Immediate provisionalization of single-tooth implants in fresh-extraction sites at the maxillary esthetic zone: up to 6 years of follow-up

Eitan Mijiritsky, Ofer Mardinger, Ziv Mazor, Gavriel Chaushu
Implant Dentistry 2009, 18 (4): 326-33

AIM: 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.

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