Indiana University-Purdue University Indianapolis (IUPUI) / This investigation examined the relationships among light
cured glass ionomer liner, light cured glass ionomer base, and
composite resin material in the reattachment of fractured anterior
tooth fragments. Seventy-five bovine incisor teeth were fractured
and luted back together with three different materials (Universal
Bonding Agent/TPH Composite Resin; VariGlass VLC Liner; VariGlass
VLC Base, LD Caulk Div Dentsply Int Inc, Milford, DE) of equal
number. The reattached fragments were subjected to
thermocycling with a 40° C differential and then were loaded until
the force required to detach the fragment was reached. The mean
dislodgment strengths were 36.8 (± 25.6)kg for the composite resin,
36.4 (± 26.7)kg for the glass ionomer base, and 31.4 (± 29.S)kg for
the glass ionomer liner. Analysis of variance demonstrated no
significant difference between the three groups at p≤0.05.
Also examined was the type of fracture after reattachment.
Of the sixty-five teeth that were studied microscopically, 84.6
percent of the fractures were cohesive in nature, thus a breakdown
occurred within the material itself.
| Identifer | oai:union.ndltd.org:IUPUI/oai:scholarworks.iupui.edu:1805/3683 |
| Date | January 1996 |
| Creators | Minutillo, Anthony L., 1965- |
| Contributors | Dean, Jeffrey A., Bowman, Dennis, Moore, B. Keith, Sanders, Brian S., Avery, David R. |
| Source Sets | Indiana University-Purdue University Indianapolis |
| Language | en_US |
| Detected Language | English |
| Type | Thesis |
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