Manufacturing technique: Improving fit of ultrathin laminate veneers
A manufacturing technique may improve the effectiveness of ultrathin laminate veneers.
In a study published in the Journal of Dentistry, researchers analyzed how a manufacturing trinomial — which included the manufacturing technology, 3D printer and material — and restoration thickness impacted fabrication trueness, fit and margin quality in additively vs subtractively manufactured resin-based ultrathin laminate veneers designed from the scans of a set of identical maxillary central incisor typodonts. They used either tilting stereolithography or a digital light processing printer to additively manufacture the veneers with resins.
The researchers found that the manufacturing trinomial’s interaction with the main factors modulated the fabrication trueness and fit, whereas restoration thickness affected the fit of the veneers. For instance, the tilting stereolithography manufacturing technology demonstrated the greatest trueness, with the lowest deviations and gaps. However, all of the veneers included in the study were found to have a clinically acceptable fit, exhibited slightly rough margins and showed minimal defects.
The findings indicated that using tilting stereolithography and the manufacturing trinomial strategy to additively fabricate ultrathin laminate veneers may allow dentists to make fewer clinical adjustments.
Read more: Journal of Dentistry
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