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Cross-sectional study involving the measurement of the width of lingual keratinized tissue (in the implant locations) in fully edentulous patients restored with dental implants. The width of KT will be correlated with the primary outcome, diagnosis of peri-implantitis, defined as Probing depth (PPD)>= 6 mm, inflammation/ bleeding on probing (BOP) and bone loss >= 3 mm from the implant platform.
The study will be conducted with a cross-sectional design. All clinical parameters (width of buccal and lingual keratinized tissue, probing depth, bleeding on probing, plaque, crestal bone loss, gingival index, suppuration) will be collected in mandibular implants in fully edentulous lower arches. The width of lingual band of keratinized tissue (KT) will be be correlated with diagnosis of peri-implantitis or peri-implant mucositis.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Full-arch implant-supported restorations for fully edentulous patients | No interventions will be administered. Instead, clinical parameters will be collected (see detailed description) as well as radiographs of the implants. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Exposure to minimal amount of lingual keratinized tissue width | Other | measurement of clinical parameters |
|
| Measure | Description | Time Frame |
|---|---|---|
| Diagnosis of peri-implantitis (composite outcome made of different outcomes): yes or no (dichotomous) | dichotomous (yes or no) outcome composed by PPD (mm), BoP/SOP (yes or no dichotomous) and bone loss (mm, assessed on radiograph) | Day 1 |
| Measure | Description | Time Frame |
|---|---|---|
| Mucosal recession | Distance (mm) between the prosthetic margin/ locator and the mucosal margin | Day 1 |
| Bleeding on probing (BOP) | dichotomous measure of mucosal inflammation detected via periodontal probe |
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Inclusion Criteria:
Exclusion Criteria:
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Volunteers presenting with integrated implants supporting a fixed or removable full-arch prosthesis. Minimum loading time of 12 months.
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| ID | Term |
|---|---|
| D057873 | Peri-Implantitis |
| D005889 | Gingival Recession |
| ID | Term |
|---|---|
| D010510 | Periodontal Diseases |
| D009059 | Mouth Diseases |
| D009057 | Stomatognathic Diseases |
| D005882 | Gingival Diseases |
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| Day 1 |
| Probing pocket depth (PPD) | distance between the mucosal margin and the bottom of the sulcus/ pocket (mm) | Day 1 |
| Self-assessed Brushing discomfort | Rated by patient on Visual analog score (100 mm) to define the amount of discomfort during brushing, with 0 being the minimum and 100 being maximum discomfort. The patient will be asked to rate their level of discomfort by placing an X over the line. The distance from 0 to the X will be measured and converted into a percentage of the entire length of the line. | Day 1 |
| Crestal bone loss (mm) | Measured on radiograph (in mm) between the implant shoulder and the most coronal location of the crestal bone | Day 1 |
| Suppuration on probing | measured dichotomously (yes/no) when probing an implant | Day 1 |
| Diagnosis of mucositis | dichotomous (yes/no) presence of mucosal peri-implant inflammation in the absence of crestal bone loss | Day 1 |
| D055093 |
| Periodontal Atrophy |