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A prospective study on implants installed with flapless‐guided surgery using the all‐on‐four concept in the mandible
Author(s) -
LandázuriDel Barrio R. A.,
Cosyn J.,
Paula W. N.,
Bruyn H.,
Marcantonio E.
Publication year - 2013
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/j.1600-0501.2011.02344.x
Subject(s) - medicine , dentistry , implant , mandible (arthropod mouthpart) , abutment , radiography , bridge (graph theory) , prosthesis , orthodontics , surgery , botany , civil engineering , engineering , biology , genus
Aim Clinical data are scarce on flapless‐guided surgery in the mandible using the all‐on‐four concept. In addition, limited documentation exists on the latter under immediate loading conditions with a pre‐fabricated implant bridge. The aim was to provide detailed documentation focusing on clinical and radiographic outcome and complications. Material and methods Sixteen systemically healthy non‐smoking patients (10 women, 6 men, average age 59 years) with sufficient bone volume in the mandible were operated via flapless‐guided surgery using the all‐on‐four concept. Clinical and radiographic data and complications were registered at 3, 6 and 12 months. Results The overall implant survival rate was 90% with a trend for higher failure of short implants ( P = 0.098). The mean bone level after 12 months of function was 0.83 mm with a maximum of 1.07 mm. Technical complications were common (15/16 patients). These mainly related to a misfit between the pre‐fabricated prosthesis and abutment(s) (13/16 patients). Conclusion If immediate loading of implants is pursued fabrication of the implant bridge should be based on actual impression of the implants at the time of surgery and not on their virtual position.