Use of vinyl polysiloxane for the fabrication of implant surgical guide

Use of vinyl polysiloxane for the fabrication of implant surgical guide
December 2004
Cortino Sukotjo, DDS, PhD and Andreas Radics, CDT
The Journal of Prosthetic Dentistry Зѓў Volume 92 Зѓў Number 6
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Proper implant position and angulation contributes to the successful implant-supported restoration. The fabrication of a radiographic and surgical guide prior to surgery may result in a more predictable implant placement.1,2 A traditional method for fabricating surgical guides using irreversible hydrocolloid was introduced by Tarlow.1 Although this method is commonly used in the laboratory, irreversible hydrocolloid is an unstable material if not handled properly. Thus, this method may be limited to fabricating surgical guides.
Vinyl polysiloxane (VPS) has been used in the fabrication of removable partial dentures,3 complete dentures,4 and implant prostheses.5 This article describes a simple, yet versatile VPS putty matrix technique for fabricating a radiographic/surgical guide for implant placement. Although VPS is a more costly material, it has some advantages over the traditional irreversible hydrocolloid fabrication method. For example, VPS may be used to duplicate the denture and, subsequently, to serve as a tooth position index,5 as well as to assess the available space for implant placement.6
References
1. Tarlow JL. Fabrication of an implant surgical stent for the edentulous mandible. J Prosthet Dent 1992;67:217-218.
2. Becker CM, Kaiser DA. Surgical guide for dental implant placement. J Prosthet Dent 2000;83:248-251.
3. Mitchener RW, Omori MD. Putty materials for stable removable partial denture bases. J Prosthet Dent 1985;53:435-436.
4. McCartney JW, Thompson GA, Goheen KL. Silicone putty diagnostic casts for edentulous patients wearing complete dentures. J Prosthet Dent 1994;71:220-221.
5. Fridrich T, Foo H. Tooth position index for the fabrication of a mandibular implant-supported overdenture bar. J Prosthet Dent 1998;80:121-123.
6. Chaimattayompol N, Arbree NS. Assessing the space limitation inside a complete denture for implant attachments. J Prosthet Dent 2003;89:82-85.