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The International Journal of Prosthodontics
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Int J Prosthodont 32 (2019), No. 6     7. Nov. 2019
Int J Prosthodont 32 (2019), No. 6  (07.11.2019)

Page 530-532, doi:10.11607/ijp.6210, PubMed:31664270


Influence of Different Luting Systems on Microleakage of CAD/CAM Composite Crowns: A Pilot Study
Schlenz, Maximiliane Amelie / Skroch, Marianne / Schmidt, Alexander / Rehmann, Peter / Wöstmann, Bernd
Purpose: To investigate whether (1) the curing mode and (2) the use of the corresponding or noncorresponding crown luting system have an impact on the microleakage of computer-aided design/ computer-assisted manufacture (CAD/CAM) composite crowns after chewing simulation.
Materials and Methods: Two CAD/CAM composite blocks (Lava Ultimate [n = 20] and LuxaCam Composite [n = 20]) and their luting systems and curing modes (light curing [LC] or chemical curing [CC]) were investigated. A dye penetration test was used to detect the presence of microleakage.
Results: Independently of the luting system, the LC groups showed a significantly lower microleakage compared to the CC groups (P < .05). Furthermore, the CC groups exhibited a reduction of microleakage if the CAD/CAM block and luting system were from the same manufacturer.
Conclusion: For the CC mode, the corresponding block and luting system should be used.