Effect of location on primary stability and healing of dental implants

Alberto Monje, Fernando Suarez, Carlos Andrés Garaicoa, Florencio Monje, Pablo Galindo-Moreno, Agustín García-Nogales, Hom Lay Wang

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


PURPOSE: To study implant primary stability and bone healing using resonance frequency analysis in different anatomical locations 4 months after placement. MATERIAL AND METHODS: Fifty-six partially edentulous patients restored by dental implants were included. Overall, 214 implants were placed without bone or soft tissue augmentation. All implants were placed with the same drilling protocol and implant insertion torque (35-40 N·cm). RESULTS: The mean implant stability quotient (ISQ) value at baseline for all the locations was 75.4 mm (95% confidence interval, 74.20-76.59 mm). Higher ISQ values were found in the mandible. A significant difference between ISQ values of each location (P < 0.001) was identified. The mean values obtained showed an increase (3.4%) in all the locations, being greater in the posterior lower and upper maxillae (3.8%), whereas for the anterior maxilla, it was the least (1.5%) 4 months after healing. This increase was statistically significant in the posterior upper and lower maxillae (P < 0.001). CONCLUSION: Higher implant stability was found in mandible compared with maxilla in both periods, immediately after insertion and 4 months later. Therefore, according to ISQ values, restoring implants immediately after insertion or after a healing period of 4 months represents safe time points.

Original languageEnglish (US)
Pages (from-to)69-73
Number of pages5
JournalImplant dentistry
Issue number1
StatePublished - Feb 2014
Externally publishedYes


  • implant stability
  • implant stability quotient
  • osseointegration
  • resonance frequency analysis

ASJC Scopus subject areas

  • Oral Surgery


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