Effect of eugenol-based endodontic sealer on the adhesion of intraradicular posts cemented after different periods
J. appl. oral sci
; 17(6): 579-583, Nov.-Dec. 2009. ilus, tab
Article
in English
| LILACS
| ID: lil-534423
Responsible library:
BR1.1
ABSTRACT
OBJECTIVE:
This study evaluated in vitro the influence of an eugenol-based sealer (EndoFill) on the retention of stainless steel prefabricated posts cemented with zinc phosphate and resin-based (Panavia F) cements after different periods of root canal obturation, using the pull-out test. MATERIAL ANDMETHODS:
Sixty upper canines were decoronated and the roots were embedded in resin blocks. The specimens were distributed into 3 groups, according to the period elapsed between canal obturation and post cementation Group I - immediately; Group II - 72 h and Group III - 4 months. The groups were subdivided according to the type of cement used for post cementation A - zinc phosphate and B - Panavia F. Following the experimental periods, specimens were subjected to pullout test in an Instron machine with application of tensile force at a crosshead speed of 0.5 mm/min until post dislodgement. The maximum forces required for post removal were recorded (kN) and means were subjected to statistical analysis by 2-way ANOVA and Tukey-Kramer test (á=0.001)RESULTS:
There were statistically significant differences (p<0.01) between the posts cemented with zinc phosphate cement (0.2112 kN) and Panavia F (0.0501 kN). However, no statistically significant differences (p>0.05) were found between the three post cementation periods, regardless of the cement.CONCLUSIONS:
It was concluded that the eugenol-based sealer influenced the tensile strength of the posts cemented with the resin cement, but had no influence on the time waited between root canal obturation and post space preparation/post cementation.
Full text:
Available
Collection:
International databases
Database:
LILACS
Main subject:
Root Canal Filling Materials
/
Zinc Oxide-Eugenol Cement
/
Post and Core Technique
/
Dental Bonding
/
Cementation
Type of study:
Controlled clinical trial
Limits:
Humans
Language:
English
Journal:
J. appl. oral sci
Journal subject:
Dentistry
Year:
2009
Document type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
University of Ribeirão Preto/BR
/
University of São Paulo/BR