The Truth About Air Abrading A Tibase

When it comes to dealing with tibases, a common question that often arises among dentists is, “should I air abrade a tibase before cementing an implant crown to it?” This blog post aims to answer this query based on existing studies and best practices.

Understanding the Tibase

Firstly, it’s essential to grasp the role of the tibase in the dental restoration process. A tibase is the connecting component between the dental implant and the restoration, often an implant crown. One of the key decisions that dentists have to make is whether to air abrade a tibase before cementing an implant crown to it.

To Air Abrade or Not To Air Abrade

Air abrasion is a microetching technique used in dentistry to prepare the surface of a tooth or a dental crown (zirconia). The idea behind air abrasion of a tibase is to increase the surface area and create a better mechanical bond. However, it turns out that not air abrading might be the better approach.

Studies have shown that not air abrading the tibase can actually lead to higher bond strengths of crowns to tibases. This is counterintuitive to what many might expect, but the research is clear on this point.

The Standard Protocol for Implant Crown Cementation

Rather than air abrading, the regular treatment for the crown is recommended. For instance, when working with Emax, the process would involve a Hydrofluoric (HF) etch for 20 seconds in the access hole. This is followed by a minute with silane (Monobond plus or other products). Silane is also placed on the tibase itself.

Once both the crown and tibase are prepared, a small bead of cement is applied to the tibase. The crown is then seated on top of it. To facilitate the process, consider using special pliers, which can assist with holding the components together.

The Takeaway

In summary, while both methods – air abrading or not air abrading – are acceptable, opting not to air abrade the tibase seems to result in higher bond strengths. Thus, this might be the more effective choice for cementing an implant crown to a tibase. It’s always essential to stay updated with recent studies and adjust your procedures accordingly to provide the best possible care for your patients.