| 摘要 |
A dental retractor made of a shape memory material to be easily bended and restored to an initial shape under predetermined conditions is provided. The dental retractor includes a retraction portion made of nitinol or alloy including nitinol to be bendable and to have shape memory characteristics, and configured to hold gingival tissue by being supported by a tooth; a support portion connected to one side of the retraction portion to support the retraction portion; and a handle portion connected to the support part. Since the dental retractor is easily bent and variously deformed as necessary, convenience of a surgery may be increased. In addition, since the dental retractor is restored to the initial shape under the predetermined conditions after the surgery, convenience is increased.
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