PRINCETON, New Jersey--Church & Dwight has voluntarily recalled Spinbrush Rechargeable SONIC toothbrushes because the charging base may overheat with localized melting and sparking, possibly causing fire, shock or burns. The risk of these malfunctions appears to increase with the age of the product. To date, Church & Dwight has received six consumer reports of overheating in the U.S. and one consumer report in Canada. There have been no reported injuries to date.Related information, click here.The recall is limited to select lots of Spinbrush Rechargeable SONIC toothbrushes. Product with a lot number from one of the following ranges is affected by this recall: DD9310 to 9365 or DD0002 to 0122. The lot number can be found on the bottom of the charging base and on the packaging. Products with lot numbers outside of these ranges are not at risk and are not subject to the recall.The Spinbrush battery-powered or Spinbrush SONIC battery-operated toothbrushes do not have a charging base with an electric cord and plug and are not subject to the recall.The indicated lots were distributed between February 2010 and October 2011 in all U.S. states and in Canada.Consumers who have the affected units should stop using them and return them to Church & Dwight for a full refund. Consumers should call (888) 709-4100 from 9 a.m. to 5 p.m. (Eastern time) Monday through Friday. An automated service is available 24 hours a day or visit online at www.sonicrechargereturn.com for further information and to determine if product is subject to the recall.The Food and Drug Administration has been notified of the recall.For more information, visit www.churchdwight.com/.To comment on this topic, go to community.pennwelldentalgroup.com/.