LD Bite Registration TraysIncrease your accuracy with these by simultaneously obtaing Impression, and Bite registration. Totally eliminates potential compounding of errors. Saves chair time along with material. Bite Registration Trays - Plastic, Disposable Bite registration trays constructed of robust, polished plastic. Smooth edges ensure patient comfort. Ideal for bite registration, impressions, and counter impressions. Use disposable bite registration trays to economically reduce the risk of cross-contamination.