Thanks for your message. You are correct that the priority for a 7 year old without permanent molars yet is xylitol in adequate amounts. In Scandinavia they start xylitol in Preschool – ensuring the kids’ mouths are ready for the eruption of new molars. 7 is quite late for these molars that often erupt during Kindergarten ages.
The first bacteria to get into the biting surface grooves of molars – become the dominant bacteria of the mouth. Ensuring that the mouth bacteria are healthy BEFORE the eruption of molars is the best way to achieve this ( and it usually takes 6 months of 5-10 grams per day to make the oral bacteria truly healthy).
Fluoride comes into play when we need to stimulate the formation of the Pellicle layer over new molar teeth. It usually takes about a year for Pellicle to form, but in conjunction with ACT dilute fluoride, xylitol and good diet – you can often get this protective layer to form in less than half that time.
Remember that cheeses and organic dairy are perfect endings to meals and make great snacks for teeth.
Limit juices and anything acidic to during a meal – and end the meal with a tooth-protective food or xylitol.
When anyone mentions bad breath – I suggest looking for some kind of bacterial transfer – xylitol will be very helpful. Check toothbrushes are clean every day – that they dry completely between uses, and are stored at least 10 feet from any toilet area.
Hope this helps,
More information can be found on this topic and more at: www.drellie.com