Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Nov 27:20:117.
eCollection 2023.

Comparison of marginal leakage and retentive strength of implant-supported milled zirconia and cobalt-chromium copings cemented with different temporary cements

Amirreza Hendi  1 , Mehran Falahchai  1 , Saeid Hasanpour Sigaroodi  2 , Hamid Neshandar Asli  1
Affiliations

Comparison of marginal leakage and retentive strength of implant-supported milled zirconia and cobalt-chromium copings cemented with different temporary cements

Amirreza Hendi et al. Dent Res J (Isfahan). .

Abstract

Background: Few studies assessed the effect of coping material (particularly milled metal copings) on the retentive strength of cements and reported contradictory results. Thus, this study aims to assess the marginal leakage and retentive strength of implant-supported milled zirconia and cobalt-chromium (Co-Cr) copings cemented with different temporary cements.

Materials and methods: In this in vitro study, Zirconia and Co-Cr copings were fabricated on 100 straight titanium abutments. Each group of copings was divided into five subgroups (n = 10) for the use of different cements: permanent zinc-phosphate (ZP) cement, temporary zinc oxide eugenol cement (temp bond [TB]), calcium hydroxide-based temporary cement (Dycal [DC]), polymer-based eugenol-free acrylic-urethane temporary cement (Dentotemp [DT]), and methacrylate-based temporary cement (Implantlink [IL]). The retentive strength and marginal leakage of restorations were assessed. Data were analyzed by one-way ANOVA, Tukey, and Fisher's exact tests (α = 0.05).

Results: In the Co-Cr group, the retentive strength values (in Newtons) were as follows: ZP (411.40 ± 5.19) >DC (248.80 ± 5.01) >IL (200.10 ± 5.06) >DT (157.90 ± 5.19) >TB (98.50 ± 6.88). This order was as follows in the zirconia group: ZP (388.70 ± 5.35) >DC (226.60 ± 5.08) >IL (179.00 ± 3.71) >DT (136.00 ± 4.88) >TB (78.60 ± 3.50). All pairwise comparisons were statistically significant (P < 0.001). The difference in marginal leakage was not significant among the groups (P = 0.480).

Conclusion: The type of coping material and cement type significantly affected retentive strength, but not marginal leakage, of implant restorations. Milled Co-Cr copings showed higher retentive strength than zirconia copings, and ZP cement followed by DC yielded the highest retention.

Keywords: Computer-aided design; dental cements; dental prosthesis; implant-supported.

PubMed Disclaimer

Conflict of interest statement

The authors of this manuscript declare that they have no conflicts of interest, real or perceived, financial or non-financial in this article.

Figures

Figure 1
Figure 1
Retentive strength test.
Figure 2
Figure 2
Assessment of basic fuchsine dye penetration into the zirconia coping to determine the leakage grade under a video measuring machine.
Figure 3
Figure 3
Frequency of leakage grades in the study groups. Co-Cr: Cobalt-chromium, ZP: Zinc-phosphate, TB: Temp bond, DC: Dycal, DT: Dentotemp, IL: Implantlink, Zr: Zirconium.
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

References

    1. Saleh M, Taşar-Faruk S. Comparing the marginal leakage and retention of implant-supported restorations cemented by four different dental cements. Clin Implant Dent Relat Res. 2019;21:1181–8. - PubMed
    1. Lopes AC, Machado CM, Bonjardim LR, Bergamo ET, Ramalho IS, Witek L, et al. The effect of CAD/CAM crown material and cement type on retention to implant abutments. J Prosthodont. 2019;28:e552–6. - PubMed
    1. Alvarez-Arenal A, Gonzalez-Gonzalez I, deLlanos-Lanchares H, Brizuela-Velasco A, Ellacuria-Echebarria J. The selection criteria of temporary or permanent luting agents in implant-supported prostheses: In vitro study. J Adv Prosthodont. 2016;8:144–9. - PMC - PubMed
    1. Sarfaraz H, Hassan A, Shenoy KK, Shetty M. An in vitro study to compare the influence of newer luting cements on retention of cement-retained implant-supported prosthesis. J Indian Prosthodont Soc. 2019;19:166–72. - PMC - PubMed
    1. Farzin M, Torabi K, Ahangari AH, Derafshi R. Effect of abutment modification and cement type on retention of cement-retained implant supported crowns. J Dent (Tehran) 2014;11:256–62. - PMC - PubMed

LinkOut - more resources