bony impacted tooth
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1: Patients who have the impacted and submerged teeth in the anterior part of the maxilla extracted 2: The dentition of the maxilla is the permanent dentition 3: The patient's age is between 10 and 40 years old; 4: The extraction surgery is guided by the dynamic navigation system 5: Patients who have preoperative CBCT data, preoperative design data and postoperative accuracy detection data.
Exclusion criteria
Exclusion criteria: 1: Factors that affect the positioning of the navigation registration device and the retention device, such as obvious dental crowding, loose teeth, moderate to severe periodontitis, obvious undercuts, and orthodontic devices; 2: Systemic diseases that make the patient unable to tolerate the routine outpatient tooth extraction surgery; 3: Local lesions in the surgical area, such as periapical lesions and cystic lesions, which require the treatment of other lesions simultaneously during tooth extraction; 4: Factors that affect the tissue healing and prognosis evaluation after tooth extraction, such as obvious source teeth or lesions in the maxillofacial region that are likely to cause pain and swelling, long-term use of drugs that affect bone regeneration such as corticosteroids and bisphosphonates, and a history of radiotherapy in the head and neck area.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Intersection over Union of the osteotomy window position; | — |
Countries
China
Contacts
Peking University School and Hospital of Stomatology