The study aims at evaluating the causes of tooth loss and correlates them to risk factors in adult patients, who are frequenting King Abdulaziz University Dental Hospital in Jeddah. A 153 patients were included, ages ranging from 14 to 85 years (mean 34.49±15.8). Clinical chart review was conducted, past medical history, potential risk factors such as poor oral hygiene and smoking, DMFS and bone loss level were recorded. A validated questionnaire was used to collect demographic data in addition to other variables including; smoking, oral hygiene practice, history of previous dental extraction and the reason of each extraction, and the number of extracted teeth in the current visit and the reason associated with it. statistical analysis done using Statistical Package for the Social Sciences (SPSS) version 26. A total of 249 teeth have been extracted from 153 patients; caries (82.4%) was the highest cause for extraction, followed by periodontal disease (12.4%). Males showed higher prevalence of extractions (51%). History of previous extractions was significantly associated with caries and periodontal disease as a cause of current extraction (p=0.043). Moreover, the frequency of upper posterior teeth extractions was the highest, followed by lower posterior teeth. In the current participant population, both caries and periodontal diseases were the most common causes of extraction. Further educational awareness strategies, are required for early prevention of caries and periodontal disease, to avoid teeth loss and the eventual associated complications.
