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Surface completion is a technique for filling missing regions in 3D models measured by range scanners and videos. Conventionally, although missing regions were filled with the similar shape in a model, the completion process was fairly inefficient because the whole region in the model was searched for the similar shape. In this paper, the completion is efficiently performed using principal curvatures of local shape. In experiments, the effectiveness of the proposed method is successfully verified with subjective evaluation. In addition, the quantitative evaluation which has not been in the literature is newly performed.