Introduction. The intraosseous dental implantation (DI) is accompanied by complications: intraoperative; postoperative; remote (from 6 months to 5 years). Practically DI remote complications are poorly studied. The majority of DI remote complications occur in the region of the upper jaw due to its more complex anatomy and physiology, peculiarities of its topography, bone quality, proximity to the nasal cavity, the orbit. It is known the variant of remote complication in patients after DI in the upper jaw — the maxillary postimplantation syndrome (MPS).

Purpose — to determine the anthropometric criteria of the facial skeleton and upper jaw, predisposing to the development of MPS.

Material and Methods. CT scans of 43 patients with acute and chronic sinusitis and full dentition in the upper and lower jaws, 60 patients with dental implants without remote complications and 132 patients with MPS. Measurements of the anatomical structures were conducted at skull three-dimensional reconstruction in software package “VISION” of the DICOM format. The investigation results are entered in Microsoft Excel tables. For data processing the statistical methods of mathematical analysis from the application programs package StatSoft Statistica 7.0 for Windows were applied.

Results. The facial index and the thickness of the bone barrier between the roots of the upper jaw teeth and the bottom of the maxillary sinus were defined.

Conclusions. Hameporosopic and mesoprosopic shapes of the facial skeleton and the thickness of the bone lamella above the tooth root less than 0,5 mm predispose to the development of MPS.