Geneva, Jan. 12 -- International Clinical Trials Registry received information related to the study (ChiCTR2500115201) titled 'The influence of different anatomical root shapes of the maxillary second molar on alveolar bone loss in patients with periodontitis: a retrospective study' on Dec. 23, 2025.

Study Type: Observational study

Study Design: Factorial

Primary Sponsor: Stomatology Hospital,Zhejiang University School Medicine

Condition: periodontitis

Intervention: single tooth root group:None Two tooth root group:None

Recruitment Status: Not Recruiting

Phase: Retrospective study

Date of First Enrollment: 2023-11-14

Target Sample Size: single tooth root group:300;Two tooth root group:300;three tooth root group:300;

Count...