In this study, 40 dental implants will be installed in osteotomy sites for patients with single or multiple missing tooth or teeth based on radiographic findings (CBCT).~The primary stability will be measured immediately after implant installation using three devices :~Osstell : based on resonance frequency analysis (RFA).~Periotest: based on damping effect.~AnyCheck: based on tapping motion. Secondary stability will be measured after 12 weeks using the same devices mentioned above.
A prospective observational study guided by the guidelines of Strengthening The Reporting Of Observational Study in Epidemiology (STROBE) in 2014, that will be conducted to evaluate implant stability using three devices; Osstell®, Peiotest® and AnyCheck® and comparing the results.