References

Aken, J.V., 1969. Optimum conditions for intraoral roentgenograms. Oral Surg. Oral. Med. Oral. Pathol., 27: 475-491.

Aminzadeh, N., S. Azimi and M.H. Shenas, 2006. Component analysis of four commercial brands of Gutta-Percha. Iranian Endodontic J., 1: 48-52.
Direct Link  |  

Asgary, S. and M. J. Eghbal, 2012. Treatment outcomes of pulpotomy in permanent molars with irreversible pulpitis using biomaterials: A multi-center randomized controlled trial. Acta Odontol. Scand. 10.3109/00016357.2011.654251

Asgary, S. and M. Parirokh, 2004. A comparative study of white mineral trioxide aggregate and white Portland cements using X-ray microanalysis. Aust. Endod. J., 30: 89-92.
CrossRef  |  

Asgary, S. and M. Parirokh, 2005. Chemical differences between white and gray mineral trioxide aggregate. J. Endod., 31: 101-103.
PubMed  |  

Asgary, S., M.J. Eghbal and S. Ehsani, 2010. Periradicular regeneration after endodontic surgery with Calcium-enriched mixture cement in dogs. J. Endod., 36: 837-841.
PubMed  |  

Asgary, S., M.J. Eghbal, J. Ghoddusi and S. Yazdani, 2012. One-year results of vital pulp therapy in permanent molars with irreversible pulpitis: An ongoing multicenter, randomized, non-inferiority clinical trial. Clin. Oral. Investig. 10.1007/s00784-012-0712-6

Asgary, S., M.J. Eghbal, M. Parirokh and J. Ghoddusi, 2009. Effect of two storage solutions on surface topography of two root-end fillings. Aust. Endodon. J., 35: 147-152.
CrossRef  |  

Asgary, S., M.J. Eghbal, M. Parirokh, J. Ghoddusi, S. Kheirieh and F. Brink, 2009. Comparison of mineral trioxide aggregate's composition with Portland cements and a new endodontic cement. J. Endod., 35: 243-250.
PubMed  |  

Asgary, S., S. Shahabi, T. Jafarzadeh, S. Amini and S. Kheirieh, 2008. The properties of a new endodontic material. J. Endod., 34: 990-993.
PubMed  |  

Baksi Akdeniz, B.G. and T.F. Eyuboglu, 2007. The effect of three different sealers on the radiopacity of root fillings in simulated canals. Oral. Surg. Oral. Med. Oral. Pathol. Oral. Radiol. Endod., 103: 138-141.
PubMed  |  

Beyer-Olsen, E.M. and D. Orstavik, 1981. Radiopacity of root canal sealers. Oral. Surg. Oral. Med. Oral. Pathol., 51: 320-328.
CrossRef  |  

Bortoluzzi, E.A. and J.M. Guerreiro-Tanomaru, 2009. Radiographic effect of different radiopacifiers on a potential retrograde filling material. Oral. Surg. Oral. Med. Oral. Pathol. Oral. Radiol. Endod., 108: 628-632.
CrossRef  |  

Curtis, P.M., Jr. and J.A. Von Fraunhofer, 1990. The radiographic density of composite restorative resins. Oral. Surg. Oral. Med. Oral. Pathol., 70: 226-230.
CrossRef  |  

Danesh, G. and T. Dammaschke, 2006. A comparative study of selected properties of ProRoot mineral trioxide aggregate and two Portland cements. Int. Endod. J., 39: 213-219.
CrossRef  |  

Devito, K.L. and A.I. Ortega, 2004. Radiopacity of calcium hydroxide cement compared with human tooth structure. J. Appl. Oral. Sci., 12: 290-293.

Eliasson, S.T. and B. Haasken, 1979. Radiopacity of impression materials. Oral. Surg. Oral. Med. Oral. Pathol., 47: 485-491.
CrossRef  |  

Estrela, C. and L.L. Bammann, 2000. Antimicrobial and chemical study of MTA, Portland cement, calcium hydroxide paste, Sealapex and Dycal. Braz Dent. J., 11: 3-9.
Direct Link  |  

Funteas, U.R. and J.A. Wallace, 2003. A comparative analysis of mineral trioxide aggregate and portland cement. Aust Endod. J., 29: 43-44.
CrossRef  |  

Gambarini, G. and L. Testarelli, 2006. Radiographic and rheological properties of a new endodontic sealer. Aust. Endod. J., 32: 31-34.
CrossRef  |  

Gorduysus, M. and N. Avcu, 2009. Evaluation of the radiopacity of different root canal sealers. Oral. Surg. Oral. Med. Oral. Pathol. Oral. Radiol. Endod., 108: 135-140.
CrossRef  |  

Gu, S. and B.J. Rasimick, 2006. Radiopacity of dental materials using a digital X-ray system. Dent Mater, 22: 765-770.
CrossRef  |  

ISO 4049, 1988. Dentistry-resin-based filling materials. International Organization for Standardization, Geneva, Switzerland.

ISO 6876, 2001. Dentistry-root canal sealing materials. International Organization for Standardization, Geneva, Switzerland.

ISO 6877, 2006. Dentistry-root canal obturating points. International Organization for Standardization, Geneva, Switzerland.

Katz, A. and I. Kaffe, 1990. Densitometric measurement of radiopacity of Gutta-percha cones and root dentin. J. Endod., 16: 211-213.
CrossRef  |  

Malekafzali, B. and F. Shekarchi, 2011. Treatment outcomes of pulpotomy in primary molars using two endodontic biomaterials. A 2-year randomised clinical trial. Eur. J. Paediatr. Dent., 12: 189-193.
PubMed  |  

Markowitz, K., M. Moynihan, M. Liu and S. Kim, 1992. Biologic properties of eugenol and zinc oxide-eugenol: A clinically oriented review. Oral Surg. Oral Med. Oral Pathol., 73: 729-737.
CrossRef  |  

Nosrat, A. and A. Seifi, 2011. Regenerative endodontic treatment (revascularization) for necrotic immature permanent molars: A review and report of two cases with a new biomaterial. J. Endod., 37: 562-567.
CrossRef  |  

Nosrat, A. and A. Seifi, 2012. Pulpotomy in caries-exposed immature permanent molars using calcium-enriched mixture cement or mineral trioxide aggregate: A randomized clinical trial. Int. J. Paediatr. Dent., 10.1111/j.1365-263X.2012.01224.x

Parirokh, M. and M. Torabinejad, 2010. Mineral trioxide aggregate: A comprehensive literature review--Part III: Clinical applications, drawbacks and mechanism of action. J. Endod., 36: 400-413.
PubMed  |  

Parirokh, M. and M. Torabinejad, 2010. Mineral trioxide aggregate: A comprehensive literature review: Part I: Chemical, physical and antibacterial properties. J. Endod., 36: 16-27.
PubMed  |  

Parissis, N. and D. Iakovidis, 1994. Radiopacity of elastomeric impression materials. Aust. Dent. J., 39: 184-187.
CrossRef  |  

Prevost, A.P. and D. Forest, 1990. Radiopacity of glass ionomer dental materials. Oral. Surg. Oral. Med. Oral. Pathol., 70: 231-235.
CrossRef  |  

Samiee, M., M.J. Eghbal, M. Parirokh, F.M. Abbas and S. Asgary, 2010. Repair of furcal perforation using a new endodontic cement. Clin. Oral Investig., 14: 653-658.
CrossRef  |  

Shah, P.M. and B.S. Chong, 1996. Radiopacity of potential root-end filling materials. Oral. Surg. Oral. Med. Oral. Pathol. Oral. Radiol. Endod., 81: 476-479.
CrossRef  |  

Tam, L.E. and E. Pulver, 1989. Physical properties of calcium hydroxide and glass-ionomer base and lining materials. Dent Mater, 5: 145-149.
CrossRef  |  

Tanomaru-Filho, M. and E.G. Jorge, 2007. Radiopacity evaluation of new root canal filling materials by digitalization of images. J. Endod., 33: 249-251.
Direct Link  |  

Torabinejad, M. and M. Parirokh, 2010. Mineral trioxide aggregate: A comprehensive literature review-Part II: Leakage and biocompatibility investigations. J. Endod., 36: 190-202.
PubMed  |  

Torabinejad, M., C.U. Hong, F. McDonald and T.R.P. Ford, 1995. Physical and chemical properties of a new root-end filling material. J. Endodontics, 21: 349-353.
CrossRef  |  

Watts, D.C. and J.F. McCabe, 1999. Aluminium radiopacity standards for dentistry: An international survey. J. Dent., 27: 73-78.
PubMed  |  

White, S.C. and M.J. Pharoah, 2004. Oral Radiology: Principles and Interpretation. 5th Edn., Mosby, USA., ISBN: 9780323020015, pp: 57-59.