Search results for "MICROSCOPIA ELETRÔNICA"

showing 2 items of 2 documents

Analysis of the morphology and composition of tooth apices apicectomized using three different ablation techniques.

2011

Objectives: To investigate apicectomies performed using burs, a CO2 laser or an Er:YAG laser and to evaluate the following aspects: morphology of apicectomized surfaces, presence of failures at the dentin/obturation material interface (marginal fit) of the apical portions of the root canals, and the proportions of chemical elements in the apicectomized surfaces. Study design: Twenty-four teeth were divided into three groups of eight and each group underwent apicectomy by one of three different ablation techniques: bur, CO2 laser or Er:YAG laser. The morphology of the apicectomized surfaces was then analyzed using scanning electron microscopy and their chemical composition was analyzed by en…

Ablation TechniquesAdultMaterials scienceScanning electron microscopeAblation Techniquesmedicine.medical_treatmentEnergy-dispersive X-ray spectroscopyDentistryLasers Solid-StateCiências da Saúde Outras ciências médicasApicectomylaw.inventionTooth ApexlawDentinmedicineHumansHealth sciences Other medical sciencesGeneral Dentistrybusiness.industrymicroanálise por EDS:Other medical sciences [Medical and Health sciences]Tooth ApexMiddle Aged:CIENCIAS MÉDICAS [UNESCO]AblationLasermedicine.anatomical_structureOtorhinolaryngologyUNESCO::CIENCIAS MÉDICASLasers GasSurgeryMEV- Microscopia Eletrônica de Varreduar:Outras ciências médicas [Ciências médicas e da saúde]businessBiomedical engineeringMedicina oral, patologia oral y cirugia bucal
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Efficacy of the NaviTip FX irrigation needle in removing calcium hydroxide from root canal

2012

Objective: To evaluate the effectiveness of the NaviTip FX, brush-covered irrigation needle, in removing calcium hydroxide from the root canal. Study Design: Thirty single-rooted teeth were randomly divided into three groups: A - irrigation with a hypodermic needle inserted as far as possible without binding and activation with #30 K-type file; B - Irrigation with a hypodermic needle without activation; C - irrigation with NaviTip FX needle. Sodium hypoclorite 1% was used in irrigation. The root canals were examined trough scanning electron microscopy. Calcium hydroxide removal was recorded at 1, 5, and 10mm from the working length (WL) and the data were analysed using one-way ANOVA test (p…

IrrigationCalcium hydroxideMICROSCOPIA ELETRÔNICAbusiness.industryResearchRoot canalSignificant differenceAnova testLower scoreSmear layerDentistryOdontología:CIENCIAS MÉDICAS [UNESCO]Ciencias de la saludchemistry.chemical_compoundmedicine.anatomical_structurechemistryClinical and Experimental DentistryUNESCO::CIENCIAS MÉDICASmedicinebusinessGeneral DentistryHypodermic needle
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