A New Method of Measuring in vivo the Lens Transmittance, and Study of Lens Scatter, Fluorescence and Transmittance

1984 ◽  
Vol 16 (5) ◽  
pp. 246-255 ◽  
Author(s):  
Ran C. Zeimer ◽  
James M. Noth
Keyword(s):  
New Method ◽  
Lens Transmittance

scholarly journals Three-dimensional analysis of the root canal preparation with Reciproc Blue®, WaveOne Gold® and XP EndoShaper®: a new method in vivo

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Javier Caviedes-Bucheli ◽  
Nestor Rios-Osorio ◽  
Diana Usme ◽  
Cristian Jimenez ◽  
Adriana Pinzon ◽  
...  
Keyword(s):  
3D Reconstruction ◽  
Root Canal ◽  
Paired Comparison ◽  
Three Dimensional ◽  
New Method ◽  
Root Canal Preparation ◽  
Paired Data ◽  
Before And After ◽  
Student’S T

Abstract Background The purpose of this study was to evaluate the changes in canal volume after root canal preparation in vivo with 3 different single-file techniques (Reciproc-Blue®, WaveOne-Gold® and XP-EndoShaper®), with a new method using CBCT and 3D reconstruction. Methods In this prospective study, thirty human lower premolars from healthy patients were used, in which extraction was indicated for orthodontic reasons. All the teeth used were caries- and restoration-free with complete root development, without signs of periodontal disease or traumatic occlusion, and with only one straight canal (up to 25º curvature). Teeth were randomly divided into three different groups: Reciproc-Blue, WaveOne-Gold and XP-EndoShaper. CBCT scans before root canal preparation were used to create a 3D reconstruction with RHINOCEROS 5.0 software to assess the initial canal volume, and then compared with 3D reconstructions after canal preparation to measure the increase in canal volume. Student’s t test for paired data were used to determine statistically significant differences between the before and after canal volumes. Anova test was used to determine statistically significant differences in the percentage of canal volume increase between the groups and Tukey's post-hoc test were used to paired comparison. Results Reciproc-Blue showed the higher increase in canal volume, followed by WaveOne-Gold and XP-EndoShaper (p = 0.003). XP-EndoShaper did not show a statistically significant increase in canal volume after root canal preparation (p = 0.06). Conclusion With this model, Reciproc-Blue showed higher increase in root canal volume, followed by WaveOne-Gold, while XP-EndoShaper did not significantly increase root canal volume during preparation.

A New Method for Tissue Impedance Spectrometry and Its Initial Application in vivo

2014 ◽  
pp. 833-838
Author(s):  
M. Władziński ◽  
K. Wildner ◽  
S. Cygan ◽  
B. Grobelski ◽  
D. Pawełczak ◽  
...  
Keyword(s):  
New Method ◽  
Tissue Impedance ◽  
Initial Application

A new method for the in vivo volumetric measurement of the human hippocampus with high neuroanatomical accuracy

Hippocampus ◽  
2000 ◽  
Vol 10 (6) ◽  
pp. 752-758 ◽  
Author(s):  
J. Pantel ◽  
D. S. O'Leary ◽  
K. Cretsinger ◽  
H. J. Bockholt ◽  
H. Keefe ◽  
...  
Keyword(s):  
New Method ◽  
Volumetric Measurement ◽  
Human Hippocampus
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