Research on root fracture resistance after root canal filling / 华西口腔医学杂志
West China Journal of Stomatology
;
(6): 232-234, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-336350
ABSTRACT
<p><b>OBJECTIVE</b>To compare the fracture resistance of roots filled with three different root canal filling techniques.</p><p><b>METHODS</b>Forty extracted single-rooted permanent teeth were instrumented and randomly divided into four groups. Three experimental groups were filled with lateral compaction technique, vertical compaction technique and single-cone technique, respectively. No filling was performed in control group. All specimens were subjected to a vertical load to cause vertical root fracture. The force required to fracture was measured and the fracture lines was classified.</p><p><b>RESULTS</b>Three experimental groups exhibited higher mean fracture load values than that of control group (179.93 N+/-34.03 N). There was no significant difference among the three experimental groups, and the mean fracture load values were (210.041+/-64.57), (232.55+/-50.74), (216.80+/-78.03) N, respectively. Eighty-five percent of root fracture lines were found in the bucco-lingual direction.</p><p><b>CONCLUSION</b>Root canal filling alone can't influence the root strength significantly. There is no difference in root strength after three canal filling techniques.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Root Canal Filling Materials
/
Root Canal Obturation
/
Tooth Fractures
/
Tooth Root
/
Dental Pulp Cavity
/
Dental Stress Analysis
/
Gutta-Percha
Limits:
Humans
Language:
Chinese
Journal:
West China Journal of Stomatology
Year:
2013
Type:
Article
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