Which mouthwash is best at killing germs ?


Which mouthwash kills germs at killing oral bacteria ?
          

Image result for mouthwashImage result for mouthwash



Chemistry Research: A common ingredient in mouthwash is Thymole. this ingredient has the potential to give of H+ atoms when there is a base. In the case of mouthwash the base is in water. the solubility of the Thymole helps to kill the bacteria that live sin our mouths. These mouthwashes contain ingredients that need ethanol to dissolve and actually kill the bacteria in our mouths, without these concentrations the breath freshening and germs killing would not take place. So to find out which one works the best i tested both mouthwashes to see how my mouth feels after each use.


Image result for mouthwash chemical formula Thymol is a natural monoterpenoid phenol derivative of cymene, C₁₀H₁₄O, isomeric with carvacrol, found in oil of thyme, and extracted from Thymus vulgaris and various other kinds of plants as a white crystalline substance of a pleasant aromatic odor and strong antiseptic properties. Thymol  is a component of thyme oil with antibacterial and antifungal properties, which is why it's often found in mouthwash to fight tooth decay and eliminate bad breath.


Image result for methyl salicylate chemical formulaAnother ingredient in mouthwash is Methyl salicylate, Methyl Salicylate is an organic compound with the formula C₆H₄. It is the methyl ester of salicylic acid. It is a colorless, viscous liquid with a sweet odor. It is produced by many species of plants, particularly wintergreen.



 Image result for eucalyptol The last ingredient is Eucalyptol which is a natural organic compound which is a colorless liquid, Eucalyptol is an ingredient in many brands of mouthwash and cough suppressant. It controls airway mucus hypersecretion and asthma.



Personal And Environmental Safety 

  • Thymol doesn't have any safety concerns other then the fact that it  has led to primary skin irritation and skin sensitisation but only in rare cases.

  •  Methyl Salicylate is a personal safety issue when someone swallows a dangerous amount of a product containing this substance which is called an Methyl Salicylate overdose.

  • Eucalyptol is only toxic if ingested at higher than normal doses.



Experimental Procedure

Step 1: Eat food ( It can be any type of food ) 

Step 2: Do your regular teeth brushing routine.

Step 3: Do step 1 and 2 twice the first time with Listerine and the second time with Colgate.


Results: When i used the Listerine mouthwash i could still taste my meal in my mouth and it didn't feel as fresh as the bottle says it will make your mouth but when i used Colgate i felt more fresh and i could actually taste the peppermint taste.


Proposed Improvement: One way Listerine can improve in their product is using more thymol to improve the fresh peppermint taste that the advertise.


Youtube link below


https://youtu.be/DdXBSK0bwI4













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