Direct veneers, the single incisor challenge
This case is very special to me, as the patient is both my mentor and my brother, who’s a great dentist and professor. So you’ll understand how it felt when he called me up one day, asking me to restore his tooth because he wasn’t satisfied with his smile.
So this very special patient needed me to treat his central incisor, which he broke when he was young. Back in the day he had the fragment reattached.
After evaluating color shades, I fabricated a wax-up to pre-perform and pre-visualize the morphology and texture, and to memorise all the details.
After this morphological planning, we need to train our own eyes to see colors, so I performed a composite button try to select the exact composite shade.
In order to preserve the most enamel, I used Aquacare to sandblast the old composite resin in between the fragments.
Afterwards, I removed the old composite, so the tooth is now ready to start restoring.
Before placing the rubber dam, I perform a last chromatic test, using the same composite shade and thickness to create some kind of a “test veneer”, in order to assess shade selection was correct.
After this last test I isolate with the rubber dam and protect the contiguous teeth with teflon tape before etching with orthophosphoric acid for 30 seconds.
After having dried the whole surface, it’s time to bond. I also apply the adhesive to the palatal surface.
I mark the limit of the restoration on the silicone index with the LM Fissura instrument before applying the composite mass, in order to minimise material residue.
The first layering step is very important, as it’s the time you create the contour for the whole restoration. You set the incisal line and the shape of the embrasures. To build the palatal wall I used a chromatic enamel mass (WE, Filtek Supreme, 3M).
After building the palatal wall, I placed the UNICA matrix to create the full contour and to easily control the contact point. For this layer I used the MW Estelite Omega (Tokuyama Dental).
After the first layer, I needed to create the internal morphology and to reposition the transition line.
For the final layer of the veneer I used a high value enamel mass to even the appearance of the restoration.
To easily access the proximal areas I always use the LM Arte Modella and Applica Twist.
The last light-curing cycle is 40 seconds, to get full conversion.
After layering is finishes, we can remove the rubber dam before polishing.
The restoration, right after rubber dam removal.
To polish the buccal surface I use silicone tips and polishing paste.
Followed by brush and felt discs.
This is the final result using 3 composite shades and absolutely no dental preparation.
The Before and After.
With minimal invasiveness in mind, today’s composites are a better option compared to ceramic restorations, so I choose composite veneers for all my patients when a restorative, non-invasive treatment is needed. Always put preservation of your patients’ teeth first.
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4. Ottoboni TDO, Falacho RI. The importance of diagnostic wax-up to make predictable composite resin aesthetic restorations in anterior dentition. J Clin Dent Res. 2016;13(3):54-60.