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Student Theses, Dissertations and Capstones

Cephalometrics

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Full-Text Articles in Dentistry

Cephalometric Regional Superimpositions -- Digital Vs. Analog Accuracy And Precision : 3. The Cranial Base, Douglas Shaw Jan 2014

Cephalometric Regional Superimpositions -- Digital Vs. Analog Accuracy And Precision : 3. The Cranial Base, Douglas Shaw

Student Theses, Dissertations and Capstones

Objective. To assess the accuracy and precision in measurement of pairwise implant displacement across three methods of cranial base superimposition. Background. Cephalometric superimposition is the principal radiographic method used to evaluate changes within the craniofacial skeleton. Many studies have examined the accuracy of software intended to produce cephalometric superimposition. Such studies have utilized anatomic landmarks, selected by the respective software manufacturers, as registration points for constructing superimpositions and their analysis. As a result, these studies are only as accurate as the stability and validity of anatomic registration landmarks used. To our knowledge, no other study has utilized metallic implants to …


Cephalometric Regional Superimpositions -- Digital Vs. Analog Accuracy And Precision : 1. The Maxilla, Glenn Krieger Jan 2014

Cephalometric Regional Superimpositions -- Digital Vs. Analog Accuracy And Precision : 1. The Maxilla, Glenn Krieger

Student Theses, Dissertations and Capstones

Introduction: The purpose of this study was to measure the displacement of defined dental structures, as a result of superimposition of cephalometric images across paired time-points by both digital and analog methods. The magnitudes of such displacements across three methods of superimposition were compared to each other and to a reference method constructed by registering superimposed cephalometric images on tantalum markers implanted in the study participants' maxillae. The defined dental structures were: 1) First molar mesial contact point; 2) First molar apical root bisection; 3) Central incisor root apex; 4) Central incisor crown incisal edge. Methods: Lateral cephalograms of 22 …