Clinical Outcome of Two-piece Zirconia Implants in Immediate Implant Placement

Clinical Outcome of Two-piece Zirconia Implants in Immediate Implant Placement - a Prospective Randomized Controlled Clinical Trial

The purpose of the study is to test whether a two-piece zirconia implant is as reliable in the indication of immediate implant placement as a standard titanium implant.

Inclusion Criteria:

Patients giving informed consent to participate in the clinical trial and fulfil the following criteria will be included in the investigation:

1. good oral hygiene standard;
2. good general health;
3. 18 years or older;
4. non-smokers;
5. presence of single-tooth or multiple gaps in the mandible or the maxilla;
6. intact facial bone wall;
7. sufficient bone volume to support an implant of at least 10 mm length.
8. Teeth with removable periapical lesions are included.

Exclusion Criteria:

Primary exclusion criteria are as follows:

1. parafunctional habits;

2. active periodontitis;

3. smoking;

4. pregnancy;

5. acute or chronic medical conditions for which implant therapy has always been considered a contraindication: uncontrolled diabetes (HbA1c >8.0%), mucosal disease, untreated periodontitis, immunological disorders, active malignancy, alcoholism, condition after radiation therapy to the head and neck area and antiresorptive therapy.

   Secondary exclusion criteria will be applied at surgical procedure:

6. loss of facial bone wall due to extraction procedure;

7. insufficient primary stability (less than 32Ncm insertion torque).