[en] STATEMENT OF PROBLEM: Various CAD/CAM processes are commercially available to manufacture zirconia copings. Comparative data on their performance in terms of fit are needed. PURPOSE: The purpose of this in vitro study was to compare the internal and marginal fit of single tooth zirconia copings manufactured with a CAD/CAM process (Procera; Nobel Biocare) and a mechanized manufacturing process (Ceramill; Amann Girrbach). MATERIAL AND METHODS: Abutments (n=20) prepared in vivo for ceramic crowns served as a template for manufacturing both Procera and Ceramill zirconia copings. Copings were manufactured and cemented (Clearfil Esthetic Cement; Kuraray) on epoxy replicas of stone cast abutments. Specimens were sectioned. Nine measurements were performed for each coping. Over- and under-extended margins were evaluated. Comparisons between the 2 processes were performed with a generalized linear mixed model (alpha=.05). RESULTS: Internal gap values between Procera and Ceramill groups were not significantly different (P=.13). The mean marginal gap (SD) for Procera copings (51(50) mum) was significantly smaller than for Ceramill (81(66) mum) (P<.005). The percentages of over- and under-extended margins were 43% and 57% for Procera respectively, and 71% and 29% for Ceramill. CONCLUSIONS: Within the limitations of this in vitro study, the marginal fit of Procera copings was significantly better than that of Ceramill copings. Furthermore, Procera copings showed a smaller percentage of over-extended margins than did Ceramill copings.
Disciplines :
Dentistry & oral medicine
Author, co-author :
Grenade, Charlotte ; Université de Liège - ULiège > Département de science dentaire > Département de science dentaire
MAINJOT, Amélie ; Université de Liège - ULiège > Département de science dentaire > Prothèse dentaire fixe - Anatomie bucco-dentaire
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
PF Manicone, P Rossi Iommetti, L Raffaelli, M Paolantonio, G Rossi, D Berardi Biological considerations on the use of zirconia for dental devices Int J Immunopathol Pharmacol 20 2007 9 12
SO Koutayas, T Vagkopoulou, S Pelekanos, P Koidis, JR Strub Zirconia in dentistry: part 2. Evidence-based clinical breakthrough Eur J Esthet Dent 4 2009 348 380
I Sailer, BE Pjetursson, M Zwahlen, CH Hammerle A systematic review of the survival and complication rates of all-ceramic and metal-ceramic reconstructions after an observation period of at least 3 years. Part II: Fixed dental prostheses Clin Oral Implants Res 18 2007 86 96
DA Felton, BE Kanoy, SC Bayne, GP Wirthman Effect of in vivo crown margin discrepancies on periodontal health J Prosthet Dent 65 1991 357 364
MS Jacobs, AS Windeler An investigation of dental luting cement solubility as a function of the marginal gap J Prosthet Dent 65 1991 436 442
NP Lang, RA Kiel, K Anderhalden Clinical and microbiological effects of subgingival restorations with overhanging or clinically perfect margins J Clin Periodontol 10 1983 563 578
I Sailer, A Fehér, F Filser, LJ Gauckler, H Lüthy, CH Hämmerle Five-year clinical results of zirconia frameworks for posterior fixed partial dentures Int J Prosthodont 20 2007 383 388
JA Sorensen A rationale for comparison of plaque-retaining properties of crown systems J Prosthet Dent 62 1989 264 269
AJ Hunter, AR Hunter Gingival margins for crowns: a review and discussion. Part II: Discrepancies and configurations J Prosthet Dent 64 1990 636 642
JA Sorensen A standardized method for determination of crown margin fidelity J Prosthet Dent 64 1990 18 24
ED Rekow, M Harsono, M Janal, VP Thompson, G Zhang Factorial analysis of variables influencing stress in all-ceramic crowns Dent Mater 22 2006 125 132 (Pubitemid 43061311)
M Tuntiprawon, PR Wilson The effect of cement thickness on the fracture strength of all-ceramic crowns Aust Dent J 40 1995 17 21
JW McLean Polycarboxylate cements. Five years' experience in general practice Br Dent J 132 1972 9 15
JW McLean, JA von Fraunhofer The estimation of cement film thickness by an in vivo technique Br Dent J 131 1971 107 111
