Immediate restoration of single tapered implants with nonoccluding provisional crowns: A 5-Year clinical prospective study

Lisa A. Lang, Ilser Turkyilmaz, Wendell A. Edgin, Ronald Verrett, Lily T. Garcia

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Background: Dental literature has limited number of publications regarding long-term outcome data of immediate restoration of single missing teeth with an implant-supported provisional crown. Purpose: This 5-year study evaluated hard and soft tissue responses to the immediate placement of single implant-supported provisional crowns. Materials and Methods: Twenty patients received one dental implant restored immediately with a provisional acrylic resin screw-retained crown. Crestal bone loss was evaluated from standardized periapical radiographs collected at 3-month intervals for the first 21 months followed by a 5-year evaluation. Historical controls acquired from available dental literature were used for comparison. Results: One implant failed within 2 months of surgical placement, presenting with pain and mobility. The remaining implants demonstrated no infection, pain, or radiolucencies. Nineteen implants were clinically immobile, osseointegrated, and asymptomatic at 21 months. At 5 years, one patient died, three patients were noncompliant, and 15 implants were evaluated as functional. Mean bone loss (MBL) at 1 year and 21 months was approximately 0.5±0.5mm and 0.70±0.26mm at 5 years. There was no statistically significant difference between MBLs at p<0.05. Conclusions: Immediate provisionalization of single dental implants compares favorably with conventional loading protocols. Long-term data suggest that immediate provisionalization of single dental implants is a viable treatment option.

Original languageEnglish (US)
Pages (from-to)248-258
Number of pages11
JournalClinical Implant Dentistry and Related Research
Issue number2
StatePublished - Apr 2014


  • Bone loss
  • Clinical outcomes
  • Dental implants
  • Immediate provisional

ASJC Scopus subject areas

  • Oral Surgery
  • Dentistry(all)


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