| 摘要 |
<p>Accurate planning for the framework design in partial removable dental prostheses (PROP) requires careful analysis of the diagnostic cast with a dental surveyor to determine ideal path of placement. Selected path of placement should be recorded as a reference for subsequent steps to reposition the cast on same recorded tilt. The recording of the relation of a cast to a dental surveyor and the transfer of this relationship to the dental laboratory may be done by traditional methods like tripodization, scoring the base of the cast, and cementing a reference pin on the cast. The magnet device to record the path of placement of PRDP is fabricated with 2 Cobalt-Samarium magnets having 6 mm inner diameter, 19 mm total diameter, and 4 mm thickness. Magnetic device assembly consists of 2 brass metal keepers at each end of the magnet with nut and bolt. The procedure is simple, easily executed. This innovative device is easy to manage by the dentist and laboratory technician, and requires minimal time for repositioning the cast back to the surveyor. Advantages are ease of placement, automatic reseating, and easy, repositioning when needed. The device provides a permanent recording of the selected path of insertion which may be indefinitely preserved for future use.</p> |
