Marginal discrepancy and microleakage in crown-copings fabricated by three CAD/CAM systems: An in vitro study

Abstract

The purpose of this study was to evaluate and compare the microleakage and marginal discrepancy of ceramic crown-copings fabricated by three different CAD/CAM systems. Material and methods: Thirty extracted premolars were prepared for complete all-ceramic crowns with: total convergence 10-degree, 2 mm occlusal reduction, 4.5 mm height, 1.3 mm circular reduction and chamfer marginal preparation. They were divided into three groups and each group (n = 10) received a ceramic crown-coping fabricated by one of three CAD/CAM systems: Procera, KaVo Everest and Cerec inLab. The copings were cemented with Panavia F 2.0. After thermal cycling, the teeth were immersed in 2% basic fuchsine dye for 24 hours. Microleakage was scored using a five-point scale and evaluated under a stereomicroscope at ×18. Marginal discrepancies were assessed with scanning electronic microscope at ×150, with measurements at 50 different points. Data were subjected to a chisquare test, Kolmogorov-Smirnov test and using Rho Spearman’s correlation test (P < 0.05). Results: Cerec inLab CAD/CAM crown-copings showed significant microleakage compared to Procera and KaVo Everest (P = 0.031). No significant differences were observed between Procera and the KaVo Everest system (P > 0.05). No significant differences were found in marginal discrepancies for the Procera (62.58 ± 8.98 μm) and KaVo Everest systems (65.54 ± 18.56 μm), (P = 0.941). Significant differences were found for Cerec inLab (132.18 ± 27.75 μm) compared with Procera and KaVo Everest (P = 0.0001). No correlation between the marginal discrepancies and microleakage for the three CAD/CAM crown-copings systems. Conclusions: Cerec inLab CAD/CAM crown-copings showed significantly higher values for microleakage and marginal discrepancy in comparison with Procera and KaVo Everest CAD/CAM crown-copings.

