[2025-09-30T00:12:06.244842] [QUERYOME] Starting research for query 349: '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:
2nd Mesiobuccal canal can be seen from naked eyes in what percentage of cases 

Options:
{'A': '62-70%', 'B': '90-95%', 'C': '30%', 'D': '40-55%'}'
[2025-09-30T00:12:06.292029] [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:
2nd Mesiobuccal canal can be seen from naked eyes in what percentage of cases 

Options:
{'A': '62-70%', 'B': '90-95%', 'C': '30%', 'D': '40-55%'}'
[2025-09-30T00:12:06.294056] Saving text to bench_final/run1/medmcqa/medmcqa_348/pi_initial_prompt.txt
[2025-09-30T00:12:06.307877] [PI] Calling o3 for initial analysis...
[2025-09-30T00:12:15.034288] [PI] Reasoning iteration 1
[2025-09-30T00:12:15.035852] [PI reasoning] **Analyzing endodontic visibility**

I'm focusing on the detection of the second mesiobuccal canal (MB2) in maxillary molars. When considering visibility by the naked eye, studies suggest a prevalence of around 17.2%, but that might be clinically seen as 40-55%. Generally, MB2 canal prevalence hovers around 60-80% under microscopy. Weine's 1974 study noted about 63% presence in first molars, while Stropko in 1999 recorded detection rates of 17% with the naked eye. So, I think 30% could be the best option here.
[2025-09-30T00:12:15.037654] [PI] Executing function call 1: hybrid_search
[2025-09-30T00:12:15.039269] [PI] Function arguments: {'query': 'second mesiobuccal canal naked eye detection percentage', 'k': 10, 'faiss_weight': 0.6, 'bm25_weight': 0.4, 'use_rrf': True}
[2025-09-30T00:12:15.040875] Saving JSON to bench_final/run1/medmcqa/medmcqa_348/pi_iteration_1_tool_call_2_hybrid_search.json
[2025-09-30T00:13:02.377822] [PI] Function hybrid_search executed successfully
[2025-09-30T00:13:02.379587] Saving JSON to bench_final/run1/medmcqa/medmcqa_348/pi_iteration_1_tool_result_2_hybrid_search.json
[2025-09-30T00:13:02.386506] [PI] Continuing reasoning with 1 function responses...
[2025-09-30T00:13:09.687217] [PI] Reasoning iteration 2
[2025-09-30T00:13:09.688963] [PI reasoning] **Analyzing detection rates**

I’m focusing on detection rates in dental studies. Result #1 shows only 25% detectable by the naked eye in an ex vivo study of 120 teeth. That seems low. Other studies, like Stropko from 1999, reported 17.2% visibility without a microscope. So, I’m leaning toward saying 30% is the nearest estimate. However, if exam questions arise, they might ask about visibility in 62-70% of cases, which could involve some misconceptions.
[2025-09-30T00:13:09.693906] [PI] Executing function call 1: hybrid_search
[2025-09-30T00:13:09.695522] [PI] Function arguments: {'query': '62% naked eye MB2 canal', 'k': 10, 'faiss_weight': 0.5, 'bm25_weight': 0.5, 'use_rrf': True}
[2025-09-30T00:13:09.697069] Saving JSON to bench_final/run1/medmcqa/medmcqa_348/pi_iteration_2_tool_call_2_hybrid_search.json
[2025-09-30T00:13:51.583760] [PI] Function hybrid_search executed successfully
[2025-09-30T00:13:51.585266] Saving JSON to bench_final/run1/medmcqa/medmcqa_348/pi_iteration_2_tool_result_2_hybrid_search.json
[2025-09-30T00:13:51.601364] [PI] Continuing reasoning with 1 function responses...
[2025-09-30T00:14:04.035038] [PI] Reasoning iteration 3
[2025-09-30T00:14:04.043592] [PI] Executing function call 1: hybrid_search
[2025-09-30T00:14:04.045244] [PI] Function arguments: {'query': 'Stropko microscope MB2 93% 17.2% naked eye', 'k': 10, 'faiss_weight': 0.6, 'bm25_weight': 0.4, 'use_rrf': True}
[2025-09-30T00:14:04.046863] Saving JSON to bench_final/run1/medmcqa/medmcqa_348/pi_iteration_3_tool_call_2_hybrid_search.json
[2025-09-30T00:15:12.986397] [PI] Function hybrid_search executed successfully
[2025-09-30T00:15:12.988712] Saving JSON to bench_final/run1/medmcqa/medmcqa_348/pi_iteration_3_tool_result_2_hybrid_search.json
[2025-09-30T00:15:13.006908] [PI] Continuing reasoning with 1 function responses...
[2025-09-30T00:15:18.395829] [PI] Reasoning iteration 4
[2025-09-30T00:15:18.404583] [PI] No function calls found in response
[2025-09-30T00:15:18.405689] [PI] No more function calls - research complete
[2025-09-30T00:15:18.406789] Saving text to bench_final/run1/medmcqa/medmcqa_348/pi_final_answer.txt
[2025-09-30T00:15:18.425282] [QUERYOME] Query completed successfully
