The effect of tapered master gutta‑percha cone on apical seal of straight and curved root canals prepared with nickel–titanium rotary files
Message:
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
Background

Gutta‑percha has been the predominant root canal filling material which is developed with different taper. Canal obturation fixed with nickel–titanium (NiTi) instruments and tapered gutta‑percha master cone and lateral condensation is advantageous because it is clinically effectual and appears to result in a radiographically acceptable outcome. The aim of this in vitro study was to determine the effect of tapered master gutta‑percha cone on apical seal of straight and curved root canals using NiTi rotary files.

Materials and Methods

In this in vitro study total of 130 mandibular molars were selected and divided into six experimental groups (n = 20) based on the degree of root canal curvatures (0°–20°and 20°–40°) and the taper of master cones (0.02, 0.04, and 0.06). The roots were immersed in the bacterial leakage model and monitored daily for a period of 70 days. Data were analyzed using Kaplan–Meier approach, log‑rank test, and Chi‑square tests. P < 0.05 was considered statistically significant.

Results

The microleakage in the 0°–20° canal curvature using 0.02‑ and 0.04‑tapered master cones was similar and considerably <0.06‑tapered master cone (P < 0.05). However, the microleakage in the 20°–40° canal curvature using 0.02‑ and 0.04‑tapered master cones was more than 0°–20° and for 0.06‑tapered master cone was <0°–20°, but there was no statistical difference between the use of 0.02‑, 0.04‑, and 0.06‑tapered master cones (P > 0.05).

Conclusion

The lateral condensation filling technique using 0.02‑ and 0.04‑tapered master cones is more effective in minimizing microbial leakage in straight canals than 0.06‑tapered master cone.

Language:
English
Published:
Dental Research Journal, Volume:17 Issue: 4, Jul-Aug 2020
Pages:
287 to 292
magiran.com/p2169329  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 990,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required

Personal subscription
Subscribe magiran.com for 50 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!