I'm having trouble finding out what 'squint' means in a dental situation but if it's coming in crooked, you need to see an orthodontist now.
(Adult teeth coming in front or behind baby teeth (baby tooth didn't fall out) they call shark teeth and the baby tooth needs to be pulled - if the adult tooth doesn't come up directly below the baby tooth, the baby tooth roots don't dissolve, the baby tooth doesn't loosen, wiggle or fall out).
I had/have very small jaws and my teeth were too big to fit.
Back in the day (in the 70s') - this was before there were expanders - the procedure was to pull adult teeth that didn't fit and arrange the remaining teeth so they lined up.
I had 8 adult teeth pulled (bicuspids and wisdom) and I spent 7 miserable years in braces - grades 5 through 11.
I thought I'd NEVER get all that metal out of my mouth - my cheeks still have scars on the insides and I'm 55 now.
I wouldn't wish that on my worst enemy.
Our son had a whole heap of teeth coming in at once - his first panoramic xray looked like a DC beltway traffic jam.
He spent some time in expanders for 6 months and then did braces for 2 years and was finished up before 6th grade finished.
His teeth are all strong, straight and beautiful - although his wisdom teeth are at right angles, impacted and still have to come out - this is very common.
The expanders work best when their pallet (roof of their mouth) is still soft and hasn't calcified yet - they shape the growth of the upper and lower jaws and it's MUCH less painful than trying to move the teeth around through developed bone - so the time to do this is when they are young.
Get it done now and your child will have a much shorter time in braces - it'll be less painful and less expensive in the long run.