Clinical outcome after 8 to 10 years of immediately restored single implants placed in extraction sockets and healed ridges

Stefanie Raes, Jan Cosyn, Anabel Noyelle, Filiep Raes, Hugo De Bruyn

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Recent systematic reviews point to the scarcity of single implants followed up longer than 5 years, and the incidence of biologic/technical complications is underreported. This prospective follow-up study documents 8- to 10-year clinical outcomes of immediately restored single implants in extraction sockets (immediate implant treatment [IIT]) and healed bone (conventional implant treatment [CIT]). Patients received a single, chemically modified, moderately rough titanium implant and a provisional crown on the day of surgery in the anterior maxilla (second premolar to second premolar). Provisional crowns were replaced by permanent crowns after 10 weeks. Implant survival, complications, crestal bone changes, plaque score, probing depth, and bleeding on probing were regularly recorded up to 10 years of followup. Of 16 patients who underwent IIT, 11 could be evaluated after 8 years. Of the 23 patients who received an implant in healed bone, 18 were finally evaluated. One implant failed in the IIT group at 12 weeks; all implants survived in the CIT group; 38% of the patients experienced at least one complication; 10% had one or more biologic complications, whereas 31% experienced one or more technical complications. There were no significant changes in crestal bone level from 1 to ≥ 8 years of follow-up for either group or between IIT and CIT at any time point (P ≥ .129). Only 6.9% (2 of 29) implants demonstrated progressive bone loss > 2 mm combined with pockets ≥6 mm. Immediately restored single implants in extraction sockets and healed ridges demonstrate good long-term outcomes in terms of implant survival, crestal bone loss, and peri-implant health. However, biologic and especially technical complications are common.
Original languageEnglish
Pages (from-to)337-345
JournalInternational Journal of Periodontics and Restorative Dentistry
Volume38
Issue number3
DOIs
Publication statusPublished - 2018
Externally publishedYes

Funding

This study was supported by departmen tal funds and by Dentsply Sirona Implants, Mölndal, Sweden. Prof De Bruyn has on behalf of the university a research and educational collaboration agreement with Dentsply Sirona Implants. The authors reported no other conflicts of interest related to this study.

FundersFunder number
DENTSPLY Implants

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