A beautiful, bright smile can give you the boost of confidence you need to look and feel your very best. If you have a major event coming up like a wedding, job interview, family reunion, or some other celebratory occasion, you could be planning to whiten your teeth in preparation. After all, you know there will be many photos taken and don’t want to waste time or energy worrying about imperfections. Many people wonder, however, how long the effects of whitening can last and how far in advance to get started for the best results. If this sounds like you, keep reading to learn more so that you can develop an appropriate timeline before your big day!