Vodafone will also unlock its handsets, though at a potentially higher cost. You can generally get a free unlock if you're on contract-or if you purchased your phone more than 12 months ago. Otherwise it will cost around Â£20. Sometimes the network will unlock your phone in just one day, but it can take up to two weeks.EE is a little bit stricter with its unlocking terms.therwise it will cost around Â£20. Sometimes the network will unlock your phone in just one day, but it can take up to two weeks. EE is a little bit stricter with its unlocking terms.
1 Whitening Strips â These resemble clear adhesive bandages that are stuck onto the teeth and left there usually for 30 minutes at a time, twice a day for a week or two. 2  Brush-On Whitening â These gels are painted directly onto the teeth with a small brush and sometimes left overnight.
The best whitening systems feature a buffer in the gel that protects the tooth enamel from damage, are extremely effective,and can transform teeth in a single office visit. Your teeth can literally brighten up to 10 shades in about an hour. In-office whitening affects only the front eight teeth and is a great jump start for take-home whitening, which is always part of an effective whitening program. Your dentist is best qualified to handle any issues that may arise from whitening treatments, such as tooth sensitivity.