What are the components of Carnoy's solution?

• A. Ferric chloride, Absolute alcohol, Chloroform, Glacial acetic acid
• B. Hydrochloric acid, Alcohol, Acetic acid
• C. Salt solution and glycerin
• D. Isopropanol, Formalin, Water

Answer: (A)

Carnoy's solution is traditionally used in surgical procedures to help facilitate the excision of abnormal tissue, particularly in the treatment of certain oral lesions. The formulation of Carnoy's solution is specifically important in its ability to fix and preserve tissue while simultaneously acting as a mild dehydrating agent.

The correct composition of Carnoy's solution includes ferric chloride, absolute alcohol, chloroform, and glacial acetic acid. Each of these components serves a distinct purpose:

• Ferric chloride acts as a coagulating agent, which aids in the fixation of tissue.

• Absolute alcohol helps in dehydrating the tissue and ensures proper penetration of other components.

• Chloroform is included for its properties as a solvent that helps dissolve the other constituents and enhances the effectiveness of the solution.

• Glacial acetic acid functions as a fixative that further stabilizes the tissue structure during surgical processes.

The synergy of these components results in a solution that can efficiently preserve cellular architecture while allowing pathologists to make accurate diagnoses from excised tissues. Understanding the constituents and their roles is crucial for anyone involved in oral and maxillofacial surgery and tissue handling.