No registrations found.
ID
Source
Brief title
Health condition
missing teeth in the posterior region
Sponsors and support
Intervention
Outcome measures
Primary outcome
Survival of the implants and reconstruction
Secondary outcome
Success of the prosthesis, condition of the surrounding hard and soft tissue
Background summary
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.
Study objective
Not applicable
Study design
5-year visit of first patient treated: may 2020
5-year visit of last patient treated: june 2022
Intervention
Implant supported 3-unit fixed dental prosthesis
Inclusion criteria
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.
Exclusion criteria
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.
Design
Recruitment
IPD sharing statement
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| NTR-new | NL8357 |
| Other | METc UMCG : M13.145175 |
Summary results
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)