CC BY-NC-ND 4.0 · Journal of Health and Allied Sciences NU 2012; 02(04): 44-49
DOI: 10.1055/s-0040-1703611
Original Article

ROOT CEMENTUM INVASION AND ADHESION BY ENTEROCOCCUS FAECALIS CONFOCAL ANALYSIS.

Rahul Halkai
1   Ph.D. Student, Department of Conservative and Endodontics, A.B. Shetty Memorial Institute of Dental Science, Deralakatte, Mangalore - 575018, Karnataka, India
,
Mithra N. Hegde
2   Senior Professor & Head of the Department, Department of Conservative and Endodontics, A. B. Shetty Memorial Institute of Dental Science, Deralakatte, Mangalore - 575018, Karnataka, India
,
Kiran Halkai
3   Sr. Lecture, Department of Conservative and Endodontics, Sn Hke'S Dental college, GULBARGA
› Author Affiliations

Abstract

Aims to know ability of Enterococcus faecalis invasion and adhesion into root cementum.

Methodology Forty single rooted human intact teeth were selected, group I with 20 teeth as control group with no access opening and apical seal with varnish. Group II with 20 teeth, after access opening and canal debridement, all the samples were subjected for gamma sterilization to ensure complete absence of microorganisms, and then exposed to Enterococcus faecalis broth, in group II broth is placed with the help of micro pipette into root canal and at the same time apical 1/3 of tooth were immersed into broth with both groups for 8 weeks. Biomechanical preparation, obturation and coronal sealing done using GIC with group II, followed by apical 1/3 immersed in the enterococcus broth for 8 weeks, examination under confocal laser scanning microscope after splitting the teeth samples into two halfs buccolingually.

Results: This study shows only adhesion of Enterococcus faecalis to root cementum. Conclusion Adhesion of Enterococcus faecalis to root cementum may be the possible reason for persisting infection after root canal treatment.



Publication History

Article published online:
29 April 2020

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Thieme Medical and Scientific Publishers Private Ltd.
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  • References

  • 1 Haapasalo M, Ørstavik D. In vitro infection and disinfection of dentinal tubules. J Dent Res 1987;66:1375-1379.
  • 2 Hubble TS, Hatton JF, Nallapareddy SR, Murray BE, Gillespie MJ. Influence of Enterococcus faecalis proteases and the collagen-binding protein, Ace, on adhesion to dentin. Oral Microbio Immun 2003;18:121-126.
  • 3 Nallapareddy SR, Singh KV, Duh R-W, Weinstock GM, Murray BE. Diversity of ace, a gene encoding a microbial surface component recognizing adhesive matrix molecules, from different strains of Enterococcus faecalis and evidence for production of Ace during human infections. Infect Immun 2000a;68:5210-5217.
  • 4 Nallapareddy SR, Qin X, Weinstock GM, Höök M, Murray BE. Enterococcus faecalis adhesin, Ace, mediates attachment to extracellular matrix proteins collagen type IV and laminin as well as collagen type I. Infect Immun 2000b;68:5218–5224.
  • 5 Nallapareddy SR, Murray. BELigand-signaled upregulation of Enterococcus faecalis ace transcription, a mechanism for modulating host- E Faecalis interaction. Infect Immun 2006;74(9):4982-9.
  • 6 Tandjung L, Waltimo T, Heide P, Decker EM, Weiger R. Octenidine in root canal and dentine disinfection EX vivo. Int Endod J 2007;40:845-51.
  • 7 Love RM. Enterococcus Faecalis- a mechanism for its role in endodontic failure. Int Endod J 2001;34:399-405.
  • 8 Bergmans L, Moisiadis P, Huybrechts B, Van Meerbeek B, Quirynen M, Lambrechts P. Effect of photo-activated disinfection on endodontic pathogens ex vivo. Int Endod J 2008;41:227-39.
  • 9 Ronald OZ, Ivaldo G de M, Thais HG, Roberto BG. Confocal laser scanning microscopy is appropriate to detect viability of enterococcus faecalis in dentin. Int Endod J 2008;34:1198-1201.
  • 10 Zaura-Arite E, van Marie J, ten Cate JM. Confocal microscopy study of undisturbed and chlorhexidine-treated dental biofilm. J Dent Res 2001;80:1436-40.
  • 11 Mason DJ, Lloyd D. Acridine orange as an indicator of bacterial susceptibility to gentamicin. FEMS Microbiol Lett 1997;153:199-204.
  • 12 Vitkov L, Hannig M, Krautgartner WD, et al. Ex vivo gingival biofilm consortia. Lett. Appl Microbiol 2005;41:404-11.
  • 13 Haapasalo M, Ørstavik D. In vitro infection and disinfection of dentinal tubules. J Dent Res 1987;66:1375-1379.
  • 14 Molander A, Reit C, Dahlén G, Kvist T. Microbiological status of rootfilled teeth with apical periodontitis. Int Endod J 1998;31:1–7.
  • 15 Rich RL, Kreikemeyer B, Owens RT, LaBrenz S, Narayana SV, Weinstock GM. Ace is a collagen-binding MSCRAMM from Enterococcus faecalis. J micro Chemis 1999; 274:26939–45.
  • 16 Evans M, Davies JK, Sundqvist G, Figdor D. Mechanisms involved in the resistance of Enterococcus faecalis to calcium hydroxide. Int Endod J 2002;35:221-228.
  • 17 Figdor D, Davies JK, Sundqvist G. Starvation survival, growth and recovery of Enterococcus faecalis in human serum. Oral Microbiol Immun 2003;18:234–9.
  • 18 Tronstad L, Andreasen JO, Hasselgren G, Kristerson L, Riis I. pH changes in dental tissues after root canal filling with calcium hydroxide. J Endod 1981;7:17–21.
  • 19 Shungu DL, Cornett JB, Shockman GD. Morphological and physiological study of autolytic-defective Streptococcus faecium strains. J Bacteriol 1979;138:598–608.
  • 20 Basinger SF, Jackson RW. Bacteriocin (hemolysin) of Streptococcus zymogenes. J Bacteriol 1968;96:1895–1902.
  • 21 Jackson RW. Bacteriolysis and inhibition of Gram-positive bacteria by components of Streptococcus zymogenes lysine. J Bacteriol 1971;105:156–159.
  • 22 Jett BD, Gilmore MS. The growth-inhibitory effect of the Enterococcus faecalis bacteriocin encoded by pAD1 extends to the oral streptococci. J Dent Res 1990;69:1640–1645.
  • 23 Tandjung I, Waltimo T, Hauser I, Heide P, Decker EM, Weiger R. Octenidine in root canal and dentine disinfection EX VIVO. Int Endod J 2007;40:845-51.