Συγκριτική αξιολόγηση της εμφρακτικής ικανότητας τριών τεχνικών έμφραξης (πλάγια συμπύκνωση, thermafil, system B) σε κεκαμμένους ριζικούς σωλήνες

Postgraduate Thesis uoadl:1315355 428 Read counter

Unit:
Κατεύθυνση Ενδοδοντία (Κλινικές Ειδικεύσεις)
Βιβλιοθήκη Οδοντιατρικής
Deposit date:
2014-12-02
Year:
2014
Author:
Ζερβάκη Αγάπη
Supervisors info:
Π. Πανόπουλος, Αναπληρωτής Καθηγητής, Γ. Σίσκος, Αναπλ. Καθηγητής, Μ. Χαμπάζ,Αναπλ. Καθηγητής
Original Title:
Συγκριτική αξιολόγηση της εμφρακτικής ικανότητας τριών τεχνικών έμφραξης (πλάγια συμπύκνωση, thermafil, system B) σε κεκαμμένους ριζικούς σωλήνες
Languages:
Greek
Summary:
The aim of this study was the ex vivo evaluation of obturation quality in
curved canlals.Thirty mesial roots of mandibular molars (angle of curvature >
35o) and thirty six independent root canals were used. All canals were
manipulated with BioRaCe instruments, to BR4 (35/.04). Samples were randomly
divided in 3 groups. Group A: Lateral compaction, Group B: System B/ Obtura,
Group C: Thermafil.Roots were embedded in acrylic resin and were sectioned with
microtome at 0mm, 3mm and 5 mm from working length. Sections were observed at
stereomicroscope and analyzed with Image J.Group A demonstrated the greatest
heterogeneity. In group B the formation of mixture of sealer and gutta-percha
was noticed. In group C total or partial denudation of the carrier was
noticed.No statistical significant differences were found among the groups,
when the total area of voids and the percentage of voids in the root canal were
taken into conideration. Cross-section at 0mm produced statistical
significantly higher total area of voids than cross-section at 5mm. Penetration
of filling materials was higher in group B at the 5mm cross-section level.
Penetration depth was higher at the 5mm crosssection level.
Keywords:
Obturation, curved root canals, isthmus, observational study, voids
Index:
No
Number of index pages:
0
Contains images:
Yes
Number of references:
26
Number of pages:
127
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