The clinical outcomes of 234 spiral family implants.
OBJECTIVE
Spiral family implants (SFIs) are a new type of implant fixture with a conical internal helix and a variable thread design. The aim of this retrospective study was to evaluate the clinical outcomes of a series of SFIs.


METHODS
A total of 234 SFIs were placed in 86 patients (55 females and 31 males, median age 53 years) during the period between May 2004 and November 2007. The mean follow-up was 13 months. Several host, surgery, and implant-related factors were investigated, and the Kaplan Meier algorithm and the Cox regression were used to detect variables associated with the clinical outcome.


RESULTS
Only nine out of 234 implants were lost (i.e., survival rate (SVR) of 96.2%) and no differences were detected among the studied variables.


CONCLUSIONS
SFIs have a high SVR similar to those reported in previous studies on different implant types.


CONCLUSIONS
SFIs demonstrated a very high primary stability which offers the potential for use of a specific implant device for immediate loading. However, additional studies are necessary to verify their outcome on the medium/long period.
Danza
Matteo
M
School of Dentistry, University of Chieti, Chieti, Italy. dama.t@fastwebnet.it
Fromovich
Ophir
O
Guidi
Riccardo
R
Carinci
Francesco
F
D003758:Dental Implantation, Endosseous / Q000295:instrumentation* / Q000379:methods; D019250:Dental Implants, Single-Tooth; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000295:instrumentation / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008334:Mandible; D008437:Maxilla; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D012189:Retrospective Studies