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24 patients with missing premolar teeth and healed sockets will be recruited. They will be randomized into two groups to supplied with tissue-level (n=12) or bone-level (n=12) 10-mm long 4-mm wide zirconia implants. Primary and secondary stabilities will be measured with International Stability Quotient (ISQ) device. After 3 months, ceramic crowns will be supplied. Implant survival rates and parameters in relation to periimplant soft-tissues and bone health and anatomy will be recorded and evaluated after 1, 3 and 5 years.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Tissue-level | Active Comparator | Two-piece zirconia implants with tissue-level platform will be supplied to the single gap premolar regions in maxillae. |
|
| Bone-level | Experimental | Two-piece zirconia implants with bone-level platforms will be supplied to the single gap premolar regions in maxillae. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Zirconia dental implants | Device | Dental implants produced from zirconia material, either wit tissue-level or bone-level platform. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Crestal bone loss (mm) | Loss of marginal bone in mm | baseline, 1-year, 3-years, 5 years |
| Measure | Description | Time Frame |
|---|---|---|
| Probing depth (mm) | Probing pocket depth measured with periodontal probe | baseline, 1-year, 3-years, 5 years |
| Bleeding on probing (BOP) | Bleeding provoked by probing |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Rok Gašperšič, PhD | Contact | 0038615224998 | rok.gaspersic@mf.uni-lj.si |
| Name | Affiliation | Role |
|---|---|---|
| Rok Gašperšič, PhD | faculty of medicine | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University Medical Centre | Recruiting | Ljubljana | 1000 | Slovenia |
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| baseline, 1-year, 3-years, 5 years |
| Volumetric tissue change | Sequential intraoral scanning | 1-year, 3-years, 5 years |