About this trial
The digital workflow in dentistry has proven in the past decades to be a time-efficient, multifunctional, effortless, and accessible approach. The inherited shortages milling machines represented by the incapability to produce accurate complex hollow structures may give preference to modern 3D ceramic printing.
Computer-aided-design/computer-aided-manufacturing (CAD/CAM) in dentistry is a digital subtractive approach for manufacturing indirect restorations. Nevertheless, waste materials and milling burs wearing are considered as key disadvantages of CAD/CAM technology, and are the main drive to improve 3D printing technology (additive manufacturing) as the latter has shown considerable efficiency in minimising wasted materials.
Although additive manufacturing has been known since the 1980s, its application in dentistry is relatively new and not fully studied with limited research and in vivo studies on their clinical performance.
Eligibility criteria
Qualifiers
Males or females.
Participants with carious vital ower molars indicated for onlay (one or two missing cusps)
Patients with at least 20 teeth under occlusion.
Good oral hygiene.
Disqualifiers
Participants with parafunctional habits or bruxism.
Participants with systemic diseases or disabilities that may affect participation.
Heavy smoking.
Pregnancy.
Trial design
Treatments tested in this trial
- CAD/Cam milled onlays
- 3D printed onlays