Hello there, Welcome to HCM, Increasing gaps in between the teeth is an indicative of periodontal inflammation that is the attachment apparatus of the tooth . It is caused due poor oral hygiene ,improper brushing and flossing that leads to accumulation of bacterial plaque and calculus deep in the gum pockets and root surfaces of the teeth. These deposits leads to gum recession and loosing of the teeth from the bone socket. Chronic condition leads to resorbtion of the bone and seperation of the teeth leading to formation of gaps. i would suggest you to get an opg radiograph done which helps in evualation of the underlying bone support and accordingly treatment can be planned. i hope this helps, take care.