Results 61 to 70 of about 74,075 (328)

Comparison of the accuracy of voxel based registration and surface based registration for 3D assessment of surgical change following orthognathic surgery [PDF]

, 2014
Purpose: Superimposition of two dimensional preoperative and postoperative facial images, including radiographs and photographs, are used to evaluate the surgical changes after orthognathic surgery.
Almukhtar, Anas, Ayoub, Ashraf, Ju, Xiangyang, Khambay, Balvinder, McDonald, James   +4 more
core   +2 more sources

Non-rigid CT/CBCT to CBCT registration for online external beam radiotherapy guidance [PDF]

Physics in Medicine & Biology, 2017
Image-guided external beam radiotherapy (EBRT) allows radiation dose deposition with a high degree of accuracy and precision. Guidance is usually achieved by estimating the displacements, via image registration, between cone beam computed tomography (CBCT) and computed tomography (CT) images acquired at different stages of the therapy.
Cornel Zachiu, Baudouin Denis de Senneville, Rob H N Tijssen, Alexis N T J Kotte, Antonetta C Houweling, Linda G W Kerkmeijer, Jan J W Lagendijk, Chrit T W Moonen, Mario Ries   +8 more
openaire   +4 more sources

Crestal approach for repair of oroantral bone defects and subsequent implant placement

Clinical Advances in Periodontics, EarlyView.
Abstract Background Oroantral communication (OAC) can occur after a dental extraction. Occasionally, bony defects may persist despite successful soft tissue closure of the OAC. The absence of bone in these areas poses challenges for dental implant placement.
Min Yang, Miriam Ting, Rodrigo Neiva, Jonathan Korostoff   +3 more
wiley   +1 more source

Optimizing dual energy cone beam CT protocols for preclinical imaging and radiation research [PDF]

, 2017
Objective: The aim of this work was to investigate whether quantitative dual-energy CT (DECT) imaging is feasible for small animal irradiators with an integrated cone-beam CT (CBCT) system.
Almeida, Isabel P, Descamps, Benedicte, Granton, Patrick V, Landry, Guillaume, Schyns, Lotte E J R, van Hoof, Stefan J, Vanhove, Christian, Verhaegen, Frank   +7 more
core   +1 more source

Guided transpositional bone blocks in esthetic zone: Surgical technique and case report

Clinical Advances in Periodontics, EarlyView.
Abstract Background The ultimate objective of implant dentistry is to position the implant in a three‐dimensional, prosthetic‐driven location. This case highlights a guided approach for harvesting and positioning an autogenous bone block to restore a horizontal bone defect in the anterior maxilla.
Ming‐Fu Ye, Dumitru Chele, Javier Calatrava, Abdusalam Alrmali, Wen‐Xia Huang, Hom‐Lay Wang   +5 more
wiley   +1 more source

The time taken for retrieval of separated instrument and the change in root canal volume after two different techniques using CBCT: An in-vitro study

Indian Journal of Dental Research, 2021
Introduction: Retrieval of separated instrument from a root canal may lead to increased dentin loss and prolonged treatment time. Aim: The aim of this study was to evaluate the retrieval time and increase in root canal volume after instrument retrieval ...
Balu Santhosh Kumar, Sridevi Krishnamoorthy, Sandhya Shanmugam, Angambakkam Rajasekharan PradeepKumar   +3 more
doaj   +1 more source

A Methodology for Three-Dimensional Quantification of Anterior Tooth Width [PDF]

, 2011
The use of cone-beam computed tomography (CBCT) technology has been shown to be more accurate in measuring individual incisor tooth widths than the use of wax exemplars. There were fewer differences by investigators using CBCT than others using an F-test
Ahn, Kwang Woo, Blinka, Daniel D., Johnson, L. Thomas, Radmer, Thomas W., Visotcky, Alexis D., Wirtz, Thomas   +5 more
core   +1 more source

The Birmingham Boron Neutron Capture Therapy (BNCT) project : developments towards selective internal particle therapy [PDF]

, 2011
This paper will review progress on two aspects of the Birmingham BNCT project. Firstly on evaluation of the effects of high and low LET radiations when delivered simultaneously, and secondly on attempts to optimise delivery of the boron carrier compound ...
Boddy, A., Charles, M. W., Croswell, G., Cruickshank, G. S., Detta, A., Doran, J., Elliott, M., Ford, S., Ghani, Z., Graham, N., Green, S., Halbert, G., Hill, M., James, N. D., Jones, B., King, A., Lockyer, N., Mill, A. J., Ngoga, D., Phoenix, B., Sheehan, T. M. T., Thompson, J., Vickerman, J., Wojnecki, C.   +23 more
core   +1 more source

Reliability of CBCT in the diagnosis of dental asymmetry [PDF]

Dental Press Journal of Orthodontics, 2014
Objective: The aim of this study was to validate a method used to assess dental asymmetry, in relation to the skeletal midline, by means of CBCT. Methods: Ten patients who had CBCT scans taken were randomly selected for this study. Five different observers repeated 10 landmarks (x, y and z variables for each) and 12 linear measurements within 10 ...
Ruellas, Antônio Carlos de Oliveira, Koerich, Leonardo, Baratieri, Carolina, Mattos, Claudia Trindade, Alves Junior, Matheus, Brunetto, Daniel, Eidson, Lindsey   +6 more
openaire   +6 more sources

Preservation therapy for vertically fractured teeth with periodontal tissue regeneration using FGF‐2

Clinical Advances in Periodontics, EarlyView.
Abstract Background Vertically fractured teeth often have a poor prognosis, and extraction is considered the most predictable treatment. Conventional management has consisted of preservation therapy involving extraction, bonding, root restoration, and replantation of fractured teeth.
Masaichiro Iwasaki, Masahide Takedachi, Keigo Sawada, Koji Miki, Shinya Murakami   +4 more
wiley   +1 more source