A. Thanks for your questions, there are many teeth straightening options available today, each with their own benfits, from systems that can acheive results in as little as six weeks, to systems which are virtually invisible. As with all Orthodontic treatments, you should wear a retainer on the completion of the treatment to avoid rebound. This can be a removable or fixed retainer, but is essential. The costs for each system will vary between practices, but to give you an idea, out teeth straighening currently starts from £999.Kindest RegardsDr Kailesh Solanki