Long-term follow-up of single crowns supported by short, moderately rough implants-A prospective 10-year cohort study.

Rossi, Fabio; Lang, Niklaus Peter; Ricci, Emanuele; Ferraioli, Lorenzo; Baldi, Niccolò; Botticelli, Daniele (2018). Long-term follow-up of single crowns supported by short, moderately rough implants-A prospective 10-year cohort study. Clinical oral implants research, 29(12), pp. 1212-1219. Wiley-Blackwell 10.1111/clr.13386

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OBJECTIVES To evaluate prospectively the clinical and radiographic outcomes after ten years of short (6 mm) implants with a moderately rough surface supporting single crowns in the posterior region. MATERIAL AND METHODS Forty 6 mm modified sandblasted large-grit acid-etched (mod-SLA), soft tissue level implants were installed in the distal segments of 35 consecutive patients. After 6 weeks of healing, abutments were tightened, and single porcelain-fused-to-metal crowns were cemented. Implant survival, marginal bone loss, and clinical crown/implant ratio were evaluated at various time intervals up to 10 years after loading. RESULTS Two out of the 40 implants were lost before loading, one implant was lost after 7 years because of peri-implantitis. One patient with two implants died and was excluded from analysis. Two patients did not come at the 10-year follow-up and were considered as drop out (2 implants). The survival rate was 91.7% (n = 36). Thirty-three implants were available for marginal bone loss evaluation. A mean marginal bone loss after 10 years of function was 0.8 ± 0.7 mm. Between 5 and 10 years, the loss was 0.2 ± 0.4 mm. No technical complications were registered during the 10-year period. The clinical crown/implant ratio increased with time from 1.6 at the delivery of the prosthesis to 2.0 after 10 years of loading with no increase between 5 and 10 years. CONCLUSION Short (6 mm) implants with a moderately rough surface supporting single crowns in the posterior region and loaded after 6-7 weeks maintained full function for at least 10 years with low marginal bone resorption.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology
04 Faculty of Medicine > School of Dental Medicine > School of Dental Medicine, Periodontics Research

UniBE Contributor:

Lang, Niklaus Peter

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0905-7161

Publisher:

Wiley-Blackwell

Language:

English

Submitter:

Doris Burri

Date Deposited:

26 Jun 2019 09:53

Last Modified:

23 Oct 2019 18:19

Publisher DOI:

10.1111/clr.13386

PubMed ID:

30430655

Uncontrolled Keywords:

SLActive® surface dental implants implant length prospective cohort short implants

BORIS DOI:

10.7892/boris.125326

URI:

https://boris.unibe.ch/id/eprint/125326

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