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.
The cost of wisdom teeth extraction can vary depending on the procedureâs degree of difficulty: 1  If the tooth has fully emerged from the gum and has simple roots it will require a local anesthetic and removal will cost about $75-$200 per tooth. Impacted wisdom teeth are more expensive to remove, extraction using a local anesthetic can cost $225-$600 per tooth. Using nitrous oxide $40-$90; or general anesthetic can add $250-$800 to the total cost.