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Assessment of leakage in the restored pulp chamber of endodontically treated multirooted teeth
Author(s) -
SAUNDERS W. P.,
SAUNDERS E. M.
Publication year - 1990
Publication title -
international endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.988
H-Index - 119
eISSN - 1365-2591
pISSN - 0143-2885
DOI - 10.1111/j.1365-2591.1990.tb00799.x
Subject(s) - dentistry , pulp (tooth) , molar , materials science , gutta percha , root canal , medicine
Summary. The leakage associated with restorative materials placed within the pulp chamber of maxiliary and mandibular molars was studied in vitro. The root canals and pulp chambers of 69 extracted teeth were prepared chemomechanically and scaled with gutta‐percha and Tubliseal using cold lateral condensation. The teeth were divided into five groups. Gutta‐percha was removed from the pulp chambers of three of the groups of 15 teeth and filled with one of three materials, a glass ionomer cement, a cermet cement or an amalgam. The guttapercha was removed from the pulp chamber in the fourth group of nine teeth, which were left unfilled. The gutta‐percha in the pulp chambers of the fifth group of teeth was left intact. The teeth were suspended in Indian ink, thermocycied for 24 hours and stored for a further 48 hours at 37°C. They were then demineralized and cleared and the degree of coronal leakage was assessed. Those teeth with no filling in the pulp chamber showed extensive leakage. The gutta‐percha‐filled group demonstrated greater leakage than did the groups in which other restorative materials had been employed ( P <0.01). No significant differences in leakage occurred between the other groups ( P >0.05). It is recommended that the pulp chamber of molars should be restored with a filling material following root canal treatment.