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Clinical and tomographic comparison of dental implants placed by guided virtual surgery versus conventional technique: A split-mouth randomized clinical trial.

引导虚拟手术与传统技术放置牙种植体的临床和断层扫描比较: 口裂随机临床试验。

  • 影响因子:4.73
  • DOI:10.1111/jcpe.13211
  • 作者列表:"Magrin GL","Rafael SNF","Passoni BB","Magini RS","Benfatti CAM","Gruber R","Peruzzo DC
  • 发表时间:2020-01-01
Abstract

AIM:Our objective was to compare guided virtual surgery to conventional surgery in terms of angular deviation of single dental implants placed in the posterior mandible. MATERIALS AND METHODS:Patients with bilateral homologous single teeth missing in the posterior mandible were eligible for this split-mouth randomized clinical trial. Cone beam computed tomography (CBCT) was performed for virtual planning of implant position and manufacturing of the stereolithographic guides. One week after the surgery, a second CBCT scan was superimposed to the initial planning. Primary endpoint was the angular deviation between virtual and clinical implant position. Secondary endpoints were linear deviations and patient-reported outcomes collected with a questionnaire. RESULTS:Data from 12 patients were available for analysis. Angular deviation was significantly lower using stereolithographic guides as compared to conventional guides (2.2 ± 1.1° vs. 3.5 ± 1.6°, p = .042). Linear deviations were similar for both techniques in the coronal (2.34 ± 1.01 vs. 1.93 ± 0.95 mm) and apical (2.53 ± 1.11 vs. 2.19 ± 1.00 mm) dimensions (p ˃ .05). The selection of the surgical technique had no significant impact on the patient-reported outcomes. CONCLUSION:Our data suggest that the angular discrepancy between the virtual and the clinical implant position is slightly lower when using stereolithographic guides as compared to conventional guides.

摘要

目的: 我们的目的是比较引导虚拟手术与传统手术在单个牙种植体置于后下颌骨的角度偏差。 材料和方法: 下颌后牙双侧同源单颗牙缺失的患者符合本口裂随机临床试验的条件。进行锥形束计算机断层扫描 (CBCT) 以进行植入物位置的虚拟规划和立体光刻导向器的制造。手术后一周,将第二次CBCT扫描叠加到初始计划中。主要终点是虚拟和临床植入位置之间的角度偏差。次要终点是通过问卷收集的线性偏差和患者报告的结局。 结果: 来自12名患者的数据可用于分析。与常规导向器相比,使用立体光刻导向器的角度偏差显著较低 (2.2 ± 1.1 ° 对3.5 ± 1.6 °,p = .042)。冠状 (2.34 ± 1.01 vs. 1.93 ± 0.95毫米) 和心尖 (2.53 ± 1.11 vs. 2.19 ± 1.00毫米) 两种技术的线性偏差相似 (p ˃ .05)。手术技术的选择对患者报告的结局没有显著影响。 结论: 我们的数据表明,与传统导向器相比,当使用立体光刻导向器时,虚拟植入物位置和临床植入物位置之间的角度差异略低。

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影响因子:2.98
发表时间:2020-01-01
DOI:10.1136/neurintsurg-2019-014962
作者列表:["Guo W","Liu H","Tan Z","Zhang X","Gao J","Zhang L","Guo H","Bai H","Cui W","Liu X","Wu X","Luo J","Qu Y"]

METHODS:BACKGROUND:The main surgical techniques for spontaneous basal ganglia hemorrhage include stereotactic aspiration, endoscopic aspiration, and craniotomy. However, credible evidence is still needed to validate the effect of these techniques. OBJECTIVE:To explore the long-term outcomes of the three surgical techniques in the treatment of spontaneous basal ganglia hemorrhage. METHODS:Five hundred and sixteen patients with spontaneous basal ganglia hemorrhage who received stereotactic aspiration, endoscopic aspiration, or craniotomy were reviewed retrospectively. Six-month mortality and the modified Rankin Scale score were the primary and secondary outcomes, respectively. A multivariate logistic regression model was used to assess the effects of different surgical techniques on patient outcomes. RESULTS:For the entire cohort, the 6-month mortality in the endoscopic aspiration group was significantly lower than that in the stereotactic aspiration group (odds ratio (OR) 4.280, 95% CI 2.186 to 8.380); the 6-month mortality in the endoscopic aspiration group was lower than that in the craniotomy group, but the difference was not significant (OR=1.930, 95% CI 0.835 to 4.465). A further subgroup analysis was stratified by hematoma volume. The mortality in the endoscopic aspiration group was significantly lower than in the stereotactic aspiration group in the medium (≥40-<80 mL) (OR=2.438, 95% CI 1.101 to 5.402) and large hematoma subgroup (≥80 mL) (OR=66.532, 95% CI 6.345 to 697.675). Compared with the endoscopic aspiration group, a trend towards increased mortality was observed in the large hematoma subgroup of the craniotomy group (OR=8.721, 95% CI 0.933 to 81.551). CONCLUSION:Endoscopic aspiration can decrease the 6-month mortality of spontaneous basal ganglia hemorrhage, especially in patients with a hematoma volume ≥40 mL.

影响因子:0.96
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