A retrospective survey on long-term survival of posterior zirconia and porcelain-fused-to-metal crowns in private practice

Fusun Ozer, Francis K. Mante, Gerard Jules Chiche, Najeed Saleh, Takuro Takeichi, Markus B. Blatz

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

OBJECTIVES: This retrospective survey assessed the clinical survival of zirconia-based crowns (PFZ) and conventional porcelain- fused-to-metal (PFM) crowns on posterior teeth in private practice.

METHOD AND MATERIALS: A print survey of 13 private practitioners was conducted to assess the long-term survival of previously placed full-coverage crowns. The practitioners reported a total of 2,182 premolar (n = 881) and molar (n = 1,301) full-coverage single crowns, 1,102 PFZ and 1,080 PFM, fabricated by one dental laboratory (Cusp, Boston) and followed over 7.4 years. All post-cementation complications (eg, porcelain fractures and chippings) were recorded as failures. In the PFZ group, one veneering porcelain (CZR, Kuraray Noritake) was used in combination with three coping systems (Lava, 3M ESPE; Procera, Nobelbiocare; Katana, Kuraray Noritake). Kaplan-Meier survival analysis was used for statistical analyses.

RESULTS: The probability of survival of posterior crowns investigated over the period of study (7.4 years) was 99.3% for PFM and 99.2% for PFZ restorations. There was no statistically significant difference (P = .614) between PFZ and PFM groups. In the PFZ group, probability of survival was 97.7% for Lava, 100% for Procera, and 99.5% for Katana. There were no statistically significant differences (P = .34) between the three PFZ systems or the location of the crowns (premolar or molar; P = .454).

CONCLUSION: PFZ crowns fabricated with CZR and three commercial zirconia coping systems revealed excellent long-term success rates. Survival times and survival probabilities of posterior PFZ crowns did not differ from PFM crowns and were independent of type of coping system and location (molar or premolar teeth).

Original languageEnglish (US)
Pages (from-to)31-38
Number of pages8
JournalQuintessence international (Berlin, Germany : 1985)
Volume45
Issue number1
DOIs
StatePublished - Jan 1 2014

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Dental Porcelain
Private Practice
Crowns
Metals
Bicuspid
Tooth
Dental Laboratories
Cementation
Surveys and Questionnaires
zirconium oxide
Kaplan-Meier Estimate
Survival Analysis

ASJC Scopus subject areas

  • Medicine(all)

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A retrospective survey on long-term survival of posterior zirconia and porcelain-fused-to-metal crowns in private practice. / Ozer, Fusun; Mante, Francis K.; Chiche, Gerard Jules; Saleh, Najeed; Takeichi, Takuro; Blatz, Markus B.

In: Quintessence international (Berlin, Germany : 1985), Vol. 45, No. 1, 01.01.2014, p. 31-38.

Research output: Contribution to journalArticle

Ozer, Fusun ; Mante, Francis K. ; Chiche, Gerard Jules ; Saleh, Najeed ; Takeichi, Takuro ; Blatz, Markus B. / A retrospective survey on long-term survival of posterior zirconia and porcelain-fused-to-metal crowns in private practice. In: Quintessence international (Berlin, Germany : 1985). 2014 ; Vol. 45, No. 1. pp. 31-38.
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abstract = "OBJECTIVES: This retrospective survey assessed the clinical survival of zirconia-based crowns (PFZ) and conventional porcelain- fused-to-metal (PFM) crowns on posterior teeth in private practice.METHOD AND MATERIALS: A print survey of 13 private practitioners was conducted to assess the long-term survival of previously placed full-coverage crowns. The practitioners reported a total of 2,182 premolar (n = 881) and molar (n = 1,301) full-coverage single crowns, 1,102 PFZ and 1,080 PFM, fabricated by one dental laboratory (Cusp, Boston) and followed over 7.4 years. All post-cementation complications (eg, porcelain fractures and chippings) were recorded as failures. In the PFZ group, one veneering porcelain (CZR, Kuraray Noritake) was used in combination with three coping systems (Lava, 3M ESPE; Procera, Nobelbiocare; Katana, Kuraray Noritake). Kaplan-Meier survival analysis was used for statistical analyses.RESULTS: The probability of survival of posterior crowns investigated over the period of study (7.4 years) was 99.3{\%} for PFM and 99.2{\%} for PFZ restorations. There was no statistically significant difference (P = .614) between PFZ and PFM groups. In the PFZ group, probability of survival was 97.7{\%} for Lava, 100{\%} for Procera, and 99.5{\%} for Katana. There were no statistically significant differences (P = .34) between the three PFZ systems or the location of the crowns (premolar or molar; P = .454).CONCLUSION: PFZ crowns fabricated with CZR and three commercial zirconia coping systems revealed excellent long-term success rates. Survival times and survival probabilities of posterior PFZ crowns did not differ from PFM crowns and were independent of type of coping system and location (molar or premolar teeth).",
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T1 - A retrospective survey on long-term survival of posterior zirconia and porcelain-fused-to-metal crowns in private practice

