title: Immediate placement of implants into extraction sockets: implant survival.
abstract: In 51 patients (21 males and 30 females) aged 16 to 72 years, a total of 109 Nobelpharma implants were placed into extraction sockets immediately following extraction. The follow-up period varied between 1 and 67 months with a mean of 30.5 months. Osseointegration was determined by clinical stability, lack of symptoms, and lack of peri-implant pathology based on radiographic examination. The implant survival rate was 93.6%. Six implants were mobile at the abutment connection stage, and one was lost when function commenced. The success rate was 92.0% for implants replacing teeth extracted because of periodontitis and 95.8% for implants replacing teeth extracted for other reasons. Two other complications occurred: 12 cover screws perforated the gingiva during healing; and infection developed in five cases. The incidence of infection was higher in the periodontitis group. It was found that immediate placement of implants into extraction sockets is a safe and predictable procedure if certain guidelines are followed.
authors.affiliation: Department of Oral and Maxillofacial Surgery, University Hospital, Lund, Sweden.
authors.forename: B
authors.initials: B
authors.lastname: Rosenquist
authors.forename: B
authors.initials: B
authors.lastname: Grenthe
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000539:Alveolar Process / Q000000981:diagnostic imaging / Q000601:surgery; D000044:Dental Abutments; D003758:Dental Implantation, Endosseous / Q000009:adverse effects / Q000379:methods; D015921:Dental Implants / Q000009:adverse effects; D005260:Female; D005500:Follow-Up Studies; D005881:Gingiva / Q000293:injuries; D006801:Humans; D007568:Jaw / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D056948:Orthognathic Surgical Procedures; D016348:Osseointegration; D010518:Periodontitis / Q000382:microbiology / Q000601:surgery; D011475:Prosthesis Failure; D016459:Prosthesis-Related Infections / Q000209:etiology; D011859:Radiography; D014081:Tooth Extraction; D016388:Tooth Loss / Q000601:surgery; D014945:Wound Healing
chemical_list: D015921:Dental Implants