Document Details
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Document Type |
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Thesis |
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Document Title |
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Microleakage of an ORMOCER-based restorative material in primary teeth , an in vivo study Microleakage of an ORMOCER-based restorative material in primary teeth , an in vivo study |
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Document Language |
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English |
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Abstract |
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Microleakage around restorative materials is an extremely complex phenomenon
and presents a major factor influencing the longevity of composite restorations
especially in primary teeth. However, a new class of esthetic dental filling
material (Admira) has been developed based on ORMOCER technology. Its
manufacturer claims that Admira shows excellent properties than conventional
composite with low polymerization shrinkage and good adhesion of Admira bond
to tooth structure. The success of this new material in controlling microleakage is
still unclear.
The aims of this in vivo study were to compare, by means of dye penetration,
between the microleakage values of an ORMOCER-based material (Admira) and
a commonly-used composite resin (Restorative Z-IOO) and to assess the
differences in the degree of microleakage according to the cavity wall location for
both tested materials.
Twenty cooperative children were selected from patients seeking dental care in
pediatric dental clinic, dental school, King Abdulaziz University.
Each selected child had at least two sound primary canines indicated for
extraction for orthodontic reasons. Forty standardized class V cavities were
prepared. In each child one cavity was randomly selected as control and restored
with Restorative Z-100 composite resin. The other cavity automatically was
considered as a test and restored with an Admira ORMOCER-based resin
material. Both materials were applied according to manufactures instructions and
cured by the same light curing unit. All teeth were extracted 4 weeks after
restoration and immersed in 2% basic fuchsin dye solution for 24 hours at room
temperature. The teeth then were sectioned and observed under stereomicroscope.
The degree of dye penetration was blindly recorded
No statistically significant differences were found in the degree of microleakage
between the two materials or the location of cavity walls. Additional preventive
measures should be considered to minimize leakage since none of the restorative
systems used eliminated microleakage. |
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Supervisor |
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Dr. Najat M. Ali Farsi |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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2006 AH
2006 AD |
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Number Of Pages |
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79 |
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Added Date |
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Sunday, February 14, 2010 |
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Researchers
| ٍعد الحربي | AL-Harbi, Saad | Investigator | Master | |
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