Deqian Zhang

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INTRODUCTION This study was conducted to evaluate the effect of a new ultrasonic tip (Jetip) for root-end preparation. METHODS A total of 80 single-rooted teeth were endodontically treated, and the apical 3 mm of the root apex was resected. Teeth were randomly distributed into 2 experimental groups according to the ultrasonic tips used to prepare the(More)
INTRODUCTION Human dental pulp cells (hDPCs) can specifically generate reparative dentin under external stimuli, and numerous mechanisms are involved in their odontogenic differentiation process. Ten-eleven translocation 1 (TET1) is a recently discovered DNA dioxygenase that plays important roles in promoting DNA demethylation and transcriptional(More)
INTRODUCTION Human dental pulp cells (hDPCs) comprise a heterogeneous cell population that possesses the capacity to differentiate into osteoblasts and plays an important role in reparative dentinogenesis. 5-Aza-2'-deoxycytidine (5-Aza-CdR), a DNA methyltransferase inhibitor, is known to be involved in cell differentiation. However, its role in the(More)
It is an important means to study the electrical activity of the brain's nerve cells by exploring physiological information of the EEGs from the frequency domain. The gravity frequency is one of the global parameters with using this method. We used the multitaper spectrum method (MTM) spectrum estimation method of good performance to calculate the EEG(More)
Poor and monotonous work could easily lead to a decrease of arousal level of the monitoring work personnel. In order to improve the performance of monitoring work, low arousal level needs to be recognized and awakened. We proposed a recognition method of low arousal by the electroencephalogram (EEG) as the object of study to recognize the low arousal level(More)
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