Caroliene Meijndert

70 Chapter 4 deproteinized bovine bone mineral (BioOss®, Geistlich, Wolhusen, Switzerland) and the implant was covered with a collagen membrane (Bio-Gide®, Geistlich, Wolhusen, Switzerland) to heal submerged for 4 months. The definitive crown was placed after uncovering the implant. At the T 12 follow-up this implant had a peri-implant bone level at the neck of the implant and healthy peri-implant soft tissues. Table 5. Patient satisfaction was rated on a 0-100 VAS scale and further clarified in a questionnaire. T pre is time prior to implant placement. T 12 is twelve months after definitive crown placement. Significance levels between T pre and T 12 . T pre n=25* T 12 n=30 p Overall patient satisfaction 0-100 VAS scale (mean ± SD) 53.0±23.5 90.1±6.5 <0.05 ¥ Questionnaire , % in agreement Wellbeing Presence of shame 32.0 0.0 0.008 ‡ Decreased self-confidence 16.0 3.3 0.25 ‡ Aware of prosth. visibility 24.0 3.3 0.063 ‡ Function Evade eating with affected zone 60.0 10.0 0.000 ‡ Decreased chewing ability 52.0 0.0 0.000 ‡ Influences speech 32.0 3.3 0.016 ‡ Influences taste 28.0 0.0 0.016 ‡ Aesthetics Satisfied with shape of the RPD/crown 48.0 100 0.000 ‡ Satisfied with colour of the RPD/crown 68.0 93.3 0.016 ‡ Satisfied with shape of the mucosa 60.0 86.7 0.016 ‡ Satisfied with colour of the mucosa 44.0 86.7 0.006 ‡ * 5 participants did not wear the removable partial denture (RPD) and therefore did not answer the questionnaire. These participants were left out of the statistical analysis. ¥ paired T-test ‡ Mc Nemar’s test Discussion The results of this prospective clinical case series of single bone level tapered implants, placed in unassisted healed sites in the aesthetic region, one year after definitive crown placement, regarding stability, clinical, radiographic, aesthetic and patient-centred outcomes, were favourable.