Interesting yet simple article publish at Oprah Magazine about how to choose the right toothbrush   Photo: HerminUtomo/iStock/Thinkstock   You use it every day, but when was the last timeyou put real thought into your toothbrush? An effective tool is essential for a proper brushing, which not only shines up your pearly whites, but also prevents bacteria and inflammation—both of which are linked to everything from heart disease to dementia. We asked the experts for a brushup on what features matter most.  Shape  Should you opt for an electric brush with a round, rotating head or a traditional rectangular manual brush? Many dentists believe they're both effective if you're using the right technique, but a review by the healthcare nonprofit the Cochrane Collaboration found that over a three-month period, round, rotating heads (which resemble the type used during professional cleanings) removed 11 percent more plaque than manual brushes. If you go the manual route,