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Herrera, M. , Catalán, A. , Flores, M. and Martínez, A. (2012) Marginal discrepancy and microleakage in crown-copings fabricated by three CAD/CAM systems: An in vitro study. Open Journal of Stomatology, 2, 163-169. doi: 10.4236/ojst.2012.23030.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] McLean, J.W. (2001) Evolution of dental ceramics in the twentieth century. Journal of Prosthetic Dentistry, 85, 61-66. doi:10.1067/mpr.2001.112545
[2] Kokubo, Y., Ohkubo, C., Tsumita, M., Miyashita, A., Vult Von Steyern, P. and Fukushima, S. (2005) Clinical marginal and internal gaps of Procera AllCeram crowns. Journal of Oral Rehabilitation, 32, 526-530. doi:10.1111/j.1365-2842.2005.01458.x
[3] Bindl, A. and M?rmann, W.H. (2005) Marginal and internal fit of all-ceramic CAD/CAM crown-copings on chamfer preparations. Journal of Oral Rehabilitation, 32, 441-447. doi:10.1111/j.1365-2842.2005.01446.x
[4] Strub, J.R., Rekow, D. and Witkowski, S. (2006) Com- puter-aided design and fabrication of dental restorations. Current systems and future possibilities. The Journal of the American Dental Association, 137, 1289-1296.
[5] Naert, I., Van Der Donck, A. and Beckers, L. (2005) Precision of fit and clinical evaluation of all-ceramic full restorations followed between 0.5 and 5 years. Journal of Oral Rehabilitation, 32, 51-57. doi:10.1111/j.1365-2842.2004.01374.x
[6] Going, R.E. and Sawinski, V.J. (1966) Microleakage of a new restorative material. The Journal of the American Dental Association, 73, 107-115.
[7] Gwinnett, J.A., Tay, F.R., Pang K.M. and Wei, S.H.Y. (1995) Comparison of three methods of critical evaluation of microleakage along restorative interfaces. The Journal of Prosthetic Dentistry, 74, 575-585. doi:10.1016/S0022-3913(05)80308-7
[8] White, S.N., Ingles, S. and Kipnis, V. (1994) Influence of marginal opening on microleakage of cemented artificial crowns. The Journal of Prosthetic Dentistry, 71, 257-264. doi:10.1016/0022-3913(94)90464-2
[9] Gu, X.-H. and Kern, M. (2003) Marginal discrepancies and leakage of all-ceramic crowns: Influence of luting agents and aging conditions. The International Journal of Prosthodontics, 16, 109-116.
[10] Albert, F.E. and El-Mowafy, O.M. (2004) Marginal ad- aptation and microleakage of Procera AllCeram crowns with four cements. The International Journal of Prost- hodontics, 17, 529-535.
[11] Piwowarczyk, A., Lauer, H.C. and Sorensen, J.A. (2005) Microleakage of various cementing agents for full cast crowns. Dental Materials, 21, 445-453. doi:10.1016/j.dental.2004.07.009
[12] Gerdolle, D.A., Mortier, E., Loos-Ayav, C., Jacquot, B. and Panighi, M. (2005) In vitro evaluation of microleakage of indirect composite inlays cemented with four luting agents. The Journal of Prosthetic Dentistry, 93, 563-570. doi:10.1016/j.prosdent.2005.04.004
[13] Jacobs, M.S. and Windeler, A.S. (1991) An investigation of dental luting cement solubility as a function of the marginal gap. The Journal of Prosthetic Dentistry, 65, 436-442. doi:10.1016/0022-3913(91)90239-S
[14] Mj?r, I.A., Moorhead, J.E. and Dahl, J.E. (2000) Reasons for replacement of restorations in permanent teeth in general dental practice. International Dental Journal, 50, 362-366.
[15] Holmes, J.R., Bayne, S.C., Holland, G.A. and Sulik, W.D. (1989) Considerations in measurement of marginal fit. The Journal of Prosthetic Dentistry, 62, 405-408. doi:10.1016/0022-3913(89)90170-4
[16] McLean, J.W. and Von Fraunhofer, J.A. (1971) The estimation of cement film thickness by an in vivo technique. British Dental Journal, 131, 107-111. doi:10.1038/sj.bdj.4802708
[17] May, K.B., Russell, M.M., Razzoog, M.E. and Lang, B.R. (1998) Precision of fit: The Procera AllCeram crown. The Journal of Prosthetic Dentistry, 80, 394-404. doi:10.1016/S0022-3913(98)70002-2
[18] Nakamura, T. Nonaka, M. and Maruyamam, T. (2000) In vitro fitting accuracy of copy-milled alumina cores and all-ceramic crowns. The International Journal of Prost- hodontics, 13, 189-193.
[19] Rinke, S., Huls, A. and Jahn, L. (1995) Marginal accuracy and fracture strength of conventional and copy-milled all-ceramic crowns. The International Journal of Prosthodontics, 8, 303-310.
[20] Suárez, M.J., González de Villaumbrosia, P., Pradíes, G. and Lozano, J.F. (2003) Comparison of the marginal fit of Procera AllCeram crowns with two finish lines. The International Journal of Prosthodontics, 16, 229-232.
[21] Okutan, M., Heydecke, G., Butz, F. and Strub, J.R. (2006) Fracture load and marginal fit of shrinkage-free ZrSiO4 all-ceramic crowns after chewing simulation. Journal of Oral Rehabilitation, 33, 827-832. doi:10.1111/j.1365-2842.2006.01637.x
[22] Boening, K.W., Wolf, B.H., Schmidt, A.E., K?stner, K. and Walter, M.H. (2000) Clinical fit of Procera AllCeram crowns. The Journal of Prosthetic Dentistry, 84, 419-424. doi:10.1067/mpr.2000.109125
[23] Ernst, C.-P., Canbek, K., Eulert, T. and Willershausen, B. (2004) In vivo validation of the historical in vitro thermocycling temperature range for dental materials testing. Clinical Oral Investigations, 8, 130-138. doi:10.1007/s00784-004-0267-2
[24] Groten, M., Axmann, D., Pr?bster, L. and Weber, H. (2000) Determination of the minimum number of marginal gap measurements required for practical in vitro testing. Journal of Prosthetic Dentistry, 83, 40-49. doi:10.1016/S0022-3913(00)70087-4
[25] Crim, G.A. and García-Godoy, F. (1987) Microleakage: The effect of storage and cycling duration. The Journal of Prosthetic Dentistry, 57, 574-576. doi:10.1016/0022-3913(87)90339-8
[26] Blatz, M., Sadan, A., Arch, G. and Lang, B.R. (2003) In vitro evaluation of long-term bonding of Procera AllCe-ram alumina restorations with a modified resin luting agent. The Journal of Prosthetic Dentistry, 89, 381-387. doi:10.1067/mpr.2003.89
[27] Beschnidt, S.M. and Strub, J.R. (1999) Evaluation of the marginal accuracy of different all-ceramic crown sys- tems after simulation in artificial mouth. Journal of Oral Rehabilitation, 26, 582-593. doi:10.1046/j.1365-2842.1999.00449.x
[28] Nakamura, T., Die, N., Kojima, T. and Wakabayashi, K. (2003) Marginal and internal fit of Cerec 3 CAD/CAM all-ceramic crowns. The International Journal of Prost- hodontics, 16, 244-248.
[29] Balkaya, M., Cinar, A. and Pamuk, S. (2005) Influence of firing cycles on the margin distortion of 3 all-ceramic crowns systems. The Journal of Prosthetic Dentistry, 95, 346-355. doi:10.1016/j.prosdent.2005.02.003

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