Disadvantages of In-Office Whitening. 1  In-office bleaching is more expensive than take-home alternatives. 2  Its cost, on average, is $650, compared to $400 for take-home trays and under $100 for over-the-counter bleaching trays or whitening strips.
Planetary protection is a guiding principle in the design of an interplanetary mission, aiming to prevent biological contamination of both the target celestial body and the Earth in the case of sample-return missions.
Consumer protection is a group of laws and organizations designed to ensure the rights of consumers as well as fair trade, competition and accurate information in the marketplace.The laws are designed to prevent businesses that engage in fraud or specified unfair practices from gaining an advantage over competitors.onsumer protection laws are a form of government regulation, which aim to protect the rights of consumers. For example, a government may require businesses to disclose detailed information about productsâparticularly in areas where safety or public health is an issue, such as food.