A novel approach to manage Schneiderian membrane perforation in the maxillary sinus floor augmentation: The "Sinus Pack" technique. Histomorphometric analysis. Part 2/3

Purpose: This retrospective study examined the histomorphometrical outcomes resulting from managing Schneiderian membrane perforation during maxillary sinus floor augmentation using two different approaches and relating the results to perforation size. Methods: 19 subjects (7 males, 12 females, mean age 53.3±10.5 years), who experienced a sinus membrane perforation during lateral sinus lift procedure, were enrolled. Perforations were addressed utilizing either the "Sinus Pack" technique (test group, 11 subjects) or collagen membranes with absorbable sutures (control group, 8 subjects). The "Sinus Pack" consisted of a combination of collagenated porcine bone, polyunsaturated fatty acids, and a biocompatible synthetic copolymer, wrapped in a resorbable porcine mesenchymal collagen membrane. Histomorphometry outcomes of both techniques were compared. Results: The percentage of vital bone was significantly higher with the "Sinus Pack" approach (44.5% ± 19.8%) compared to the control group (26.3% ± 21.2%) (P= 0.045). Clinical significance: The "Sinus Pack" approach for managing sinus membrane perforations appears to be effective and advantageous, as it has resulted in optimal histomorphometric outcomes, indicating a significant increase in vital bone.