فهرست مطالب سمانه عقیقی حاتمی پور

Early diagnosis and appropriate treatment of candidiasis in the infant’s mouthand nipple of breastfeeding mothers can have positive effects on the infant’s nutrition from the mother’smilk. Therefore, the aim of this study was to investigate the prevalence of Candida albicans fungal coloniesin the infant’s oral cavities and nipples of breastfeeding mothers.

This cross-sectional study was performed on 98 breastfeeding mothers and theirhealthy infants. Samples were taken from the posterior area of the infant’s tongue and the nipple of thebreastfeeding mothers. Samples were transferred to a dextrose agar medium containing 0.05% chloramphenicolin the laboratory and were kept at 30 ° C for 48 hours and then the number of Candidacolonies was counted and recorded. The data were analyzed by SPSS 17 statistical software and t-testand Pearson correlation coefficient.

The mean number of cultured colonies from infants’ mouths and nipples of breastfeeding motherswas 64.44±42.99 and 102.62±63.56, respectively. In neonates born by cesarean section and nippleof their mothers, there were significantly more Candida colonies (P<0.05). There was a positive and significantcorrelation between the number of cultured colonies from the nipple of breastfeeding mothersand the infant’s mouth (P=0.000, r=0.796)

Candida culture was positive in more than half of the samples both in the mouth of the infantand in their mothers’ nipples.

residual cyst is an odontogenic cyst that develops after a tooth with a radicular cyst is extracted so that all or part of the cyst remain in place.  These cysts are known as asymptomatic inflammatory odontogenic cysts and form approximately 10% of odontogenic cysts.

Case Report: 

a 30 years old man patient, referred to the department of oral medicine of Yazd dental university for evaluation of radiolucent lesion seen in panoramic radiography.  Large oval shape unilacular radiolucency with well-circumscribed and corticated borders was seen that extended from the distal of left central tooth to the apex of second premolar on the same side.the canine tooth also appeared to be in sinus space.

According to the present study, basically, residual cystic should be considered in differential diagnosis of unilacular radiolucency in edentulous area.

According to hazardous infection possibility in patients with a weakened immune system, old adults, and children, microbial contamination in the waterlines of dental units has become a recent concern. The aim of the present study was to evaluate the microbial contamination in dental unit waterlines in the School of Dentistry, Qom University of Medical Sciences, Qom, Iran.

This descriptive-analytical study investigated 94 water samples collected from three parts of each unit, including air/water syringe, turbine headpiece, and cup filler, in the School of Dentistry in 2019. The water samples were taken on Saturday and Wednesday before and 60 sec after flushing on the same unit. The samples were transported in closed sterile containers to the Microbiology Laboratory. All the samples were incubated on nutrient agar plates using the Spread plate technique. Subsequently, bacterial contaminations were counted and reported based on CFU/ml for every plate. The data were analyzed using the Kruskal-Wallis test and Wilcoxon signed-rank test by SPSS software version 25.

The total mean of the bacterial counts was reported as 16,457 CFU/ml. The pre-clinic and periodontics were reported with the highest and lowest bacterial counts, respectively. The mean of bacterial counts after flushing was significantly lower than that reported before flushing on the same unit (P<0.001). The mean bacterial contamination of different parts of the dental units was similar (P=0.145). There was no statistically significant difference between the mean bacterial counts of Saturday and Wednesday (P=0.074).

The obtained results of this study demonstrated that the biological contamination level of dental unit waterlines is high, and flushing can result in a partial decrease in this regard.