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
| Name | Class |
|---|---|
| Dentsply Sirona Implants and Consumables | INDUSTRY |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
The aim of this study is to evaluate the effect of abutment macro-design on soft and hard tissue responses. This trial is designed as a randomized controlled clinical study in which two groups of fourteen partially edentulous patients will have as part of their treatment one implant placed in the maxillary premolar region.
Implant placement and abutment design will be planned with a computer software for guided implant treatment (SIMPLANT). The surgical implant placement will be performed under manufacturer's protocol by placing the implant platform 1mm below the buccal aspect of the osteotomy (Koutouzis et al 2013). Virtually designed, permanent CAD-CAM fabricated abutments (ATLANTIS, DENTSPLY) with different configuration of the subcritical contour (emergence shape) will be connected to the implants and temporary crowns will be delivered.
Implants of the Group 1 will have permanent abutments with a concave configuration of the subcritical contour (emergence shape).
Implants of the Group 2 will have permanent abutments with a convex configuration of the subcritical contour (emergence shape).
The patients will be restored with single crowns 3 months following implant installation.
A randomization protocol will be produced from a computer-generated list for the distribution of subjects in the two treatment groups.
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Group 1 | Other | Abutments with a concave configuration of the subcritical contour (emergence shape). |
|
| Group 2 | Other | Abutments with convex configuration of the subcritical contour (emergence shape) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Abutment with concave subcritical contour | Other | Implants will be restored with abutments with concave configuration of the subcritical contour |
|
| Measure | Description | Time Frame |
|---|---|---|
| Peri-implant mucosa margin position change | The primary outcome variable will be change on peri-implant mucosa margin position. | Day 7-10 to the Day 360 |
Not provided
Not provided
General Inclusion criteria:
Specific Inclusion criteria:
General Exclusion Criteria:
Specific Exclusion criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Theofilos Koutouzis, DDS | Nova Southeastern University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Nova Southeastern University | Fort Lauderdale | Florida | 33328 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 25216143 | Background | Koutouzis T, Neiva R, Nair M, Nonhoff J, Lundgren T. Cone beam computed tomographic evaluation of implants with platform-switched Morse taper connection with the implant-abutment interface at different levels in relation to the alveolar crest. Int J Oral Maxillofac Implants. 2014 Sep-Oct;29(5):1157-63. doi: 10.11607/jomi.3411. | |
| 21542730 |
Not provided
Not provided
Not provided
| ID | Term |
|---|---|
| D009066 | Mouth, Edentulous |
| ID | Term |
|---|---|
| D009059 | Mouth Diseases |
| D009057 | Stomatognathic Diseases |
| D014076 | Tooth Diseases |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Abutment with convex subcritical contour | Other | Implants will be restored with abutments with convex configuration of the subcritical contour |
|
| Koutouzis T, Koutouzis G, Tomasi C, Lundgren T. Immediate loading of implants placed with the osteotome technique: one-year prospective case series. J Periodontol. 2011 Nov;82(11):1556-62. doi: 10.1902/jop.2011.100751. Epub 2011 May 4. |