When disc brakes for high performance cars arrived on the scene we began to hear of warped brake discs on road going cars, with the same analyses and diagnoses. Typically, the discs are resurfaced to cure the problem and, equally typically, after a relatively short time the roughness or vibration comes back.
As a result, the cheek teeth, like the incisors, have evolved to continuously grow throughout life. In other rodents, the diet of tubers, seeds, and grain requires little chewing, resulting in little wear of the cheek teeth.
Teething is the process by which an infant's first teeth (the deciduous teeth, often called baby teeth or milk teeth) sequentially appear by emerging through the gums, typically arriving in pairs. Teething usually begins between six and eight months. It can take several years for all 20 teeth to complete the tooth eruption.