Immediate provisionalization of single-tooth implants in fresh-extraction sites at the maxillary esthetic zone: up to 6 years of follow-up.
OBJECTIVE
Numerous studies demonstrate successful immediate loading of dental implants. The purpose of this study was to evaluate the long-term survival of single-tooth implants immediately placed in fresh extraction sites at the anterior maxilla with immediate infraocclusion-provisional restorations and nonfunctional immediately loading.


METHODS
A total of 24 implants were placed in 16 patients. The fixed provisional restorations were connected to a prefabricated plastic abutment. Occlusal contacts were avoided. Follow-up starting at implantation day ranged from 24 to 72 months with a mean of 40.7 months.


RESULTS
One implant failed 1 month after placement due to the unscrewing of a temporary abutment that resulted in implant overload. Overall implant survival rate resulted in 95.8%. The mean marginal bone loss increased by 0.9 +/- 1.1 mm. starting from implant placement.


CONCLUSIONS
Within the limits of this study, the data indicate that nonfunctional immediate loading of single-tooth implants placed in fresh extraction sites in the anterior maxilla can result in successful implant integration and stable peri-implant conditions up to 6 years.
Mijiritsky
Eitan
E
Department of Oral and Maxillofacial Surgery, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv, Israel.
Mardinger
Ofer
O
Mazor
Ziv
Z
Chaushu
Gavriel
G
D000328:Adult; D016301:Alveolar Bone Loss / Q000209:etiology; D003442:Crowns; D003758:Dental Implantation, Endosseous / Q000009:adverse effects / Q000379:methods*; D019250:Dental Implants, Single-Tooth / Q000009:adverse effects; D017268:Dental Prosthesis Retention; D019094:Dental Prosthesis, Implant-Supported / Q000009:adverse effects; D019232:Dental Restoration Failure; D003794:Dental Restoration, Temporary; D003799:Dental Stress Analysis; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor; D008297:Male; D008437:Maxilla; D008875:Middle Aged; D016348:Osseointegration; D013997:Time Factors; D020390:Tooth Socket / Q000601:surgery*; D055815:Young Adult