Will wearing this Invisalign aligner longer fix this incisal gap? (Photo)

Gaps in aligners are important because when the occur, the teeth will no longer be gripped by the aligner and will stop moving. You can try chewing on "Chewies" which look like small cotton rolls made of firm rubber. The Chewie will force the aligner onto the teeth which will grip the teeth and pull them down. If they still do not fit after a week to ten days, best to make a new set of aligners.