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Clinic evaluation of nickel-titanium rotary instruments Hero 642 in management of curved root canals in posterior teeth
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- Author:
- No author available
- Journal Title:
- CHINA CLINICAL PRACTICAL MEDICINE
- Issue:
- 5
- DOI:
- No doi available
- Key Word:
- 根管预备;镍钛器械Hero 642;弯曲根管
Abstract： 目的 评价机动镍钛器械Hero 642预备后牙弯曲根管的临床疗效.方法 将64颗具有中、重度弯曲根管的患牙随机分为两组,试验组使用机动镍钛器械Hero 642以冠向下技术预备根管,对照组使用手动K锉以逐步后退法预备根管,两组均以侧向加压方法完成充填.根据治疗前、中、后的数字牙片评价根管预备和充填效果.结果 试验组无根尖阻塞,根管预备后的锥度和流畅度好,操作时间短,术后疼痛发生率低(P＜0.01).有2例器械折断;对照组有1例器械折断.结论 机动镍钛器械Hero 642预备后牙弯曲根管成形效果好、快速、使用方便,术后疼痛发生率少.可视为临床上预备弯曲根管的有效方法.
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