title: Immediate postextraction implant placement with root-analog stepped implants: surgical procedure and statistical outcome after 6 years.
abstract: The present study investigated 124 stepped-screw implants (gritblasted and acid-etched surface) placed in 104 patients immediately after tooth extraction or implant explantation and followed between August 1990 and December 1996. Implants of varying diameters and lengths were used to cover a wide range of indications in both the maxilla and mandible; 68% of the implants supported single-tooth replacements. The study parameters included Plaque Index, Gingival Index, probing depth, Periotest values, and peri-implant bone loss. Statistical analysis according to Kaplan-Meier revealed a 97% survival rate.
authors.affiliation: Department of Prosthodontics, Dental School, University of Tübingen, Germany. german.gomez-roman@med.uni-tuebingen.de
authors.forename: G
authors.initials: G
authors.lastname: Gomez-Roman
authors.forename: M
authors.initials: M
authors.lastname: Kruppenbacher
authors.forename: H
authors.initials: H
authors.lastname: Weber
authors.forename: W
authors.initials: W
authors.lastname: Schulte
mesh_terms: D000134:Acid Etching, Dental; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016301:Alveolar Bone Loss / Q000145:classification / Q000000981:diagnostic imaging; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D019250:Dental Implants, Single-Tooth; D003774:Dental Plaque Index; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D019232:Dental Restoration Failure; D003945:Diagnosis, Oral / Q000295:instrumentation; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008334:Mandible / Q000000981:diagnostic imaging / Q000601:surgery; D008437:Maxilla / Q000000981:diagnostic imaging / Q000601:surgery; D008875:Middle Aged; D010474:Percussion / Q000295:instrumentation; D010512:Periodontal Index; D010514:Periodontal Pocket / Q000145:classification; D011859:Radiography; D013223:Statistics as Topic; D013499:Surface Properties; D016019:Survival Analysis; D014081:Tooth Extraction; D016896:Treatment Outcome
chemical_list: D015921:Dental Implants