais: disjuntor Haas versus disjuntor Hyrax – revisão narrativa [PDF]

, 2022
Introdução: A técnica mais utilizada e amplamente aceite, para corrigir a discrepância transversal na maxila é a Expansão Rápida da Maxila, que tem como objetivo a expansão maxilar com a ajuda dos aparelhos de expansão.
Matos, Alessandra
core