My 6 year old (I foster her) has soft decay and had 10 teeth removed and 1 crown placed when she was 4. We use this to explain how important brushing teeth is.
When my kids were a bit younger I always made sure to brush my own teeth in front of them so they could see it’s a normal thing to do and copy me.
I also had a special song I sang whilst brushing teeth. I do that still with my youngest (she’s 3 and has Down Syndrome). First I brush my teeth in front of her. Then she can brush my teeth. Then I brush her teeth whilst I sing the song and after that she can brush her own teeth. I nice tooth brush certainly can help by younger kids and you could consider an electrical toothbrush.
Last Xmas I gave a digital timer to my kids for brushing teeth. They use it all the time and find it rather interesting.

Tell them if they have teeth decay , their teeth may rot and you may not have any teeth in the future to brush .

An old fashioned 2 minute egg timer has worked for my children as far as the length of time they brush for, and a trip to the dentist to reinforce how important proper brushing is helps too.

Get them to choose the toothbrush as an encouragement. if they are young a star chart could work well here.

have a timer set for two mins and make it fun. best brushing wins! best booty shaker wins lol

Simple for mine I tell them if they wont brush their teeth then it’s more likey they will have to get fillings from the dentist…..it actually works for me!

When my boys were younger I just showed them a couple of pictures of bad teeth and explained that this would happen if they didn’t brush everyday

As an ex dental nurse the best way to show the kids if they are cleaning properly is by using a disclosing solution that will show up any plague not removed after the 1st brush. Start a reward system for them when they are brushing well. An electric toothbrush does a better job for the younger kids too.

A cool toothbrush, rewards and routine.

I put a wiggles song on and tell the kids to brush there teeth till the song is finished (try not to make it a song that goes for to long). We tell the kids when thy have finished the have got wiggly clean teeth.

My kids still complain but I found letting them choose their own toothbrushes helped. Also, letting them choose their own toothpaste.. It sounds silly but my kids are much happier when they have their ‘Dora’ or ‘ Diego’ brushes.

Show them pics on the Internet of what can happen if they don’t, lol. (If they are school aged).

The youngest is 7 so the character brushes will not work.

I turn it into a game and always do it with them as they love to copy Mum.

maybe a timer, fun toothbrushes, kids toothpaste, or electric brush? make a game out of it

I found a tooth chart online which the kids were happy to do for awhile but I think getting them battery operated toothbrush worked the best. But let them choose the design/character as that will make them happier to use it.

My neice has a character toothbrush with a timer

I get them to brush their teeth then I do it afterwards. Mine are only little though 3 & 4.

i have had an app on my phone that makes a game out of it & it sings while the brush so they brush for the full 2 mins. ( I can’t remeber the nemae of it)

Character toothbrushes worked for me! One child who was particularly against it picked out a fancy character brush that lit up and played music and he knew he had to keep brushing till the song stopped! There are some cool things out there