TY - JOUR
T1 - A multicenter prospective evaluation of 2-months loaded Osseotite® implants placed in the posterior jaws
T2 - 3-Year follow-up results
AU - Testori, Tiziano
AU - Del Fabbro, Massimo
AU - Feldman, Sylvan
AU - Vincenzi, Gianpaolo
AU - Sullivan, Daniel
AU - Rossi, Renato
AU - Anitua, Eduardo
AU - Bianchi, Francesca
AU - Francetti, Luca
AU - Weinstein, Roberto L.
PY - 2002/4
Y1 - 2002/4
N2 - In this prospective study, the clinical outcome of 2-months loaded implants placed in the posterior jaws was evaluated after up to 3 years of functional loading. 405 Osseotite® implants with microtextured acid-etched surface were consecutively placed in 11 fully and 164 partially edentulous patients (mean age 53.5± 15.3 (S.D.) years) using a one-stage technique. 282 implants, supporting 154 restorations, were placed in the mandible, while 123 implants, supporting 75 restorations, were placed in the maxilla. A total of 99 single-tooth restorations, 119 short-span fixed bridges and 11 full-arch prostheses were applied. The mean time interval from surgery to connection of provisional restoration was 2.0±0.7 months. 9 failures were reported up to 3 years of follow-up; of these, 4 mandibular and 2 maxillary implants failed during the initial healing period (before prosthesis connection), while 3 mandibular implants failed after loading. No other complications occurred throughout the study. Life table analysis showed a cumulative survival rate of 97.5% for the mandible and 98.4% for the maxilla. Post-loading implant survival rate was 98.9% for the mandible and 100% for the maxilla. The excellent outcome of this interim report suggests that microtextured Osseotite® implants in the posterior jaws may safely bear a functional load applied 2 months after insertion. The results of the present study are particularly encouraging for implants placed in the maxilla, since both a significant reduction of the healing period compared to the 6 months suggested by the classical Brånemark protocol, and an excellent post-loading function may be achieved also in low quality bone.
AB - In this prospective study, the clinical outcome of 2-months loaded implants placed in the posterior jaws was evaluated after up to 3 years of functional loading. 405 Osseotite® implants with microtextured acid-etched surface were consecutively placed in 11 fully and 164 partially edentulous patients (mean age 53.5± 15.3 (S.D.) years) using a one-stage technique. 282 implants, supporting 154 restorations, were placed in the mandible, while 123 implants, supporting 75 restorations, were placed in the maxilla. A total of 99 single-tooth restorations, 119 short-span fixed bridges and 11 full-arch prostheses were applied. The mean time interval from surgery to connection of provisional restoration was 2.0±0.7 months. 9 failures were reported up to 3 years of follow-up; of these, 4 mandibular and 2 maxillary implants failed during the initial healing period (before prosthesis connection), while 3 mandibular implants failed after loading. No other complications occurred throughout the study. Life table analysis showed a cumulative survival rate of 97.5% for the mandible and 98.4% for the maxilla. Post-loading implant survival rate was 98.9% for the mandible and 100% for the maxilla. The excellent outcome of this interim report suggests that microtextured Osseotite® implants in the posterior jaws may safely bear a functional load applied 2 months after insertion. The results of the present study are particularly encouraging for implants placed in the maxilla, since both a significant reduction of the healing period compared to the 6 months suggested by the classical Brånemark protocol, and an excellent post-loading function may be achieved also in low quality bone.
KW - Early loading
KW - Life table analysis
KW - Multicenter
KW - Non-submerged implants
KW - Osseotite® implants
KW - Posterior mandible
KW - Posterior maxilla
KW - Survival rates
UR - http://www.scopus.com/inward/record.url?scp=19044364704&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=19044364704&partnerID=8YFLogxK
U2 - 10.1034/j.1600-0501.2002.130205.x
DO - 10.1034/j.1600-0501.2002.130205.x
M3 - Article
C2 - 11952735
AN - SCOPUS:19044364704
VL - 13
SP - 154
EP - 161
JO - Clinical Oral Implants Research
JF - Clinical Oral Implants Research
SN - 0905-7161
IS - 2
ER -