In the indirect restorations workflow one of the most important steps is to get an easy, detailed and stable impression. In this way the dental technician can build up a natural and fitted restoration that emulate the aesthetic natural dental tissues and preserve the biology.
For a few preparation units number a faster impression material can be easy and better to use. The impression material we used in this case Impregum Super Quick Polyether is a superfast polyethe with 45 seconds working time and quick 2-minute setting high flow behaviour and high level of accuracy and detail reproduction.
Through the precise final ceramic restorations adaptation we can evaluate the high precision impression detail of the Impregum Super Quick Polyether.
Fig.1
30 Years old man patient wants to improve the aesthetic in the anterior upper teeth.
The two central incisors had old composite resin restorations and some space and tooth proportions need to be corrected.
Fig.2
Initial situation.
Fig.3
Shade selection with the teeth hydrated. The Vita 3M Master shade tabs was used to make the shade selection. Due to the high value of the anterior teeth and also to match the patient expectations the Shade 0M3 was selected and the photos was send to the dental lab for shade communication.
Fig.4
In the wax-up the volume, inter-dental spaces and tooth proportions was corrected. Was planned make tree glass ceramic veneers on the teeth 12, 11 and 21.
Fig.5
Wax-Up model.
Fig.6
Through the wax-up model was made a silicone index with Express Putty Soft for the mock-up.
Fig.7
Mock-up in the mouth made with Protemp 4.
Fig.8
Tooth preparation guided by the mock-up.
This allow the dentist to be more predictable on the space need for the restorative material and at same time keeps more tooth structure.
Fig.9
Teeth 12, 11 and 21 after preparations and ready for impression.
The old composite restorations was removed in the central incisors due the discolouration.
Fig.10
The 3M Impregum Super Quick Light Body was applied on the tooth preparations with the 3M Intra oral Syringes Purple.
Fig.11
The 3M Impregum Penta Super Quick Heavy Body was applied in a 3M medium tray and was used a double mixture impressing technique.
Fig.12
Impression with Impregum Super Quick Polyether.
Fig.13
Details of the margin quality with Impregum Super Quick Polyether impression.
Fig.14
Provisional restorations made with Protemp 4 through the mock-up silicone index.
Fig.15
Workflow in the dental lab, started on the wax-up model, alveolar model of the impressions and finished on the glass ceramic veneers.
Fig.16
Glass ceramic veneers of the tooth 12, 11 and 21.
Fig.17
Detail of the glass ceramic veneers margins.
Fig.18
Glass ceramic veneers of the tooth 12, 11 and 21 in the stone model.
Fig.19
Glass ceramic veneers of the tooth 12, 11 and 21 in the stone model.
Fig.20
Glass ceramic veneers try-in.
Fig.21
Details of the perfect and natural fit and margin adaptation of the glass ceramic veneers (tooth 21).
Fig.22
Details of the perfect and natural fit and margin adaptation of the glass ceramic veneers (tooth 11).
Fig.23
Conclusions
The goal of anterior indirect restorations is to replace in a natural outcome the dental tissues. This means put together natural aesthetic, function, precise fit with a healthy biologic integration.
At same time in the dental office a precise impression in a quick time procedure can helps in the daily clinical workflow for some cases when just a few tooth units are prepared.
In a easy and quick way the Impregum Super Quick Polyether gave us in this case a high level of accuracy and detail reproduction that we can see in the ceramic perfect fit and adaptation.
