Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Objective: The aim of this study was to evaluate the effect of residual calcium hydroxide [Ca(OH)2] on the accuracy of an electronic apex locator (EAL).
Materials And Methods: Working lengths (WLs) of 56 extracted maxillary incisors were determined initially by two different methods. The first method used the 'APEX' reading of the EAL as a reference point, 0.5 mm was subtracted and recorded as WL0. The second method used the '0.5' reading and the score was recorded as WL0.5 without subtraction. The roots were prepared to WL0 and divided randomly into three experimental groups (n = 16) (1 mm in group A, 2 mm in group B and 4 mm in group C) and a control (n = 8). Specimens in all experimental groups were filled with Ca(OH)2 paste. Following its removal, WLs were re-determined with the same methods.
Results: In group C, pre/post WLs were significantly different (p < 0.05). No significant difference was observed between the other experimental groups and the control group.
Conclusion: Accuracy of EAL decreased proportionally with the amount of paste remaining at the ±0.5-mm tolerance level. Ca(OH)2 paste remnants may cause incorrect EAL readings.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3109/00016357.2014.961027 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Transendocardial Injection of Expanded Autologous CD34+ Cells After Myocardial Infarction: Results of the EXCELLENT Trial.
JACC Heart Fail
September 2025
Université de Lorraine, Inserm, Centre d'Investigations Cliniques Plurithématique 1433, Centre Hospitalier Régional Universitaire de Nancy, Nancy, France.
Correction: Factors Affecting the Receptiveness of Chinese Internists and Surgeons Toward Artificial Intelligence-Driven Drug Prescription: Protocol for a Systematic Survey Study.
JMIR Res Protoc
September 2025
State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.
[This corrects the article DOI: .].
View Article and Find Full Text PDFDigital differential diagnostics of thyroid pathology by interference scanning of ellipticity polarization maps of microscopic images of native histological sections.
Pol Merkur Lekarski
September 2025
BUKOVINIAN STATE MEDICAL UNIVERSITY, CHERNIVTSI, UKRAINE.
Objective: Aim: To find out new objective criteria for laser histological differential diagnosis of thyroid pathology based on the use of a digital method of layer-by-layer polarization-interference mapping of polarization ellipticity maps of microscopic images of native histological sections of thyroid biopsy.
Patients And Methods: Materials and Methods: Four groups of patients were studied: control group 1 - healthy donors (51 patients); study group 2 - patients with nodular goiter (51 patients); study group 3 - patients with autoimmune thyroiditis (51 patients); study group 4 - patients with papillary cancer (51 patients). Methods used: polarization-interference, statistical.
EFFECT OF PHYSICAL EXERCISE ON THE HEALTH-RELATED QUALITY OF LIFE ASSESSED BY CLDQ OF LIVER CIRRHOSIS PATIENTS: SYSTEMATIC REVIEW WITH META-ANALYSIS.
Arq Gastroenterol
September 2025
Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
Objective: To verify the effect of physical exercise on the quality of life of patients with liver cirrhosis (LC).
Methods: the sample included controlled and randomized experimental studies of individuals with LC, at any stage of the disease, over 18 years of age, of both sexes, who performed any type of physical exercise compared to any other intervention or no intervention, with quality of life as the outcome assessed by the Chronic Liver Disease Questionnaire (CLDQ). The search for articles was conducted in 11 databases.
Concomitant use of anti-leishmanial therapy and antibacterial prophylaxis reduces plasma LPS levels and improves several aspects of experimental Leishmania infantum infection in golden hamsters.
Mem Inst Oswaldo Cruz
September 2025
Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório Interdisciplinar de Pesquisas Médicas, Rio de Janeiro, RJ, Brasil.
Background: Parasite antigens and plasma lipopolysaccharide (LPS) levels from luminal origin in visceral leishmaniasis (VL) patients are correlated with cellular activation and low CD4+T cell counts.
Objectives: Our aim was to verify whether Leishmania infantum infection damages the intestinal barrier and whether combination antimonial/antibiotic contributes to the reduction of LPS levels and immune activation.
Methods: Golden hamsters were grouped in: G1-uninfected; G2-infected with L.