Immediate Loading of Single Post-Extractive Implants in the Anterior Maxilla: 12-Month Results From a Multicenter Clinical Study

Abstract

The purpose of the study was to evaluate survival and peri-implant bone levels of single, immediately loaded post-extractive implants in the anterior maxilla 12 months after implant placement. Thirty-six consecutive patients from 3 study centers were included in the study. The concerned sites were upper premolars, canines, and incisors. For each patient the following data were recorded: reason for tooth extraction, bone quality, implant size, and final insertion torque. Implants were placed using a flapless technique and immediately loaded with a nonoccluding temporary restoration. Final restorations were provided 4 months later. Peri-implant bone resorption was evaluated radiographically after 6 and 12 months. The average final insertion torque was 70.55 Ncm. One implant inserted in D3 quality bone with a 35-Ncm seating torque was lost. All other implants had a final insertion torque ranging between 50 and 80 Ncm. The average peri-implant bone loss was 0.437 and 0.507 mm at 6 and 12 months, respectively. All the sites maintained excellent papillae and peri-implant soft-tissue conditions. The resulting 1-year success rate was 97.2%. Immediate nonfunctional loading of single post-extractive implants in the anterior maxilla is a predictable treatment. And it seems that achieving high insertion torques by placing self-tapping/self-condensing implants in an underprepared osteotomy is favorable.

Immediate Placement of Dental Implants in the Esthetic Zone: A Systematic Review and Pooled Analysis

“…Methodologic quality was assessed by two reviewers (KS and LH) using specific study design–related forms designed by the Dutch Cochrane Collaboration. The two observers independently assessed the included articles 8,10,11,14‐48 based on the recommended approach for assessing risk of bias in Cochrane reviews (Table 2).…”

Marginal bone and soft tissue behavior following platform switching abutment connection/disconnection– a dog model study

“…This difference seemed to be maintained over the 3-year period of the study. Grandi et al (2012) found for 28 patients with partial edentulism rehabilitated with two implant supported immediate restoration that when definitive platform-switched abutment was connect at time of surgery, there was statistically less bone resorption than in the group where abutments were removed for impression taken. Thus, many studies presently aim and surely will focus in the future on determination of the clinical and technical solutions, which must be undertaken to prevent recession of soft and hard tissues.…”

Soft tissue behavior around dental implants placed in fresh extraction sockets and immediately restored in esthetic area: a preliminary short-term evaluation

“…However, other studies differ and show just a small number of cases with excellent clinical results 5,17 . In this study, the thickness of the surrounding soft tissues did not change significantly throughout the observation period (p=0.637).…”

“…Currently, a less-invasive 4 approach is practiced in implantology due to the better understanding of bone biology and the development of new implants with surfaces that produce a better and quicker bone and peri-implant soft margin response, accelerating the rehabilitation. Thus, implants with immediate loading can be used in the majority of total, partial and even single rehabilitations [3][4][5][6] .…”

“…Studies have focused on immediate rehabilitations in the anterior region, to help surgeons find the best approach when restoring single teeth, in order to produce a good aesthetic result for patients with gingival smile 3,[5][6][7][8] . The aesthetics of peri-implant tissues have improved with new implant designs, such as Morse type prosthetic connections, biomaterial grafting techniques, subepithelial connective tissue grafting 7 , pre-surgical CT scans 9 and surgical techniques developed for better bone and peri-implant soft margin biological responses 10 .…”