I honestly don’t know the first thing about dental school, but I don’t think there is any way you can omit your grades from your (former) dental school.
Is there any possibility you can petition your former dental school to take you back? The family issues, plus the pandemic, are significant reasons for a lot of students’ downturns. Schools can be very forgiving if they see that a student has a desire to be there. Even failing the remediation course is perhaps surmountable.
I don’t know your particular circumstances, but I would try very hard to sort things out with your old school if there was even a glimmer of a chance.
Again, take it FWIW. Good luck.