Essay in Chicago Technology Fair Final Draft

Herbal VS Chemical Elements in Tooth paste

Microbiology

Experimental Investigation

________________________________________

Signature of Sponsoring Instructor

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Personal of School Science Fair Coordinator

Wentao Hao

2501 W. Addison

Side of the road Technical University Prep

Chicago, IL 60618

Grade twelve

Table of Contents

Acknowledgements……………………………………………………………. 3 Purpose…………………………………………………………………………4 Hypothesis……………………………………………………………………... four Review of Literature……………………………………………………………5 Procedure and Materials……………………………. ………………………. …. 15 Data…………………………………………………………………………….. doze Results………………………………………………………………………….. twenty three

Conclusion…………………………………………………………………….... twenty-four

Reference List…………………………………………………………………... 25

Acknowledgements

I would like to thank Doctor Wu pertaining to letting me personally use her lab in order to conduct this experiment, also to help me with my newspaper. She spent her holiday time during the summer to I would love to give thanks to my dad, Jianjun Hao, to get helping me with my Review of Literature. My appreciations also venture out to Indicate White, as he helped me through the actual testing in the laboratory. Another person I would really prefer to appreciate is my mom, Lihong Lin, who helped me by getting materials to help make the board and the presentation.

Goal

The purpose of this experiment is usually to investigate the effect of different toothpastes containing several ingredients about growth of the oral bacterium Streptococcus mutans. This is important since Streptococcus mutans is what causes the common holds infection, or maybe a cavity. Hypothesis

If the band of inhibition is finest with the Aloe vera, then the herb A. vera is the best, as being a smaller area of inhibition means that you will have a lesser regarding bacteria when that herb is used in the actual experimentation. This comes from a previous research by Julia F. Morton (1961), which will says that ‘In S. africa natives break up the leaves of the Aloe vera saponaria Haw. and place the fleshy surface upon wounds'. Therefore the natives believed the leaves with the A. vera and it's variants have anti-bacterial effects. This may lead to the conclusion a. vera must have antibacterial results, as many from the herbal remedies employed by ancient people often have antibacterial and therapeutic effects. Therefore , it can be fair to imagine the Aloe vera family has its own form of antibacterial effect.

Review of Literature

Immeasureable people comb their teeth every single day, but amidst a sea of different toothpastes, has anyone ever wondered which one was more effective? The number of toothpastes out there is incredible, and many of these claim various things. Many have many categories, including anti-bacterial, or perhaps anti-bad inhale. The general point that differs in toothpastes is the active component. The active ingredients vary considerably, and the tooth paste can include various other ingredients, but the active ingredients will be what matter. This test is about the comparison of chemical and natural toothpastes. When people look at the back side of the toothpaste, and find the active ingredients list, what is frequently found sodium fluoride. This is certainly one of the ingredients that can find for the label intended for chemical toothpaste. When all of these many what are used in toothpastes will be taken into consideration, it could completely change the growth level of bacterias. This try things out is trying to determine whether plant based or chemical substance toothpastes are more effective in reducing the growth of bacteria. The 2 active ingredients in the chemical toothpaste that is used are sodium fluoride and triclosan. Sodium Fluoride-based

Sodium fluoride is a combination of the factors sodium and fluoride, bonded with ionic bonds. This kind of forms a great octahedral position that forms a cubic shape. Sodium fluoride can be used in many industries, but it is usually used for many biological weaponry such as Sarin Nerve Gas. The problem is that sodium fluoride-based is a side product of the aluminium production procedure, so it a fairly easy...

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