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Published in: Clinical Oral Investigations 6/2023

Open Access 11-12-2022 | Veneer | Research

Influence of dental prophylaxis procedures on the tooth veneer interface in resin-based composite and polymer-infiltrated ceramic veneer restorations: an in vitro study

Authors: Lena Unterschütz, Florian Fuchs, Laura-Antonia Mayer, Andreas Koenig, Nadia Challakh, Ellen Schulz-Kornas, Dirk Ziebolz, Sebastian Hahnel

Published in: Clinical Oral Investigations | Issue 6/2023

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Abstract

Objectives

The aim of this study was to investigate the influence of dental prophylaxis cleaning procedures and artificial aging on veneers in human teeth. The external marginal and internal tooth veneer as well as the restoration surfaces were examined.

Material and methods

Thirty-two extracted premolars were restored with resin-based composite (RBC) and polymer-infiltrated ceramic network (PICN) veneers. Artificial aging by alternating thermocycling and subsequent prophylaxis procedure (glycine-based powder air polishing or ultrasonic scaling) was conducted for five consecutive cycles. The external marginal interface was examined by height profile measurements and the internal interface was investigated using micro X-ray computed tomography. In addition, the surface texture of the veneer surface was analyzed using confocal laser scanning microscopy.

Results

The application of both prophylaxis procedures resulted in a deepening of the marginal interface (10 µm ± 8 µm) for materials. Furthermore, the internal interface of PICN restorations showed marginal gaps after both treatments and artificial aging (16 µm ± 3 µm). In contrast to the RBC specimens, a significant increase in surface roughness was identified for PICN veneers after ultrasonic scaling.

Conclusions

The marginal and internal interface regions in veneers fabricated from PICN and RBC were affected by prophylaxis procedures. Furthermore, it may result in increased veneer surface roughness, especially in PICN and after ultrasonic scaling, which might affect bioadhesion and longevity.

Clinical relevance

After dental prophylaxis procedures, examination of the marginal and the internal interface as well as the veneer surface provides a precise insight into damage mechanisms and offers an assessment of longevity.
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Metadata
Title
Influence of dental prophylaxis procedures on the tooth veneer interface in resin-based composite and polymer-infiltrated ceramic veneer restorations: an in vitro study
Authors
Lena Unterschütz
Florian Fuchs
Laura-Antonia Mayer
Andreas Koenig
Nadia Challakh
Ellen Schulz-Kornas
Dirk Ziebolz
Sebastian Hahnel
Publication date
11-12-2022
Publisher
Springer Berlin Heidelberg
Published in
Clinical Oral Investigations / Issue 6/2023
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-022-04816-z

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