ABSTRACT
Objectives: Compare the effect of Babul and Alum on salivary flow, and saliva micro-organisms
Materials: Ninety volunteers, 20-25 years of age, were recruited. They were divided into 3 groups. Mouthwashes used: 25% aqueous Babul solution, 6.2% aqueous Alum solution, or distilled water. Unstimulated and stimulated saliva were collected for five minutes. The first change to visit one sample was a base line then after one week [visit 2]. Each subject was given 15 ml of randomized assigned mouthwash to rinse for one minute daily, then measurements were done after 2 and 4 weeks [visit 3,4]. Count of Streptococcus mutans and Lactobacilli were performed
Results: Results showed that unstimulated saliva in visit one had significantly higher mean values than visit 3 and visit 4 [p<0.05]. However, mean stimulated saliva in visit 2 was significantly lower than visit 3 and visit 4 [p<0.05]. There was an observable difference in the count of Streptococcus mutans. The number of cases with high count was reduced in final assessment to zero, while subjects with low count increased similarly relative to one use of Babul mouthwash. Although there were no significant differences among count of Lactobacillus, both mouthwashes showed a progressive decrease in the subjects with high bacterial count of Lactobacillus
Conclusions: Babul and Alum reduced salivary flow rate after the repeated use, which could be used in moisture control for dental procedures. Both mouthwashes had antibacterial effect against Streptocuccus mutans and Lactobacilli indicating the promising use of these natural substances as antibacterial compounds
ABSTRACT
Statement of problem. The durability of a restoration is largely based on maintenance of the tooth/restoration interface which may lead to marginal integrity breakdown, microleakage, and staining and secondary caries
Purpose: The purpose of this study was to determine if fluorinated dental bonding resins will reduce composite resin marginal microleakage
Materials and Methods: Light-cure filled and unfilled bonding resins were prepared from a basis resin of 45% bis-EMA, 40% TEGDMA, and 15% HEMA. Fluorinated TEGDMA, 0-30 wt% was substituted for some TEGDMA. Class V restorations were made in 50 extracted human molar teeth, 3 mm length X 2 mm width X 1.5 mm depth centered on the cement-enamel junction using 8 experimental formulations and 2 commercial bonding resins [n = 5] following a standard clinical protocol. The teeth were thermocycled 1500 times between 5 [degree sign] C and 55 [degree sign] C with 1-minute dwell times. Teeth were removed, dried, varnished, and placed in 50% silver nitrate solution at 37[degree sign] C for 24 hours in total darkness. The teeth were rinsed and sectioned through the restorations with a diamond saw yielding haves. For each half, dye penetration was assessed under 80-power stereoscopic microscope and measured in mm from margin to axial wall for occlusal and cervical margins
Result: The data was analyzed statistically [p<0.05] using ANOVA. At the occlusal margins, commercial and non fluorinated bonding resins leaked significantly less [p<0.05] than the fluorinated composite resins. At the cervical margins, commercial bonding resins leaked significantly less [p<0.05] than experimental bonding resins
Conclusion: Fluorinated TEGDMA did not reduce microleakage of composite resins