Complicated impacted mandibular third molar
Conditions
Interventions
test group:Endoscopic equipment combined with 3D printing model to complete mandibular third molar extraction
control group:Endoscopic equipment completes mandibular third molar extraction
Sponsors
Peking University School and Hospital of Stomatology
Eligibility
Sex/Gender
All
Age
18 Years to 69 Years
Inclusion criteria
Inclusion criteria: 1. Aged 18-69 years old, no gender limit; 2. No underlying diseases in the body; 3. Impacted mandibular third molar; 4. Preoperative CBCT shows that at least one root of the mandibular third molar directly compresses or surrounds the mandibular canal. The root shape is curved, twisted, or enlarged (non-tapered root), and there is no bone between the root and the mandibular canal. separated.
Exclusion criteria
Exclusion criteria: 1. Acute inflammation period or any other contraindications for surgery; 2. Suffering from neurological diseases or taking drugs that affect nervous system function; 3. There is sensory impairment of lower lip or tongue function before surgery; 4. CBCT shows distal resorption of the adjacent mandibular second molar.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Lower lip numbness;time of operation;Intraoperative inferior alveolar neurovascular surgery exposure;Visual Analog Scale; | — |
Secondary
| Measure | Time frame |
|---|---|
| quantitative sensory testing; | — |
Countries
China
Contacts
Public ContactXiangliang Xu
Peking University School and Hospital of Stomatology
Outcome results
None listed