Free Gingival Graft, Peri-implant Health, Peri-implant Mucositis
Conditions
Brief summary
This study aims to evaluate the effects of autogenous grafts harvested from different palatal regions on the peri-implant mucosa when applied during second-stage dental implant surgery. Clinical, radiographic, and digital assessment methods will be used to investigate the early effects of these grafts on peri-implant mucosal width and thickness. In addition, peri-implant tissue health and patient-reported outcomes will be evaluated to compare the effectiveness of the grafting techniques in peri-implant soft tissue management.
Interventions
This group will receive palatal grafts including marginal and interdental gingiva. This coronal palatal tissue will be applied to the peri-implant tissue at the second-stage implant surgery.
This group will receive palatal grafts harvested from approximately 1.5 mm apical to the gingival margin. This graft will be applied to the peri-implant tissue at the second-stage implant surgery.
Sponsors
Study design
Masking description
Single blinded
Intervention model description
Randomized controlled clinical trial with parallel groups
Eligibility
Inclusion criteria
* Age over 18 years * Systemically healthy patients * Presence of premolar or molar tooth loss in the mandible * Adequate mesiodistal and interocclusal space for implant and restoration placement * At least four months elapsed since tooth extraction * Alveolar bone width of at least 6 mm and sufficient alveolar bone height to allow implant placement without compromising anatomical structures * Full-mouth plaque and bleeding scores less than 20% * Presence of opposing teeth in occlusion * Keratinized mucosa width in the relevant region less than 2 mm * Keratinized mucosa thickness in the relevant region of 2 mm or less * Presence of a healthy second premolar in the maxilla * Provision of written informed consent and permission for the use of data for research purposes
Exclusion criteria
* Poor oral hygiene * Uncontrolled periodontal disease * Pregnancy or lactation at any stage of the study * Uncontrolled diabetes mellitus * Immunocompromised patients * Previous radiotherapy to the head and neck region * Diseases or medications affecting bone metabolism * Antibiotic use within the three months prior to the procedure * Smoking more than 10 cigarettes per day * Pre- or simultaneous bone augmentation prior to implant placement * Lack of primary stability at the time of implant placement
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Peri-implant Mucosal Thickness | Pre-operative and post-operative (before implant placement, 3rd month (second-stage implant surgery), 6th month after implant placement, and 12th month after prosthetic loading) | The primary outcome is the change in peri-implant mucosal thickness measured at four time points using clinical and digital methods. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Keratinized Mucosa Width | Pre-operative and post-operative (before implant placement, 3rd month (second-stage implant surgery), 6th month after implant placement, and 12th month after prosthetic loading) | Keratinized tissue width will be measured from the mid-buccal aspect of the edentulous area. |
| Vestibular Depth | Pre-operative and post-operative (before implant placement, 3rd month (second-stage implant surgery), 6th month after implant placement, and 12th month after prosthetic loading) | Vestibular depth is defined as the vertical distance between the midcrestal area and the point of greatest concavity of the mucosal fold. |
| Modified Plaque Index | Postoperative 6th month after implant placement and 12th month after prosthetic loading | Modified plaque index will be measured at six points around each implant by an index with a minimum value of 0 and a maximum of 3. |
| Modified Bleeding Index | Postoperative 6th month after implant placement and 12th month after prosthetic loading | Modified bleeding index will be measured at six points around each implant by an index with a minimum value of 0 and a maximum of 3. |
| Peri- implant Probing Depth | Postoperative 6th month after implant placement and 12th month after prosthetic loading | Peri-implant probing depth will be measured at six points around each implant. |
| Mucosal Recession | 12th month after prosthetic loading | Mucosal recession will be measured as the distance between the implant abutment interface and the mucosal margin. |
| Marginal Bone Level | Pre-operative and post-operative (before implant placement, 3rd month (second-stage implant surgery), 6th month after implant placement, and 12th month after prosthetic loading) | Marginal bone level will be measured on periapical radiographs taken by the parallel technique. |
| Pink Esthetic Score (PES) | Postoperative 3rd month (second-stage implant surgery) and 12th month after prosthetic loading | Peri-implant soft tissue esthetics will be evaluated using the Pink Esthetic Score with a minimum value of 0 and a maximum of 14. |
| Postoperative Pain Assessment | Postoperative 14 days (daily after graft application) | Postoperative pain as patient-reported outcome will be recorded using a visual analog scale (VAS; 0-100). |
| Analgesic Consumption | Postoperative 14.days (after graft application) | The amount of analgesic medication used (mg) will be recorded. |
| Patient Satisfaction | Postoperative 14.days (after graft application) | Patient satisfaction with the surgical procedure will be assessed using a three-point Likert scale (0 = no, 1 = maybe, 2 = yes). |
| Patient-Perceived Esthetic Outcome | 12th month after prosthetic loading | Patient perception of peri-implant soft tissue esthetics will be evaluated using a visual analog scale (VAS; 0-100). |
| Oral Health-Related Quality of Life | Postoperative 3rd month (second-stage implant surgery) and 12th month after prosthetic loading | Oral health-related quality of life will be assessed using the Oral Health Impact Profile (OHIP-14) questionnaire. |
Countries
Turkey (Türkiye)