AU - Ozer, Fusun

AU - Mante, Francis K.

AU - Chiche, Gerard Jules

AU - Saleh, Najeed

AU - Takeichi, Takuro

AU - Blatz, Markus B.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - OBJECTIVES: This retrospective survey assessed the clinical survival of zirconia-based crowns (PFZ) and conventional porcelain- fused-to-metal (PFM) crowns on posterior teeth in private practice.METHOD AND MATERIALS: A print survey of 13 private practitioners was conducted to assess the long-term survival of previously placed full-coverage crowns. The practitioners reported a total of 2,182 premolar (n = 881) and molar (n = 1,301) full-coverage single crowns, 1,102 PFZ and 1,080 PFM, fabricated by one dental laboratory (Cusp, Boston) and followed over 7.4 years. All post-cementation complications (eg, porcelain fractures and chippings) were recorded as failures. In the PFZ group, one veneering porcelain (CZR, Kuraray Noritake) was used in combination with three coping systems (Lava, 3M ESPE; Procera, Nobelbiocare; Katana, Kuraray Noritake). Kaplan-Meier survival analysis was used for statistical analyses.RESULTS: The probability of survival of posterior crowns investigated over the period of study (7.4 years) was 99.3% for PFM and 99.2% for PFZ restorations. There was no statistically significant difference (P = .614) between PFZ and PFM groups. In the PFZ group, probability of survival was 97.7% for Lava, 100% for Procera, and 99.5% for Katana. There were no statistically significant differences (P = .34) between the three PFZ systems or the location of the crowns (premolar or molar; P = .454).CONCLUSION: PFZ crowns fabricated with CZR and three commercial zirconia coping systems revealed excellent long-term success rates. Survival times and survival probabilities of posterior PFZ crowns did not differ from PFM crowns and were independent of type of coping system and location (molar or premolar teeth).

AB - OBJECTIVES: This retrospective survey assessed the clinical survival of zirconia-based crowns (PFZ) and conventional porcelain- fused-to-metal (PFM) crowns on posterior teeth in private practice.METHOD AND MATERIALS: A print survey of 13 private practitioners was conducted to assess the long-term survival of previously placed full-coverage crowns. The practitioners reported a total of 2,182 premolar (n = 881) and molar (n = 1,301) full-coverage single crowns, 1,102 PFZ and 1,080 PFM, fabricated by one dental laboratory (Cusp, Boston) and followed over 7.4 years. All post-cementation complications (eg, porcelain fractures and chippings) were recorded as failures. In the PFZ group, one veneering porcelain (CZR, Kuraray Noritake) was used in combination with three coping systems (Lava, 3M ESPE; Procera, Nobelbiocare; Katana, Kuraray Noritake). Kaplan-Meier survival analysis was used for statistical analyses.RESULTS: The probability of survival of posterior crowns investigated over the period of study (7.4 years) was 99.3% for PFM and 99.2% for PFZ restorations. There was no statistically significant difference (P = .614) between PFZ and PFM groups. In the PFZ group, probability of survival was 97.7% for Lava, 100% for Procera, and 99.5% for Katana. There were no statistically significant differences (P = .34) between the three PFZ systems or the location of the crowns (premolar or molar; P = .454).CONCLUSION: PFZ crowns fabricated with CZR and three commercial zirconia coping systems revealed excellent long-term success rates. Survival times and survival probabilities of posterior PFZ crowns did not differ from PFM crowns and were independent of type of coping system and location (molar or premolar teeth).

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