Differences in subgingival shoulder position in digital design and intraorally on CAD/CAM custom made abutments. A prospective case series.

Jan Pietruski; Anna Skurska; Anna Bernaczyk; Robert Milewski; Maria Julia Pietruska; Ma��šgorzata Pietruska

Volume : V, Issue : VIII, August - 2016

Differences in subgingival shoulder position in digital design and intraorally on CAD/CAM custom made abutments. A prospective case series.

Jan Pietruski, Anna Skurska, Anna Bernaczyk, Robert Milewski, Maria Julia Pietruska, Ma Gorzata Pietruska

Abstract :

 Aim: The aim of the clinical study was to compare the abutment shoulder position in relation to the free gingival margin on a customized CAD/CAM abutment in a digital design with a real intraoral situation following abment delivery. Material and Method: 305 dental implants were evaluated in the study. Results: A statistical analysis revealed positive correlation between the virtually designed shoulder and its actual position. A decrease in the vertical dimension of the tissue occurred in 21.7 % of cases while an increase in this dimension was achieved in 34.4 % of cases. Conclusion: Within the limitations of this study it can be assumed that virtual designing of the abutment shoulder position gives intraorally average predictable results. As there was a reduction in tissue height in one sixth of the implants placed in the aesthetic region special care is needed in cases involving particular aesthetic demands