We conducted a study to automatically generate jaw cyst findings from dental panoramic radiographs, leveraging the multimodal capabilities of OpenAI GPT-4o. To improve accuracy, we developed and validated the Self-Correction Loop with Structured Output (SLSO) framework. The SLSO framework, a 10-step process encompassing image input and analysis, structured data generation, tooth number extraction and consistency checking, iterative regeneration in case of discrepancies, finding generation, and subsequent structuring and consistency verification, was applied to 22 jaw cyst cases. We compared the results with the existing Chain-of-Thought (CoT) method on seven evaluation criteria: transparency, internal structure, boundaries, root resorption, tooth movement, relationships to other structures, and tooth number. The SLSO framework improved the output accuracy across multiple criteria, particularly in tooth number (66.9%), tooth movement (33.3%), and root resorption (28.6%). In successful cases, consistent structured output was achieved after up to five regenerations.