Abstract: An intra-oral lighting device for illuminating a tooth located in the mouth of a patient, the device including a source of light, and a probe through which light from the source of light is transmitted, the probe including a tip from which light received from the source of light by the probe is emitted, the tip being insertable by a user into an aperture bored into the enamel of the patient's tooth whereby the tooth is illuminated from within by light emitted from the tip. Also, a method of illuminating a tooth disposed in the mouth of a patient, including the steps of drilling into the tooth a hole that extends into the tooth enamel, inserting into the drilled hole the tip of a light-transmitting probe connected to a source of light, and emitting light from the probe tip disposed in the drilled hole, whereby the tooth is illuminated from within by light transmitted into and through the tooth enamel from the probe tip.

Abstract: A writing device is disclosed wherein a clear overlay is pivotally attached to an underlying enclosure. A support surface is formed on the enclosure beneath the clear overlay. Paper forms may be placed on the support surface such that one may write on the clear overlay, using the written guide to trace. In another feature, the support surface is provided by a secondary writing surface that may be selectively positioned on the overlay. The secondary writing surface upon removal is dimensioned to be accepted within a well-like enclosure formed by the frame for the clear overlay. The secondary writing surface is erasable, may be formed of a porcelainized wallboard, and additionally may be magnetized. Alternatively, a chalkboard may be utilized for the secondary writing surface. The overlay is preferably formed of a non-porous coated plexiglass to make it being easily erasable. In addition, the overlay may be attached to the enclosure through a removable hinge such that it may be removed for cleaning.