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Updated: Jun 20, 2026

Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
Published on: October 18, 2021
Placement of immediate implants and a fixed provisional restoration to replace the four mandibular incisors
Richard B Smith1, Dennis P Tarnow, Marion Brown
1Department of Periodontology and Implant Dentistry, Post-Graduate Division, New York University College of Dentistry, New York, New York, USA.
Abstract:
A new approach to the replacement of four mandibular incisors with localized, chronic, severe periodontitis is proposed in this clinical report. Their replacement with immediately placed implants and a nonocclusally loaded provisional restoration is a simple, predictable, and successful treatment modality. Data from 10 consecutive clinical cases are presented, and a 100% implant survival rate is reported for a 6-year period of follow-up. Treatment outcomes for this approach compare favorably with alternative treatment options and should be considered an important primary treatment option for most patients requiring the replacement of the four mandibular incisors.
