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| Effect of Mechanical Nickel-titanium Instrument on Stress Reaction and Therapeutic Effect in Children with Deciduous Dental Pulp Disease Treated with Root Canal |
| ZHANG Lei |
| Liaoyang Central Hospital, Liaoning Liaoyang 111000, China |
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Abstract Objective: To analyze the effect of nitinol instrument on endodontic treatment of children with pulpopathy of primary teeth, and summarize the clinical experience. Methods: From May 2017 to May 2019, 100 children with primary dental pulp disease in our hospital were selected for comparative experiment, and randomly divided into control group and test group with 50 cases each by random number method. Children in the control group were prepared with conventional hand nitinol instruments, while children in the test group were prepared with mechanical nitinol instruments. The time of root canal preparation, the rate of good preparation effect and complications were recorded and analyzed. Results: The operation time of root canal preparation (62.1, 6.27, s) in the control group was significantly higher than that of the test group (45.18, 4.29, s), and there was a statistical difference (χ2=10.698,P＜0.001), and the number of children with good preparation effect in the control group (38 cases) was significantly lower than that of the test group (49 cases). In the control group, the good rate (76%) was lower than that of the control group (98%)(χ2=10.698,P＜0.001), and the root canal obstruction (3,6%), lateral shift (1,2%) and the deformation (1,2%) of the children in the control group were all occurred. The overall incidence of complications (10%) was slightly lower Control (2%)(χ2=2.837,P=0.092). Conclusion: In the root canal treatment of children with pulpopathy of deciduous teeth, the use of mechanical nitinol instruments for root canal preparation can greatly reduce the operation time of root canal preparation, improve the preparation effect. For a certain extent, it can improve the postoperative recovery, which is worth promoting in the relevant clinical treatment.
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2020, Vol. 26 
