Smilewatch(Baby/Kid) iOS App will alert any late/early sprout/loss in children's teeth. Parents have to log any sprout/loss as soon as they can.
The app tracks the events against a schedule dentists follow as a typical guideline and alerts any issues in timeliness. Though it is not a strict schedule for every children, an early consultation to make sure of normalcy is better.
For parents without iOS devices, Smilewatch is available in offline versions i.e. paper charts and excel sheets. Offline tools can be downloaded for free from www.smilewatch.net.