A few disadvantages of this operating method
In many laboratories the dental arch is prepared by firstly grinding the vestibular surface of the model with a trimmer and then grinding the lingual and or palatal area using a handpiece and coarse plaster bur. This leads to the following disadvantages:
High dust exposure
Not only does this cloud of dust make working procedures more difficult, but the laboratory also becomes unnecessarily dirty.
Time consuming
This process is long and slow due to the fact that the handpiece is only able to remove a relatively low amount of plaster and then the results are not of a high quality.
Inaccuracies
The main advantage, flexibility, is in this situation a disadvantage. Results cannot be identically reproduced and the intended conical shape of the dies (more favourable to lift) is seldom achieved to a standard which would otherwise be possible. The surface structure is uneven.
Risk of breakage
The low performance means the technician is required to use greater pressure, it is therefore not possible to maintain an even plaster thickness throughout the dental arch. In addition to this the dental arch must be held tightly in the hand throughout the procedure, this tension is dangerous for the object.
High maintenance expenses for the handpiece
Handpieces are generally used for a great number of applications, their wear and tear however is a great disadvantage when it comes to maintenance fees. Trimming a dental arch is an unsuitable procedure and high maintenance for a handpiece.
The elegant solution:
The dental arch trimmer Millo pro not only avoids such disadvantages, but it in fact offers a number of advantages.
