Understanding Dental Implants Dental implant patients undergo a minor surgical procedure where an artificial tooth root is placed in the dental bed. The ability to undergo this procedure or the condition to undergo it is mainly related to the patient’s general condition and local conditions. Who can have dental implants? From the point of view of the general condition, the patient must be an adult in good physical and mental health, or a young person with established bone and dental development, without organic diseases of various organs and osteoporosis. The local requirements are: one tooth, multiple teeth or even the whole mouth is missing; serious bone resorption of the dental bed, wearing traditional dentures have difficulties, unable to chew food; have special requirements for the aesthetics and function of dentures; the end of the missing can not perform traditional fixed restoration. In terms of local conditions, there are some requirements, such as the implant surgery must be performed 3 months after the extraction of the tooth, and there must be no significant inflammation of the oral soft tissues, and the morphology and quality of the bone in the dental cavity must be good. In addition, since dental implants are expensive and have a failure rate of about 5%, the patient must have a strong desire for dental implants and be financially capable. Who is not suitable for dental implantation? 1. Chronic wasting diseases, such as tuberculosis, diabetes, blood diseases; 2. Hypertension, heart diseases, cerebrovascular diseases; 3. Mental illness, psychological instability; 4. All the above mentioned diseases are contraindicated for implant surgery. However, there are relative contraindications and absolute contraindications. For patients with reversible diseases, dental implant surgery and restoration can still be performed after they have been controlled or cured through treatment. Although dental implant is a minor surgery, it is contraindicated for certain local conditions: various inflammatory diseases of soft and hard tissues in the oral cavity; various benign and malignant tumors in the oral cavity that have not been cured; abnormal occlusion and malformation, restricted mouth opening; severe bone resorption and shrinkage in the dental cavity resulting in insufficient bone volume, and the implant may penetrate into the maxillary sinus in the upper jaw and into the mandibular canal in the lower jaw during implantation, which are not suitable for direct implantation and can be improved with bone grafting. The implant can be placed at the same time or postponed. In addition, it is also contraindicated for those who have serious grinding habits and poor oral hygiene.