Provided is an electrically driven toothbrush which has a handle formed thin and slim to improve the operability and design and which is configured in such a manner that an induction coil is assembled in an inner member which protrudes to the outside from an outer case, thereby enabling the electrically driven toothbrush to be charged without contact.A handle (2) serving as a grip is provided with: a metallic cylindrical outer case (4) having a first end (4a) and a second end (4b)； an inner member (5) having a small end (5a) which is inserted through the first end (4a) and also having a large end (5b) which is engaged with the second end (4b), the inner member (5) being installed within the outer case (4) by being inserted with the small end (5a) first into the outer case (4) from the second end (4b) side thereof； a restriction member (7) fitted over and affixed to the small end (5a), which protrudes to the outside from the first end (4a), by means of a joining structure (6), the restriction member (7) engaging with the first end (4a) of the outer case (4) and preventing, in cooperation with the large end (5b), the outer case (4) from separating from the inner member (5)； and a vibration generation means (9) assembled in the inner member (5) in order to vibrate a replaceable brush (3).L'invention concerne une brosse à dents à entraînement électrique, qui comporte un manche de forme mince et élancée pour améliorer l'opérabilité et la conception, et qui est configuré de telle sorte qu'une bobine d'induction est assemblée dans un élément interne qui fait saillie vers l'extérieur d'un boîtier externe, ce qui permet à la brosse à dents à entraînement électrique d'être chargée sans contact. Un manche (2) servant de poignée comprend : un boîtier externe cylindrique métallique (4) ayant une première extrémité (4a) et une seconde extrémité (4b) ； un élément interne (5) ayant une petite extrémité (5a) qui est insérée à travers la première extrémité (4a) et ayant également u
