Clinical use of three-dimensional surface reconstruction of spiral CT for impacted teeth in orthodontics / 华西口腔医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To evaluate the value of three-dimensional surface reconstruction of spiral CT-shaded surface display (SSD) to examine the impacted teeth before orthodontic treatment.</p><p><b>METHODS</b>Three-dimensional surface reconstruction of spiral CT and shaded surface display (SSD) was applied to twenty patients whose impacted teeth couldn't be judged clearly through the panorama and occlusal films.</p><p><b>RESULTS</b>Three-dimensional surface reconstruction of spiral CT and SSD could clearly demonstrate the dental surface image including crown, root neck and root bifurcation in three-dimensional way, labial or palatal location, eruption orientation and relation with dentition.</p><p><b>CONCLUSION</b>It is concluded that the three-dimensional surface reconstruction is an accurate and effective method to examine impacted teeth before orthodontic treatment.</p>