[2025-10-01T17:16:44.837843] [QUERYOME] Starting research for query 304: '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:
Major drawback of pro-root MTA is its increased setting time which is decreased by addition of ?

Options:
A. 3% of NaOH
B. 3% NaCl
C. 5% CaCl
D. Distilled Water'
[2025-10-01T17:16:44.877737] [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:
Major drawback of pro-root MTA is its increased setting time which is decreased by addition of ?

Options:
A. 3% of NaOH
B. 3% NaCl
C. 5% CaCl
D. Distilled Water'
[2025-10-01T17:16:44.879308] Saving text to bench_final/run1/medmcqa/medmcqa_1864/pi_initial_prompt.txt
[2025-10-01T17:16:44.886730] [PI] Calling o3 for initial analysis...
[2025-10-01T17:16:51.347588] [PI] Reasoning iteration 1
[2025-10-01T17:16:51.349131] [PI reasoning] **Determining the correct answer**

I need to answer a multiple-choice question about ProRoot MTA, a dental material used in endodontics. It seems that adding calcium chloride (CaCl2) can reduce the setting time, and option C mentions "5% CaCl," likely referring to CaCl2. Many sources indicate that 10% CaCl2 is effective for this purpose. So, I think the answer is C. I should include a brief reasoning and citations from reputable sources like PubMed.
[2025-10-01T17:16:51.351064] [PI] Executing function call 1: hybrid_search
[2025-10-01T17:16:51.352628] [PI] Function arguments: {'query': 'calcium chloride decrease setting time mineral trioxide aggregate', 'k': 10, 'faiss_weight': 0.6, 'bm25_weight': 0.4, 'use_rrf': True}
[2025-10-01T17:16:51.354130] Saving JSON to bench_final/run1/medmcqa/medmcqa_1864/pi_iteration_1_tool_call_2_hybrid_search.json
[2025-10-01T17:16:53.639193] [PI] Function hybrid_search executed successfully
[2025-10-01T17:16:53.641801] Saving JSON to bench_final/run1/medmcqa/medmcqa_1864/pi_iteration_1_tool_result_2_hybrid_search.json
[2025-10-01T17:16:53.648945] [PI] Continuing reasoning with 1 function responses...
[2025-10-01T17:17:00.722849] [PI] Reasoning iteration 2
[2025-10-01T17:17:00.724574] [PI] No function calls found in response
[2025-10-01T17:17:00.727027] [PI] No more function calls - research complete
[2025-10-01T17:17:00.728905] Saving text to bench_final/run1/medmcqa/medmcqa_1864/pi_final_answer.txt
[2025-10-01T17:17:00.751755] [QUERYOME] Query completed successfully
