Brief Answer:
she needs thorough check-up and a few investigations to clarify further..

Detailed Answer:
Hello XXXXXXX Welcome to HCM,
I've gone through your query and understand your concern for your daughter..

Yes, there can be a few possibilities behind this which needs to be evaluated in details, I'm listing them below based on the severity and prevalence observed in this age group of children..

. First of all, do check her buccal cavity thoroughly for any underlying plaques/ teething (new teeth eruption)..you can do it yourself only but can take additional help of any dentist nearby..

. a Worm manifestation, mostly tapeworm/thread worm, needs a stool routine microscopy examination along with CBC and peripheral blood smear, if detected, then single stat course of anti-helminthic therapy (eg. Albendazole) can be done..

. any underlying stress at the nursery/pre-school, problems facing in coping up there must be evaluated in details by the Pediatrician and if any such suspicion arose then a further consultation should be made with a child psychologist without any further delay (this last part is extremely important to immediately intervene in the delicate mind and psychology of the kid)..

. any fearful object which may be bothering her in her subconscious mind thus making her to act like that during sleep (Once again should be ideally checked up by the pediatrician/ child psychologist to immediately intervene in the delicate mind and psychology of the kid)..

. Another entity of habitual teeth grinding is there but that's much less severe/significant and can be easily treated by behavioral therapies only..

Let me know if there's any further queries..

Take Care
Kind Regards

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