Effect of acid etching on marginal adaptation of mineral trioxide aggregate to apical dentin: microcomputed tomography and scanning electron microscopy analysis

Abstract

Acid etching of tooth root surfaces could improve the adhesion of surgical filling materials, according to research from Saudi Arabia and the United States. Khalid Al-Hezaimi at King Saud University and colleagues studied the adhesion of mineral trioxide aggregate (MTA), which is used to fill the ends of tooth roots after infected tissue has been removed. MTA comes in both white and gray colors. The researchers applied MTA to root cavities in 64 extracted human teeth, half of which had been pre-treated by etching with phosphoric acid. They then used microcomputed tomography and scanning electron microscopy to measure the sizes of gaps between the MTA and the root. This showed that the acid pre-etching helped to improve the adhesion of gray MTA, but not white—a finding the researchers attribute to chemical and structural differences between the two colors.

Keywords

acid etching / biocompatibility / mineral trioxide aggregate / root end filling

References

[1] Chng HK, Islam I, Yap AU. Properties of a new root-end filling material. J Endod, 2005, 31(9): 665-668.

[2] Tobón-Arroyave SI, Restrepo-Pérez MM, Arismendi-Echavarría JA. Ex vivo microscopic assessment of factors affecting the quality of apical seal created by root-end fillings. Int Endod J, 2007, 40(8): 590-602.

[3] Porter ML, Bertó A, Primus CM. Physical and chemical properties of new-generation endodontic materials. J Endod, 2010, 36(3): 524-528.

[4] Yildirim T, Er K, Taşdemir T. Effect of smear layer and root-end cavity thickness on apical sealing ability of MTA as a root-end filling material: a bacterial leakage study. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2010, 109(1): e67-e72.

[5] Stabholz A, Friedman S, Abed J. Marginal adaptation of retrograde fillings and its correlation with sealability. J Endod, 1985, 11(5): 218-223.

[6] Al-Hezaimi K, Naghshbandi J, Oglesby S. Human saliva penetration of root canals obturated with two types of mineral trioxide aggregate cements. J Endod, 2005, 31(6): 453-456.

[7] Al-Hezaimi K, Al-Hamdan K, Naghshbandi J. Effect of white-colored mineral trioxide aggregate in different concentrations on Candida albicans in vitro. . J Endod, 2005, 31(9): 684-686.

[8] Maltezos C, Glickman GN, Ezzo P. Comparison of the sealing of Resilon, Pro Root MTA, and Super-EBA as root-end filling materials: a bacterial leakage study. J Endod, 2006, 32(4): 324-327.

[9] Ribeiro DA, Sugui MM, Matsumoto MA. Genotoxicity and cytotoxicity of mineral trioxide aggregate and regular and white Portland cements on Chinese hamster ovary (CHO) cells in vitro. . Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2006, 101(2): 258-261.

[10] Al-Hezaimi K, Al-Shalan TA, Naghshbandi J. MTA preparations from different origins may vary in their antimicrobial activity. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2009, 107(5): e85-e88.

[11] Reyes-Carmona JF, Felippe MS, Felippe WT. Biomineralization ability and interaction of mineral trioxide aggregate and white portland cement with dentin in a phosphate-containing fluid. J Endod, 2009, 35(5): 731-736.

[12] Tawil PZ, Trope M, Curran AE. Periapical microsurgery: an in vivo evaluation of endodontic root-end filling materials. J Endod, 2009, 35(3): 357-362.

[13] Orosco FA, Bramante CM, Garcia RB. Sealing ability, marginal adaptation and their correlation using three root-end filling materials as apical plugs. J Appl Oral Sci, 2010, 18(2): 127-134.

[14] Parirokh M, Torabinejad M. Mineral trioxide aggregate: a comprehensive literature review—Part III: Clinical applications, drawbacks, and mechanism of action. J Endod, 2010, 36(3): 400-413.

[15] Parirokh M, Torabinejad M. Mineral trioxide aggregate: a comprehensive literature review—Part I: chemical, physical, and antibacterial properties. J Endod, 2010, 36(1): 16-27.

[16] Torabinejad M, Smith PW, Kettering JD. Comparative investigation of marginal adaptation of mineral trioxide aggregate and other commonly used root-end filling materials. J Endod, 1995, 21(6): 295-299.

[17] Shipper G, Grossman ES, Botha AJ. Marginal adaptation of mineral trioxide aggregate (MTA) compared with amalgam as a root-end filling material: a low-vacuum (LV) versus high-vacuum (HV) SEM study. Int Endod J, 2004, 37(5): 325-336.

[18] Bidar M, Moradi S, Jafarzadeh H. Comparative SEM study of the marginal adaptation of white and grey MTA and Portland cement. Aust Endod J, 2007, 33(1): 2-6.

[19] Komabayashi T, Spångberg LS. Comparative analysis of the particle size and shape of commercially available mineral trioxide aggregates and Portland cement: a study with a flow particle image analyzer. J Endod, 2008, 34(1): 94-98.

[20] Al-Hezaimi K, Al-Shalan TA, Naghshbandi J. Antibacterial effect of two mineral trioxide aggregate (MTA) preparations against Enterococcus faecalis and Streptococcus sanguis in vitro. . J Endod, 2006, 32(11): 1053-1056.

[21] Al-Hezaimi K, Naghshbandi J, Oglesby S. Comparison of antifungal activity of white-colored and gray-colored mineral trioxide aggregate (MTA) at similar concentrations against Candida albicans. . J Endod, 2006, 32(4): 365-367.

[22] Torabinejad M, Hong CU, McDonald F. Physical and chemical properties of a new root-end filling material. J Endod, 1995, 21(7): 349-353.

[23] Asgary S, Parirokh M, Eghbal MJ. Chemical differences between white and gray mineral trioxide aggregate. J Endod, 2005, 31(2): 101-103.

[24] Sarkar NK, Caicedo R, Ritwik P. Physicochemical basis of the biologic properties of mineral trioxide aggregate. J Endod, 2005, 31(2): 97-100.

[25] Song JS, Mante FK, Romanow WJ. Chemical analysis of powder and set forms of Portland cement, gray ProRoot MTA, white ProRoot MTA, and gray MTA-Angelus. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2006, 102(6): 809-815.

[26] Asgary S, Parirokh M, Eghbal MJ. A qualitative X-ray analysis of white and grey mineral trioxide aggregate using compositional imaging. J Mater Sci Mater Med, 2006, 17(2): 187-191.

[27] Kiba H, Hayakawa T, Nakanuma K. Pulpal reactions to two experimental bonding systems for pulp capping procedures. J Oral Sci, 2000, 42(2): 69-74.

[28] da Silva LA, de Freitas AC, de Carvalho FK. Direct pulp capping with a self-etching adhesive system: histopathologic evaluation in dogs’ teeth. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2009, 108(1): e34-e40.

[29] Nayyar S, Tewari S, Arora B. Comparison of human pulp response to total-etch and self-etch bonding agents. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2007, 104(2): e45-e52.

[30] Matos AB, Palma RG, Saraceni CH. Effects of acid etching on dentin surface: SEM morphological study. Braz Dent J, 1997, 8(1): 35-41.

[31] Matt GD, Thorpe JR, Strother JM. Comparative study of white and gray mineral trioxide aggregate (MTA) simulating a one- or two-step apical barrier technique. J Endod, 2004, 30(12): 876-879.