Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
The purpose of the study is to determine if there is an association between the intaglio shape of full-arch implant-supported prosthesis and marginal bone level around implants. The intaglio shape can be present as concave or convex and, depending on that, it can lead to more plaque accumulation on the fitting surface of the prosthesis.
Null Hypothesis (H0): Full-arch implant supported prosthesis with an increased depth of the intaglio shape demonstrate similar marginal bone levels as prosthesis with a reduced depth of the intaglio surface.
Alternative Hypothesis (H1): Full-arch implant supported prosthesis with an increased depth of the intaglio shape demonstrate increased/reduced marginal bone levels compared to prosthesis with a reduced depth of the intaglio surface.
The investigators will review dental records from the university and call eligible individuals for an appointment. During the research visit, the investigators will take new x-rays for marginal bone level assessment and a digital scan of the prosthesis to assess the shape of the intaglio. Also, remove the prosthesis, perform clinical measurements and collect plaque samples from the prosthesis and the implant sulcus. then, implants and prosthesis will be cleaned and placed in position.
The study will have only one appointment where every measurement will be assessed in this visit.
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Patients Rehabilitated with full-arch implant-supported prosthesis | All patients that are rehabilitated with full-arch implant-supported prosthesis |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Full arch | Device | design |
|
| Measure | Description | Time Frame |
|---|---|---|
| Evaluation of the depth of the shape of the intaglio surface of full-arch and its association with increased marginal bone level. | After the prosthesis is scanned, and evaluation of the 3D file of the prosthesis will occur. A virtual line will be traced between the Buccal to the Palatal/Lingual flange of the prosthesis. In the middle point of this line, a perpendicular line will be traced in direction of the fitting surface of the prosthesis, intaglio, and this distance will be measured in mm. | The measurements will be assessed during the unique visit of the patient in the study. |
| Measure | Description | Time Frame |
|---|---|---|
| Probing Depth of the implants | Using a periodontal probe we will register Probing Depth in 6 sites per implant. All measures will be in mm. | The measurements will be assessed during the unique visit of the patient in the study. |
| Bleeding on Probing of the implants |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
All patients treated with a full-arch implant-supported prothesis from the University of Pittsburgh will be screened for inclusion in the study.
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Andrea Ravida, DDS, MS, PhD | Program Director of the Periodontics and Implant Dentistry Department | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Pittsburgh, School of Dental Medicine | Pittsburgh | Pennsylvania | 15213 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 3507627 | Result | Mombelli A, van Oosten MA, Schurch E Jr, Land NP. The microbiota associated with successful or failing osseointegrated titanium implants. Oral Microbiol Immunol. 1987 Dec;2(4):145-51. doi: 10.1111/j.1399-302x.1987.tb00298.x. No abstract available. | |
| 29926949 | Result | Araujo MG, Lindhe J. Peri-implant health. J Periodontol. 2018 Jun;89 Suppl 1:S249-S256. doi: 10.1002/JPER.16-0424. |
Not provided
Not provided
Not provided
| ID | Term |
|---|---|
| D057873 | Peri-Implantitis |
| ID | Term |
|---|---|
| D010510 | Periodontal Diseases |
| D009059 | Mouth Diseases |
| D009057 | Stomatognathic Diseases |
Not provided
Not provided
Not provided
Not provided
Not provided
Bacterial collection will be collected from the implant sulcus and from the abutments of the prosthesis.
Using a periodontal probe we will register Bleeding in 6 sites using the bleeding indexes modified for dental implants. |
| The measurements will be assessed during the unique visit of the patient in the study. |
| Modified Plaque Index | Plaque accumulation will be evaluated using the modified plaque index adapted for dental implants. | The measurements will be assessed during the unique visit of the patient in the study. |
| Marginal Recession | The distance, in mm, between the implant platform and the mucosal margin. | The measurements will be assessed during the unique visit of the patient in the study. |
| Suppuration | Assessed by the presence/absence of suppuration after gentle probing of the implants. | The measurements will be assessed during the unique visit of the patient in the study. |
| Keratinized mucosa width | Measured from the mucosal marginal level of the implants to the mucogingival junction. The band of keratinized mucosa will be characterized as narrow < 2mm and wide > 2mm. | The measurements will be assessed during the unique visit of the patient in the study. |