| 摘要 |
A method and apparatus is disclosed for use by dental practitioners to enable the restoration of decayed or damaged teeth. The method comprises preparing the tooth for installation of the disclosed apparatus, which will be referred to herein as a pillar cusp, by removing decay, old restorations and damaged tooth structure, and then preparing a horizontally disposed, flat circular area or niche on the dentin for each cusp to be restored. The flat circular area should be approximately centered on an axis located through that of the removed cusp. A vertically disposed channel is then drilled at the center of the niche and a self-threading dental anchoring device or screw is inserted into the channel. The pillar cusp, which, in effect, is an artificial or man-made dentin, is then threaded onto the screw. After any necessary adjustments have been made to properly seat the pillar cusp, impressions are taken and the crown or onlay used to complete the restoration is then secured to the pillar cusp or pillar cusps, if more than one cusp has been restored. The pillar cusp itself comprises a metallic, frustum shaped device, threaded through its longitudinal axis for threading onto the above-mentioned dental anchor such that its base lies flush on the circular, flattened area of the dentin.
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