Secondarily stabilized dental implants: an alternative to sinus grafting--early clinical results of 63 consecutively placed implants.
OBJECTIVE
A standard dental implant modified with an apical cross-screw was studied clinically in the posterior maxilla in a trial of 63 sinus-penetrating implants.


METHODS
Twenty-five patients who had cross-screw implants placed in the atrophic posterior maxilla were followed for up to 3 years.


RESULTS
Of 63 implants placed, 5 implants failed over a 4-year study period for a 92.1% success rate. Despite the implant body penetrating into the sinus cavity, no long-term complication resulted.


CONCLUSIONS
Threaded dental implants that were stabilized secondarily with a cross-screw maintained stability and did not disturb sinus cavity health over a 3-year period.
Oral and Maxillofacial Surgery Department, Poriya Governmental Hospital, Tiberias, Israel. zvi@lasters.co.il
Zvi
Z
Laster
Ole T
OT
Jensen
D016301:Alveolar Bone Loss / Q000601:surgery; D016025:Bone Transplantation; D003758:Dental Implantation, Endosseous / Q000295:instrumentation*; D015921:Dental Implants; D017267:Dental Prosthesis Design; D017268:Dental Prosthesis Retention / Q000295:instrumentation*; D019232:Dental Restoration Failure; D003799:Dental Stress Analysis / Q000379:methods; D020342:Finite Element Analysis; D006801:Humans; D007576:Jaw, Edentulous, Partially / Q000534:rehabilitation*; D008437:Maxilla / Q000601:surgery; D008443:Maxillary Sinus / Q000601:surgery*; D008963:Molar; D016896:Treatment Outcome
D015921:Dental Implants