1 Professionally dispensed kits from a dentist's office designed to be used at home typically cost $100-$500, depending on the location and dentist. 2  Take-home whitening kits include custom-made trays and typically use a stronger bleaching agent than over-the-counter systems.
... NewsGroupQuestion wrote: How long is a UK cheque 'valid' i.e. how long can a person keep a cheque before presenting it to their bank and still have it honoured? Conventionally, six months.Some cheques have earlier expiries explicitly written on them.ow long is a UK Cheque 'valid'? I hope this is the right group to ask this question..... How long is a UK cheque 'valid' i.e. how long can a person keep a cheque. before presenting it to their bank and still have it honoured?
An out-of-state personal check might be held for three or four days, while a check issued by the U.S. Treasury might have no hold at all. In some cases, depending on how large the check is, and who issued it, the hold can be as long as five to 10 business days. For banks, the hold is a way of limiting risk. The bank is paying money to you, and acting in good faith on the assumption that there is money in the account the check is drawn on.