By Dr Michael Weiß
Treating patients with permanent restorations in same-day treatments is now state-of-the art in many dental clinics. Modern 3D printing materials and quicker production times in additive manufacturing allow dentists to offer patients with highly aesthetic and definitive restorations in just one visit. Patients appreciate the time savings and simplicity in same-day treatment compared to a conservative approach, which involves several treatment appointments.
Currently, subtractive procedures are predominantly used for the fabrication of dental restorations for same-day treatments, in which the required restoration is usually made of high-strength zirconium dioxide or lithium disilicate. However, additive manufacturing offers several advantages with highly developed 3D printing materials and decreasing production times.
The cost-saving production of complex geometries with high precision in a short period of time in the additive process should be emphasised; with modern 3D printing materials, it is possible to produce definitive restorations.
One material in this field is the ceramic-filled hybrid material VarseoSmile Crown plus. Its high mechanical stability and durability have been proven in numerous scientific studies.1 Due to its strength, the material is more antagonist-friendly and offers better cushioning compared to high-strength restorative materials. VarseoSmile Crown plus is also characterised by high biological safety and good aesthetic properties.
These new technologies enable dentists, in cooperation with the dental labs that supply them, to offer patients therapeutically effective, fast, and cost-effective tooth replacement treatments. The following case description illustrates the concept of a same-day restoration with 3D-printed crowns made of the ceramic-filled hybrid material VarseoSmile Crown plus.
A 52-year-old patient presented for a regular check-up appointment. The patient’s general oral hygiene was good but due to an existing root filling in region 46 and 47, there was a risk of fracture in the molars located in the masticatory centre (Fig. 1). In addition, there was no sufficient chewing function due to the lack of occlusal surface design (Fig. 2).
Crowning of the teeth was therefore indicated. The patient wished to receive the final restoration as quickly as possible and without an additional appointment. It was decided to print the crowns from the ceramic-filled hybrid material VarseoSmile Crown plus for final restorations in the neighbouring dental lab immediately after the preparation of the affected teeth, and to place them on the same day.
PREPARATION AND DIGITAL IMPRESSION
The region to be treated was first anaesthetised. An intraoral scan of the initial situation was performed while the anaesthetic was in place. Teeth 46 and 47 were then prepared. A chamfer or stepped preparation is recommended for the selected crown material; the preparation was made in the form of a chamfer for this patient case.
1. Scientific studies on VarseoSmile Crownplus [Registration: Scientific studies on VarseoSmile Crown plus – BEGO 3D printing]
ABOUT THE AUTHOR
Dr Michael Weiß successfully completed his dental technician apprenticeship in 1980. He completed his training as master craftsman in dental technologies in University of Münster in Germany before studying dentistry at the University of Witten/Herdecke in 1986 and qualifying in 1993. After his residency in 1995, Dr Weiß founded his own dental practice ‘Zahnarztpraxis Dr. Michael Weiß’ in the technology park of the University of Bremen. He received his doctorate from the University of Münster in 1996.