Title
A Comparative study of orthodontic coil springs: Factors affecting the quality of the orthodontic coil springs,Used
Delivery time: 8-12 business days (International)
The purpose of this study was to determine the effect of wire diameter, lumen size, and length of coil spring on the load produced as a function of displacement of SS and NITI coil springs. This study was based on 60 samples of open and closed coil springs. Open coil springs were tested in compression and closed coil spring in tension. The load values produced by coil spring as function of displacement were measured twice both during activation (loading) and deactivation (unloading). It was seen that effect of lumen size has less effect than the diameter of the wire on load produced and maximum load attained of open and closed coil spring. The length of the spring had the least effect.
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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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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.).
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.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.