Title: Clinical effects of different therapeutic regimen on chronic periapical periodontitis for C-shaped root canals in mandibular second molars
Abstract: Objective
To investigate clinical effect of file hand stainless steel and nickel-titanium instrument combined with sonic endodontic on chronic periapical periodontitis for C-shaped root canals in mandibular second molars.
Methods
140 patients with chronic periapical periodontitis for C-shaped root canals in mandibular second molar were chosen and randomly divided into two groups, including A group (70 patients) with file hand stainless steel and B group (70patients) with sonic endodontic combined with nickel-titanium instrument.The following-up success rate of root canal therapy, filling quality of root canal, incidence of pain reaction and complication of root canal preparation between the two groups were compared.
Results
The following-up success rate of root canal therapy in 6 months after treatment of A group and B group were 32.86%(23/70), 67.14%(47/70). The following-up success rate of root canal therapy in 12 months after treatment of A group and B group were 64.29%(45/70), 72.86%(51/70). The following-up success rate of root canal therapy in 6 months after treatment of B group was significantly higher than A group(χ2=10.27, P 0.05). The good filling rate of root canal of B group was significantly higher than A group(χ2=9.70, P 0.05).
Conclusion
Nickel-titanium instrument combined with sonic endodontic on chronic periapical periodontitis for C-shaped root canals in mandibular second molars can efficiently improve rational symptoms, enhance filling quality of root canals and reduce pain degree and complication risk, the effect is better than file hand stainless steel for canal preparation.
Key words:
Periapical periodontitis; Root canal therapy; Molar
Publication Year: 2015
Publication Date: 2015-10-15
Language: en
Type: article
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