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Clinical Oral Investigations
Published in: Clinical Oral Investigations 5/2017

Open Access 01-06-2017 | Original Article

Do CAD/CAM dentures really release less monomer than conventional dentures?

Authors: Patricia-Anca Steinmassl, Verena Wiedemair, Christian Huck, Florian Klaunzer, Otto Steinmassl, Ingrid Grunert, Herbert Dumfahrt

Published in: Clinical Oral Investigations | Issue 5/2017

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Abstract

Objectives

Computer-aided design (CAD)/computer-aided manufacturing (CAM) dentures are assumed to have more favourable material properties than conventionally fabricated dentures, among them a lower methacrylate monomer release. The aim of this study was to test this hypothesis.

Materials and methods

CAD/CAM dentures were generated from ten different master casts by using four different CAD/CAM systems. Conventional, heat-polymerised dentures served as control group. Denture weight and volume were measured; the density was calculated, and the denture surface area was assessed digitally. The monomer release after 7 days of water storage was measured by high-performance liquid chromatography.

Results

Whole You Nexteeth and Wieland Digital Dentures had significantly lower mean volume and weight than conventional dentures. Baltic Denture System and Whole You Nexteeth had a significantly increased density. Baltic Denture System had a significantly smaller surface area. None of the CAD/CAM dentures released significantly less monomer than the control group.

Conclusions

All tested dentures released very low amounts of methacrylate monomer, but not significantly less than conventional dentures. A statistically significant difference might nevertheless exist in comparison to other, less recommendable denture base materials, such as the frequently used autopolymerising resins.

Clinical relevance

CAD/CAM denture fabrication has numerous advantages. It enables the fabrication of dentures with lower resin volume and lower denture weight. Both could increase the patient comfort. Dentures with higher density might exhibit more favourable mechanical properties. The hypothesis that CAD/CAM dentures release less monomer than conventional dentures could, however, not be verified.
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Metadata
Title
Do CAD/CAM dentures really release less monomer than conventional dentures?
Authors
Patricia-Anca Steinmassl
Verena Wiedemair
Christian Huck
Florian Klaunzer
Otto Steinmassl
Ingrid Grunert
Herbert Dumfahrt
Publication date
01-06-2017
Publisher
Springer Berlin Heidelberg
Published in
Clinical Oral Investigations / Issue 5/2017
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-016-1961-6

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