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https://ptsldigital.ukm.my/jspui/handle/123456789/457419Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | Norziha Yahaya, Dr. | - |
| dc.contributor.author | Norazia Majid (P66133) | - |
| dc.date.accessioned | 2023-09-12T04:06:42Z | - |
| dc.date.available | 2023-09-12T04:06:42Z | - |
| dc.date.issued | 2016-03-22 | - |
| dc.identifier.other | ukmvital:86093 | - |
| dc.identifier.uri | https://ptsldigital.ukm.my/jspui/handle/123456789/457419 | - |
| dc.description | Marginal adaptation is the approximation of dental prosthesis margin’s to the tooth surface. Poor marginal adaptation could compromise the longevity of a full crown restoration. Currently, indirect composite restorations are extensively used in dentistry as an alternative to ceramic crown. However, the drawback with composite is polymerization shrinkage which could affect crown’s marginal adaptation. Two commercially available brands of indirect composite materials, “Ceramage® and SR Nexco Paste” were tested in this study. This study was aimed to assess the marginal adaptation of Indirect Composite Crowns in comparison to Full Metal Crowns and to determine whether the three types of luting cements could influence the fit of crowns. A standard all ceramic crown design was prepared on one frasaco™ maxillary first premolar tooth, from which 90 identical metal dies were produced with the conventional lost-wax technique. Ninety individual crowns were then fabricated. The crowns were divided into three groups (Ceramage®, SR Nexco and Full Metal Crowns), and further subdivided into three subgroups, each consisting of ten crowns. Each subgroup was assigned to a different luting cement (Hy-Bond, Poly-F® and RelyX™ U200). The mounted specimens were sectioned mesiodistally with an ISOMET® 5000 diamond saw. Marginal gaps were measured using a stereomicroscope and the openings were recorded in microns. The results showed significant differences in the marginal gaps between Full Metal Crowns and the two brands of Indirect Composite Crowns (p<0.05). No significant differences was noted between Ceramage® and SR Nexco Crowns (p>0.05). Crowns cemented with Poly- F® had significantly larger (p<0.05) marginal gaps than crowns cemented with RelyX™ U200 and Hy-Bond. There was no difference between the marginal gaps of crowns cemented with Hy-Bond and RelyX™ cement (p>0.05). In conclusion, marginal gap values of all the tested crowns were clinically acceptable regardless the type of materials and luting cements being used.,Ijazah Doktor Pergigian | - |
| dc.language.iso | eng | - |
| dc.publisher | UKM, Kuala Lumpur | - |
| dc.relation | Faculty of Dentistry / Fakulti Pergigian | - |
| dc.rights | UKM | - |
| dc.subject | Tooth | - |
| dc.subject | Crown | - |
| dc.subject | Composite | - |
| dc.subject | Dissertations, Academic -- Malaysia | - |
| dc.title | Marginal adaptation of indirect composite crowns | - |
| dc.type | theses | - |
| dc.format.pages | 69 | - |
| dc.identifier.callno | WU20.5.N822m 2016 9 | - |
| Appears in Collections: | Faculty of Dentistry / Fakulti Pergigian | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ukmvital_86093+Source01+Source010.PDF Restricted Access | 104.47 kB | Adobe PDF |  View/Open |
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