Periodontitis
Conditions
Brief summary
Main Purpose: To evaluate the effect of photodynamic therapy on soft tissue healing after tooth extraction at periodontal infection site, and to compare the effect on pain degree and bone tissue remodeling after tooth extraction.
Detailed description
The aim of this study is to evaluate the effect of photodynamic therapy (PDT) on soft tissue healing and bone remodeling in tooth extraction sockets after tooth extraction. The enrolled patients will be randomized into two groups. The control group used conventional tooth extraction to clean the wound, and the experimental group used photodynamic therapy to help clean the wound. Seven days and 14 days after extraction, the area of extraction socket was measured, the healing rate of extraction socket was calculated, and Landry, Turnbull and Howley soft tissue healing index was measured. The degree of pain was recorded at 6h, 1 day, 2 days and 3 days after tooth extraction. Bone remodeling indexes were measured at 1 month after tooth extraction.
Interventions
DRUGDental diode laser device Paiwei™（Zhengzhou Gata biotechnology Co.,Ltd.,China） which was 650-670nm with a power of 160mw-220mw.
The tooth extraction sockets were filled with photosensitizer methylene blue. The guide head of the laser periodontal therapy instrument (Dental diode laser device Paiwei™（Zhengzhou Gata biotechnology Co.,Ltd.,China） which was 650-670nm with a power of 160mw-220mw.) was placed in the tooth extraction sockets to probe and move around the tooth extraction sockets for 1 minute. At the end of irradiation, a cotton ball dipped in saline was used to wipe the guide head and rinse the photosensitizer out of the socket
Sponsors
The Dental Hospital of Zhejiang University School of Medicine
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No
Inclusion criteria
* Age range from 18 to 65 years old; * Patients with extensive periodontitis of the whole mouth; * There was a deep periodontal pocket with PD≥5mm and at least one adjacent tooth at the extraction site; * Periodontitis was controlled, and the extraction site and adjacent teeth were not in the acute inflammation or infection stage; * The extraction site has a hopeless prognosis or no preservation value, and it is the first and second molars or maxillary wisdom teeth that erupt in a positive position
Exclusion criteria
* pregnant and lactating women; * patients with systemic diseases that may affect the ability of postoperative healing (such as patients with radiotherapy and chemotherapy, history of hematological diseases, and uncontrolled disease) Diabetes mellitus, etc.); * long-term use of drugs known to affect bone metabolism or mucosal healing such as bisphosphonates and non-steroidal anti-inflammatory drugs; * smoking \> 10 cigarettes per day; * root breakage or gingival tear occurred during tooth extraction.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Wound healing rate at 7 days | baseline;at 7 days | （The size of the tooth extraction wound area at 7 days）/(The size of the tooth extraction wound area at baseline) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Landry, Turnbull and Howley soft tissue healing index | baseline, at 7 days; at 14days | Soft tissue index of healing wound after tooth extraction |
| Degree of pain | at 6 hours; at 1 day; at 2 days; at 3 days | VAS score was used to evaluate the pain degree of tooth extraction trauma. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
| Changes in Bone Mineral density | baseline, at 1 month | Changes in Bone Mineral density |
| Bone height changes | baseline, at 1 month | Bone height changes |
| Wound healing rate at 14 days | baseline;at 14 days | （The size of the tooth extraction wound area at 14 days）/(The size of the tooth extraction wound area at baseline) |
Countries
China
Outcome results
None listed