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Attitudes, practice, and experience of German dentists regarding repair restorations

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Abstract

Objectives

The aim of the present study was to perform a representative survey among German dentists about attitudes, practice, and experience regarding single-tooth repair restorations.

Materials and methods

An anonymous questionnaire was designed and mailed to all registered dentists in Lower Saxony (n = 6600). Twenty-eight percent were returned (n = 1852), and n = 1805 could be analyzed. Statistical analyses were done by Wilcoxon signed-rank tests, Kruskal-Wallis tests, and ordered logistic regressions (p < 0.05).

Results

Only 2.2 % of the dentists declared to never perform repair restorations. Composite restorations were repaired significantly more often than all other materials. Frequency of performing repair restorations was partially associated to dentist-related factors. The decision for repairing a restoration was dependent on several tooth- and restoration-associated variables. The main indications for repair were the partial loss of restoration or adjacent tooth structure as well as chipping and endodontic access cavities of crowns. Repair restorations were mostly done with composite using various different preconditioning techniques. Overall patients’ acceptance was reported to be high. Most of the dentists considered repair restorations as permanent restoration with a moderate to high longevity. Estimated success of repair restorations depended significantly on the dentists’ experiences (frequency and techniques of repair restorations).

Conclusions

Repair restorations were often performed and were well accepted by dentists and patients, but indications for repair restorations as well as applied materials and techniques varied distinctly.

Clinical relevance

Repairs of single-tooth restorations are well accepted and frequently performed, but indications, techniques, and materials require further research.

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Acknowledgments

The authors want to thank the Zahnärztekammer Niedersachsen for their support and cooperation and all participating dentists for their contributions.

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Authors and Affiliations

  1. Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany

    Philipp Kanzow, Robin Hoffmann, Claudia Tschammler, Tina Rödig & Annette Wiegand

  2. Department of Medical Statistics, University Medical Center Göttingen, Humboldtallee 32, Göttingen, 37073, Germany

    Jochen Kruppa

Authors
  1. Philipp Kanzow
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  2. Robin Hoffmann
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  3. Claudia Tschammler
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  4. Jochen Kruppa
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  5. Tina Rödig
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  6. Annette Wiegand
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Corresponding author

Correspondence to Philipp Kanzow.

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Funding

This study was funded by Zahnärztekammer Niedersachsen by mailing the questionnaire together with personalized cover letters and stamped return envelopes to all registered dentists in Lower Saxony.

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by the local ethics committee (no. 18/11/14).

Informed consent

Informed consent was obtained from all individual participants included in the study.

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Kanzow, P., Hoffmann, R., Tschammler, C. et al. Attitudes, practice, and experience of German dentists regarding repair restorations. Clin Oral Invest 21, 1087–1093 (2017). https://doi.org/10.1007/s00784-016-1859-3

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  • DOI: https://doi.org/10.1007/s00784-016-1859-3

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