[2025-10-01T02:22:20.731379] [QUERYOME] Starting research for query 1057: 'Instructions: 
 Answer the question below. First, respond with the single best option letter (A, B, C, or D). Then provide a concise reasoning (1–3 sentences). Use both the retrieved evidence and your own medical knowledge to choose the most accurate answer. 

Question:
The percentage of fluoride used in iontophoresis is: 

Options:
{'A': '1%', 'B': '2%', 'C': '4%', 'D': '8%'}'
[2025-10-01T02:22:20.774332] [PI] Starting research for query: 'Instructions: 
 Answer the question below. First, respond with the single best option letter (A, B, C, or D). Then provide a concise reasoning (1–3 sentences). Use both the retrieved evidence and your own medical knowledge to choose the most accurate answer. 

Question:
The percentage of fluoride used in iontophoresis is: 

Options:
{'A': '1%', 'B': '2%', 'C': '4%', 'D': '8%'}'
[2025-10-01T02:22:20.777411] Saving text to bench_final/run1/medmcqa/medmcqa_1056/pi_initial_prompt.txt
[2025-10-01T02:22:20.783448] [PI] Calling o3 for initial analysis...
[2025-10-01T02:22:28.060265] [PI] Reasoning iteration 1
[2025-10-01T02:22:28.061885] [PI reasoning] **Confirming fluoride concentration**

I'm trying to figure out the percentage of fluoride typically used in iontophoresis for dental treatments, with options being 1%, 2%, 4%, or 8%. I know that iontophoresis involves driving fluoride ions into enamel using an electric current. For topical treatments, I recall that common concentrations include 2% sodium fluoride. I think that 2% is likely the correct answer for iontophoresis, but it would be good to confirm this quickly with some additional information.
[2025-10-01T02:22:28.064599] [PI] Executing function call 1: hybrid_search
[2025-10-01T02:22:28.070656] [PI] Function arguments: {'query': 'fluoride iontophoresis 2% sodium fluoride', 'k': 10, 'faiss_weight': 0.7, 'bm25_weight': 0.3, 'use_rrf': True}
[2025-10-01T02:22:28.074573] Saving JSON to bench_final/run1/medmcqa/medmcqa_1056/pi_iteration_1_tool_call_2_hybrid_search.json
[2025-10-01T02:22:46.296258] [PI] Function hybrid_search executed successfully
[2025-10-01T02:22:46.299233] Saving JSON to bench_final/run1/medmcqa/medmcqa_1056/pi_iteration_1_tool_result_2_hybrid_search.json
[2025-10-01T02:22:46.307243] [PI] Continuing reasoning with 1 function responses...
[2025-10-01T02:22:53.140011] [PI] Reasoning iteration 2
[2025-10-01T02:22:53.141668] [PI] No function calls found in response
[2025-10-01T02:22:53.144585] [PI] No more function calls - research complete
[2025-10-01T02:22:53.148876] Saving text to bench_final/run1/medmcqa/medmcqa_1056/pi_final_answer.txt
[2025-10-01T02:22:53.186680] [QUERYOME] Query completed successfully
