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Relationship between the presence of distal lingual roots of mandibular first molar and localized periodontal destruction

Relationship between the presence of distal lingual roots of mandibular first molar and localized periodontal destruction

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2300074445
Enrollment
Unknown
Registered
2023-08-07
Start date
2023-03-30
Completion date
Unknown
Last updated
2023-08-21

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

Conditions

periodontal disease

Interventions

Case series:None

Sponsors

The Affiliated Stomatology Hospital of Zhejiang University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1) high-quality CBCT images of complete root formation of the mandibular first molar can be obtained 2) each subject had mandibular first molars with distal lingual root

Exclusion criteria

Exclusion criteria: 1)The mandibular first molars were treated with root canal treatment 2)Coronal or post coronal restorations were existed in mandibular first molars 3)The mandibular first molars have root resorption or periapical lesions

Design outcomes

Primary

MeasureTime frame
Bone defect ;—

Secondary

MeasureTime frame
Clinical attachment loss;probing depth;Furcation involvement;—

Countries

China

Contacts

Public ContactFeifei Mao

The Affiliated Stomatology Hospital of Zhejiang University School of Medicine

ffmao@zju.edu.cn+86 133 8621 2681

Outcome results

None listed

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