Contamination of tooth-colored mineral trioxide aggregate used as a root-end filling material: a bacterial leakage study

Journal of Endodontics
Angela M MontellanoThomas J Beeson

Abstract

This experiment investigated the ability of tooth-colored mineral trioxide aggregate (MTA) to maintain an apical seal in the presence of bacteria when contaminated with blood, saline or saliva. Ninety extracted human teeth with single canals were randomly placed into six groups of 15. Canals were prepared to size 50. The apical 3 mm of each root was removed and 3 mm root-end preparations were made with a #329 bur. Root-end preparations in groups 1 through 3 were filled with MTA after contamination with blood, saline, or saliva, respectively. In group 4, uncontaminated root-end preparations were filled with MTA. Groups 5 and 6 served as negative and positive controls. A tube/tooth assembly was utilized to suspend each root end in Trypticase Soy Broth (TSB). The access chambers were filled with Staphylococcus epidermidis. Positive growth over thirty days was demonstrated by turbidity of the TSB. Vitek analysis was used to confirm the presence of S. epidermidis in the positive samples. Data evaluation consisted of a chi(2) analysis (p < 0.05). Although all experimental groups demonstrated leakage, tooth-colored MTA contaminated with saliva (group 3) leaked significantly more than the uncontaminated tooth-colored MTA (group 4) (p =...Continue Reading

References

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Citations

May 14, 2011·Dental Materials : Official Publication of the Academy of Dental Materials·Josette Camilleri
Mar 1, 2011·Dental Materials : Official Publication of the Academy of Dental Materials·B W Darvell, R C T Wu
Feb 4, 2010·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Tahsin YildirimAhmet Serper
Oct 21, 2016·Clinical Oral Investigations·Minju SongEuiseong Kim
Jul 1, 2008·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Kürşat ErSeyda Hergüner Siso
May 22, 2007·International Endodontic Journal·S I Tobón-ArroyaveE C García-Dorado
Dec 8, 2011·Microscopy Research and Technique·Simone Bücker ChittoniMarcus Vinícius Reis Só
Jul 2, 2011·International Endodontic Journal·M H NekoofarP M H Dummer
Oct 13, 2007·Journal of Endodontics·Claudio PoggioRindi Simonetta
Nov 12, 2013·Journal of Applied Oral Science : Revista FOB·Simone Gomes Dias de OliveiraRafael Guerra Lund
Aug 1, 2007·Journal of Applied Oral Science : Revista FOB·Norberti BernardineliRoberto Brandão Garcia
Jun 25, 2008·Expert Review of Medical Devices·Bénédicte EnkelPierre Weiss
Nov 14, 2017·Microscopy Research and Technique·Nidambur Vasudev BallalKishore Ginjupalli
Jun 25, 2009·Journal of Oral Science·Masoud ParirokhMahmoud Torabinejad

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