Factors Affecting Implant Mobility at Placement and Integration of Mobile Implants at Uncovering
- 1 December 1998
- journal article
- clinical trial
- Published by Wiley in The Journal of Periodontology
- Vol. 69 (12), 1404-1412
- https://doi.org/10.1902/jop.1998.69.12.1404
Abstract
This study examined 1) factors that contributed to implant stability at placement and 2) the likelihood for an implant that was mobile at placement to osseointegrate. Eighty-one (3.1%) of 2,641 implants placed by the Dental Implant Clinical Research Group between 1991 and 1995 were found to be mobile at placement. Seventy-six (93.8%) of the 81 mobile implants were integrated at uncovering compared to 97.5% for the 2,560 immobile implants. Variables that influenced mobility at placement included patient age, implant design and material, anterior-posterior jaw location, bone density, and use of a bone tap. Hydroxyapatite (HA)-coated implants were slightly more likely to be mobile at placement (P = 0.324) than non-hydroxypatite (HA)-coated implants. Of the 54 HA-coated implants that were mobile at placement, all (100%) integrated, while only 17 (81.5%) of the 22 mobile non-HA-coated implants integrated (P = 0.003). Mean electronic mobility testing device values (PTVs) at uncovering for all implants mobile or immobile at placement that integrated were -2.9 and -3.6 respectively. PTVs for HA-coated implants that were mobile (-3.5 PTV) or immobile (-4.0 PTV) at placement differed by 0.5 PTV, whereas non-HA-coated implants exhibited a greater difference of 1.2 PTVs at uncovering. HA-coated implants, regardless of mobility at placement, integrated more frequently and exhibited greater stability than non HA-coated implants.Keywords
This publication has 18 references indexed in Scilit:
- PERIOTEST VALUES OF DENTAL IMPLANTS IN THE FIRST 2 YEARS AFTER SECOND-STAGE SURGERYImplant Dentistry, 1997
- Influence of initial implant mobility on the integration of titanium implants. An experimental study in rabbits.Clinical Oral Implants Research, 1996
- RALPH V. McKINNEY, JR., ANNUAL AWARDImplant Dentistry, 1996
- EVALUATION OF THE SURFACE INTEGRITY OF HYDROXYAPATITE-COATED THREADED DENTAL IMPLANTS AFTER INSERTIONImplant Dentistry, 1996
- REMODELING DYNAMICS OF BONE SUPPORTING RIGIDLY FIXED TITANIUM IMPLANTS: A HISTOMORPHOMETRIC COMPARISON IN FOUR SPECIES INCLUDING HUMANSImplant Dentistry, 1995
- PATIENT DEMOGRAPHICS AND IMPLANT SURVIVAL AT UNCOVERINGImplant Dentistry, 1994
- AN EVALUATION OF THE PERIOTEST SYSTEM. PART IImplant Dentistry, 1992
- The Excessive Loss of Branemark Fixtures in Type IV Bone: A 5‐Year AnalysisThe Journal of Periodontology, 1991
- Hydroxyapatite coating enhances fixation of porous coated implants: A comparison in dogs between press fit and noninterference fitActa Orthopaedica, 1990
- Intra-Osseous Anchorage of Dental Prostheses:I. Experimental StudiesScandinavian Journal of Plastic and Reconstructive Surgery, 1969