Title: The Comparison of Effect on Ordinary Root Canal K-file and H-file in the Root Canal Preparation of Back Teeth
Abstract: Objective To study the root canal preparation of back teeth with ordinary stainless steel K-file and H-file and observe obstruction of root canal in root canal therapy.Methods 208 clinical cases with the root canal therapy,68 Premolars and 140 Molars were randomly and equally divided into two groups as experimental group and control group in this study,the experimental group with stainless steel K-file,the control group with stainless steel K-file and H-file.There are104 teeth in each group.Results In root canal therapy,the obstruction rate of experimental group and control group was 16.35% and 35.58% respectively.There was a significant difference in experimental group(P0.05).Conclusion Compared with H-file,K-file is much safer and it has lower obstruction rate and better effect.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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