Pulpitis is a painful condition that occurs due to bacterial infection of the dental pulp tissue. Pulpitis has its own typical symptoms, including pain triggered by temperature changes. Eating foods that are cold, hot, sour, or sweet can cause severe pain in the dental nerves. Additionally, temperature stimuli intensify the pain; both cold and hot water can cause tooth pain. During the acute suppurative phase, there is pain with heat and relief with cold, meaning drinking hot water causes pain, whereas drinking cold water can alleviate it. Another typical characteristic of pulpitis includes nighttime pain; often there is less pain during the day, but at night or after falling asleep, the pain can awaken the individual from sleep.