Hero642 nickel-titanium rotary instrument for single-visit root canal treatment
10.3969/j.issn.2095-4344.2013.42.011
- VernacularTitle:Hero642镍钛机动器械一次性根管治疗
- Author:
Weiwei ZHANG
;
Fang JIN
;
Yi SU
- Publication Type:Journal Article
- Keywords:
biocompatible materials;
root canal therapy;
dental instruments;
pain
- From:
Chinese Journal of Tissue Engineering Research
2013;(42):7408-7413
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND:Several studies have shown that Hero642 is a rotary nickel-titanium file with high safe performance, and its ability of root canal shaping is good.
OBJECTIVE:To observe the clinical effect of single-visit root canal treatment using Hero642 nickel-titanium rotary instrument on teeth with chronic pulpitis and apical periodontitis.
METHODS:Total y 400 teeth with chronic pulpitis and apical periodontitis were operated by Hero642 nickel-titanium rotary instrument and nickel-titanium hand file, respectively. The efficiency of root canal preparation was taken. Pain reactions were recorded 1 week after operation and curative effects were evaluated 2 years after root canal treatment. Rates of pain and success were calculated at 1 week and 2 years after treatment, respectively.
RESULTS AND CONCLUSION:The average time for root canal preparation was (3.57±0.76) minutes in the Hero642 group and (7.62±0.25) minutes in the hand file group, and there was a significant difference between the two groups (P<0.01). After 1 week of treatment, the pain rates were 3.5%and 22.8%in the two groups, respectively, showing a significant difference (P<0.01). Two-year fol ow-up was performed, and ratios of success were 94.4%in the Hero642 group and 92.4%in the hand file group, but there was no difference between the two groups. Hero642 nickel-titanium rotary instrument for single-visit root canal treatment showed excellent efficiency on clinical treatment, reduced treatment period and had less postoperative reactions.
