In an attempt to incorporate the concept of patient engagement, this study investigated the patients’ satisfaction with the rehabilitated posterior region by assessing specific patient-centred outcomes. This was done by the patients filling out the established questionnaire 1 year after restoration placement [26, 27]. All the questioned outcome measures showed high patient satisfaction which is similar to the level reported in comparable studies with single tooth replacements in the posterior region and using the same questionnaire [26, 27]. Success rate in the present study, being 73.3%, was comparable with the calculated success rate in the study of Atieh et al. [15], being 66.7%.

A limitation of the pilot study is the small sample size. Nevertheless, the results are worthwhile mentioning. As to whether wider implants, with a small thread pitch, would have given better results within this study protocol is still under debate and should be explored with a larger study population. In addition, the inherent lack of a control group associated with a case series study is another factor that needs to be taken into account. Furthermore, even though the 1-year follow-up period is enough to indicate early implant failures and short-term restorative complications, it is considered to be a short post-treatment evaluation period.