Ann Wenzel

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OBJECTIVE The aim of this study was to compare the presence of voids in root fillings performed in oval and ribbon-shaped canals with two root filling techniques, lateral compaction technique (LCT) or hybrid technique (HT), a combination of a gutta-percha masterpoint and thermoplastic gutta-percha. Furthermore, the obturation time for the two techniques was(More)
The aim was to compare the quality of root canal fillings performed with the single-cone and lateral compaction technique. Thirty-six canals in extracted molars were filled with ISO-standardized gutta-percha points, .02 taper, by using the lateral compaction technique; 38 were filled with one gutta-percha point, .04 taper, by using the single-cone(More)
Previous studies suggests that cone beam computerized tomography (CBCT) images could provide reliable information regarding the fate of bone grafts in the maxillofacial region, but no systematic information regarding the standardization of CBCT settings and properties is available, i.e., there is a lack of information on how the images were generated,(More)
The aim of the study was to evaluate the influence of the number of surfaces (N(SURF)) and the number of observers (N(OBS)) on the statistical power of a study comparing the diagnostic accuracies of radiographic systems used for approximal caries lesion detection. A data set consisting of 338 surfaces examined by 10 independent observers using four(More)
The objective of this study was to make a systematic review on the impact of voxel size in cone beam computed tomography (CBCT)-based image acquisition, retrieving evidence regarding the diagnostic outcome of those images. The MEDLINE bibliographic database was searched from 1950 to June 2012 for reports comparing diverse CBCT voxel sizes. The search(More)
The aim of this study was to evaluate whether distraction induced by video glasses had an effect on the perceived intensity of pain and unpleasantness during dental scaling compared with the effect of nitrous oxide (N(2)O) analgesia. The pain stimulus was dental scaling (removal of dental calculus) with an ultrasonic scaler. As a standardised, non-dental(More)
OBJECTIVE Compare video observation (VO) with a novel three-dimensional registration method, based on an accelerometer-gyroscope (AG) system, to detect patient movement during CBCT examination. The movements were further analyzed according to complexity and patient's age. METHODS 181 patients (118 female/63 male; age average 30 years, range: 9-84), in(More)
in radiology include images and questions and answers to previous exams ( The lectures that my co-workers and I give can be seen as pdf files the day after the lecture and thus be reviewed by students at any time (the material is all in Danish). The new DOS-based computers that appeared on the market in the middle of the 1980s(More)
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