3D CUSTOM MADE BRACKETS

 

The brackets are manufactured applying CAD/CAF technology. 3D software is used to design every virtual bracket characterised by an extended surface of bonding on the lingual crown of the tooth and perfectly adapted to its anatomy. Re-bonding phase is facilitated. Open pores through the pad can be performed using a specific technology. Because of specific properties of retention on the pad, the RMO^® - Lingualjet^TM brackets provide a high strength of bonding.

All the slots are related to the virtual arch wire and are extruded of round shaped brackets with smoothed outlines providing optimal patient comfort. Virtual brackets are then cast in metal via a step of conversion of the digital objects into a resin or wax models by a Rapid Prototyping machine. Gold alloy is preferentially used. For particular metals like zircon, the real brackets can be directly obtained after the transfer of digital data to a machine tool which directly cuts out the brackets from pre-formed pieces of material. No matter what metal the practitioner chooses, each bracket is fully individualized both to the tooth and to the arch wire by the complete manufacturing process. 

A NUMERICAL SET UP

The dental arches of the patient are digitalized from a PVS impression. A numerical set-up of the final positions of teeth is performed by using appropriated software. The practitioner then has the possibility to check the set-up and can simulate specific requirements of placement if necessary. Then, the numerical set-up constitutes the working model for the engineering step. The high resolution and the accuracy of the method of tooth positioning provide a top of the range procedure in regards to the precision and the personalization of the appliance.

The numerical set-up is a very user friendly and precise tool for defining the terminal dental arches. In addition, the numerical relocation of brackets on the initial deformation can be calculated and a resin model with the brackets on is prototyped to make the transfer tray.

A FLAT ARCHWIRE 

Another improvement to lingual orthodontics is the use of a flat wire in the transversal direction, which can be slightly rotated on the sagittal plane in case of specific demand. The archwire chart is drawn respecting a standardized shape wire and exactly intersects the axis of each bracket at the centre of the slot. Thus, the appliance is completely adapted for the use of straight wires which can be chosen by the orthodontist with variant grade of elasticity in all phases of treatment. This confers to the system all the properties of a very secure and accurate straight wire technique.

 

3D FACIAL IMAGERY 

Moreover, in some special clinical situations, or complicated cases, for greater efficiency the practitioner can order a radiographic CT scan or a volumetric acquisition (Cone Beam technology).

Then after a 3D imaging treatment of the original scan data, more individualized parameters can be computerized for the highest level of individualization. In this way, anatomical maxillo-facial elements such as teeth, bones and skin are reconstructed as well as the anatomical landmarks of the TREIL’s maxillo-facial frame. Subsequently, facial features can be related to bone structures, bone to teeth, and inversely, from teeth to the face. As well, 3DT cephalometrics are available for quantitative analysis and many geometrical parameters are measured allowing numerical applications of therapeutic aid. This imagery makes a new perception of facial aesthetics and takes into account the real impact of dental structure on the facial balance. A fantastic opportunity is available to apply

an innovative and full-purpose biometry of the face, maxillaries and teeth.