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Updated: Jun 13, 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
Ridge expansion and immediate implant placement in the esthetic zone
Lakshman Dene1, Spyridon Condos
1Surgical & Prosthetic Implant Program, New York University College of Dentistry, New York, New York, USA. lakshdene@hotmail.com
Abstract:
Implant placement and tooth restoration in the maxillary esthetic zone is challenging. In the case reported here, the treatment site was tooth # 8, which had been extracted one year previously. Available bone in three dimensions was evaluated by computerized tomography. The bucco-lingual bone width at the crest was 3 mm to 4 mm wide, an inadequate width for implant placement. Ridge expansion was accomplished with hand osteotomes, followed by tapered drills. A 4.3 x 13 mm Nobel Biocare implant was placed. Following osseointegration, a PFM crown, supported by an esthetic abutment, was placed. A very pleasing esthetic result was achieved.
