Results 31 to 40 of about 71,509 (145)

Two-Stage Mesh Deep Learning for Automated Tooth Segmentation and Landmark Localization on 3D Intraoral Scans [PDF]

, 2021
Accurately segmenting teeth and identifying the corresponding anatomical landmarks on dental mesh models are essential in computer-aided orthodontic treatment. Manually performing these two tasks is time-consuming, tedious, and, more importantly, highly dependent on orthodontists' experiences due to the abnormality and large-scale variance of patients'
arxiv   +1 more source

Miniscrew-assisted rapid palatal expansion (MARPE): how to achieve greater stability. In vitro study

Dental Press Journal of Orthodontics, 2021
Objective: Assess the influence of mono- and bicortical anchorage and diameter of mini-implants (MIs) on the primary stability of these devices. Methods: 60 self-drilling MIs were distributed in six groups according to diameter (1.5mm, 1.8mm or 2.0mm ...
Flávio de Mendonça COPELLO, Daniel Paludo BRUNETTO, Carlos Nelson ELIAS, Matheus Melo PITHON, Raildo Silva COQUEIRO, Amanda Cunha Regal de CASTRO, Eduardo Franzotti SANT’ANNA   +6 more
doaj   +1 more source

Insertion angle of orthodontic mini-implants and their biomechanical performance: finite element analysis

Revista de Odontologia da UNESP
ObjectiveThe aim of this study was to assess the stresses and strains generated after the application of two types of forces (traction of 200 gf and torsion of 20 N.cm) in two types of orthodontic mini-implants inserted at different (45° and 90° to the ...
Vinícius de Oliveira Rossi Arantes, Cassia Belloto Corrêa, Nadia Lunardi, Rodolfo Jorge Boeck Neto, Rubens Spin-Neto, Eloisa Marcantonio Boeck   +5 more
doaj   +1 more source

Herbst appliance with skeletal anchorage versus dental anchorage in adolescents with Class II malocclusion: study protocol for a randomised controlled trial

Trials, 2017
Background The Herbst appliance is an orthodontic appliance that is used for the correction of class II malocclusion with skeletal discrepancies. Research has shown that this is effective.
Klaus Barretto dos Santos Lopes Batista, Tatiana Lima, Nathália Palomares, Felipe de Assis Carvalho, Cátia Quintão, José Augusto Mendes Miguel, Yin-Ling Lin, Ting-Li Su, Kevin O’Brien   +8 more
doaj   +1 more source

Skeletal Anchorage Utilising Bone Plates

Australasian Orthodontic Journal, 1985
Skeletal anchorage may be obtained by bone plates in the ramus, to provide the reciprocal forces required in some orthodontic procedures. Distallising of a lower molar in a crowded buccal segment is described in a Case Report.
Jenner John D., Fitzpatrick Barry N.
doaj   +1 more source

OrthoGAN:High-Precision Image Generation for Teeth Orthodontic Visualization [PDF]

arXiv, 2022
Patients take care of what their teeth will be like after the orthodontics. Orthodontists usually describe the expectation movement based on the original smile images, which is unconvincing. The growth of deep-learning generative models change this situation.
arxiv  

Bone‐targeted hybrid extracellular vesicles for alveolar bone regeneration

Interdisciplinary Medicine, EarlyView.
Prolonged tooth loss causes a blade‐like narrowing of the alveolar bone, severely impairing chewing function and aesthetics and complicating subsequent orthodontic or restorative treatments. Bone morphogenetic protein‐2 (BMP‐2) can induce bone formation, but may cause many side effects in vivo due to insufficient cell targeting.
Anqi Liu, Gang Yang, Yijie Zhao, Jiajia Deng, Jialiang Liu, Kairun Zhang, Li Mei, Yan Liu, Tingjiao Liu   +8 more
wiley   +1 more source

Análise do processo de corrosão na falha clínica de mini-implantes ortodônticos

Revista de Odontologia da UNESP
Resumo Introdução Mini-implantes ortodônticos são dispositivos de ancoragem confeccionados à base de titânio, possuindo uma camada de óxido de titânio, que desempenha função importante na resistência à corrosão.
Marcelo Santos BAHIA, Ana Luiza Santiago LOPES, Paula Liparini CAETANO, Robert Willer Farinazzo VITRAL, Marcio José da Silva CAMPOS   +4 more
doaj   +1 more source

Zygomatic-maxillary cortical bone thickness in hyper, normo and hypodivergent patients

Dental Press Journal of Orthodontics, 2021
Objective: The aim of this study was to evaluate the thickness of the zygomatic-maxillary cortical bone using computed tomography in different skeletal patterns.
Julyano Vieira da COSTA, Adilson L. RAMOS, Liogi IWAKI FILHO   +2 more
doaj   +1 more source

The Dual Roles of Lamin A/C in Macrophage Mechanotransduction

Cell Proliferation, EarlyView.
Compressive force can inhibit the expression of lamin A/C, SUN1 and SUN2 in macrophages. Lamin A deficiency may participate in mechanotransduction within macrophages through two distinct mechanisms. ABSTRACT Cellular mechanotransduction is a complex physiological process that integrates alterations in the external environment with cellular behaviours ...
Yao Wang, Sabine Ruf, Lei Wang, Thomas Heimerl, Gert Bange, Sabine Groeger   +5 more
wiley   +1 more source