Prediction of the bone volume for sinus augmentation through 3-dimensional analysis

Area of Science:

• Dental implantology
• Oral and maxillofacial surgery
• Biomaterials science

Background:

• Maxillary sinus augmentation is a common procedure in dental implantology.
• There is currently no established consensus on the precise bone grafting volume required.
• Accurate volume estimation is crucial for successful outcomes.

Purpose of the Study:

• To estimate the minimum bone volume needed for maxillary sinus augmentation.
• To identify factors influencing the final augmentation volume (AV).

Main Methods:

• Virtual dome-shaped sinus augmentation was performed on 30 patients using cone-beam computed tomography (CBCT).
• Augmentation was simulated at various vertical heights (VH) with and without simulated implantation.
• Augmentation angle (AA), sinus width (SW), and AV were measured using 3D Slicer software.

Main Results:

• Mean AV varied significantly with VH, ranging from 0.037 to 1.287 cc across groups and heights.
• Univariable and multivariable analyses confirmed that SW, AA, and VH are significant predictors of AV (P < 0.001).
• AA and VH were identified as the most significant factors in multivariable analysis (P < 0.01).

Conclusions:

• Clinicians can reliably predict the required bone volume for sinus augmentation.
• Measuring augmentation height and angle provides a predictable method for estimating bone volume.
• This facilitates more precise surgical planning in maxillary sinus augmentation procedures.