Therefore, these bacteria form yellow colonies on XLD agar, but Salmonella spp. can decarboxylate lysin, which increases the pH and the colonies remain red. Furthermore, Salmonella spp. produce hydrogen sulfide (H 2 S) from thiosulfate, which results in a black precipitate with ferric salts.
Wisdom tooth extraction is performed with local anesthesia, IV sedation, inhalation sedation, or general anesthesia. In the US, the average cost of wisdom tooth extraction is $400 â $600. The average cost of a wisdom tooth extraction in Mexico is $150 â $250.
1 A simple wisdom tooth extraction (where the tooth is fully erupted from the gums and has simple roots) using a local anesthetic costs about $75-$200 per tooth, or $300-$800 to have all four wisdom teeth removed as simple, non-surgical extractions. Dental insurance might cover 15%-50% of wisdom tooth removal if the procedure is considered medically necessary, and some dental plans only pay an annual maximum of $1,000-$1,500.