單根銼WaveOne鎳鈦器械高效治療彎曲根管的實(shí)驗(yàn)研究
[Abstract]:Objective to study the effect of single file Wave One nickel titanium instrument on curved root canal and compare it with stainless steel K file, Pro Taper nickel titanium instrument. Methods A total of 60 single canals premolars with a curvature of 2040 擄were randomly divided into three groups: group A (n = 20) and group C (n = 20). Wave One/Crown-down method was used in each group. K file and Pro Taper/Crown-down method were used to prepare root canal, and lateral scanning of isolated teeth was performed before and after root canal preparation by computer tomography of oral and maxillofacial conical bundle. After preparation, 60 isolated teeth in 3 groups were filled with cold gum side compression. The root canal preparation time and root canal filling time of each isolated tooth in the three groups were measured, and the root canal offset and axial center rate between the root canal and the apical foramen 2 and 6 mm before and after the root canal preparation were analyzed statistically. Results the time of root canal preparation in group A was lower than that in group B, and there was no significant difference between group A and group C in root canal filling time (P0.05), but the time of root canal preparation in group A was shorter than that in group B (P0.05). At 2 and 6 mm from the apical foramen, the root canal deviation and axial center rate between group A and group B were significantly different (P0.05 compared with group C, P0.05). Conclusion compared with stainless steel K file and Pro Taper, Wave One has the advantages of high efficiency and good root canal forming effect, and can be widely used in the treatment of clinical curved root canal.
【作者單位】: 錦州醫(yī)科大學(xué)上海市奉賢區(qū)中心醫(yī)院研究生培養(yǎng)基地;上海交通大學(xué)附屬第六人民醫(yī)院南院口腔科;
【分類號(hào)】:R781.05
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