External Root Resorption of the Second Molar
Conditions
Interventions
Control group:Extract the third molar
Experimental group:Extract the third molar and insert the Sticky bone
Sponsors
The Third Affiliated Hospital of Air Force Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 45 Years
Inclusion criteria
Inclusion criteria: 1. CBCT indicates that the impacted mandibular third molar has caused External Resorption (ERR) of the second molar, with the resorption site located below the crest of the alveolar ridge; 2. The degree of ERR in the second molar is severe; 3. The patient is aged between 18 and 45 years, and the roots of the impacted mandibular third molar are fully developed; 4. The second molar is an erupted permanent tooth that can function normally, with normal pulp vitality and no significant mobility, caries, or large fillings; 5. The subject has chosen to undergo the treatment of extracting the impacted third molar and voluntarily participates in this trial, signing the informed consent form and being able to cooperate with clinical follow-up.
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. The patient refuses to have the impacted third molar extracted; 9. 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 |
|---|---|
| Priodontal status of second molar; | — |
Countries
China
Contacts
Public ContactZhang Wuyang
The Third Affiliated Hospital of Air Force Medical University
Outcome results
None listed