METHOD OF PREDICTION OF OPERATION OF CLOSED SINUS LIFT - HEMO-SINUS LIFT Russian patent published in 2023 - IPC A61B17/00 A61C8/00 A61B8/13 

FIELD: medicine; dentistry.

SUBSTANCE: before dental implantation, the following is measured: the height of the alveolar process to the bottom of the maxillary sinus (h₁), the height of the implant (h_i), the diameter of the prepared bone bed for the implant (d₁), the diameter of the implant apex (d₂), the width of the bottom of the maxillary sinus (d₃). The height of the implant in the subantral space (h₂) is calculated by the formula: h₂=h_i - h_1. The shape of the prepared bone bed is the shape of a cylinder. The volume of the prepared bone bed for the implant (V₁) is calculated using the formula: . The shape of the implant in the subantral space is the shape of a truncated cone. The volume of the implant in the subantral space (V₂) is calculated using the formula: The shape of the raised subantral space is the shape of a truncated cone. The volume of the raised subantral space (V₃) is calculated using the formula: After that, the values of V₃ and the sum of the values of V₁ + V₂ are compared. With a value of V₃≤ V₁ + V₂ prognosis of surgery is favorable. With a value of V₃ > V₁ + V₂, the prognosis of surgical intervention is doubtful.

EFFECT: method allows to plan the operation of raising the mucous membrane of the maxillary sinus before dental implantation and to develop a prognosis for the effectiveness of treatment.

1 cl, 9 dwg, 2 ex