Effect of finish line design and cement space thickness on the marginal accuracy of monolithic zirconia crowns
DOI:
https://doi.org/10.14295/bds.2020.v23i3.1908Abstract
Objective: The purpose of this study was to evaluate the effect of finish line design and cement space thickness on the marginal accuracy of monolithic zirconia crowns. Materials and methods: Thirty crowns were fabricated from translucent zirconia (inCoris TZI) using Cerec in-Lab system and divided into three main groups (10 each) according to the finish line type of the die (knife-edge, chamfer, and shoulder). Every group was divided into two subgroups (5 each) according to cement space thickness (20 and50?m). Optical impressions were taken for the dies using the Cerec scanner and cement space was set twice for every finish line design; 20 and 50 ?m. The completed crowns were cemented to the dies and the marginal gap was evaluated. The collected data was statistically analyzed using Mann-Whitney U test and Kruskal-Wallis test and the significance level was set at P ? 0.05. Results: Regarding the marginal gap; there was no statistically significant difference between different finish line designs or between different cement space thicknesses. Conclusion: Neither finish line design nor cement space thickness has an effect on the marginal gap of inCoris TZI crowns.
Keywords
Cement space; Finish line; Marginal fit; Monolithic zirconia.
References
Raigrodski AJ. Contemprary materials and technologies for all-ceramic fixed partial dentures: A review of the literature. J Prosthet Dent 2004 Dec; 92(6):557-62. doi: 10.1016/j.prosdent.2004.09.015
Nakamura T, Dei N, Kojima T, Wakabayashi k. Marginal and internal fit of Cerec 3 CAD/CAM all ceramic crowns. Int J Prosthodont. 2003 May-Jun; 16(3):244-8. PMID: 12854786
Aboushelib MN, de Jager N, Kleverlaan CJ, Feilzer AJ. Effect of loading method on the fracture mechanics of two layered all-ceramic restorative systems. Dent Mater 2007 Aug; 23(8):952-9. doi: 10.1016/j.dental.2006.06.036.
Aboushelib MN, Kleverlaan CJ, Feilzer AJ. Microtensile bond strength of different components of core veneered all ceramic restorations. Part II: Zirconia veneering ceramics. Dent Mater 2006 Sep; 22(9):857-63. doi: 10.1016/j.dental.2005.11.014
Sirona Dental Systems GmbH. Translucent zirconia ceramic blocks for in Lab. Processing instructions: restoration production for crowns and bridges 2013; 1_22.
Ban S, Suzuki T, Yoshihara K, Sasaki K, Kawai T, Kono H. Effect of coloring on mechanical properties of dental zirconia. J Med Bio Eng 2014;34(1):24–9. doi: 10.5405/jmbe.1425
Goodacre CJ, Campagni WV, Aquilino SA. Tooth preparations for complete crowns: An art form based on scientific principles. J Prosthet Dent 2001 Apr; 85(4):363-76. doi: 10.1067/mpr.2001.114685
Beuer F, Aggstaller H, Edelhoff D, Gernet W, Sorensen J. Marginal and internal fits of fixed dental prostheses zirconia retainers. Dent Mater 2009 Jan; 25(1):94-102. doi: 10.1016/j.dental.2008.04.018
Beuer F, Aggstaller H, Richter J, Edelhoff D, Gernet W. Influence of preparation angle on marginal and internal fit of CAD/CAM fabricated zirconia crown copings. Quintessence Int. 2009 Mar; 40(3):243-50. PMID: 19417888
Goldman M, Laosonthorn P, White RR. Microleakage: full crowns and the dental pulp. J Endod 1992 Oct; 18(10):473-5. doi: 10.1016/S0099-2399(06)81345-2
McLean JW, Von Fraunhofer JA. The estimation of cement film thickness by an in vivo technique. Br Dent J 1971 Aug; 131(3):107-11. doi: 10.1038/sj.bdj.4802708
Wolfart S, Wegner SM, Al-Halabi A, Kern M. Clinical evaluation of marginal fit of a new experimental all-ceramic system before and after cementation. Int J Prosthodont 2003 Nov-Dec; 16(6):587-92. PMID: 14714835
Riccitiello F, Amato M, Leone R, Spagnuolo G, Sorrentino R. In vitro evaluation of the marginal fit and internal adaptation of zirconia and lithium disilicate single crowns: micro-ct comparison between different manufacturing procedures. Open Dent J. 2018 Feb; 22;12:160-72. doi: 10.2174/1874210601812010160
Grenade C, Mainjot A, Vanheusden A. Fit of single tooth zirconia copings: comparison between various manufacturing processes. J Prosthet Dent 2011 Apr; 105(4):249-55. doi: 10.1016/S0022-3913(11)60040-1
