Evaluation of GPT-5 in Periodontitis Staging and Grading: Retrospective Observational Study Background: Periodontitis is a chronic gum disease affecting approximately 42% of adults aged 30 years and older in the United States. Training dental students to accurately diagnose and manage periodontitis is a critical component of dental education and clinical care. Recent advances in large language models offer new opportunities to support both domains, yet their performance in periodontal diagnosis remains largely unexplored, particularly for newer models such as GPT-5. Objective: This study conducted an exploratory evaluation of GPT-5’s ability to stage and grade periodontitis. Methods: A total of 25 publicly available clinical cases explicitly reporting periodontitis stage and grade were identified through Google and PubMed searches. Each case description was entered into GPT-5 using a zero-shot prompting approach to assess guideline-based reasoning without exemplar conditioning. The model’s predictions were compared with the published reference diagnoses. Performance was measured using accuracy, 95% CI, unweighted Cohen κ, and weighted Cohen κ. Results: Across these cases, GPT-5 showed marked class-dependent performance and a tendency to overestimate disease severity. Grading performance was notably imbalanced, with high recall for grade C but substantially lower discrimination for grade B. GPT-5 achieved a staging accuracy of 68% (95% CI 48.4%-82.8%) and a grading accuracy of 77.3% (95% CI 56.6%-89.9%), with corresponding Cohen κ values of 0.454 (95% CI 11.0%-75.6%) and 0.179 (95% CI −15.8% to 63.8%), respectively. While staging performance showed fair agreement beyond chance, the low κ for grading indicates poor agreement and limited reliability in distinguishing periodontal disease severity. Conclusions: These findings suggest that although GPT-5 demonstrates potential for guideline-based periodontitis staging and grading, its current diagnostic performance, particularly for periodontitis grading, limits its use in clinical assessment and educational training. Meaningful application in periodontal diagnosis and training will require substantial improvements in reliability and rigorous validation in larger, more diverse, and prospectively collected datasets.

JMIR Formative Res: Evaluation of GPT-5 in Periodontitis Staging and Grading: Retrospective Observational Study #Periodontitis #DentalEducation #GPT5 #OralHealth #ChronicDisease

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Oral health is often overlooked after transplant.

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📣 Call for Abstracts is Now Open! 🦷
Join us at the World Congress on Dental Science & Oral Health
📅 August 17–18, 2026 |
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'I'm sick of it': One in two Australians priced out of healthcare system One in two Australians missed out on health care they needed last year mainly because they could not afford it, according to a new report by the peak healthcare consumers group.

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Dental Caries: Why Early Treatment Matters

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How can dental AI support earlier detection of systemic disease? New research explores how radiographs, technology, and collaboration can advance medical-dental integration and whole-person care.

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Why does your breath sometimes stink even after brushing your teeth? You might brush twice a day but still struggle with stinky breath. Why is that?

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📣 Call for Abstracts is Now Open! 🦷
Join us at the World Congress on Dental Science & Oral Health
📅 August 17–18, 2026 |
📍 Orlando, Florida, USA
📝 Submit your abstract today: dentistry.inovineconferences.com/submit-abstr...

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The Impact of Eating Disorders on Oral Health The impact of eating disorders on oral health is well documented, yet it remains an overlooked consequence of these complex mental health conditions. Research consistently shows that individuals with ...

🧪In today’s article, dentist Amiytha Vasanthan explores the often-overlooked link between #eatingdisorders and #oralhealth, reflecting on how mental and physical wellbeing influence one another and the need for #holisticcare.

Read now: www.inspirethemind.org/post/the-imp...