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Chair-side generated posterior lithium disilicate crowns after 4 years

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Abstract

Objectives

The objective of this prospective clinical study was to evaluate the performance of chair-side generated crowns after 48 months.

Materials and methods

Forty-one posterior full contour crowns made of a machinable lithium disilicate ceramic (e.max CAD LT) were inserted in 34 patients applying a chair-side CAD/CAM technique. One crown per patient was randomly selected for evaluation at baseline, after 6, 12, 24, 36, and 48 months according to modified US Public Health Service criteria.

Results

After a mean observation time of 51 months (min, 48 months; max, 56 months; SD ± 2.3 months), 29 crowns were available for re-examination. Within the observation period, one failure occurred due to a crown fracture after 2.8 years. Four abutment teeth revealed signs of biological complications: Two abutment changed sensibility perception from positive to negative within the first 13 month. Two abutment teeth showed secondary caries below the crown margin, one after the 24, and another after the 48 month recall. Both abutments received cervical adhesive composite fillings. The failure-free rate was 96.3 % after 4 years according to Kaplan–Meier (CI: upper bound, 4.4 years; lower bound, 4.7 years).

Conclusions

Due to the fact that the secondary caries was not caused as a result of an inaccuracy of the crown margins and the endodontic complications were in a normal range, the clinical performance of the crowns was completely satisfying.

Clinical relevance

The chair-side application of lithium disilicate crowns can be recommended.

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References

  1. Della Bona A, Kelly JR (2008) The clinical success of all-ceramic restorations. J Am Dent Assoc 139(Suppl):8S–13S

    PubMed  Google Scholar 

  2. Marquardt P, Strub JR (2006) Survival rates of IPS empress 2 all-ceramic crowns and fixed partial dentures: results of a 5-year prospective clinical study. Quintessence Int 37(4):253–259

    PubMed  Google Scholar 

  3. Etman MK, Woolford MJ (2010) Three-year clinical evaluation of two ceramic crown systems: a preliminary study. J Prosthet Dent 103(2):80–90. doi:10.1016/S0022-3913(10)60010-8

    Article  PubMed  Google Scholar 

  4. Giordano R (2006) Materials for chairside CAD/CAM-produced restorations. J Am Dent Assoc 137(Suppl):14S–21S

    PubMed  Google Scholar 

  5. Holand W, Schweiger M, Frank M, Rheinberger V (2000) A comparison of the microstructure and properties of the IPS Empress 2 and the IPS Empress glass-ceramics. J Biomed Mater Res 53(4):297–303

    Article  PubMed  Google Scholar 

  6. Wiedhahn K (2007) From blue to white: new high-strength material for Cerec–IPS e.max CAD LT. Int J Comput Dent 10(1):79–91

    PubMed  Google Scholar 

  7. Hickel R, Roulet JF, Bayne S, Heintze SD, Mjor IA, Peters M, Rousson V, Randall R, Schmalz G, Tyas M, Vanherle G (2007) Recommendations for conducting controlled clinical studies of dental restorative materials. Clin Oral Investig 11(1):5–33. doi:10.1007/s00784-006-0095-7

    Article  PubMed  Google Scholar 

  8. Kramer N, Ebert J, Petschelt A, Frankenberger R (2006) Ceramic inlays bonded with two adhesives after 4 years. Dent Mater 22(1):13–21

    Article  PubMed  Google Scholar 

  9. Fasbinder DJ, Dennison JB, Heys D, Neiva G (2010) A clinical evaluation of chairside lithium disilicate CAD/CAM crowns: a two-year report. J Am Dent Assoc 141(Suppl 2):10S–14S

    PubMed  Google Scholar 

  10. Sailer I, Feher A, Filser F, Gauckler LJ, Luthy H, Hammerle CH (2007) Five-year clinical results of zirconia frameworks for posterior fixed partial dentures. Int J Prosthodont 20(4):383–388

    PubMed  Google Scholar 

  11. Reich S, Uhlen S, Gozdowski S, Lohbauer U (2011) Measurement of cement thickness under lithium disilicate crowns using an impression material technique. Clin Oral Investig 15:521–526. doi:10.1007/s00784-010-0414-x

    Article  PubMed  Google Scholar 

  12. Reich S, Fischer S, Sobotta B, Klapper HU, Gozdowski S (2010) A preliminary study on the short-term efficacy of chairside computer-aided design/computer-assisted manufacturing-generated posterior lithium disilicate crowns. Int J Prosthodont 23(3):214–216

    PubMed  Google Scholar 

  13. Pjetursson BE, Sailer I, Zwahlen M, Hammerle CH (2007) 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 I: single crowns. Clin Oral Implants Res 18(Suppl 3):73–85

    Article  PubMed  Google Scholar 

Download references

Acknowledgments

The study was supported by Vivadent-Ivoclar.

Conflict of interest

The author SR has held oral presentations receiving a separate and appropriate honorarium, and he has held courses that were supported by Vivadent-Ivoclar with material.

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Authors and Affiliations

  1. Department of Prosthodontics, Implantology and Biomaterials, Medical Faculty, RWTH Aachen University, Pauwelsstrasse 30, 52074, Aachen, Germany

    Sven Reich

  2. Department of Prosthodontics and Material Sciences, University of Leipzig, Nuernberger Strasse 57, 04103, Leipzig, Germany

    Oliver Schierz

Authors
  1. Sven Reich
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  2. Oliver Schierz
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Corresponding author

Correspondence to Sven Reich.

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Reich, S., Schierz, O. Chair-side generated posterior lithium disilicate crowns after 4 years. Clin Oral Invest 17, 1765–1772 (2013). https://doi.org/10.1007/s00784-012-0868-0

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  • DOI: https://doi.org/10.1007/s00784-012-0868-0

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