About this trial
This is an observational study. The participants in this study will be patients at the Graduate Periodontics Clinic at The Ohio State University who are planning to get a gingival graft to treat their gum recession. Gingival grafts are a common way to treat this recession. The grafting surgery is not part of the study.
The main purpose of this study is to better understand the normal healing of a gum graft. In order to do that, the investigators will take different kinds of measurements.
1. It is common for the tissue around the graft to have some swelling after the surgery. The investigators will measure the amount of swelling at different times as the graft heals. This will be done with a digital scanner which is passed over the area. 2. A device which measures blood flow will be used to see how new blood vessels are forming. This is also a device which is only passed over the area, so it is not invasive. 3. Saliva samples will be taken from around the teeth using sterile paper strips. This fluid will be analyzed for substances related to wound healing. 4. Participants will fill out questionnaires about their experience with the graft healing.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Clinical (oral) Ohio State University College of Dentistry patient, treatment planned for SCTG procedure
Miller Recession Class I, II, or III
Teeth; Maxillary or mandibular incisors, canines, pre-molars
Gingival Index ≤ 1
Disqualifiers
Carious lesions on the tooth selected for surgical root coverage
Taking any medications affecting the gingiva and/or oral mucosa: phenytoin, calcium channel blockers , cyclosporin A, immunostimulants/ immunomodulators
Quantitative and/or qualitative defects on host inflammatory cells
Organ transplant(s)
Trial population
The patients will be recruited from the patient pool of the Ohio State graduate periodontics clinic. These patients are referred to the Ohio State clinics to treat gum recession. Potential participants will be recruited after they have been treatment planned for subepithelial connective tissue grafting in the periodontics clinic. At the time of treatment planning, the investigators will present the option to participate in the study.
Trial design
Cohort
Prospective
Treatments tested in this trial
Gingival graft surgery to treat gingival recession
Procedure/SurgerySubepithelial connective tissue grafting (SCTG) is a common procedure for the treatment of gingival recession and involves the autotransplantation of connective tissue from a donor site to the site of recession.
Treatment groups
Trial outcomes
Primary outcomes
Tissue Volume Change
3-dimensional digital scans will be taken with an intraoral scanner. Once captured, pre- and post-treatment digital image files will be overlapped and analyzed for dimensional changes in the area of the graft. Using digital software, the investigators will calculate the percentage tissue volume change between each time point, using the post-operative scan as a reference.
Correlation with Graft Exposure
Surgical approaches for subepithelial connective tissue grafting can vary depending on site anatomical characteristics. The choice is often dictated by the anatomy of the site and the severity of the recession and sometimes by operator preference. For the purpose of this study, exposure of the graft will be analysed as an incidental occurrence as surgical needs dictate whether the graft will be exposed or not.
Inflammatory Cytokines
Saliva samples will be taken from around the teeth at the surgical site by using sterile paper strips. These will be used to study the release of inflammatory cytokines.
Microvascular blood flow
Laser Doppler Flowmetry (LDF) is a method of determining the real-time microvascular blood flow in soft tissue. LDF will allow the investigators to measure revascularization of the connective tissue graft and see if the degree of soft tissue dimensional change correlates with LDF measurements at certain time points.
Secondary outcomes
Thickness of the Gingival Flap and Graft
Gingival biotype refers to biological groupings of gingival phenotypes. Biotype has repeatedly been shown to influence clinical outcomes and tissue responses. In this study, the investigators will take biotype into account by measuring the thickness of the flap after it has been raised using tissue callipers. Additionally, the investigators will measure the thickness of the graft using the same method. These measurements will allow the investigators to determine if the biotype of the patient relates to the amount of edema post-surgery, and if that edema is primarily occurring in the flap or the graft itself.
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