Modellzahn zur Zahnheilkundeübung und Vorrichtung zur Zahnheilkundeübung mit befestigtem Modellzahn

The present application is intended to provide a tooth model for dentistry practice and a dental practice device showing no deviation of tooth axis even after repeatedly attaching/detaching. At the side of the root of the tooth model for dentistry practice having a crown part 1 and a root part 2 , a model tooth fixing part 3 which is made of a flexible synthetic material and has a column shape having a tooth axis 8 as the central axis is formed. At the bottom side, this fixing part has an enlarged part 7 enlarged outward around the tooth axis. This enlarged part is divided into smaller parts by dividing faces passing through the tooth axis and each division can deform toward the tooth axis. In this device for dentistry practice, the above-described tooth model is fixed into a fixing base 4 having a tooth fixing hole 5 capable of containing at least a part of the root part and the model tooth fixing part therein. Upon detachment, each divided part of the enlarged part bends toward the tooth axis and thus a locking part 6 provided in the tooth fixing hole and each divided part of the enlarged part is unlocked.