100% Brand new and high qualityDescription:Product Name:Dental Expand Retractor With Saliva AspiratorItem Type:Dental Intraoral Lip Cheek Retractor Size: Large/SmallColor: Green/WhiteQuantity:1PcsProduct List:support frame*1tongue guard*1cheek retractor*2T pipe*1suction tube *2Instructions for use：1.Before the operation, the stomatologist puts the mouthpiece on the lips of the patient to maintain the mouth opening and reduce the fatigue caused by the patient's mouth opening. At the same time, the tongue block can effectively limit the movement of the tongue, and the suction port below it is just the low point of the sublingual area, so that the saliva in the mouth can be absorbed to the greatest extent, and the moisture can be effectively isolated, thus creating a relatively dry operation for the doctor link.2.Mainly used for orthodontics of teeth.3.Small(S) is usually for female and teenagers, Large(L) for adult male4.Suitable for dental clinics5.Size can be adjusted. It can be adapted to different mouth sizes, greatly increasing the comfort of the patient.Packing list:1Pcs*Dental Mouth OpenerYou can choose to buy the combination you want.