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Effect of incision design of impacted lower third molars extraction on periodontal condition and subgingival microflora of adjacent second molars: A randomized controlled trial

Effect of incision design of impacted lower third molars extraction on periodontal condition and subgingival microflora of adjacent second molars: A randomized controlled trial

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2200057020
Enrollment
Unknown
Registered
2022-02-26
Start date
2022-03-05
Completion date
Unknown
Last updated
2023-09-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Impacted tooth and periodontal diseases

Interventions

the envelop flap group:the envelop incision
the triangular flap group:the triangular incision
the modified triangular flap group:the modified triangular incision

Sponsors

Shanxi Medical University School and Hospital of Stomatology
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. All extracted ILTMs were completely impacted (completely intramuscular) or submucosal (completely submucosal), which were closely related to the position of ASM; 2. According to panoramic radiographs, BII mesial ILTM patients with similar technical difficulty were selected. ASM distal alveolar ridge is 4-5mm from the enamel to alveolar bone junction; 3. ILTM and ASM have no local inflammation or other lesions; 4. ASM is located in the dental arch in a vertical position, and the Angle between the long axis of ASM and the crown of ILTM is 101 degrees ~ 169 degrees; 5. The operation time of ILTM extraction is less than 30min; 6. The wound was closely sutured after ILTM removal; 7. The patient voluntarily participated in clinical examination and subgingival plaque sampling with good compliance and regular follow-up.

Exclusion criteria

Exclusion criteria: 1. Patients with jaw fracture, chronic systemic diseases (diabetes, cardiovascular diseases, etc.), and smoking habits; 2. Pregnant or lactating patients; 3. Patients with chronic periodontal disease; 4. Patients who have taken steroids or non-steroidal anti-inflammatory drugs, probiotics, antibiotics, and bisphosphonates within the last 90 days; 5. Patients with jaw cyst or tumor.

Design outcomes

Primary

MeasureTime frame
Probing depth;Attachment loss;Subgingival microbial diversity;Subgingival microbial composition;

Secondary

MeasureTime frame
Plaque index;Blooding on probing;

Countries

China

Contacts

Public ContactWang Xing
13934224604@163.com+86 19834048984

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026