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editorial
. 2012 Aug 1;7(3):109–114.

Table 2. Systematic reviews by Iranian endodontists.

Author(s) Year Journal [Ref] Topic Results
Shahravan et al. (2007) JOE [9] Smear layer smear layer removal improves the seal
Ahangari et al. (2010) CDSR [10] External root resorption Lack of high level evidence