Britney Spears has parental skills of a rock. (A dumb rock.)

We all can clearly see that Britney Spears isn't the most stable person or the brightest bulb around. But reports of her trying to get her son's teeth whitened take the cake....
US:
Britney Spears has publicly battled with her mother and ex-husband Kevin Federline (their divorce became final on July 30), but the latest crisis in the singer’s life involves her children, Sean Preston, 22 months, and Jayden, 11 months.
Sources tell Us Weekly that Spears’ friends and family have become concerned about the pop star’s mothering skills.
Case in point: The tooth fairy may be making early visits to 22-month-old Sean. “He’s having dental problems because Britney just shoves a bottle of juice in his mouth all the time to stop him from crying,” a family insider tells Us.
Another source says that, in April, Spears “asked an L.A. dentist if he would whiten her kid’s teeth!” The dentist refused.
Those close to the singer aren’t surprised that Spears’ lifestyle is wreaking havoc on her children’s teeth.
A Spears pal says the star “feeds them total crap like Doritos and soda,” and a source who has spent a great deal of time with Spears around the children says Sean’s mom has given him chewing gum, a known choking hazard for toddlers.
And when it comes to bedtime, forget soothing lullabies. "She fed Sean ice cream before bed because the cold would make him sleepy,” says the source who logged time in the singer’s home.
For more on Sean and Jayden’s chaotic home life, check out the new issue of Us Weekly, on newsstands this week.