Clinical study of the use of dental operating microscope and ultrasonic instruments in treating the calcified canals in aged people
10.3760/cma.j.issn.1002-0098.2012.s1.011
- VernacularTitle:显微超声处理钙化根管的疗效评价
- Author:
Li-Xia DAI
1
;
Jin-Ling GUO
Author Information
1. 410005,长沙市口腔医院老干科
- Keywords:
Sonication;
Root canal therapy;
Calcified canal;
Dental operating microscop
- From:
Chinese Journal of Stomatology
2012;47(z1):49-51
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the effect of micro-ultrasound technology on dealing with the calcified root canals.Methods One hundred and nineteen calcified root canals were selected from 102 elderly patients with pulpitis or apical periodontitis,and the glide path of which can't be obtained by conventional root canal preparation.Using ultrasonic instruments together with dental operating microscope,the calcified tissue in the coronal,middle and apical third of the canal was removed,thus the canal patency was obtained.Moreover,the patency rate of each segment was compared.Results Ninety-nine blocked calcified canals were managed successfully with a success rate of 83％.And the success rate had no significant difference between the premolars and molars (x2 =1.35,P ＞ 0.05),while there was no significant difference between the upper and lower maxillary and mandibular calcified teeth(x2 =1.21,P ＞ 0.05).The coronal third calcified canal had a patency rate of 93％ (78/84),which had a significant difference between that of middle and apical ones(P ＜0.01).Thus it suggests that the success rate decreased when the calcified spot was near the apical part.Conclusions Using dental operating microscope and ultrasonic instruments can provide an effective method in dealing with calcified root canal,but the outcome of the apical segment was limited.
