Monje A, et al. - Given the potential impact of peri-implant defect morphology on the reconstructive outcomes for the management of peri-implantitis, researchers focused on assessing the morphology and severity of peri-implantitis bone defects and examined how the patient-, implant- and site-related variables could be associated to these. They conducted a cone-beam computed tomography study classifying peri-implantitis defects based on the type of defect, number of remaining bony walls and severity based on the extension of vertical bone loss. They proposed 3 major defect categories: class I—infraosseous; class II—horizontal; class III—combined of class I and II. Peri-implantitis defects frequently course with an infraosseous component and often with buccal bone loss. Compared to the other bony walls in class I and class III defects, buccal bone loss was noted to be significantly greater. The type of defect was noted to be correlated with age. Findings revealed an association of age and smoking habit with the morphology of the defects, while there was an association of smoking habit, type of prosthesis and distance to adjacent implant with the severity of the defects (vertical bone loss).