title: Immediate Loading of Fixed Complete Denture Prosthesis Supported by 4-8 Implants Placed Using Guided Surgery: A 5-Year Prospective Study on 66 Patients with 356 Implants.
abstract: BACKGROUND
  High primary implant stability is considered one of the main factors necessary for achieving predictable treatment outcomes with immediately loaded implant-supported screw-retained fixed complete denture prosthesis (FCDP).
  
  
  OBJECTIVE
  To evaluate the 5-year clinical and radiographic outcomes of immediately loaded implants placed in edentulous patients using computer-assisted template-guided surgery to support a FCDP.
  
  
  METHODS
  Patients in need to be restored with a FCDP in the mandible or maxilla were included in this prospective study/ and treated using computer-assisted template-guided surgery. Implant sites were prepared in order to achieve an insertion torque ranging between 35-45 Ncm in the mandible and 45-55 Ncm in the maxilla. A prefabricated screw-retained provisional prosthesis was delivered the day of the surgery. Outcomes were: implant and prosthesis cumulative survival rate (CSR), any complications, and peri-implant marginal bone loss (MBL).
  
  
  RESULTS
  Sixty-six patients received 356 implants to support 68 FCDPs. Each patient received 4-8 implants. Seven implants failed in six patients, resulting in a CSR of 98.1%. Two definitive prostheses failed resulting in CSR of 97.1%. Mean MBL of 1.62 ± 0.41 mm was reported at the 5-year follow-up. Five implants (1.4%) showed a mean mesio-distal peri-implant bone loss greater than 3.0 mm and received nonsurgical therapy.
  
  
  CONCLUSIONS
  immediately loaded implants placed in edentulous patients using computer-assisted template-guided surgery to support a FCDP is a valid treatment concept in the medium term follow-up, for edentulous patients.
authors.affiliation: Adjunct Professor, University of Sassari, Italy.
authors.forename: Silvio Mario
authors.initials: SM
authors.lastname: Meloni
authors.affiliation: Lecturer, University of Sassari, Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Tallarico
authors.affiliation: Private Practice, Arzachena, Italy.
authors.forename: Milena
authors.initials: M
authors.lastname: Pisano
authors.affiliation: Private Practice Tirana, Albania.
authors.forename: Erta
authors.initials: E
authors.lastname: Xhanari
authors.affiliation: Independent Research, Rome, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Canullo
mesh_terms: D000368:Aged; D003758:Dental Implantation, Endosseous / Q000379:methods*; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported / Q000379:methods*; D003824:Denture, Complete; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D021621:Imaging, Three-Dimensional; D057893:Immediate Dental Implant Loading / Q000379:methods*; D008297:Male; D008334:Mandible / Q000601:surgery; D008437:Maxilla / Q000601:surgery; D008875:Middle Aged; D011446:Prospective Studies; D025321:Surgery, Computer-Assisted / Q000379:methods*; D016896:Treatment Outcome
keywords: computer assisted surgery; guided surgery; immediate loading