Before taking the impressions, the doctor needs to grind the remaining real teeth in the mouth according to the design. Many patients do not understand this, and refuse to have their dentures placed for fear of causing damage to these ground teeth, or for fear of pain. Why is it necessary to grind the teeth? Because the support of the denture relies on the remaining mucosa in the missing tooth area, but also on the remaining teeth to share the chewing pressure of the denture. A fixed denture is an abutment tooth that is cemented by a crown sleeve, while a removable denture is connected to the denture well by a support that transmits the force to the tooth that is the abutment tooth. Both the crowns and brackets have to occupy a certain space, which is obtained by grinding the teeth. If they are reluctantly made, they may become bad restorations and cause damage to the teeth and other oral tissues. Some teeth are disordered or elongated, so it is difficult to make a denture without grinding, so it is necessary to do some appropriate grinding of the teeth as abutment teeth to prepare the necessary conditions for the denture fabrication.