Title
Testing various dowel systems under load to failure and cyclic loading: In this study, cast post and core, glass fiber and prefa,Used
Delivery time: 8-12 business days (International)
New post and core systems such as glass fiber posts with composite resin cores, are continuously developed and praised for their esthetics and similar elastic modulus to dentin. In this study, three groups of post and core systems (cast post and core, glass fiber and prefabricated metal posts) are tested for resistance to fracture under a continuous load and cyclic loading under similar oral conditions. Zinc phosphate and Panavia 21 were used as cements of choice because of their long history of reliability and dependability. Marginal gap measurements were acquired using a high powered microscope before and after testing in the cyclic loading groups. For the load to failure groups, a constant but slow speed load was applied to the teeth till failure. The two hypotheses for this study were: the glass fiber group would have less marginal gap opening on the lingual after cyclic loading than the other groups. The second hypothesis was the cast post and core would have a higher load to failure than the other groups in this study.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
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