نتایج جستجو برای: apical extrusion
تعداد نتایج: 41435 فیلتر نتایج به سال:
BACKGROUND To maintain a protective barrier, epithelia extrude cells destined to die by contracting a band of actin and myosin. Although extrusion can remove cells triggered to die by apoptotic stimuli, to maintain constant cell numbers, epithelia extrude live cells, which later die by anoikis. Because transformed cells may override anoikis and survive after extrusion, the direction of extrusio...
The extrusion of intracanal debris as well irrigants is a regular occurrence during root canal therapy; nevertheless, this issue has not been satisfactorily resolved by any instrument or method to date. Even if it's always possible, shaping irrigation should reduce the likelihood apical much possible. This because flare-ups may result from irritation that directed towards periapical tissues. Du...
CLINICAL SIGNIFICANCE The apical extrusion of infected debris may have the potential to disrupt the balance between microbial aggression and host defense, resulting in incidents of acute inflammation. During preparation, irrigants and debris, such as bacteria, dentin filings and necrotic tissue may be extruded into the periradicular region leading to periapical inflammation and postoperative fl...
The role of P-glycoprotein (P-gp) in the basal-to-apical uptake and flux of L-3,4-dihydroxyphenylalanine (L-dopa) was studied in LLC-PK(1) and LLC-GA5 Col300 cells, a renal cell line expressing the human P-gp in the apical membrane. In the absence of verapamil, LLC-GA5 Col300 cells accumulate less calcein (0.5 microM) than do LLC-PK(1) cells. In LLC-PK(1) cells, pretreatment with verapamil (25 ...
This study evaluated the influence of irrigation tip, root canal curvature and final apical diameter on periapical debris and irrigant extrusion during root canal instrumentation. After being classified as mildly or moderately curved, the mesiobuccal root canals of 90 human molars were instrumented. The teeth were allocated into three groups according to the used needle type: a flat open-end ne...
Corresponding author: Vaibhav JainReader , Department of Conservative Dentistry and Endodontics, Chhattisgarh Dental College and Research Institute, Chhattisgarh This article may be cited as:Jain V.Comparative analysis of extrusion of debris and irrigants from the apical foramen using hand and rotary systems.Int J Com Health and Med Res 2017;3(2):66-70 Article Received: 11-05-17 Accepted On: 18...
Although sodium hypochlorite is the most frequently used canal irrigant during endodontic treatment, its complications are not as well recognized as its effectiveness. This report demonstrates that sodium hypochlorite extrusion during endodontic treatment can cause severe complications. A 5-year-old boy experienced immediate pain and swelling, ecchymosis in surrounding tissues, and profuse blee...
This study aimed to analyse and compare apical extrusion of debris in canals instrumented with systems used in reciprocating and continuous motion. Sixty mandibular premolars were randomly divided into 3 groups (n = 20): the Reciproc (REC), WaveOne (WO), and HyFlex CM (HYF) groups. One Eppendorf tube per tooth was weighed in advance on an analytical balance. The root canals were instrumented ac...
Previous studies have shown that gastric glands express at least sodium-hydrogen exchanger (NHE) isoforms 1-4. Our aim was to study NHE-3 localization in rat parietal cells and to investigate the functional activity of an apical membrane NHE-3 isoform in parietal cells of rats. Western blot analysis and immunohistochemistry showed expression of NHE-3 in rat stomach colocalizing the protein in p...
At the initial stage of carcinogenesis, transformation occurs in a single cell within an epithelial sheet. However, it remains unknown what happens at the boundary between normal and transformed cells. Using Madin-Darby canine kidney (MDCK) cells transformed with temperature-sensitive v-Src, we have examined the interface between normal and Src-transformed epithelial cells. We show that Src-tra...
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