title: Nasal defects and osseointegrated implants: UCLA experience.
abstract: A clinical study of 23 craniofacial implants placed in 11 nasal defects was conducted over a 7-year period. Implant-retained nasal prostheses were fabricated, implant success rate was determined, and the soft tissue responses were recorded at 6-month intervals. No data were gathered on two implants because of patient death. The implant success rate was 71.4% (15/21) but varied significantly by anatomic site. The implant success rate in the glabella was 0% (0/4), whereas the success rate in the anterior nasal floor was 88.1% (15/17). All implant failures occurred within the first year of loading. A five-point scale was used to record the health of the peri-implant soft tissues, and the patients were followed up from 6 to 74 months. The unit of measure was a visit/site, and a unit was assigned for each instance an implant site was evaluated. Evaluations were conducted at 6-month intervals for a total of 76 visit/sites for the study period. The results revealed that 85.5% (65/76) of the visit/sites demonstrated an absence of inflammation; 10.5% (8/76) of the visit/sites demonstrated slight redness; 1.3% (1/76) demonstrated peri-implant red and moist tissues; 2.6% (2/76) demonstrated granulation tissue associated with the implants; and 0% (0/76) demonstrated infection of the peri-implant soft tissues. Severe soft tissue reactions around implants placed in the anterior nasal floor are rare.
authors.affiliation: University of California, Los Angeles, School of Dentistry, USA.
authors.forename: R D
authors.initials: RD
authors.lastname: Nishimura
authors.forename: E
authors.initials: E
authors.lastname: Roumanas
authors.forename: P K
authors.initials: PK
authors.lastname: Moy
authors.forename: T
authors.initials: T
authors.lastname: Sugai
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005549:Foreign-Body Reaction / Q000209:etiology; D005624:Frontal Bone / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D009296:Nasal Cavity / Q000601:surgery; D009666:Nose; D009667:Nose Deformities, Acquired / Q000534:rehabilitation*; D016348:Osseointegration; D019736:Prostheses and Implants / Q000009:adverse effects; D011475:Prosthesis Failure; D016459:Prosthesis-Related Infections / Q000209:etiology; D016896:Treatment Outcome