No abstract available.
Endodontics*

No abstract available.
Endodontics*

Introduction of 2 new instruments to help improve the quality of endodontics treatment nowadays, it was turning brooch system, especially was protapers and digital tomorgraphy machine. The appearance of Protaper system was a remarkable advantage in endodontics field, having more advantage than older ones such as: more flexible in big brooch, larger tapering helping marrow tube was cleaned and filled in better, the effect of cutting higher, safer in using, completely controlling with touch, decreased ivory crushed in top area, minimum decreased the pressure on brooch and less using brooch, less step, therefore, saving a lots of time. Digital tomorgraphy system was a solution to save tomography time, especially, Visualix USB system was produced by Gendex-Dentsply company. It had more advantage than general tomography system, such as reducing radioactive ray so that it could be put in clinics, no need to darkroom and chemicals, receiving rays by CCD, saving alots of time
Endodontics ; Therapeutics

50 patients with the odontopathy and odontic advantages of technique of the three dimensional obturation/warm vertical condensation of gutta- percha included easy implementation, close obturation of the accessory root canals and high rate of healing the lesion of endodontic origin and limitations included no application for the odontic pedicle that have not been closed.
Endodontics ; methods

OBJECTIVES: The aim of this study was to investigate the effect of glide path preparation with PathFile and ProGlider nickel-titanium (NiTi) files on the cyclic fatigue resistance of WaveOne NiTi files. MATERIALS AND METHODS: Forty-four WaveOne Primary files were used and divided into four groups (n = 11). In the first group (0 WaveOne), the WaveOne Primary files served as a control group and were not used on acrylic blocks. In the 1 WaveOne Group, acrylic blocks were prepared using only WaveOne Primary files, and in the PF+WaveOne group and PG+WaveOne groups, acrylic blocks were first prepared with PathFile or ProGlider NiTi files, respectively, followed by the use of WaveOne Primary files. All the WaveOne Primary files were then subjected to cyclic fatigue testing. The number of cycles to failure was calculated and the data were statistically analyzed using one-way analysis of variance (ANOVA) and the Tukey honest significant difference multiple-comparison test at a 5% significance level. RESULTS: The highest number of cycles to failure was found in the control group, and the lowest numbers were found in the 1 WaveOne group and the PF+WaveOne group. Significant differences were found among the 1 WaveOne, PF+WaveOne, and control groups (p < 0.05). No statistically significant differences were found between the PG+WaveOne group and the other three groups (p > 0.05). CONCLUSION: Glide path preparation with NiTi rotary files did not affect the cyclic fatigue resistance of WaveOne Primary files used on acrylic blocks.
Endodontics ; Fatigue

Endodontics ; Humans ; Licensure, Dental

OBJECTIVES: It was aimed to compare the cyclic fatigue resistances of ProTaper Universal (PTU), ProTaper Next (PTN), and ProTaper Gold (PTG) and the effects of sterilization by autoclave on the cyclic fatigue life of nickel-titanium (NiTi) instruments. MATERIALS AND METHODS: Eighty PTU, 80 PTN, and 80 PTG were included to the present study. Files were tested in a simulated canal. Each brand of the NiTi files were divided into 4 subgroups: group 1, as received condition; group 2, pre-sterilized instruments exposed to 10 times sterilization by autoclave; group 3, instruments tested were sterilized after being exposed to 25%, 50%, and 75% of the mean cycles to failure, then cycled fatigue test was performed; group 4, instruments exposed to the same experiment with group 3 without sterilization. The number of cycles to failure (NCF) was calculated. The data was statistically analyzed by using one-way analysis of variance and post hoc Tukey tests. RESULTS: PTG showed significantly higher NCF than PTU and PTN in group 1 (p < 0.05). Sterilization significantly increased the NCF of PTN and PTG (p < 0.05) in group 2. PTN in group 3 had significantly higher cyclic fatigue resistance than PTN group 4 (p < 0.05). Also, significantly higher NCF was observed for PTG in group 2 than in groups 3 and 4 (p < 0.05). CONCLUSIONS: PTG instrument made of new gold alloy was more resistant to fatigue failure than PTN and PTU. Autoclaving increased the cyclic fatigue resistances of PTN and PTG.
Alloys ; Endodontics ; Fatigue* ; Sterilization*

Endodontic treatment with calcium oxide has been proposed for a long time. It proved to be easily applied and needs be polulazied throughout the country, down to rural areas where people are actually short age of endodontic instrument.
Lime ; Endodontics ; therapeutics

No abstract available.
Dentistry ; Endodontics ; Korea

Dental Implants ; Endodontics ; Humans