Esthetic, clinical and patient-centered outcomes of immediately placed implants (Type 1) and early placed implants (Type 2): preliminary 3-month results of an ongoing randomized controlled clinical trial

AimThe objective of the study was to compare (i) esthetic, (ii) clinical and (iii) patient-centered outcomes following immediate (Type 1) and early implant placement (Type 2). Material and methodsThirty-eight subjects needing a single extraction (premolar to premolar) were randomly allocated to Type 1 or Type 2 implant placement. Three months following permanent crown insertion, evaluation of (i) esthetic outcomes using soft tissue positions, and the pink and white esthetic scores (PES/WES), (ii) clinical performance using probing pocket depth (PPD), modified plaque index (mPI) and modified sulcus bleeding index (mSBI) around each implant and (iii) patient satisfaction by means of a questionnaire using a visual analogue scale (VAS) was performed. ResultsThirty-two patients completed the 3-month follow-up examination (Type 1, n=17; Type 2, n=15) with a 100% implant survival rate. Type 1 implants lost 0.540.18mm of mid-facial soft tissue height, while Type 2 implants lost 0.47 +/- 0.31mm (P>0.05). The papillae height on the mesial and distal was reduced about 1mm following both procedures. The PES/WES following Type 1 implant placement amounted to 13.7 +/- 0.6 and 12.5 +/- 0.7 in the Type 2 group (P>0.05). PPD, mPI and mSBI were low in both groups (P>0.05). Patient-centered outcomes failed to demonstrate any statistical difference between the two cohorts. ConclusionThree months following final crown delivery, there were no significant differences in esthetic, clinical and patient-centered outcomes following Type 1 and Type 2 implant placement. On the short term, one may achieve good optimal esthetic and clinical results irrespective of these two placement protocols. These results need to be confirmed on the long term.