Can I get my minor gaps filled by continuing the retainer therapy?

i used to take my retainers off while leaving for college and wear them again after returning in a day those 9hrs i dint wear my braces.this continued for 3 to 4 months.but now that iev notice there is a minor gap between my teeths.and now its been 10 months since iev taken off my brace.will my minor gaps get filled? if not what should i do?should i go for permanent retainers?

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