Cho SH, Nagy WW, Goodman JT, Solomon E, Koike M. The effect of multiple firings on the marginal integrity of pressable ceramic single crowns. J Prosthet Dent 2012 Jan; 107(1):17-23. doi: 10.1016/S0022-3913(12)60011-0
Ahmed WM, Abdallah MN, McCullagh AP, Wyatt CCL, Troczynski T, Carvalho RM. Marginal discrepancies of monolithic zirconia crowns: the influence of preparation designs and sintering techniques. J Prosthodont. 2019 Mar; 28(3):288-98. doi: 10.1111/jopr.13021
Schmitt J, Wichmann M, Holst S, Reich S. Restoring severely compromised anterior teeth with zirconia crowns and featheredged margin preparations: a 3-year follow-up of a prospective clinical trial. Int J Prosthodont 2010 Mar-Apr; 23(2):107-9. PMID: 20305846
Lang NP. Periodontal considerations in prosthetic dentistry. Periodontology 2000 1995 Oct; 9:118-31. doi: 10.1111/j.1600-0757.1995.tb00060.x
Carnevale G, Sterrantino SF, Di Febo G. Soft and hard tissue wound healing following tooth preparation to the alveolar crest. Int J Periodontics Restorative Dent 1983; 3(6):36-53. PMID: 6584413
Carnevale G, Di Febo G, Fuzzi M. A retrospective analysis of the perio-prosthetic aspect of teeth re-prepared during periodontal surgery. J Clin Periodontal 1990 May; 17(5):313-6. doi: 10.1111/j.1600-051x.1990.tb01095.x ~
Comlekoglu M, Dundar M, Ozcan M, Gungor M, Gokce B, Artunc C. Influence of cervical finish line type on the marginal adaptation of zirconia ceramic crowns. Oper Dent 2009 Sep-Oct; 34(5):586-92. doi: 10.2341/08-076-L
Poggio CE, Dosoli R, Ercoli C. A retrospective analysis of 102 zirconia single crowns with knife-edge margins. J Prosthet Dent 2012 May; 107(5):316-21. doi: 10.1016/S0022-3913(12)60083-3
Hamaguchi H, Cacciatore A, Tueller VM. Marginal distortion of the porcelain bonded-to metal complete crown: an SEM study. J Prosthet Dent 1982 Feb; 47(2):146-53. doi: 10.1016/0022-3913(82)90178-0
Limkangwalmongkol P, Kee E, Chiche G, Blatz M. Comparision of marginal fit between all-porcelain margin versus alumina-supported margin on procera alumina crowns. J Prosthodont. 2009 Feb; 18(2):162-6. doi: 10.1111/j.1532-849X.2008.00396.x
Shillingburg HT Jr, Hobo S, Fisher DW. Preparation design and margin distortion in porcelain-fused-to-metal restorations. J Prosthet Dent. 1973 Mar; 29(3):276-84. doi: 10.1016/0022-3913(73)90007-3
Faucher R, Nicholls JI. Distortion related to margin design in porcelain fused-to-metal restorations. J Prosthet Dent. 1980 Feb;43(2):149-55. doi: 10.1016/0022-3913(80)90178-x
Pera P, Gilodi S, Bassi F, Carossa S. In vitro marginal adaptation of alumina porcelain ceramic crowns. J Prosthet Dent. 1994 Dec; 72(6):585-90. doi: 10.1016/0022-3913(94)90289-5
Rahshenas N, Motamedi MHK, Nazari MS, Salari MH, Modaber B. effect of shoulder and deep chamfer finish lines on marginal fitness of electroformed PFM restorations. J Interdiscipl Med Dent Sci. 2014; 2:145. doi:10.4172/2376-032X.1000145
Nemane V, Akulwar RS, Meshram S. the effect of various finish line configurations on the marginal seal and occlusal discrepancy of cast full crowns after cementation - An In-vitro Study. J Clin Diagn Res. 2015 Aug; 9(8):18-21. doi: 10.7860/JCDR/2015/12574.6283
Nakamura T, Tanaka H, Kinuta S, Akao T, Okamoto K, Wakabayashi K, et al. In vitro study on marginal and internal fit of CAD/CAM all ceramic crowns. Dent Mater J 2005 Sep; 24(3):456-9. doi: 10.4012/dmj.24.456
Iwai T, Komine F, Kobayashi K, Saito OA, Matsumura H. Influence of convergence angle and cement space on adaptation of zirconium dioxide ceramic copings. Acta Odont Scand 2008 Aug; 66(4):214-8. doi: 10.1080/00016350802139833
Shim JS, Lee JS, Lee JY, Choi YJ, Shin SW, Ryu JJ. Effect of software version and parameter settings on the marginal and internal adaptation of crowns fabricated with the CAD/CAM system. J Appl Oral Sci 2015 Oct; 23(5):515-22. doi: 10.1590/1678-775720150081
Colpani JT, Borba M, Bona AD. Evaluation of marginal and internal fit of ceramic crown copings. Dent Mater 2013 Feb; 29(2):174-80. doi: 10.1016/j.dental.2012.10.012
Beuer F, Edelhoff D, Gernet W, Naumann M. Effect of preparation angles on the precision of zirconia crown copings fabricated by CAD/CAM system. Dent Mater J. 2008 Nov; 27(6):814-20. doi: 10.4012/dmj.27.814
Holmes JR, Bayne SC, Holland GA, Sulik WD. Considerations in measurements of marginal fit. J Prosthet Dent 1989 Oct; 62(4):405-8. doi: 10.1016/0022-3913(89)90170-4
