Hero642 nickel-titanium rotary instrument for single-visit root canal treatment

doi:10.3969/j.issn.2095-4344.2013.42.011

Abstract

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: Totally 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 follow-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.

Key words: biocompatible materials, root canal therapy, dental instruments, pain

CLC Number:

R318

Zhang Wei-wei, Jin Fang, Su Yi . Hero642 nickel-titanium rotary instrument for single-visit root canal treatment[J]. Chinese Journal of Tissue Engineering Research, 2013, 17(42): 7408-7413.

Figures/Tables 5

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