title: Implant-retained mandibular overdentures with ITI implants.
abstract: This prospective study has been designed to compare the results of immediate and delayed loading of implant-retained mandibular overdentures after a 2-year follow-up. Twenty patients have been randomly divided into two groups. Group 1 patients (test group) received four ITI implants in the intraforaminal area of the mandible. Octa abutments were immediately screwed on implants; 2 days after surgery, the implants were rigidly connected with a U-shaped Dolder gold bar and loaded with an overdenture. Group 2 patients (control group) received, in the same area, the same type and number of implants, which were left to heal according to the standard protocol. At 3-4 months, Octa abutments were screwed on the implants and the same prosthetic procedure of the test group was applied. The minimum follow-up period lasted 2 years, with recall appointments at 2 weeks, 1, 3, 6 months, 1 year and every following year postoperatively, evaluating: MPI, MBI, PD, Periotest and radiographic peri-implant bone resorption. Success criteria according to Albrektsson et al. were used. Only one implant out of the 40 of group 2 failed, whereas none failed in group 1. No statistical difference of the clinical parameters evaluated was noticed in the two groups. Therefore, immediate loading of implants, if connected with a U-shaped bar, can provide the same results of the 'traditional' technique as far as osseointegration and short-term survival rates of implants are concerned. Moreover, this method significantly shortens the treatment period, thus increasing patient satisfaction.
authors.affiliation: Department of Medicine, Surgery and Dentistry, University of Milano - Milan, Italy. Eugenio.Romeo@unimi.it
authors.forename: Eugenio
authors.initials: E
authors.lastname: Romeo
authors.forename: Matteo
authors.initials: M
authors.lastname: Chiapasco
authors.forename: Andrea
authors.initials: A
authors.lastname: Lazza
authors.forename: Paolo
authors.initials: P
authors.lastname: Casentini
authors.forename: Marco
authors.initials: M
authors.lastname: Ghisolfi
authors.forename: Marco
authors.initials: M
authors.lastname: Iorio
authors.forename: Giorgio
authors.initials: G
authors.lastname: Vogel
mesh_terms: D000328:Adult; D000368:Aged; D016301:Alveolar Bone Loss / Q000145:classification / Q000000981:diagnostic imaging; D001862:Bone Resorption / Q000000981:diagnostic imaging; D000044:Dental Abutments; D015921:Dental Implants; D003774:Dental Plaque Index; D019094:Dental Prosthesis, Implant-Supported; D019232:Dental Restoration Failure; D003826:Denture, Complete, Lower; D003828:Denture, Overlay; D005260:Female; D005500:Follow-Up Studies; D005884:Gingival Hemorrhage / Q000145:classification; D006801:Humans; D007575:Jaw, Edentulous / Q000000981:diagnostic imaging / Q000534:rehabilitation / Q000601:surgery*; D008297:Male; D008334:Mandible / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D016348:Osseointegration; D010514:Periodontal Pocket / Q000145:classification; D011446:Prospective Studies; D011859:Radiography; D013223:Statistics as Topic; D018709:Statistics, Nonparametric; D016019:Survival Analysis; D013997:Time Factors; D016896:Treatment Outcome; D016474:Weight-Bearing; D014945:Wound Healing
chemical_list: D015921:Dental Implants