Abstract
Abstract: Purpose: To evaluate color stability and fracture resistance of CAD/CAM and manually fabricated tooth colored materials as crowns on primary molars. Methodology : Eighty epoxy replicas (Vertex- Dental B.V., The Netherlands) of minimally prepared primary molar were constructed to receive a tooth colored crown. Replicas were assigned into 4 groups (n=20) according to crown material used: CAD/CAM PMMA blocks (Telio Cad, Ivoclar Vivadent AG, Liechtenstein) [CC], self-polymerizing temporary resin material [SP] (Snap, Parkell, NY 11717 USA), auto-mix temporary resin material [AT] (Telio CS CB SP (∆E =5.4 ± 1.6), AM (∆E =6.7 ± 1.2) and TP (∆E =4.4 ± 2.5). On the other hand, CC crowns demonstrated high color stability (∆E=1.7 ± 0.2). CAD/CAM crowns demonstrated significantly higher fracture resistance (1417.9 ± 62 N) compared to manually fabricated crowns (SP=1096 ± 50, AM=989 ± 41 and TP=1297 ± 45). Conclusions: CAD/CAM PMMA crowns revealed superior fracture resistance and color stability properties suitable for long-term clinical performance within the primary molars.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
