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Volume 12 , Issue 1
January/February 1997

Pages 65-73

Osseointegration of Rough Acid-Etched Implants: One-Year Follow-up of Placement of 100 Minimatic Implants

De Leonardis/Garg/Pecora/Andreana

PMID: 9048456

Between January 1992 and October 1992, 100 Minimatic screw implants made of titanium alloy with rough acid-etched surfaces were placed in 63 consecutive partially edentulous patients. At second-stage (uncovering) surgery performed after a 4- to 6-month healing period, none of the implants showed any signs of mobility, peri-implant infection, or bone loss. After an additional healing phase averaging 2 weeks, the patients were restored with fixed prostheses. Patients were reexamined every 3 months for 1 year, with all 63 patients available for evaluation during this period. Periapical radiographs were taken preoperatively, immediately after surgery, and at 6 and 12 months after implantation. There were no signs of peri-implant radiolucencies in any of the implants, and alveolar bone loss was less than 1 mm on average 1 year after implantation. Based on Plaque Index, sulcular bleeding index, pocket probing depth, attachment level, width or keratinized mucosa, and hand-tested mobility, 99 implants were considered successful and 1 (which developed per i-implant infection) was considered a failure. Study results substantiate other reports that implants with a rough surface can yield predictable good results.

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