Gestalt psychology is a school of thought that believes all objects and scenes can be observed in their simplest forms.Sometimes referred to as the 'Law of Simplicity,' the theory proposes that the whole of an object or scene is more important than its individual parts.estalt psychology is a school of thought that believes all objects and scenes can be observed in their simplest forms.
Acidic Fruits. Acidic fruits like oranges and lemons also help to whiten teeth over time. Orange peels can be used to buff your teeth or be combined into a paste for your teeth. Lemon juice also has a whitening effect on teeth, but it deteriorates your enamel. .
Mix the baking soda with hydrogen peroxide. Hydrogen peroxide is another great household product that can be used to effectively whiten teeth. Simply mix half a teaspoon of hydrogen peroxide with a teaspoon of baking soda into a paste that resembles the consistency of toothpaste.