title: Titanium-zirconium alloy narrow-diameter implants (Straumann Roxolid(®)) for the rehabilitation of horizontally deficient edentulous ridges: prospective study on 18 consecutive patients.
abstract: OBJECTIVE
  (i) To evaluate the survival and success rates of the new Roxolid narrow diameter implant placed in horizontally deficient ridges; and (ii) to evaluate the incidence of prosthetic complications.
  
  
  METHODS
  In a 24-month period (2009-2010) 18 partially or totally edentulous patients received 51 Straumann Roxolid (13 tissue level, 38 bone level) implants. Prosthetic loading of implants was either immediate (four implants; one patient) or delayed (2-12 months after placement; 47 implants; 17 patients). The patients were rehabilitated with either fixed (16 patients; 45 implants) or removable (two patients; six implants) prostheses.
  
  
  RESULTS
  All implants successfully achieved osseointegration and all patients completed the planned prosthetic rehabilitation. Peri-implant bone resorption values ranged from 0 to 1 mm at the end of the observation period (range: 3-19 months). Implant survival and success rates were therefore 100%. No prosthetic complications occurred and all implants are still in function; therefore the prosthesis success rate was 100%.
  
  
  CONCLUSIONS
  Narrow diameter implants fabricated with the new titanium-zirconium alloy were demonstrated to be reliable in supporting both fixed and removable prosthetic rehabilitations in horizontally deficient ridges. Implant survival, peri-implant bone resorption, and prosthetic complication rates were consistent with those reported in the literature for standard diameter implants placed in non-deficient edentulous ridges.
authors.affiliation: Unit of Oral Surgery, Department of Medicine, Surgery, and Dentistry, San Paolo Hospital University of Milan Via Beldiletto 1/3, Milan, Italy. matteo.chiapasco@unimi.it
authors.forename: M
authors.initials: M
authors.lastname: Chiapasco
authors.forename: P
authors.initials: P
authors.lastname: Casentini
authors.forename: M
authors.initials: M
authors.lastname: Zaniboni
authors.forename: E
authors.initials: E
authors.lastname: Corsi
authors.forename: T
authors.initials: T
authors.lastname: Anello
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003722:Dental Alloys / Q000737:chemistry; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D005260:Female; D006801:Humans; D057893:Immediate Dental Implant Loading; D007575:Jaw, Edentulous / Q000534:rehabilitation; D007576:Jaw, Edentulous, Partially / Q000534:rehabilitation; D008297:Male; D008875:Middle Aged; D016348:Osseointegration; D011446:Prospective Studies; D013524:Surgical Flaps; D014025:Titanium; D015040:Zirconium
chemical_list: D003722:Dental Alloys; D015921:Dental Implants; D015040:Zirconium; D014025:Titanium