A Investigate On Dental Bacterial Contamination Of Denta Three Ways Syringe And Dental Highspeed Air Turbine Handpieces

Objective:The problem of dentistry cross infection is attach importance to dentistry speciality people and pubic.At present in our country the stress of control the dentistry cross-infection is focus on disinfect of the dentistry's appliance,such as disinfect of the dental highspeed air turbine highspeed air tube handpiece,expand and file needle,dental forceps,and gain a certain production.But the dental units as basic equipment to make a diagnosis and give treatment to patient,lose sight of the dental unit waterlines disinfect intentionally and inadvertently.Come to light,in a disinfect system,a state of the whole process not to control is defeated the whole disinfect process.In another word,even if the dental highspeed air turbine highspeed air tube handpiece had a downright disinfect,but the water come out from the dental unit waterline is infectant,it will lead the patient and dentist infectant.In this years,the medical treatment institution make more monitoring and research in highspeed air turbine highspeed air tube handpiece with return flow valve and high temperature sterilization the dental highspeed air turbine highspeed air tube handpiece,three ways syringe,exceed water system,especially in the way of apply the dental ad reduce the possibility of infect each other between the patients.Three ways syringe is one of the most applied appliance in the denal treatment.It mostly function id cleaning oral cavity and drying the surface and cavity of tooth.It contact dortors and nurses directly with patients.And even if the metal head of the three ways syringe disinfect repeat is difficult to achieve the stipulate standard.Even if once disinfect after each patient,but it difficult to cleaning the bacterium and bloodd in the tiny pipe of three ways syringe,that is one of the commom disinfect faction of the dental patient infection in the hospital.It likes that dental highspeed air turbine highspeed air tube handpiece,it can cause siphon in the interdictory moment,and cause the cross-infection were approved by the laboratory of bacteriology,pathology, epideminology.A scholar shows by the germicuture research that the pollute rate of water sampling from the inside of three ways syringe is more than 92%.And three ways syringe is the most dotty tache of the daily disinfect chain,so the disinfect, sterilization and the guard against pollute of the three ways syringe should arose the enough recognition.In the daily monitoring,we sampling the bacterial contamination in the enter water pipe is overtake the standard.In order to fine the reason and find out the pollute thing of the enter water pipe,bring forward prevent and control measure.This research's aim is investigate the dental unit highspeed air tube handpiece and three ways syringe in a great stomatology hospital,ordinary dental bacterial pollute thing,find out dental highspeed air turbine highspeed air tube handpiece and three ways syringe bacterial pollute status quo and necessary to more improve on disinfect step.ADA had bring forward a dreamboat that control the bacterial of the dental unit waterline hereinafter 200CFU/ml.Every country in the worth had accepted this standard.This research refer to the international standard, investigation the bacterial of the dental unit waterline in a great stomatology hospital, and make a principium evaluate the rinse function to the tag end waterline bacterial of the dental highspeed air turbine highspeed air tube handpiece racing.Methods:Every Friday off duty,make sampling after general disinfect of dental unit waterline,make sampling for eighty dental unit's enter water pipe,three ways syringe in doctor seat and in the nurse seat and differ water come out from dental highspeed air turbine highspeed air tube handpiece.Use the asepsis test tube continuum get the water sampling,healing,leave in 4℃care,stay to survey.Result:1.In the eighty dental unit's enter water pipe,highspeed air tube handpiece and three ways syringe in the doctor seat and three ways syringe in the nurse seat all proved effective Staphylococcus,Streptococcus salivarius,Actinomycetes,and Actinomycetes most in the enter water pipe.2.The account of bacterium in the three ways syringe is more than in the highspeed air tube handpiece;.3.The account of bacterium in the different timely is different.The account of bacterium in the three ways syringe is the most in the first 2ml,the second place is the second 2ml,the least in the third 2ml,the direction is seems to increascent.The different of the account of bacterium in the highspeed air tube handpiece has not statistics sense.4.The different timely of the water sampling check the masculine bacterium and the masculine rate,thereinto the different of Streptococcus salivarius has statistics sense,it most in the third 2ml.Actinomycetes and Actinomycetes has no statistics sense.5.The account of bacterium in the different department water sampling is different,the account of bacterium is the most in the department of periodontal.6.The account of bacterium in the highspeed air tube handpiece and three ways syringe is most in the surgery,turn and turn about is the department of medicine, periodontics and orthodontics,the least is in the the department of prosthodontics.In the kind of the bacterium the most is Streptococcus salivarius,turn and turn about is Actinomycetes,and Actinomycetes.Conclusion:1.In the not disposed water sampling in the dental unit enter pipe all have the commom dental infection bacterium,so the dental water is a potential infection source.2.The pollute of the three ways syringe is more severity than the highspeed air turbine handpiece.3.The mostly bacterium in the three ways syringe and the highspeed air turbine handpiece of the dental unit is Streptococcus salivarius,Actinomycetes and Actinomycetes.4.The bacterium check out in the three ways syringe and the highspeed air turbine handpiece in the hospital are mostly in the surgery.