Patricia A. Murray Dental Corp. v. Dentsply Int'l, Inc.

*261Plaintiffs brought this action on behalf of California dentists who purchased the Cavitron ultrasonic scaler (Cavitron) for use during oral surgical procedures. Plaintiffs sued defendant Dentsply International, Inc. (Dentsply)-the manufacturer and marketer of the Cavitron-asserting causes of action under the Unfair Competition Law (UCL) ( Bus. & Prof. Code, §§ 17200 et seq. ) and for breach of express warranty. The gist of plaintiffs' claims is that the Directions for Use (Directions) indicate Cavitrons can be used in " '[p]eriodontal debridement for all types of periodontal diseases,' "…