| 摘要 |
A set of Osteotomes used for forming an implant socket during a ridge expansion osteotomy may be specially constructed to reduce crestal alveolar stress and to reduce likelihood of a crestal fracture. Each osteotome includes a conical working tip having a free end and a working base. A first osteotome of the set has a working tip formed with a first diameter, Y, at the free end, and a second diameter, X, at the working base, with the second diameter being larger than the first diameter, X>Y; and wherein for each successive osteotome of the set, the diameter at the free end increases linearly by a constant increment, k, and the diameter at the working base alternately increases by a constant increment, C, as a step function. Other interrelationships between the free end and the working base of the previous and successive osteotomes operate to maintain crestal integrity. |
| 主权项 |
1. A number of osteotomes, n, forming a set of osteotomes, for use during a ridge expansion osteotomy to reduce crestal alveolar stress and to reduce likelihood of a crestal fracture, each said osteotome of said set comprising a conical working tip with a free end having a diameter φAn, and a working base; a first osteotome, n=1, of said set comprising said working tip formed with a first diameter, φA1=Y, at said free end, and with a second diameter, X, at said working base, said second diameter being larger than said first diameter, X>Y; and wherein for each successive osteotome of said set, said diameter at said free end increases linearly by a constant increment, k, and said diameter at said working base alternately increases by a constant increment, C, as a step function. |
