mandibular retromolar canal
Conditions
Interventions
Gold Standard:Two researchers made independent diagnosis based on CBCT images. If there was any inconsistency in judgment, a clinician specializing in endodontics with 20 years of clinical experience
Index test:Machine learning in predicting the mandibular retromolar canal in panoramic radiography
Sponsors
Hospital of stomatology, Sun Yat-sen University
Eligibility
Sex/Gender
All
Age
18 Years to 100 Years
Inclusion criteria
Inclusion criteria: 1: Age = 18 years old. 2: The maxillofacial region is symmetrical and has no deformity, and no serious influence on the morphology of the mandible due to trauma or surgery. 3: CBCT image is clear with complete visual field and there is no serious metal artifact.
Exclusion criteria
Exclusion criteria: 1: Patients with mandibular trauma and surgery seriously affect the shape of the jaw. 2: Patients with mandibular cysts, tumors and other obvious space-occupying lesions. 3: CBCT image is not clear, there are serious metal artifacts. 4: Patients with severe periodontitis and osteomyelitis of jaw. 5: One side of the second and third molars are all missing.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| With or without posterior molar canal;Accuracy;Sensitivity;Specificity; | — |
Secondary
| Measure | Time frame |
|---|---|
| The diameter of the mandibular retromolar canal;The incidence of the mandibular retromolar canal;The distance between the retromolar foramen and the mandibular second molar;Distance between retromolar foramen and mandibular canal;The classification of the retromolar canal; | — |
Countries
China
Contacts
Public ContactXu Qiong
Hospital of stomatology, Sun Yat-sen University
Outcome results
None listed