Your tooth's cannot be in big it looks so because of improper alignment it looks big all you need to do is consult a orthodontist and put on braces to get them in shape after which tooth will not look bigger or smaller in shape.
Hi. According to your age you have to go for a fixed Orthodontic treatment. It can take around 1-2 years depending upon your malocclusion. Metal and invisible braces are available. You can choose among them according to your budget and choice.