AN EVALUATION OF THE MARGINAL INTEGRITY OF PORCELAIN FUSED TO BASE METAL CROWNS AFTER EXTENSION OF PORCELAIN TO THE BORDER OF THE MARGIN

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

ROKNI SH.; SEYFI M.; IZADI A.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: JOURNAL OF ISLAMIC DENTAL ASSOCIATION OF IRAN (MAJALLAH-I-DANDANPIZISHKI) Year:2007 | Volume:18 | Issue:4 (61) Page(s): 14-19

Download Full-Text

Persian Verion

View:

1,004

Download:

Cites:

Information Journal Paper

Title

AN EVALUATION OF THE MARGINAL INTEGRITY OF PORCELAIN FUSED TO BASE METAL CROWNS AFTER EXTENSION OF PORCELAIN TO THE BORDER OF THE MARGIN

Author(s)

ROKNI SH. | SEYFI M. | IZADI A. | Issue Writer Certificate

Keywords

METALQ3

CERAMICQ2

MARGINAL GAPQ3

FINISHING LINEQ4

Abstract

Background and Aim: In PFM restorations, marginal coverage of the METAL framework with porcelain, without producing an over contoured margin is necessary to enhance esthetics. The aim of this study was to evaluate the marginal integrity of porcelain fused to base METAL crown after extension of porcelain to the border of the margin.Materials and Methods: Thirty brass standard dies were prepared and divided into 3 groups of 10, based on different FINISHING LINEs: 90° shoulder, 1.2-mm-wide; 135° slopping shoulder, 1.2-mm-wide; and shoulder, 0.7-mm-wide with a 45° bevel, 0.5 mm-long. For each die a brass cap was fabricated according to the specific FINISHING LINE to accommodate a 0.5 mm thickness. Two METAL copings were made on each die which were used as test and control samples. The MARGINAL GAP of each coping was measured at 4 points under a reflective microscope after casting and oxidation. Porcelain was applied and extended to the border of the margins in the test group and 0.5 mm short of the borders in the control group. MARGINAL GAPs were measured once more at the same points after porcelain firing. Statistical analysis was performed using t-test.Results: The MARGINAL GAPs of all copings increased after porcelain firing. Extension of porcelain to the border of the margins did not significantly increase the MARGINAL GAPs.Conclusion: These results indicated that porcelain can be extended to the border of the crown's margin without producing a significant increase in the MARGINAL GAP.

Cites

No record.

References

No record.

Cite

APA: Copy

ROKNI, SH., SEYFI, M., & IZADI, A.. (2007). AN EVALUATION OF THE MARGINAL INTEGRITY OF PORCELAIN FUSED TO BASE METAL CROWNS AFTER EXTENSION OF PORCELAIN TO THE BORDER OF THE MARGIN. JOURNAL OF IRANIAN DENTAL ASSOCIATION (JIDA) (MAJALLAH-I-DANDANPIZISHKI), 18(4 (61)), 14-19. SID. https://sid.ir/paper/54974/en

Vancouver: Copy

ROKNI SH., SEYFI M., IZADI A.. AN EVALUATION OF THE MARGINAL INTEGRITY OF PORCELAIN FUSED TO BASE METAL CROWNS AFTER EXTENSION OF PORCELAIN TO THE BORDER OF THE MARGIN. JOURNAL OF IRANIAN DENTAL ASSOCIATION (JIDA) (MAJALLAH-I-DANDANPIZISHKI)[Internet]. 2007;18(4 (61)):14-19. Available from: https://sid.ir/paper/54974/en

IEEE: Copy

SH. ROKNI, M. SEYFI, and A. IZADI, “AN EVALUATION OF THE MARGINAL INTEGRITY OF PORCELAIN FUSED TO BASE METAL CROWNS AFTER EXTENSION OF PORCELAIN TO THE BORDER OF THE MARGIN,” JOURNAL OF IRANIAN DENTAL ASSOCIATION (JIDA) (MAJALLAH-I-DANDANPIZISHKI), vol. 18, no. 4 (61), pp. 14–19, 2007, [Online]. Available: https://sid.ir/paper/54974/en

Related Journal Papers