ÖLÇÜ YÜZEYİNE UYGULANAN FARKLI İŞLEMLERİN BAKTERİ KONTAMİNASYONUNA ETKİSİ

OZET Amac: Bu calismanin amaci 2 farkli olcu maddesi ile alinmis olculerden hazirlanan alci modellerdeki bakteri kontaminasyonunun incelenmesidir. Materyal ve Metod: Calisma kapsaminda, herhangi bir saglik sorunu olmayan yaslari 20-30 arasinda degisen 7 hastadan toplam 56 adet olcu alinmistir. Calisma icin; hidrokolloid ve elastomerik esasli olmak uzere iki farkli olcu maddesi kullanilmis ve model elde etme metoduna gore her bir olcu maddesi kendi arasinda dort gruba ayrilmistir: Grup 1: Olcu alindiktan sonra hicbir islem yapilmadan icerisine sert alci dokulmustur. Grup 2: Olcu alindiktan sonra, akan su altinda yikanmis ve icerisine sert alci dokulmustur. Grup 3: Olcu alindiktan sonra, sodyum hipoklorit (1:10) ile dezenfekte edilmis ve icerisine sert alci dokulmustur. Grup 4: Olcu alindiktan sonra, akan su altinda yikanmis, sodyum hipoklorit (1:10) ile dezenfekte edilmis ve icerisine sert alci dokulmustur. Alcilar sertlestikten sonra modeller olcuden ayrilmis ve pamuk ekuvyon cubugu ile damagin orta bolgesinden ornekler alinmistir. Kanli agar ortamina ekilen ornekler 3 gun sure ile 37 0 C’ ye ayarlanan etuvde bakteri uremesi icin bekletilmistir. Bulgular:  Her iki olcu maddesinde de degisik islem uygulanan butun gruplarda farkli bakteri turlerinin kontamine oldugu gorulmekle birlikte, en az bakteri cesidinin akan su altinda yikanip sodyum hipoklorit (1:10) ile dezenfekte edilen modellerde (Grup 4) oldugu saptanmistir. Sonuc: Elde edilen bulgular; sadece su ile yikamanin capraz enfeksiyon kontrolunde etkin bir yontem olmadigini gostermistir. Anahtar Kelimeler: Olcu maddeleri, model elde etme, capraz enfeksiyon. BACTERIAL CONTAMINATION EFFECT OF DIFFERENT PROCEDURES APPLICABLE TO IMPRESSION SURFACE ABSTRACT Aim: The aim of this study is to examine two different measures of substance contamination with bacteria in the plaster model made from impressions taken. Material and Method: Seven healthy dentate individuals aged 20-30 years were selected and 56 impressions were made. For this study hydrocolloid and elastomeric impression materials were used. According to the model casting method, impressions materials were divided into four groups: Group 1: Impressions with no treatment. Group 2: Impressions were only water rinsed. Group 3: Impressions were only disinfected with sodium hypochlorite (1:10). Group 4: impressions were water rinsed and then disinfected with sodium hypochlorite (1:10).  After gypsums hardening, the models were retrivied from impressions. For all groups bacterial swabs were collected with dry sterile cotton swab in mid palatal region of models. The samples were inoculated in blood agar media and incubated for bacterial growth for 3 days at 37 0 C in incubator. Results: In both impression material, but found to be contaminated with different species of bacteria in all groups underwent different processes, washed under running water of at least bacteria types sodium hypochlorite (1:10) and disinfected models (Group 4) were found to be. Conclusion: The findings are; showed only water washing is not an effective method for control of cross-infection. Key Words: Impression materials, model casting, cross-infection