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. .
There are also food types that should be avoided after teeth whitening to prevent sensitivity and pain. The bleaching agents used in whitening treatments weaken tooth enamel in the short term. Oranges, lemons, limes, pickles, soft drinks, etc. can increase the acidity of your saliva which in turn can harm your teeth.nfortunately, coffee is one of the most common causes of tooth staining, and may even be the reason you need to get your teeth whitened in the first place. At the very least, dentists recommend waiting 48 hours after whitening before consuming dark foods or liquids. If you simply can't resist, use a straw.