These Large C shaped retractors are perfect for all cosmetic dentistry and teeth whitening needs. With a flexible yet durable plastic, these cheek retractors can be reused, providing the appropriate sterilisation has occurred. These cheek retractors can be sterilised with pressurised steam or autoclave. Replacement retractors are cost effective and can be discarded after each use if desired. Cheek Retractors should be sterilized on first use, and each use. This selection comes with 10 retractors and is perfect for professional use, as well as home use, if you need to top up on your whitening routine this is the perfect product.