External Root Resorption of the Second Molar
Conditions
Interventions
Reserve group:NA
Remove group:NA
Sponsors
The Third Affiliated Hospital of Air Force Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 60 Years
Inclusion criteria
Inclusion criteria: 1. Time Period: From December 1, 2018, to November 30, 2022, patients from various centers were identified with mandibular impacted third molars causing external root resorption (ERR) in the second molars, as evidenced by Cone Beam Computed Tomography (CBCT), with the site of external resorption located below the alveolar crest. 2. Patient Age: Patients aged between 18 and 60 years, with fully developed roots of the impacted mandibular third molars. 3. Condition of the Second Molar: The second molar has erupted and is capable of normal function, without significant mobility, caries, or large areas of restorative material. 4. Patient Participation: Subjects voluntarily participated in this study and were able to return to the hospital for follow-up visits.
Exclusion criteria
Exclusion criteria: 1. There are cystic lesions, tumors, fractures, osteomyelitis, etc. in the M3 or M2 area of the jawbone; 2. M3 or M2 presents with extensive caries or deformities, crown restoration, distal filling, and root canal treatment of second molars; 3. M3 tooth root not fully developed; 4. Individuals with systemic diseases that cannot withstand tooth extraction surgery; 5. Individuals undergoing orthodontic treatment or having a history of orthodontic treatment; 6. Participated in other clinical trials within the first three months prior to the start of this trial; 7. Pregnant women, lactating women, or patients with a pregnancy plan within six months during menstruation; 8. Other situations where the doctor determines that participation in the experiment is not possible.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pulp activity of second molar; | — |
Secondary
| Measure | Time frame |
|---|---|
| Periodontal status of second molars (looseness, periodontal examination); | — |
Countries
China
Contacts
Public ContactZhang Wuyang
The Third Affiliated Hospital of Air Force Medical University
Outcome results
None listed