During preventive examination a 5-year-old child was found to have insufficient physiological attrition of cusps of the deciduous canines. What treatment tactics should a doctor choose?

Answer options

1. No medical intervention is necessary
2. To file down the retained canine cusps
3. Medical examination every 6 months until the canines are replaced
4. Medical examination every 6 months until the incisors are replaced
5. Medical examination once a month until the incisors are replaced