Abstract
Background: Cold lateral condensation due to its simplicity
and the high control it offers over the apical gutta-percha placement is
among
the most popular and widely used methods of #rootcanal filling. One of
the main limitations of this technique is that it allows gaps to form,
often
resulting in a high percentage of sealer along and between the #cones,
especially in the apical area.
Objective: To evaluate gutta-percha obturations density produced by cold, warm and vibrating-warm lateral compaction techniques in
artificial and natural root canals
Methods: Forty acrylic blocks and 40 single-rooted extracted
teeth were instrumented using ProTaper® rotary files up to F3. The
canals
were laterally compacted with #gutta-percha, weighed and subjected to
warm lateral compaction followed by vibrating-warm lateral compaction.
The teeth and blocks were re-weighed following each phase. The added
gutta-percha in each phase was compared with the control (cold lateral
compaction). The Wilcoxon Signed Ranks test and the Mann-Whitney test
were used for #statisticalanalysis.
Results: Warm lateral compaction increased the density of
gutta-percha compared to with cold lateral compaction in blocks and root
canals by 23.5% and 25%, respectively (p < 0.001). Warm and vibrating
compaction further increased the gutta-percha’s density by 33% and
53%, respectively (p< 0.001).
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