[2025-10-02T09:58:28.033037] [QUERYOME] Starting research for query 2562: '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:
A properly designed rest on lingual surface of a canine is preferred to a rest on incisal surface because:

Options:
A. Less Leverage is exerted against the tooth by Lingual rest
B. Enamel is thicker on lingual surface
C. Visibility and access is better on lingual surface
D. The cingulum of canine produces a naturalsurface for recess'
[2025-10-02T09:58:28.067406] [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:
A properly designed rest on lingual surface of a canine is preferred to a rest on incisal surface because:

Options:
A. Less Leverage is exerted against the tooth by Lingual rest
B. Enamel is thicker on lingual surface
C. Visibility and access is better on lingual surface
D. The cingulum of canine produces a naturalsurface for recess'
[2025-10-02T09:58:28.069060] Saving text to bench_final/run1/medmcqa/medmcqa_4122/pi_initial_prompt.txt
[2025-10-02T09:58:28.073603] [PI] Calling o3 for initial analysis...
[2025-10-02T09:58:42.631196] [PI] Reasoning iteration 1
[2025-10-02T09:58:42.632832] [PI reasoning] **Considering prosthodontics design**

I need to answer a question about rests in removable partial dentures, specifically regarding canines. For a rest, we can use either the incisal surface or the lingual cingulum. The lingual rest is preferred mainly because it exerts less leverage on the tooth. This position is closer to the center of rotation, reducing torque. I'll also consider the cingulum's natural shape, which creates a better seating. I'm curious which reason textbooks like McCracken emphasize most.
[2025-10-02T09:58:42.635722] [PI] Executing function call 1: hybrid_search
[2025-10-02T09:58:42.637380] [PI] Function arguments: {'query': 'why cingulum rest preferred over incisal rest leverage torque center of rotation canine lingual rest design removable partial denture McCracken', 'k': 10, 'faiss_weight': 0.7, 'bm25_weight': 0.3, 'use_rrf': True}
[2025-10-02T09:58:42.639157] Saving JSON to bench_final/run1/medmcqa/medmcqa_4122/pi_iteration_1_tool_call_2_hybrid_search.json
[2025-10-02T09:58:43.021975] [PI] Function hybrid_search executed successfully
[2025-10-02T09:58:43.023675] Saving JSON to bench_final/run1/medmcqa/medmcqa_4122/pi_iteration_1_tool_result_2_hybrid_search.json
[2025-10-02T09:58:43.051091] [PI] Continuing reasoning with 1 function responses...
[2025-10-02T09:58:50.909972] [PI] Reasoning iteration 2
[2025-10-02T09:58:50.912696] [PI] No function calls found in response
[2025-10-02T09:58:50.914618] [PI] No more function calls - research complete
[2025-10-02T09:58:50.917096] Saving text to bench_final/run1/medmcqa/medmcqa_4122/pi_final_answer.txt
[2025-10-02T09:58:50.923153] [QUERYOME] Query completed successfully
