Microbial Sampling of Carious Dentin

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1993 ◽  
Vol 27 (3-4) ◽  
pp. 19-25 ◽  
Author(s):  
Charles N. Haas

Repeated sampling of a water (raw, Ssished, recreational) is often used to assess microbial quality. Microbial distributions have often been found to be negative binomial distributed in such repeated samples. Under these conditions, it is shown that it is better to use a large number of small volume samples than vice versa, providing that the negative binomial dispersion parameter remains unaffected by volume. Further research is needed to determine if the latter assumption, which influences the conclusion proposed, is valid for various classes of microorganisms in various types of waters.


Author(s):  
Ilya Digel ◽  
Nuraly Sh. Akimbekov ◽  
Aida Kistaubayeva ◽  
Azhar A. Zhubanova
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2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Neha Juneja ◽  
Mithra N. Hegde

Objectives. To evaluate and compare the antifungal efficacy of 1.3% NaOCl/MTAD with 2.5% sodium hypochlorite (NaOCl), 2% chlorhexidine gluconate (CHX), and iodine potassium iodide (IKI). Materials and Methods. Fifty-two single rooted teeth were used which were divided into four groups with 10 teeth in each group: 2.5% NaOCl, 2% CHX, IKI, 1.3% NaOCl/MTAD, and physiologic saline. Two teeth served as negative controls and were placed in fresh brain-heart infusion broth (BHI) after autoclaving. The teeth were inoculated and incubated with Candida albicans after which the teeth were instrumented and irrigated with the test irrigants. The first microbial sampling was then performed and colony forming unit/mL (cfu/mL) was counted. The second microbial sampling was performed 1 week after instrumentation and irrigation. Results. The test irrigants were effective against C. albicans in both the first and second microbial samplings. When the irrigants were compared, there was no statistical difference in their activity in the 1st and 2nd microbial sampling. On comparison of the change in mean cfu/mL between the 1st and 2nd microbial samplings, the antifungal activity of the test irrigants was in the order 2.5% NaOCl > 2% CHX > 1.3% NaOCl/MTAD > IKI.


2012 ◽  
Vol 41 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Janez Mulec ◽  
Václav Krištůfek ◽  
Alica Chroňáková
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2015 ◽  
Vol 2015 ◽  
pp. 1-4
Author(s):  
Kevin C. Ching ◽  
Jules H. Sumkin

Objectives. To evaluate clinical outcomes following transvaginal catheter placement using transabdominal ultrasound guidance for management of pelvic fluid collections.Methods. A retrospective review was performed for all patients who underwent transvaginal catheter drainage of pelvic fluid collections utilizing transabdominal ultrasound guidance between July 2008 and July 2013. 24 consecutive patients were identified and 24 catheters were placed.Results. The mean age of patients was 48.1 years (range = 27–76 y). 88% of collections were postoperative (n=21), 8% were from pelvic inflammatory disease (n=2), and 4% were idiopathic (n=1). Of the 24 patients, 83% of patients (n=20) had previously undergone a hysterectomy and 1 patient (4%) was pregnant at the time of drainage. The mean volume of initial drainage was 108 mL (range = 5 to 570). Catheters were left in place for an average of 4.3 days (range = 1–17 d). Microbial sampling was performed in all patients with 71% (n=17) returning a positive culture. All collections were successfully managed percutaneously. There were no technical complications.Conclusions. Transvaginal catheter drainage of pelvic fluid collections using transabdominal ultrasound guidance is a safe and clinically effective procedure. Appropriate percutaneous management can avoid the need for surgery.


2000 ◽  
Vol 8 (3) ◽  
pp. 209-217 ◽  
Author(s):  
DANIEL Y.C. FUNG ◽  
LESLIE K. THOMPSON ◽  
BETH ANN CROZIER-DODSON ◽  
CURTIS L KASTNER

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