Long-term survival of cast-gold inlays in a specialized dental practice

Erpenstein, H; Kerschbaum, T; Halfin, T.

doi:10.1007/s007840100119

Cited by 17 publications

(19 citation statements)

References 7 publications

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“…Erpenstein and others evaluated 2,071 gold inlays over a period of up to 30 years and found a survival rate of 97% after 10 years and 73% after 25 years. 12 Reiss and others obtained similar results in their long-term study with CAD/CAM-manufactured ceramic inlays. 29 After 10 years of wear, 90% of the restorations were assessed as a clinical success.…”

Section: Discussionsupporting

confidence: 57%

“…[1][2][3][4][5][6][7][8][9][10][11] However, long-term studies are needed to compare the clinical behavior of the different materials for posterior restorations. [12][13][14][15][16][17][18][19][20][21][22][23] The clinical performance of several esthetic tooth-colored materials has been analyzed in various studies. Frankenberger and others evaluated IPS Empress inlays and onlays over a period of six years.…”

Section: Introductionmentioning

confidence: 99%

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Clinical Evaluation of Ceramic Inlays Compared to Composite Restorations

Lange¹,

Pfeiffer²

2009

Operative Dentistry

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SUMMARYThis study compared the clinical performance of indirectly manufactured ceramic Evopress inlays with those of directly placed, fine particle hybrid Filtek Z250 composite restorations in posterior teeth.From January 2000 to October 2003, 109 patients received 264 Evopress (Wegold) ceramic inlays and 68 patients received 145 Filtek Z250 (3M ESPE) composite restorations in a dental office. Two-hundred and fifty ceramic inlays (95%) and 135 composite restorations (93%) were re-examined up to 57 months after placement. Modified USPHS criteria were used for the study. The worst finding of all the assessments was the overall assessment of individual restorations. On the basis of these criteria, 220 (88%) Evopress ceramic inlays were assessed as Alpha at the time of clinical re-examination, 26 (10%) were judged Beta and four ceramic inlays (2%) were rated Delta in the re-examination interval and thus categorized as failures. At the time of re-examination, 91 of the 135 composite restorations (67%) were judged Alpha, 36 restorations (26%) were rated Beta and three restorations (2%) were judged Charlie. Five restorations (4%) were categorized as failures (Delta). In two cases, there were marginal gap formations; there were also two cases of secondary caries after 28 and 35 months, as well as a fracture after 13 months. According to Kaplan and Meier, the survival rate after 57 months was 94% for ceramic inlays and 93% for composite restorations. The log rank test showed no significant differences in the survival curves.The current study showed that indirectly manufactured Evopress ceramic inlays performed better than direct Filtek Z250 composite restorations in marginal adaptation, color match and Ralf-Thomas Lange, Dr med, Dr med dent, dentist, private office, Mönchengladbach, Germany *Peter Pfeiffer, Prof Dr med dent, professor, Department of Prosthetic Dentistry, School of Oral Medicine, University of Cologne, Germany Clinical RelevanceEvopress ceramic inlays and Filtek Z250 composite restorations showed no significant difference regarding survival probability at 57 months when used as Class I and II restoratives in premolars and molars. Both materials demonstrated acceptable clinical performance, with a preference for the ceramic inlays. 264Operative Dentistry anatomic form. However, with regard to survival probability, there was no significant difference.

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Section: Discussionsupporting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Clinical Evaluation of Ceramic Inlays Compared to Composite Restorations

Lange¹,

Pfeiffer²

2009

Operative Dentistry

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“…After an observation period of 25 years, 2,071 restorations were included in the analysis. 13 In a two-year prospective study, Federlin and others found no difference in failure rate between partial gold crowns and partial ceramic crowns. 14 Stoll and others examined 3,518 cast gold restorations that were placed by students and postgraduate dentists at a dental school.…”

Section: Discussionmentioning

confidence: 94%

Long-term Survival of Cerec Restorations: A 10-year Study

Zimmer¹,

Göhlich²,

Rüttermann³

et al. 2008

Operative Dentistry

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SUMMARYThis clinical retrospective study assessed the longevity of CAD-CAM ceramic restorations (Cerec) inserted into the cavities of 95 patients in a private practice in Berlin, Germany.Three hundred and eight ceramic restorations were inserted into cavities in the posterior teeth of 95 patients between 1992 and 1994. One operator placed all restorations in a single sitting. Seventy-four patients, including 226 restorations, returned to the practice for a final examination at the end of 10 years. Reasons for non-attendance include relocation (15), death (2) and personal reasons (4). Again, all examinations were performed by a single examiner, however, not the same dentist who initially treated the patients. Out of the 226 restorations, 39 had been inserted in Class I cavities and 187 in Class II cavities (84 two-surfaces, 103 three or more surfaces). In the latter group, one cusp was replaced in 20 cases and two cusps in three cases. All the restorations were fabricated using Cerec 1 ( The results of the current study show that the survival rate of Cerec 1 restorations, as applied in this study, are comparable with the survival rates of cast gold restorations.

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“…The survival rate following a specific number of years is frequently presented as a statistical quantity, for instance, the five-year survival rate. 20,21 However, stating the survival rate in terms of a fixed number of years also implies that information resulting from cases beyond this limit is not taken into consideration. 19,22 To avoid this disadvantage, the method of actuarial life table analysis has found widespread use in medical studies, in particular studies of cancer treatments.…”

Section: Discussionmentioning

confidence: 99%

“…For this reason, the Kaplan-Meier method is regarded as being able to deliver more accurate estimates for the survival probability than the actuarial life table method 24 and is applied in numerous dental restoration studies. [8][9][10][11][16][17][18]20,21,25,26 Especially in large treatment centers, there are two reasons that the retrospective evaluation of patients' cards presents the risk of overlooking a substantial portion of interesting cases. For one thing, it can be difficult to recover all interesting cases and for another, the patients' cards may, for whatever reasons, be unavailable at the time of evaluation.…”

Section: Discussionmentioning

confidence: 99%