A group of kids hide in a cave from a creature that looks like a Tyrannosaurus Rex, the next morning they think it was a dream but they find a tooth outside

[celebes.warty.pig]

Release date 1980-2000.
Genre: Adventure.
Country of origin: Unknown, mostly Caucasian actors and it was dubbed.

The kids are maybe 12-14 years old, they go hiking in a forest, where they later encounter the creature.
They spend the night in a cave-like structure and they find the tooth the next morning, when they come out.
The movie might end on a beach.
Time travel might be a part of the plot.
Dinosaurs were not the main theme of movie.

It’s not:

Carnosaur (1993)
Carnosaur 2 (1995)
Cavegirl (1985)
Dinosaur Island (1994)
Magic Island (1995)
Rawhead Rex (1986)
Tammy and the T-Rex (1994)
The last dinosaur (1977)

[casspir]

UPDATE: This must be the one, I scanned through the movie on YouTube and found the scene where the kids find the dinosaur tooth (see the screencaps below).

I have not seen this, maybe this one?:
“Simon les nuages” (1990), also known as “Simon and the Dreamhunters”

Simon les nuages (1990) ⭐ 6.5 | Adventure, Family, Fantasy

The full movie can be watched on YouTube here:

Simon les nuages (Simon and the Dreamhunters) - 1990

UPDATE:
Here is the dinosaur with a loosened tooth:

And here is that loosened dinosaur tooth that ultimately fell out onto the ground: