ROTOTOME ®

Depth control: thread pitch is set to ensure precise advancement per rotation, accurate to 0.5mm.  The pitch is matched to each instrument so that you, the surgeon can focus on surgery; regardless of diameter, every instrument will advance the same amount per rotation!  Vertical lines on the shank of the instrument assist you in identifying each half rotation of the instrument, without you needing to shift your eyes from the surgical field.

Rate of Expansion: Because bone is pliable living tissue it is capable of compression, and expansion; however, when the manipulation is uncontrolled the outcome treatment is unpredictable.  While many ways of assessing bone density have been described the flexibility and relative hardness vary considerably between individuals. Experienced surgeons know that the only way to truly know how bone will actually behave is during surgery.  Because of the measured rate of advancement and the surgeon’s direct tactile interface with the instrument, proper feed-back is obtained and the operator can adjust the rate of advancement and therefore expansion.  By controlling the rate of advancement two concepts are permitted 1) Interstitial fluid pressure resulting from compression is able to dissipate reducing hydrostatic back-pressure and 2) Unfavorable outcomes can be identified as they are developing and managed prior to completion.

Trajectory:  Because final angulation of the implant is important to the prosthetic outcome, control of the direction of the osteotomy is critical.  From time-to-time, optimizing the position and angle of the implant requires the initiation of the osteotomy at a different angle than the final angle, with a redirection as the procedure continues.  With class I lever mechanics, a direct user-interface in the long access of the instrumentation, and a clear visual reference to the direction of the osteotomy, the surgeon has the best control of the final osteotomy trajectory.

Bone density and Stability:  As a result of the non-cutting action, the bone is compressed rather than removed.  The compression reduces the medullary space and consolidates the trabecular bone, resulting in an osteotomy with a denser bone sidewall than a drilling protocol.  This denser bone will then be able to interface directly with the implant on placement, creating more bone to surface contact and allowing for increased primary stability.

 

*Biohorizons®, Camlog®, DENTSPLY ASTRA TECH®, Hiossen, Implant Direct ® Sybron, Nobel Biocare®, and, Straumman®, Zimmer ® are owned by their respective companies, and do not necessarily endorse the use of Rototome®  Instruments .