Effects of ultrasonic root-end cavity preparation on the root apex
نویسندگان
چکیده
منابع مشابه
Ultrasonic root-end preparation, Part 2. Microleakage of EBA root-end fillings.
The effect of three methods of root-end preparation, following apical resection, on the apical seal of root-end fillings, was studied in vitro. Root canals of 116 single-rooted teeth with mature apices were prepared chemomechanically and obturated with gutta-percha and sealer. The root ends were resected with a diamond bur under water coolant and were prepared as follows: group I a size 010 rou...
متن کاملTemperature variation on root surface with three root-end cavity preparation techniques.
INTRODUCTION Thermal changes can occur on the external root surface when root-end cavity preparation is performed, which may damage periodontal ligament cells and alveolar bone. OBJECTIVE The purpose of this study was to evaluate the temperature changes during preparation of the root-end cavities at 1 and 3 mm to the sectioned apical root surfaces when either tungsten carbide round bur, diamo...
متن کاملUltrasonic root-end preparation. Part 1. SEM analysis.
Preparations of apical cavities in resected root ends using rotary burs, with and without citric acid rinse, and ultrasonic tips were compared based on the presence or absence of superficial debris and smear layer. Three groups of 20 extracted teeth each were prepared as follows; I, a size 010 round bur was used to prepare an apical cavity 2-3 mm down the long axis of the root; II, treatment as...
متن کاملInfluence of cavity preparation technique (rotary vs. ultrasonic) on microleakage and marginal fit of six end-root filling materials.
OBJECTIVES To evaluate in vitro the effect of cavity preparation with microburs and diamond-coated ultrasonic tips on the microleakage and marginal fit of six end-root filling materials. STUDY DESIGN. The following materials were assessed: amalgam (Amalcap), zinc oxide eugenol (IRM), glass ionomer (Vitrebond), compomer (Cavalite), mineral particle aggregate (MTA) and composite (Clearfil). Cavit...
متن کاملEffects of root morphology on stress distribution at the root apex.
It is thought that the stress concentration at the root apex caused by orthodontic force induces root resorption. The purpose of this study was to investigate stress distribution at the root in cases of deviated root shapes using finite element models (FEMs). To clarify this, five three-dimensional FEMs divided by deviated root shape (normal, short, blunt, bent root apex, pipette shape) were co...
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ژورنال
عنوان ژورنال: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology
سال: 1995
ISSN: 1079-2104
DOI: 10.1016/s1079-2104(05)80204-5