title: Computer-assisted implant surgery and immediate loading in edentulous ridges with dental fresh extraction sockets. Two years results of a prospective case series study.
abstract: BACKGROUND
  The two-stage surgical approach for implant placement first documented in 1977 by Brånemark, represents today the most used protocol for placing implants.
  
  
  OBJECTIVE
  Aim of this prospective case series study was to compare the clinical and radiological performance of 12 edentulous jaws treated with of a modified prosthetic and surgical protocol for 3D software planning, guided surgery, immediate loading of implants inserted in edentulous jaws and extraction sockets and restored with Cad-Cam Zirconia and titanium full arch frameworks.
  
  
  METHODS
  This work was designed as a prospective case series study. Twelve patients have been consecutively rehabilitated with an immediately loaded implant supported fixed full prosthesis. A total of 72 implants, Nobel Replace Tapered Groovy; Nobel Biocare AB, Goteborg, Sweden) 26 of which were inserted in fresh extraction sockets, were inserted. Outcome measures were implants survival, radiographic marginal bone-levels and bone remodeling, soft tissue parameters and complications.
  
  
  RESULTS
  All patients reached 24 months follow-up, and no patients dropped out from the study. The cumulative survival rate was 100%; after 24 months mean marginal bone remodelling value was: 1.35 ± 0.25, mean PPD value was 2.75 ± 0.40 mm and mean BOP value was 3.8% ± 1.8%. Only minor prosthetic complications were recorded.
  
  
  CONCLUSIONS
  These data seem to validate this surgical and prosthetic protocol with valid results when applied in selected cases.
authors.affiliation: Maxillofacial Surgery Department and Dentistry Department, University Hospital of Sassari, Italy. piombino@unina.it.
authors.forename: S M
authors.initials: SM
authors.lastname: Meloni
authors.forename: G
authors.initials: G
authors.lastname: De Riu
authors.forename: M
authors.initials: M
authors.lastname: Pisano
authors.forename: G
authors.initials: G
authors.lastname: Dell'aversana Orabona
authors.forename: P
authors.initials: P
authors.lastname: Piombino
authors.forename: G
authors.initials: G
authors.lastname: Salzano
authors.forename: D
authors.initials: D
authors.lastname: Quarato
authors.forename: E
authors.initials: E
authors.lastname: Riccardi
authors.forename: E
authors.initials: E
authors.lastname: Belli
authors.forename: C
authors.initials: C
authors.lastname: Ungari
mesh_terms: D000328:Adult; D000368:Aged; D016723:Bone Remodeling / Q000502:physiology; D003757:Dental Implantation / Q000379:methods*; D015921:Dental Implants; D005500:Follow-Up Studies; D006801:Humans; D007575:Jaw, Edentulous; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D025321:Surgery, Computer-Assisted / Q000379:methods*; D013997:Time Factors; D014025:Titanium; D014081:Tooth Extraction; D020390:Tooth Socket; D016896:Treatment Outcome
chemical_list: D015921:Dental Implants; D014025:Titanium