Pusinanti , L., R. Rubini, A. Pellati, and N. Zeman. “A Simplified Post Preparation Technique After Thermafil Obturation: Evaluation of Apical Microleakage and Presence of Voids Using Methylene Blue Dye Penetration”. Annali Di Stomatologia, vol. 4, no. 2, Aug. 2022, pp. 184-90, doi:10.59987/ads/2013.2.184-190.