Views: 280 Author: Site Editor Publish Time: 2023-10-19 Origin: Site
After that, you will need to take an impression of the implant, and the precision of that impression will be directly related to the quality of the process and the substance that you use. Before you come to any conclusions about your options and the ways in which they will impact your strategy, the amount of work you get done, and the quality of the results you produce, you should give careful consideration to all of these factors.
If you are like me and want to make sure that your impression operations are accurate, straightforward, and time-effective, then generating a superb implant imprint is dependent on three factors: knowing which technique to use and when, understanding why you chose that strategy, and picking the suitable material.
There are fundamentally two methods for making an impression: open tray (direct pick-up) and closed tray (indirect transfer). The method that is used is defined by the type of imprint copings that are utilized in the process. Because it is a less frequent method and a combination of the other two, the "snap-on" technique, which involves utilizing a closed tray and direct transfer, is not described in this article. This is due to the fact that the "snap-on" technique requires employing direct transfer.
In a manner that is analogous to traditional crown and bridge procedures, the impression coping is left in place on the implant after the set impression has been removed from the mouth during the process of making the impression of the implant. This is done after the impression of the implant has been taken. Following the removal of the coping from the implant and its subsequent placement on the implant analog, the coping is then fixed in position. After that, the coping and analog assembly is repositioned (seated) at the correct indexed place of the impression.
In this method, the impression coping is "picked-up" and stays in the finished impression after the mouth is closed. Once the impression has dried, the impression can be taken out of the mouth by accessing the screw securing the implant's coping through a hole in the tray and unscrewing it. The implant analogy is attached to the coping once it has been removed from the mouth.
Depending on the clinical scenario, different approaches may be used. The open tray method, however, typically entails more stress, time, and expense because you need to be sure you can locate and access the coping screw in order to remove the impression. Anyone who has ever locked an impression would understand what I mean. I made that mistake once, and I'll never do it again!
The literature suggests that the open tray method is more precise.1,2 As long as you use the proper material, I don't think there is much of a difference between closed and open tray impressions for single-unit restorations.
What do I employ? Simply because it's so simple to use, I frequently utilize the closed tray. This method becomes predictable, especially when combined with a substance that is incredibly hard and easy to work with, like polyether from the family of 3M Impregum Impression Materials. I feel confident using this material because it retains the implant coping position thanks to its high rigidity, and the operation is kept simple by employing a single material consistency in a monophase approach.
A monophase polyether offers a wide range of applications. These images demonstrate the usage of the same material as a tray and for syringing abutments. The substance in the syringe displays shear thinning, which causes it to act like a gentle body wash. In this condition, all you can concentrate on is syringing around the coping.
The closed tray approach with 3M Impregum Penta Impression Material used in a monophase technique has been utilized to capture hundreds of impressions with a 100% successful fit. In my experience, using this strategy can help you standardize the process, make it simpler, and lower the likelihood of errors, expense, and outcome unpredictability.
A procedure with an open tray will be more precise and should be utilized if you have several implants that will be splinted. A traditional polyether with a longer working time will give you more leeway to make sure the tray is seated properly. Because of its distinctive snap-set characteristic, Impregum Penta Impression Material keeps flowing throughout the whole working period. This makes the substance forgiving since the added flowability enables careful tray manoeuvring to locate the hole without compromising impression accuracy.
Remember that it is best to use an open tray impression coping if the implants are not in the correct spot. This is something that you should keep in mind. You need to keep this in mind, therefore keep it in your thoughts. It is possible that the imprint will become lodged in the mouth if you use the closed tray method on copings that are not properly aligned. This is due to the fact that the copings will not have enough pull to properly release the impression. In the event that this occurs, you will be required to take the imprint again using the open tray method. If you are unclear about which impression coping to employ to attain the appropriate level of precision, the open tray impression coping is normally the safest option to go with as it is the most common and widely used type of impression coping. Because it is the norm in the area, the product's quality will not in any way, shape, or form fail to meet your expectations in any way.
Before moving on to the next phase, which is hand tightening, you need to make sure that the imprint coping is positioned correctly. This should be done before moving on to the next stage. Following that, you are free to proceed to the following stage. It makes no difference which approach you take because this is always the case.
To put it more succinctly, I am looking for an impression material that is compatible with both the "open" and "closed" tray impression techniques and that grants me the ability to precisely record the entire three-dimensional position of the restorative implant platform, which includes the teeth as well as the soft tissues. To put it another way, I am looking for an impression material that is compatible with both the "open" and "closed" tray impression techniques. To put it another way, I'm looking for an impression material that has a lot of flexibility. When all of these parameters have been met, the only thing that is left to do is determine the time of day during which you will be the most productive to work. This is the only thing that is left to do once all of these conditions have been completed.
It is achievable to obtain a detailed impression in a single pass if the most proper procedure is utilized within the most ideal clinical situation. As you move through the numerous steps of the strategy you've chosen, remember to take into account the clinical presentation and to keep your ultimate aim in mind. This should be done at all times, from the very beginning to the very conclusion of the process. Why not choose a material that just requires one phase if it can do all of the functions required? This will ensure that impression postings are safely documented, will simplify the procedure, will provide the maximum level of accuracy possible, and will assist you in overcoming any issues that may come up in the future.
