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BioMed Research International
Volume 2016, Article ID 4292761, 6 pages
Research Article

In Vitro Comparative Analysis of Fracture Resistance in Inlay Restoration Prepared with CAD-CAM and Different Systems in the Primary Teeth

1Department of Pedodontics, Faculty of Dentistry, Ordu University, 52100 Ordu, Turkey
2Department of Pedodontics, Faculty of Dentistry, Ataturk University, 25030 Erzurum, Turkey

Received 14 July 2016; Accepted 8 September 2016

Academic Editor: Elizabeta Gjorgievska

Copyright © 2016 Huseyin Simsek and Sera Derelioglu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objective. The aim of this study was to compare to fracture resistance test of inlay restorations prepared using direct inlay technique (Gradia® Direct Composite) and Indirect Restoration System® (Gradia Indirect Composite) and CAD/CAD system (Vita Enamic® Block). Study Design. 48 noncarious extracted maxillary second primary molars were randomly divided into 4 groups with 12 in each group. All the teeth were prepared based on inlay class II preparations except for the control group. Other groups were restored with Gradia Direct Composite, Gradia Indirect Composite, and Vita Enamic Block, respectively. All restorations were cemented self-adhesive dual cure resin (3M Espe, RelyX™ Unicem Aplicap). A fracture test was performed using a compressive load. Results were analyzed using one-way analysis of variance and Duncan’s post hoc multiple comparison tests (). Results. Vita Enamic Block and Gradia Indirect Composite showed significantly higher fracture resistance than Gradia Direct Composite (). There was no significant difference fracture resistance between Vita Enamic Block and Gradia Indirect Composite (). All restorations tested led to a significant reduction in fracture resistance (). Conclusion. In inlay restorations, Indirect Restoration Systems and CAD/CAM systems were applied successfully together with the self-adhesive dual cure resin cements in primary molars.