title: An intra-oral hydraulic system for controlled loading of dental implants.
abstract: This study reports a method for controlling loads on an in vivo dental implant and its application for the investigation of early loading versus delayed loading of dental implants. The method was developed for the purpose of studying an ongoing hypothesis that amounts to bone loss around dental implants are related to mechanical-mediated adaptation of the alveolar bone. Using a customized intra-oral hydraulic system, the daily loading over a dental implant has been completed and recorded for six Sinclair swine. Each pig had a 5-month duration implant loading. During the experiments (loading), no analgesic treatment was supplied. The mean of the in vivo daily loadings was confirmed through an in vitro bench test after each animal was euthanized. Variations of the averaged loading input among the six animals were smaller than 10%. Preliminary data produced by the model suggests that cervical bone loss is less for early loading than for delayed loading. The current system is expected to provide a useful load control model for the study of alveolar bone adaptation around dental implants in relation to various loadings.
authors.affiliation: Department of Oral Science, University of Minnesota, MDRCBB, 16-212 Moos Tower, 515 Delaware Street SE, Minneapolis, MN 55455, USA. koxxx007@tc.umn.edu
authors.forename: Ching-Chang
authors.initials: CC
authors.lastname: Ko
authors.forename: James Q
authors.initials: JQ
authors.lastname: Swift
authors.forename: Ralph
authors.initials: R
authors.lastname: DeLong
authors.forename: William H
authors.initials: WH
authors.lastname: Douglas
authors.forename: Young Il
authors.initials: YI
authors.lastname: Kim
authors.forename: Kai-Nan
authors.initials: KN
authors.lastname: An
authors.forename: Chih-Han
authors.initials: CH
authors.lastname: Chang
authors.forename: Heng-Li
authors.initials: HL
authors.lastname: Huang
mesh_terms: D000818:Animals; D016723:Bone Remodeling; D003757:Dental Implantation / Q000295:instrumentation* / Q000379:methods; D015921:Dental Implants; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005246:Feedback; D007568:Jaw / Q000000981:diagnostic imaging / Q000503:physiopathology*; D056948:Orthognathic Surgical Procedures; D011859:Radiography; D012016:Reference Values; D012680:Sensitivity and Specificity; D013314:Stress, Mechanical; D013552:Swine; D016474:Weight-Bearing
chemical_list: D015921:Dental Implants