Not applicable
ID
Bron
Verkorte titel
Aandoening
missing teeth in the posterior region
Ondersteuning
Onderzoeksproduct en/of interventie
Uitkomstmaten
Primaire uitkomstmaten
Survival of the implants and reconstruction
Achtergrond van het onderzoek
Limited evidence exists on the results of implementing recent technical developments, such as coded healing abutments and intra-oral scanners, in the fabrication of multi-unit fixed dental prosthesis (FDP). Similarly, evidence of the usefulness of monolithic zirconia, to combat prosthetic framework fracture and chipping of veneering porcelain, is still limited. This clinical case series study aims to test the applicability of the aforementioned techniques in the fabrication of 3-unit FDP’s on two dental implants.
Patients with three missing units in the posterior region of either the maxilla or mandible received two dental implants. After healing, coded healing abutments were placed. Full-arch intra-oral scans were made to produce individual titanium abutments and a 3-unit FDP. Peri-implant tissues were assessed two weeks after placement of the FDP and after five years. Patient reported outcome measures were registered prior to the treatment and after five years. The quality of the FDP’s was assessed using modified USPHS (United States Public Health Service) criteria, after five years of service.
Doel van het onderzoek
Not applicable
Onderzoeksopzet
5-year visit of first patient treated: may 2020
5-year visit of last patient treated: june 2022
Onderzoeksproduct en/of interventie
Implant supported 3-unit fixed dental prosthesis
Publiek
Wetenschappelijk
Belangrijkste voorwaarden om deel te mogen nemen (Inclusiecriteria)
This prospective case series study considered all consecutive patients were eligible to participate, if they had at least three adjacent missing teeth in the posterior region of the mandible or maxilla and were treated with a 3-unit FDP on 2 implants. All patients were screened using clinical and radiographic examinations to determine if they met all of the following inclusion criteria:
- over 18 years of age and capable of understanding and giving informed consent;
- sufficient horizontal and vertical space to place a three-unit FDP;
- sufficient bone levels at the proposed implant sites to place implants with a length of at least 8.5mm and a width of 4mm;
- the presence of natural antagonistic teeth or a prosthetic construction.
Belangrijkste redenen om niet deel te kunnen nemen (Exclusiecriteria)
Any of the following was regarded as a criterion for exclusion from the study:
- uncontrolled pathological processes in the oral cavity;
- known or suspected current malignancy;
- history of radiation therapy in the head and neck region;
- history of chemotherapy within 5 years prior to surgery;
- systemic or local disease, condition or medication that could compromise postoperative healing and/or osseointegration;
- is a smoker (and intends to continue);
- regular alcohol and/or drug use.
Opzet
Deelname
Voornemen beschikbaar stellen Individuele Patiënten Data (IPD)
Opgevolgd door onderstaande (mogelijk meer actuele) registratie
Geen registraties gevonden.
Andere (mogelijk minder actuele) registraties in dit register
Geen registraties gevonden.
In overige registers
| Register | ID |
|---|---|
| NTR-new | NL8357 |
| Ander register | METc UMCG : M13.145175 |
Samenvatting resultaten
Christiaan W.P. Pol, DDS / Gerry M. Raghoebar, DDS, MD, PhD / Marco S. Cune DDS, PhD / Henny J.A. Meijer, DDS, PhD (submitted September 2019)