Embodiments of the present disclosure are directed to devices and methods for stimulating cell proliferation. In one implementation, a method for increasing cell proliferation is provided. The method includes providing a vibrational dental device configured to vibrate at a frequency higher than about 80 Hz. The method also includes mechanically stimulating, using the vibrational dental device, cells for less than about 20 minutes daily over a period of time. The number of the cells at the end of the period of time is increased. The cells may include one of human osteoblasts and fibroblasts.