الفهرس 
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Abstract
Thirty completely edentulous patients (Twenty of them male and ten female), with no previous denture experience, participated in this study. The patients were divided into two equal groups:
• Group (I): non-smokers.
• Group (II): smokers.
For every patient, upper and lower conventional heat cured acrylic dentures were constructed.
Before denture insertion the palatal mucosa of all patients was sampled using the impression culture technique, to detect the presence of Candida albicans. Also, one month, three months and six months after denture adaptation,
It was noticed that In this impression culture technique which was used, the mycological medium (Sabouraud´s dextrose agar) is had a direct contact with Candida albicans resting on the impression surface of the palatal mucosa.
The agar models were cultured at 37˚C for 48 hours after which the resulting colonies were counted and Candida albicans was identified.
Each time the palatal mucosa were sampled, the clinical appearance of it was visually inspected for any sings of inflammation or ulceration. The data obtained were statistically analyzed using Spss version 17 Software.
The results obtained from this study deduced that Smoking affect significantly Candida albicans colonization.
from the current study, we concluded that:
1. Smoking affect significantly the mean count at different time interval (1, 3 and 6 months) while the non-smoker was observed to show significant increase lately at 3 and 6 months.
2. Confluent growth was not observed among non-smokers while it appears in about 7% of the smoker groups.
3. Colony forming unit count was observed to be affected by neither smoking nor sex of the studied patients.
4. Moderate and severe inflammatory grades of palatal mucosa was noticed among smokers compared to mild grade only seen in one case of non-smokers after 6 months of insertion.