Dental model and model teeth

摘要

The purpose of the present invention is to provide a dental model capable of strongly fixing model teeth to a model main body and capable of configuring model teeth with a desired length. This dental model is provided with a model main body, model teeth which have a dental crown and a dental root and which are attached to the model main body, and screws which have a shaft and a head and which detachably connect the model teeth to the model main body. The model main body is provided with a base, dental root arrangement units which are provided on one surface of the base and in which the dental roots are arranged, holes which are formed in the dental root arrangement units and through which the shafts are inserted, and support pieces which protrude from the one surface of the base and which support the lateral surface of the dental roots arranged in the dental root arrangement units. The model teeth are provided with screw holes into which the shafts are screwed, and with supported parts which are supported by the support pieces.

主权项

1. A dental model comprising a model body; a model tooth having a tooth crown and a tooth root and attached to the model body; and a screw having a shaft and a head and detachably connecting the model tooth to the model body, the shaft having a peripheral surface on which a male thread portion is formed,
wherein the tooth root comprises an actual tooth portion located at the side of the tooth crown, and an extension portion located at the side of a base end of the model tooth, wherein the model body comprises: a base member, a tooth root placement portion provided in one surface of the base member, the tooth root being arranged at the tooth root placement portion, a gum portion arranged on the one surface of the base member, a hole portion provided at the tooth root placement portion in the base member, the shaft being inserted through the hole portion, and a supporting piece projected from the one surface of the base member and arranged on an inside of the gum portion, wherein the model tooth comprises a screw hole portion, into which the shaft is screwed, and which is formed at the extension portion; and a supported portion provided at the side surface of the tooth root, wherein an engaging concave portion having a shape corresponding to the supporting piece is formed at the supported portion, and wherein the model tooth comprises a neuropore portion extending from the tooth crown through the actual tooth portion.