According to international studies and researches done by the Research and Development Department in ‘GPS INTERNATIONAL’, we do not manufacture prosthetics without tooth preparation for the following reasons:
A- Veneers manufactured without tooth preparation may not fit properly due to lack of stability and mechanical support on the edges prepared by the dentist.
B- From the Technical perspective, without tooth preparation the Veneers would be of very thin thickness, and this will negatively affect two important points:
First: To achieve the natural lively appearance and achieve transparency of the restorations, multiple layers of porcelain must be applied using the Layering Technique, and this is not possibly achieved with very small thicknesses.
-Second: When reducing the thickness of the restorations, it will negatively affect their strength and hardness, and it is possible for the veneers strength to reach (100-200 MPa or even much less), which is a weak strength.
NOTE:
The normal strength of veneers is from 350 to 500 MPa.
The normal strength of zircon restorations is from 900 to 1200 MPa.
The strength of each depends on the thickness of the restoration.
The most important thing is that GPS INTERNATIONAL is capable of manufacturing restorations of all thicknesses, but the health and the trust of our customers is our highest priority.