Tooth decay (cavities) occurs when:
Your body can repair early damage using saliva (rich in calcium and phosphate), but this system is overwhelmed by:
Lack of remineralization support (mineral toothpaste can help replenish minerals)
Electric toothbrushes show moderate improvements, mainly because they:
They work better mostly because people do not brush well manually.
If technique is perfect, manual brushing can match results — but most people are inconsistent.
Hydroxyapatite is the same mineral your teeth are made of.
Benefits:
Clinical findings: