Open AccessOsseointegration under Immediate Loading: Biomechanical Stress–Strain and Bone Formation–Resorption
Author(s) -
Hiroyuki Kawahara,
Dai Kawahara,
Masahide Hayakawa,
Yoshihisa Tamai,
Tokio Kuremoto,
Seiji Matsuda
Publication year - 2003
Publication title -
implant dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.538
H-Index - 65
eISSN - 1538-2982
pISSN - 1056-6163
DOI - 10.1097/01.id.0000034394.75768.e3
Subject(s) - osseointegration , bone resorption , resorption , dentistry , beagle , implant , biomechanics , stress fractures , materials science , strain (injury) , bone remodeling , stress (linguistics) , medicine , biomedical engineering , orthodontics , surgery , anatomy , pathology , linguistics , philosophy
During the past 10 years, clinicians have used two-piece implants as a one-piece system for immediate loading to accomplish early recovery for function and esthetics. The statistical analysis by the Institute of Clinical Materials demonstrates high survival rates of 92.3 +/- 8.3%. Animal experiments of beagle dogs have been carried out to analyze successful conditions of immediate loading according to the dependency of bone formation--resorption upon the biomechanical stress--strain of bone. Histometric investigations clarified that the micromotion of less than 30 microns at the implant-bone interface did not interfere with the osteogenesis and new bone growth at the implant-bone interface. Bone formation and resorption are discussed from the standpoint of minimum effective strain on living bone.