SH Hung, KS Hung, JD Eick, RP Chappell Marginal fit of porcelain-fused-to-metal and two types of ceramic crown J Prosthet Dent 63 1990 26 31
S Karlsson The fit of Procera titanium crowns. An in vitro and clinical study Acta Odontol Scand 51 1993 129 134
HG Kashani, SC Khera, IA Gulker The effects of bevel angulation on marginal integrity J Am Dent Assoc 103 1981 882 885
KB May, MM Russell, ME Razzoog, BR Lang Precision of fit: the Procera AllCeram crown J Prosthet Dent 80 1998 394 404
S Reich, S Gozdowski, L Trentzsch, R Frankenberger, U Lohbauer Marginal fit of heat-pressed vs. CAD/CAM processed all-ceramic onlays using a milling unit prototype Oper Dent 33 2008 644 650
JD Weaver, GH Johnson, DJ Bales Marginal adaptation of castable ceramic crowns J Prosthet Dent 66 1991 747 753
F Beuer, P Neumeier, M Naumann Marginal fit of 14-unit zirconia fixed dental prosthesis retainers J Oral Rehabil 36 2009 142 149
P Coli, S Karlsson Fit of a new pressure-sintered zirconium dioxide coping Int J Prosthodont 17 2004 59 64 (Pubitemid 38184078)
A Bindl, WH Mormann Marginal and internal fit of all-ceramic CAD/CAM crown copings on chamfer preparations J Oral Rehabil 32 2005 441 447 (Pubitemid 40770036)
F Sulaiman, J Chai, LM Jameson, WT Wozniak A comparison of the marginal fit of In-Ceram, IPS Empress, and Procera crowns Int J Prosthodont 10 1997 478 484 (Pubitemid 127500357)
AF Quintas, F Oliveira, MA Bottino Vertical marginal discrepancy of ceramic copings with different ceramic materials, finish lines, and luting agents: an in vitro evaluation J Prosthet Dent 92 2004 250 257 (Pubitemid 39179848)
F Beuer, M Naumann, W Gernet, JA Sorensen Precision of fit: zirconia three-unit fixed dental prostheses Clin Oral Investig 13 2009 343 349
E Gonzalo, MJ Suárez, B Serrano, JF Lozano Marginal fit of Zirconia posterior fixed partial dentures Int J Prosthodont 21 2008 398 399
P Vigolo, F Fonzi An in vitro evaluation of fit of zirconium-oxide-based ceramic four unit fixed partial dentures, generated with three different CAD/CAM systems, before and after porcelain firing cycles and after glaze cycles J Prosthodont 17 2008 621 626
IS Yeo, JH Yang, JB Lee In vitro marginal fit of three all-ceramic crown systems J Prosthet Dent 90 2003 459 464
SM Beschnidt, JR Strub Evaluation of the marginal accuracy of different all-ceramic crown systems after simulation in the artificial mouth J Oral Rehabil 26 1999 582 593
M Groten, S Girthofer, L Pröbster Marginal fit consistency of copy-milled all-ceramic crowns during fabrication by light and scanning electron microscopic analysis in vitro J Oral Rehabil 24 1997 871 881 (Pubitemid 127732485)
J Tinschert, G Natt, W Mautsch, H Spiekermann, KJ Anusavice Marginal fit of alumina-and zirconia-based fixed partial dentures produced by a CAD/CAM system Oper Dent 26 2001 367 374
F Beuer, H Aggstaller, D Edelhoff, W Gernet, J Sorensen Marginal and internal fits of fixed dental prostheses zirconia retainers Dent Mater 25 2009 94 102
A Bindl, WH Mörmann Fit of all-ceramic posterior fixed partial denture frameworks in vitro Int J Periodontics Restorative Dent 27 2007 567 575
S Reich, K Kappe, H Teschner, J Schmitt Clinical fit of four-unit zirconia posterior fixed dental prostheses Eur J Oral Sci 116 2008 579 584
KW Boening, BH Wolf, AE Schmidt, K Kastner, MH Walter Clinical fit of Procera AllCeram crowns J Prosthet Dent 84 2000 419 424
Y Kokubo, C Ohkubo, M Tsumita, A Miyashita, P Vult von Steyern, S Fukushima Clinical marginal and internal gaps of Procera AllCeram crowns J Oral Rehabil 32 2005 526 530 (Pubitemid 40979202)
S Black, JN Amoore Measurement of forces applied during the clinical cementation of dental crowns Physiol Meas 14 1993 387 392 (Pubitemid 23284554)
JR Holmes, SC Bayne, GA Holland, WD Sulik Considerations in measurement of marginal fit J Prosthet Dent 62 1989 405 408
MT Lin, J Sy-Muñoz, CA Muñoz, CJ Goodacre, WP Naylor The effect of tooth preparation form on the fit of Procera copings Int J Prosthodont 11 1998 580 590 (Pubitemid 128504144)
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