Filling of simulated lateral canals using different obturation techniques: analysis through IDA digital radiograph system

Resumo

Lateral canals are part of the root canal system
and may be related to periodontal-endodontic diseases. The
filling techniques that employ thermoplasticized gutta-percha have
demonstrated better results in filling lateral canals. Objective: The
aim of this study was to evaluate, through digital radiographs, three
techniques of root canal obturation (Lateral Condensation, Obtura II
System, Tagger’s Hybrid) regarding to the ability of filling artificial
lateral canals. Material and methods: 30 extracted human lower
premolars were used in this study. The crowns were removed and
artificial laterals canals were prepared on the coronal, medium and
apical thirds of the roots by using a reamer made of a K 10 file.
The root canals were instrumented and obturated by the following
techniques: Lateral Condensation, Obtura II System, and Tagger’s
Hybrid. The teeth were radiographed with IDA digital radiograph
system and the filling of the lateral canals was evaluated by scores
for further statistical analysis. Results: No significant difference was
found in the filling of lateral canals between Lateral Condensation
and Obtura II, but a significant difference was found among these
two and Tagger’s Hybrid technique. Conclusion: Tagger’s Hybrid technique promoted the highest numbers of obturated lateral canals.
In the three groups, the root thirds presenting greater number of
filled lateral canals were coronal and middle, regardless of the
obturation technique employed.