Penetration of dentinal tubules by endodontic sealer cements in extracted teeth and in vivo

Aim  To compare the depth and consistency of penetration of three different root canal sealer cements into dentinal tubules in extracted teeth and to measure the penetration of an epoxy resin‐based sealer cement in vivo. Methodology  Root canals of 50 extracted human pre‐molar teeth were prepared an...

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Bibliographic Details
Published in:International endodontic journal 2007-11, Vol.40 (11), p.873-881
Main Authors: Mamootil, K., Messer, H. H.
Format: Article
Language:English
Subjects:
Adult
AH26
Bicuspid
Bismuth
Composite Resins
Dentin - ultrastructure
Dentin Permeability
Dentistry
Drug Combinations
EndoREZ
Epoxy Resins
Humans
Middle Aged
Molar
Pulp canal sealer EWT
Root Canal Filling Materials
sealer cements
Silver
Titanium
tubule penetration
Zinc Oxide-Eugenol Cement
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Summary:Aim  To compare the depth and consistency of penetration of three different root canal sealer cements into dentinal tubules in extracted teeth and to measure the penetration of an epoxy resin‐based sealer cement in vivo. Methodology  Root canals of 50 extracted human pre‐molar teeth were prepared and obturated using three different sealer cements based on epoxy resin (AH26), zinc oxide eugenol (Pulp Canal Sealer EWT) and methacrylate resin (EndoREZ). Five teeth filled without sealer were used as controls. Teeth were sectioned and prepared for observation using scanning electron microscopy. A further 12 teeth with a history of successful root filling and subsequent extraction were collected and sectioned. The depth of sealer penetration into dentinal tubules was measured and the consistency and appearance of the sealer within the tubules observed. Results  AH26 demonstrated the deepest penetration (1337 μm), followed by EndoREZ (863 μm) and Pulp Canal Sealer EWT (71 μm). The difference in penetration between all sealer groups was found to be statistically significant (P 
ISSN:0143-2885
1365-2591
DOI:10.1111/j.1365-2591.2007.01307.x