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Discover 17,836 clinical trials near Boston, Massachusetts. Find research studies in your area.
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NCT04427397
In this study, all subjects will be given an electric toothbrush. Half of the participants will be instructed on how to use the Sulcular Bristle Tip Technique (SBTT). The other half of participants will be asked to follow the brushing instructions in the user manual. The study's primary aim is to compare the use of the SBTT with an electric toothbrush in reducing bleeding on probing with the use of an electric toothbrush used without personal professional instruction.
NCT04099810
Most publication are basing RV volumes on images acquired from the apical window. However, some data have called the practice of basing these images on apical window into question. Moreover, despite our best efforts, we have been unable, in our laboratory to reliably visualize RV outflow from the apical view. Therefore, with an identified group of trained sonographers, we plan to conduct a head-to-head comparison of RV volumes acquired from these two windows (apical and subcostal), with comparison to gold-standard CMR.