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H. Kermanshah, S. Hashemi Kamangar, S. Arami, A. Mirsalehian, M. Kamalinejad, M. Karimi, F. Jabalamoli,
Volume 22, Issue 2 (20 2009)
Abstract

Background and Aim: The microbial cause of dental caries has been proved among its multifactorial etiologies. The prevention and control of dental caries is very critical because of high prevalence and cost especially in high risk patient such as xerostomia. Based on the world attraction to traditional treatment and importance of drug extraction of natural materials and plants, in this in vitro study effect of hydroalcoholic extract of Salvia officinalis and Pimpinella anisum which were very useful in traditional treatment of mouth and teeth disease has been determined against cariogenic bacteria.

Materials and Methods: In this experimental study, hydroalcoholic extracts have been prepared from Salvia officinalis and Pimpinella anisum with maceration method. Their antibacterial activity against Streptococcus mutans, Lactobacillus rhamnosus and Actinomyces viscosus have been evaluated with broth macrodilution method. Data were analyzed with Mann-Whitney test.

Results: Minimum Inhibitory Concentration for Salvia officinalis and Pimpinella anisum for streptococcus mutans were respectively 6.25 and 12.5 µg/ml, for Lactobacillus rhamnosus were 1.56 and 12.5 µg/ml and for Actinomyces viscosus were 12.5 and 50 µg/ml.

Conclusion:Both extracts had growth inhibitory effect on all three bacteria. Salvia officinalis had significantly greater effect on inhibition of growth of all three bacteria. Both extracts had bactericidal effect in the range of concentration.


Faramarz Zakavi, Hengameh Alinejad, Zahra Jowkar,
Volume 28, Issue 1 (5-2015)
Abstract

  Background and Aims: Marginal fit is one of the key factors in the success of fixed restoration. The aim of this study was to evaluate the fitness of feldespatic crowns made from additional silicon impression and gypsum cast by CAD/CAM.

  Materials and Methods: 10 intact extracted upper premolar teeth were used for this experimental study. After preparation of the mounted teeth with radial shoulder finish line, 2 Vita Mark II feldespatic CAD/CAM machined crowns were fabricated for each tooth (one from scanning the additional silicone impression of the prepared tooth and the other one from the plaster model). Marginal gap of each crown was measured using SEM in two points on the mesial and 2 points on the buccal surface. Data were analyzed using Paired t-test with SPSS version 17 software (P<0.05).

  Results: The mean of marginal gaps in crowns fabricated from additional silicone and model plaster were (155.13±37.11) and (130.18±12.35), respectively. However, no significant difference emerged between marginal gaps of the two methods (P=0.055). Also, the mean of marginal gaps in crowns fabricated from additional silicone and model plaster was higher in mesial (157.82±44.41) compared to buccal (127.50±24.26) region (P=0.003).

  Conclusion: Marginal fit was not significantly differen ce between crown s made of the plaster casts and silicone molds and both methods showed the same results .


Roshanak I Montazeri Hedesh, Ghazaleh Baniebrahimi, Roza Haghgoo, Kosar Alinejad,
Volume 34, Issue 0 (5-2021)
Abstract

Background and Aims: Promoting children's oral health is the basis for increasing the level of community health and the goal of pediatric dentistry. By recognizing all the factors affecting the health and formation of the child's health habits, a fundamental step can be taken to promote oral health. The aim of this study was to evaluate the effect of parenting styles and demographic characteristic on OHI-S (Simplified Oral Health Index) in 2018.
Materials and Methods: In this cross-sectional study, 244 children aged 6-12 years in Behbahan-Iran with their parents were studied. The demographic questionnaire (variables such as parents 'age, economic status, gender, occupation and parents' education were recorded) and Bumrind questionnaire were used. The oral health status of children was assessed to determine the simplified oral hygiene index. Then, the obtained data were analyzed using SPSS 25 software and regression and Pearson correlation test.
Results:  The results showed that the children of parents who used the permissive method had higher score of simplified oral hygiene index (P<0.001) and simplified calculus index (P<0.001). However, in children of parents who used the authoritative parenting style, a decreased simplified oral hygiene index (P<0.001) and simplified debris Index (P<0.001) were observed. However, the method of authoritarian parenting style did not have a significant relationship with the simplified oral hygiene index (P=0.890), simplified calculus index (P=0.404), and simplified debris Index (P=0.721).
Conclusion: Powerful authoritarin and authoritative parenting practices have a clear impact on the oral health status of children. Therefore, parenting paratices can be considered as one of the main factors affecting the oral health of children.


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