1. I did a copy of a dental cast
2. I destroyed some teeth
3. I build it up with green wax
At first I took a look on internet and I concluded some ideas of veneers.
It is thin slices of porcelain that cover the buccal of the anterior teeth.
- Porcelain laminate veneers
- Porcelain veneers
- Horn lamellae
The discoverers were:
- Buonocuore 50s
- Rochette 60s
- Bowen and Simonsen 80s
- Conventional feldspathic porcelain (ideal, more aesthetic)
- Leucite-injecte reinforced feldspathic porcelain
- More rigid
- Empress (representative system)
- Aluminous Porcelain processed by computer.
- CEVEC, Celay, procera.
- More resistant and opaque
- Not as much adhesion as feldspathic
- Polymers or resins
- Color anomalies
- Amelogenesis (Although isn't the most indicated)
- Form alterations
- Convert the canine into lateral incisor (agenesis)
- Abnormal structure or texture
- Coronary fractures
- abnormal angulatio
It isn't indicated in this cases:
- Inadequate Enamel (minimum 50%)
- Margins outside of the enamel
- devitalized teeth
- Small clinical crown
- Teeth with cavities or fillings
- Poor oral hygiene
- Erupting teeth
- Fractures involving more than 2/3 coronal
- Severe stains or bad habits such as:
- Inadequate Occlusion
- Important Malposition
Once we have all the necessary information, we can explain to the patient if he wants the veneers. First of all we have to do a diagnostic wax. It is like important to prepare the case. Here we have the cast copy.
1) 3 Buccal horizontal guide grooves 0.3-0.4mm
the the TFC1 Touatti guide, TFC2 drills.
2) Vestibular reduction
We mark with pencil to reduce not longer than desired.
Respecting the 2 planes with cylindrical cutter.
Average reduction of 0.5mm (0.7-0.8mm 0.6-0.7mm incisal and medial)
0.3mm Margin chamfer
Reaching invisible areas without touching contact points