When a tooth is avulsed, which solution is the most commonly used to maintain periodontal ligament cells?

When a tooth is avulsed, which solution is the most commonly used to maintain periodontal ligament cells?

• A. Hank's balanced salt solution
• B. Isotonic saline
• C. Milk
• D. Saliva

Answer: (C)

The most commonly recommended solution for maintaining periodontal ligament cells after a tooth has been avulsed is milk. The rationale behind this choice lies in the properties of milk, which contains vital nutrients, including proteins and antimicrobial properties that help preserve the vitality of the periodontal ligament cells. The osmolarity of milk is also similar to that of human cells, making it an effective medium for protecting those cells from the damage that can occur after avulsion. Hank's balanced salt solution is often used in research settings and might be ideal for longer-term storage of avulsed teeth, but it is not as readily available in emergency situations like milk. Isotonic saline, while it also helps to maintain some cell viability, does not provide the nutritional components that milk does, reducing its efficacy for prolonging the life of periodontal cells. Saliva may contain some beneficial substances, but it is not suitable as a transport medium compared to milk, particularly due to the risk of contamination and the dilution of nutrients. Therefore, when considering the immediate and practical availability in emergency scenarios, along with its nutrient composition, milk stands out as the best option to maintain the periodontal ligament cells after tooth avulsion.

The most commonly recommended solution for maintaining periodontal ligament cells after a tooth has been avulsed is milk. The rationale behind this choice lies in the properties of milk, which contains vital nutrients, including proteins and antimicrobial properties that help preserve the vitality of the periodontal ligament cells. The osmolarity of milk is also similar to that of human cells, making it an effective medium for protecting those cells from the damage that can occur after avulsion.

Hank's balanced salt solution is often used in research settings and might be ideal for longer-term storage of avulsed teeth, but it is not as readily available in emergency situations like milk. Isotonic saline, while it also helps to maintain some cell viability, does not provide the nutritional components that milk does, reducing its efficacy for prolonging the life of periodontal cells. Saliva may contain some beneficial substances, but it is not suitable as a transport medium compared to milk, particularly due to the risk of contamination and the dilution of nutrients.

Therefore, when considering the immediate and practical availability in emergency scenarios, along with its nutrient composition, milk stands out as the best option to maintain the periodontal ligament cells after tooth avulsion.