Evaluating diagnostic accuracy and consistency in applying the 2017 periodontal classification among dental professionals

Understanding gum disease correctly is important for providing patients with the right treatments. This study looked at how accurately different groups of dental professionals - specialists in gum disease (periodontists), dentists in training (residents), and recent dental graduates (interns) - could diagnose cases of periodontitis using a new system called the 2017 Periodontal Classification. A group of expert periodontists created a "gold-standard" diagnosis for comparison. We found that periodontists were the most accurate, while interns had more difficulty correctly identifying disease severity. Across all groups, many participants underestimated how serious the cases were. Participants were better at recognizing advanced disease compared to milder forms. When the participants repeated the diagnosis of the cases later, their accuracy improved, suggesting that practice and training help. Our results show that diagnosing gum disease can vary depending on experience and training. The study highlights the need for ongoing education and practice to make sure that all dental professionals can diagnose gum disease reliably, which is important for making treatment decisions and improving patient care.