periodontitis
Conditions
Interventions
single tooth root group:None
Two tooth root group:None
three tooth root group:None
Sponsors
Stomatology Hospital,Zhejiang University School Medicine
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: (1) Aged between 18 and 65 years. (2) Received treatment at the Periodontal Department of the Stomatological Hospital Affiliated to Zhejiang University School of Medicine between April 1, 2017, and December 31, 2022; was diagnosed with periodontal disease and had a preliminary periodontal examination at that time. (3) CBCT scans were taken within 3 months before and after the preliminary periodontal examination. (4) There is no absence of either the first or second maxillary molar on one side; in addition, the second maxillary molar has not undergone root canal treatment, and there are no signs of root fracture, root resorption, or periapical lesions.
Exclusion criteria
Exclusion criteria: (1) Presence of jaw and facial cysts or tumors, or maxillary fractures; (2) Unclear CBCT images, with restorations, implants, metal fillings, etc. in the posterior maxillary region that affect the quality of the images and the accuracy of the measurements; (3) Patients who smoke, have diabetes, or have undergone radiation or chemotherapy; (4) Patients who have been taking medications that affect bone metabolism or bone healing for a long time (such as immunosuppressants, phenytoin sodium, bisphosphonates, etc.).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Height of the palatal bone defect; | — |
Secondary
| Measure | Time frame |
|---|---|
| Height of the bone defect on the mesial buccal side;Height of the bone defect on the distobuccal side;Height of the mesial bone defect;Height of the distal bone defect;The thickness of the mesial buccal bone plate at the 1/2 position corresponding to the mesial buccal root;The thickness of the distal bone plate at the 1/2 position corresponding to the distal buccal root;Thickness of the palatine bone plate at the 1/2 position of the palatal root;Root column length;Forked lesion;Probing depth;Probing bleeding;Attachment loss;Number of root canals; | — |
Countries
China
Contacts
Public ContactDing Peihui
Stomatological Hospital Affiliated to Zhejiang University School of Medicine
Outcome results
None listed