One missing or failing tooth being a molar in the maxilla or mandible
Conditions
Interventions
All patients are treated with an Astra Tech Implant EV. After a period of 3 months a screw-retained zirconia restoration is placed.
Sponsors
Dept. Oral and Maxillofacial Surgery, University Medical Center Groningen and Dentsply Sirona Implants, Mölndal, Sweden (dental implants and crowns)
Eligibility
Inclusion criteria
Inclusion criteria: All patients referred to our department for single-tooth implant therapy in the maxillary and mandibular posterior region are considered for inclusion. The following inclusion criteria are applied: - one missing or failing tooth being a molar in the maxilla or mandible; - enough bone to reach initial stability of the dental implant; - at least 18 year of age; - ASA score = 2 (Smeets et al. 1998); - adequate oral hygiene, i.e. Plaque Index Score (Silness and Lo?, 1964) and Gingival Index Score (Silness and Lo?, 1964) = 1; - mesial-distal width of diastema at least 8 mm; - patient is capable of understanding and giving informed consent.
Exclusion criteria
Exclusion criteria: Exclusion criteria are: - presence of active clinical periodontal disease as expressed by probing pockets depths = 4 mm and bleeding on probing; - presence of peri-apical lesions or any other abnormalities in the posterior region as determined on a radiograph; - smoking; - a history of radiotherapy to the head and neck region; - use of intravenous bisphosphonates shorter than 10 years ago.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Peri-implant bone level change | — |
Secondary
| Measure | Time frame |
|---|---|
| Clinical items and patient satisfaction | — |
Contacts
Public ContactHenny J.A. Meijer
University Medical Center Groningen
Outcome results
None listed