Relationship Between Preoperative Cone Beam Computed Tomography and Intraoperative Findings in Sinus Augmentation

Association Between Sinus Membrane Thickness and Membrane Perforation in Lateral Window Sinus Augmentation: A Retrospective Study

“…Whereas surgeon’s expertise and knowledge are essential for any dental procedure, there are certain risk factors that may influence Schneiderian membrane perforation, such as: 1) membrane thickness; 2) residual ridge height; 3) excessive force on graft material; 4) septal bone; 5) smoking; 6) and gingival phenotype. However, existing data evaluating association between membrane thickness and perforation are limited and conflicting between the two studies by Gurler and Delilbasi 18 and Lin et al 20 Therefore, the present retrospective study was performed to evaluate this relationship using CBCT images from 167 lateral window sinus augmentation procedures.…”

“…The most common surgical complication encountered by clinicians is perforation of the Schneiderian membrane, which can manifest intraoperatively or postoperatively. A high rate of sinus membrane perforation could be related to irregularities in sinus floor anatomy, membrane thickness, pathology, or gingival phenotype 15–18 . Although previous studies have attempted to identify risk factors for membrane perforation, limited information with conflicting data exists regarding significance of the relationship between membrane thickness and membrane perforation 17–20 .…”

“…A high rate of sinus membrane perforation could be related to irregularities in sinus floor anatomy, membrane thickness, pathology, or gingival phenotype 15–18 . Although previous studies have attempted to identify risk factors for membrane perforation, limited information with conflicting data exists regarding significance of the relationship between membrane thickness and membrane perforation 17–20 . Therefore, the aim of this cone‐beam computed tomography (CBCT) study is to assess association of Schneiderian membrane thickness on perforation during lateral window sinus augmentation.…”

Cone Beam CT-Based Preoperative Volumetric Estimation of Bone Graft Required for Lateral Window Sinus Augmentation, Compared with Intraoperative Findings: A Pilot Study

“…Conventional dental or panoramic radiographs are not suitable for volumetric analysis, as their two-dimensional nature only provides an approximation of sinus graft vertical dimensions. Thus, 3D imaging is required to allow investigation of the presence of bony septa, as well as Schneiderian membrane thickness and residual alveolar bone height [ 9 , 10 ], thereby allowing the proper design of the lateral wall sinus augmentation.…”

“…Several previous studies have used Computed Tomography (CT) as a method for sinus anatomy evaluation and volume calculation [ 11 - 14 ]. Cone Beam CT (CBCT) has also been used with comparable accuracy [ 9 , 15 - 18 ].…”