In general, if you have a question on accuracy of which one to use, the use of an open tray impression coping will typically be more accurate. However, if the implants are malaligned it is advisable to use open tray impression copings since the misalignment of the implants may lock the impression in the mouth if closed tray impression copings are used because of their lack of draw. If you have multiple implants but plan on restoring them as single-units, you may choose to use closed tray impression copings for ease of use. with resin) can improve the accuracy as well. It has also been shown that splinting the impression copings in the mouth (ie. However, if you have multiple implants that will be splinted in either partially or fully edentulous patients, open tray impression copings will be more accurate. In general, for single-unit partially edentulous patients, closed tray and open tray impression copings can be used interchangeably. A recent systematic review of the literature by Papaspyridakos et al, can help shed some light on the use of the different implant copings. If you have ever locked an impression in the mouth, you know exactly what I mean! It is for this reason that many clinicians would rather use closed tray impression copings.Ĭan these different types of impression copings be used interchangeably? The answer depends on the clinical situation. If you are like most clinicians, using an open tray impression coping may bring a little bit of anxiety with it since you must make sure you can find and access the impression coping screw in order to remove the impression. The final abutments seat completely into the internal cone creating a seal that prevents bacterial contamination.Impression copings for implant prosthetics generally come in two distinctly different types: closed tray or open tray. This prevents them from cold welding to the internal cone, making them easier to remove. WB Components: Will work with any of the BLX implants with a diameter of 5.0 mm or greater and can be helpful in creating a better emergence profile in large spaces. These abutments have a wider base that sits on top of the implant shoulder in addition to the internal connection.Īnother unique aspect to the BLX line is that the healing and temporary abutments are designed so that they don’t fully seat inside of the implant.This includes the healing abutments, impression copings, and all prosthetic abutments. RB Components: Will work on all of the implants in the BLX line. Although the standardized connection makes it possible to use just one component size, there are actually two different sizes available: Regular Base (RB) and Wide Base (WB). This consistency simplifies the prosthetic options and allows the same components to be used for all of the implants in the line. The BLX implants are offered in a range of diameters and lengths, but the prosthetic connection is the same throughout the entire line. It features a seven-degree internal cone with a star-shaped anti-rotation element. This star shape allows for greater torque transmission eliminating the need for a Loxim transfer mount. The new connection of the BLX system is called TorcFit. It combines an innovative design for optimised stability with the high-performance Roxolid metal alloy and the SLActive surface. It is also suitable for all other treatment protocols – ranging from immediate to conventional placement and loading – to suit the dentist’s preference. Straumann BLX is a fully tapered implant system designed for immediate treatment protocols in all bone types.
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