Osteogenic effect of low-intensity pulsed ultrasound and whole-body vibration on peri-implant bone. An experimental in vivo study

Kenta Shobara, Toru Ogawa, Aya Shibamoto, Makiko Miyashita, Akiyo Ito, Ratri M. Sitalaksmi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Objectives: The aims of this study were (i) to compare the osteogenic impact of low-intensity pulsed ultrasound (LIPUS) and low-magnitude high-frequency (LMHF) loading achieved with whole-body vibration (WBV) on peri-implant bone healing and implant osseointegration in rat tibiae, and (ii) to examine their combined effect on these processes. Material and methods: Titanium implants were inserted in the bilateral tibiae of 28 Wistar rats. Rats were randomly divided into four groups: LIPUS + WBV, LIPUS, WBV, and control. LIPUS was applied to the implant placement site for 20 min/day on 5 days/week (1.5 MHz and 30 mW/cm2). WBV was applied for 15 min/day on 5 days/week (50 Hz and 0.5 g). In the LIPUS + WBV group, both stimuli were applied under the same stimulation conditions as in the LIPUS and WBV groups. After 4 weeks of treatment, peri-implant bone healing and implant osseointegration were assessed using removal torque (RT) tests, micro-CT analyses of relative gray (RG) value, and histomorphometrical analyses of bone-to-implant contact (BIC) and peri-implant bone formation (BV/TV). Results: The LIPUS + WBV group had significantly greater BIC than the WBV and control groups. Although there were no significant intergroup differences in RT, RG value, and BV/TV, these variables tended to be greater in the LIPUS + WBV group than the other groups. Conclusions: The combination of LIPUS and LMHF loading may promote osteogenic activity around the implant. However, further study of the stimulation conditions of LIPUS and LMHF loading is necessary to better understand the osteogenic effects and the relationship between the two stimuli.

Original languageEnglish
Pages (from-to)641-650
Number of pages10
JournalClinical Oral Implants Research
Volume32
Issue number5
DOIs
Publication statusPublished - 2021 May

Keywords

  • low-intensity pulsed ultrasound (LIPUS)
  • low-magnitude high-frequency loading
  • osseointegration
  • osteogenesis
  • prostheses and implants

ASJC Scopus subject areas

  • Oral Surgery

Fingerprint

Dive into the research topics of 'Osteogenic effect of low-intensity pulsed ultrasound and whole-body vibration on peri-implant bone. An experimental in vivo study'. Together they form a unique fingerprint.

Cite this