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Wet weight total viable bacterial counts lactobacili streptoc occus mutans and PH of plaque accoumulated on three different types of polished and unpolished composite resins

Başlık çevirisi mevcut değil.

  1. Tez No: 6247
  2. Yazar: MUHAMMED PERVAİZ IQBAL
  3. Danışmanlar: PROF. DR. SÖYLEV İLFER
  4. Tez Türü: Doktora
  5. Konular: Diş Hekimliği, Dentistry
  6. Anahtar Kelimeler: Dental plak, Kompozit reçineler, Dental plaque, Composite resins
  7. Yıl: 1989
  8. Dil: İngilizce
  9. Üniversite: Hacettepe Üniversitesi
  10. Enstitü: Sağlık Bilimleri Enstitüsü
  11. Ana Bilim Dalı: Belirtilmemiş.
  12. Bilim Dalı: Belirtilmemiş.
  13. Sayfa Sayısı: Belirtilmemiş.

Özet

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Özet (Çeviri)

SUMMARY This study was designed to evaluate the wet weight, total CFU, Lactobacilli, S. mutans and pH of plaque accumulated on three different types of polished and unpolished composite resins. Express (macrofilled - chemically cured), Brillient (hybrid-VL cured) and Heliosit (microfilled - VL cured) were chosen for the test. The test was performed by fixing two 4x5x2 mm sized (one polished and other unpolished) samples of the one material into lingual flanges of intra-oral appliances which were worn by ten volunteers. After a 7-days period (for plaque formation). in mouth, plaque was scraped off the samples. Wet weight was measured on a digital ba lance. After homogenizing the plaque in normal saline, cultures were made on Blood Agar for total CFU, Rogosa SL Agar for Lactobacilli and Mitis - Salivarius-Bacitracin for S. mutans. pH of the solution was also measured by a Beckman pH meter. The culture media, after incubation of 48 hours at 37°C in a candle-jar, were counted for colonies. The same procedures were repeated for the other two types of composites. Results of the study showed that maximum plaque accumulated on macro- filled resins while hybrid and microfilled resins accumulated approximately the same amount. Plaque on the polished samples was more as compared to their un-polished counterparts. Number of bacteria (CFU) was maximum on microfilled resins. CFU per mg was less on samples which accumulated more wet weights. The recovery of Lactobacilli was inconsistent. S. mutans were found on all types of materials but maximum number was cultured from Heliosit samples. The number of S. mutans was less on unpolished samples

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