Zobrazeno 1 - 10
of 170
pro vyhledávání: '"Gerald Nelson"'
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract Anchoring miniscrews used for a tissue bone borne maxillary expander (C-expander) can fail if they contact tooth roots or perforate the maxillary sinus. Cone beam computed tomography images were reviewed retrospectively to evaluate the geome
Externí odkaz:
https://doaj.org/article/bf0d13e97131447aa3a60265ef072a3b
Autor:
Jin-Young Choi, Song Hee Oh, Seong-Hun Kim, Hyo-Won Ahn, Yoon-Goo Kang, Yong-Suk Choi, Yoon-Ah Kook, Gerald Nelson
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract Some craniofacial diseases or anatomical variations are found in radiographic images taken for other purposes. These incidental findings (IFs) can be detected in orthodontic patients, as various radiographs are required for orthodontic diagn
Externí odkaz:
https://doaj.org/article/3407c58c77f54d47b531ffc7f8c6116f
Publikováno v:
Progress in Orthodontics, Vol 19, Iss 1, Pp 1-9 (2018)
Abstract Background Accurate root position is integral for successful orthodontic treatment. Current methods of monitoring root position are either inaccurate, exhibit poor resolution, or use relatively large amount of radiation relative to the benef
Externí odkaz:
https://doaj.org/article/ae0f4731175b4c91915787a29c7dcc7d
Publikováno v:
Progress in Orthodontics, Vol 19, Iss 1, Pp 1-7 (2018)
Abstract Background This study was performed to evaluate the treatment effects of the antero-posterior lingual retractor (APLR), focusing on the 3-dimensional (3D) tooth movement of the maxillary anterior teeth and their alveolar bone levels. Methods
Externí odkaz:
https://doaj.org/article/f8d75a7bcbc34d44b7344e6e0b4d2bbe
Publikováno v:
Sensors, Vol 21, Iss 11, p 3798 (2021)
The orthodontic miniscrew is driven into bone in a clockwise direction. Counter-clockwise rotational force applied to the implanted miniscrew can degrade the stability. The purpose of this three-dimensional finite element study was to figure out the
Externí odkaz:
https://doaj.org/article/cb496fad62634a3eabf01b351468f51d
Autor:
Song Hee Oh, Sae Rom Lee, Jin Young Choi, Yong Suk Choi, Seong Hun Kim, Hong Cheol Yoon, Gerald Nelson
Publikováno v:
Sensors, Vol 21, Iss 5, p 1741 (2021)
The aim of this study was to present an optimal diagnostic protocol by comparing and analyzing a conventional examination and the quantitative light-induced fluorescence (QLF) technique. Selected were 297 teeth of 153 patients to take QLF images and
Externí odkaz:
https://doaj.org/article/e0afe693e27344b781a04b3e9f87c389
Publikováno v:
Sensors, Vol 21, Iss 6, p 1964 (2021)
High orthodontic forces and various directions of applied forces can be associated with loosening of the screw anchorage in the bone. Screw designs have been modified to increase the stability of the miniscrews. This research evaluates the influence
Externí odkaz:
https://doaj.org/article/b3c12dbf3ef24870a81379a27c889015
Publikováno v:
Sensors, Vol 21, Iss 2, p 505 (2021)
This study was designed to develop and verify a fully automated cephalometry landmark identification system, based on multi-stage convolutional neural networks (CNNs) architecture, using a combination dataset. In this research, we trained and tested
Externí odkaz:
https://doaj.org/article/fb12e5d205464f77a6b56fedd5379c8e
Autor:
Kyoung Yeon Kim, Jin-Young Choi, Song Hee Oh, Hyung-Wook Moon, Seong-Hun Kim, Hyo-Won Ahn, Kyung A Kim, Gerald Nelson
Publikováno v:
Sensors, Vol 21, Iss 2, p 541 (2021)
The aim of this preliminary study was to evaluate the short-term changes of occlusal contacts and muscle activity after orthodontic treatment during the use of a multi-layer clear retainer. Evaluation was done with the T-scan and BioEMG systems. A to
Externí odkaz:
https://doaj.org/article/3cd4f34d969243bf9a618ed8ab34acff
Publikováno v:
Progress in Orthodontics, Vol 17, Iss 1, Pp 1-8 (2016)
Abstract Background The boundaries for orthodontic tooth movement are set by the bony support of the dentition. This study compares the mandibular anterior alveolar housing in individuals with low, average, and high mandibular plane angles before ort
Externí odkaz:
https://doaj.org/article/d0d6d5fd9c7a49868a10bdbd4d7b32d1