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Volume 10 , Issue 4
July/August 1995

Pages 466-473

Maxillary and Mandibular Titanium Implants 1 Year After Surgery: Histologic Examination in a Cadaver

Michael D. Rohrer, DDS, MS/Ronald A. Bulard, DDS/Manford K. Patterson, Jr, PhD

PMID: 7672850

Nondecalcified histologic sections (from a cadaver) of 12 IMTEC implants in four jaw quadrants 1 year after surgery showed significant osseointegration. Microscopically, no apparent difference was observed in new bone growth and osseointegration in those implants placed in the maxilla or mandible, or between titanium plasma-spray–coated (TPS) implants and TPS-treated implants coated with hydroxyapatite. Areas in which implants were placed through the bony floor of the maxillary sinus showed new bone growth above the normal level of the floor of the sinus around the implants and into mechanical retention holes. Small penetrations of the maxillary sinus membrane or the lingual plate of the mandible did not affect the function of the implants, nor did they cause any symptoms. A vertical component of soft tissue around the cervical part of the osseointegrated implants, noted in histologic sections to be as much as 5 mm below the crest of the alveolar bone in at least one area, was not discernible radiographically even when 5-mm-thick sections of bone containing the implants were radiographed. (Int J Oral Maxillofac Implants 1995;10:466–473)

Key words: cadaver, dental implants, human, osseointegration, postmortem

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