观察上颌前部牙槽骨内圆柱洞形扩宽后行同期人工牙种植的临床效果。
To investigate the clinical effects of dental implantation after column hole shape endosseous expansion in alveoli of anterior maxilla.
内毂套具有周向延伸的连续的波状导槽，而外毂套具有在其内圆柱面上均匀分布且轴向延伸的沟槽。
Interior hub sleeve has the continuous wavy guide slot that circumference is extended, and outer hub sleeve has evenly distributed and axially extended slot on its inner cylinder face.
内毂套具有周向延伸的连续的波状导槽，而外毂套具有在其内圆柱面上均匀分布且轴向延伸的沟槽。
Interior hub sleeve has the continuous wavy guide slot that circumference is extended, and outer hub sleeve has evenly distributed and axially extended slot on its inner cylinder face.
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