Comparison of Abutments Engagement Configurations in Implant Supported Fixed Partial Dentures

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity of Jordan

About this trial

This study focuses on the comparison of different implant abutment connections configurations in implant supported screw retained fixed dental prostheses assessing their clinical and radiographic outcomes and to evaluate which implant abutment connection configuration have less biological and technical complications.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Adult patients with edentulous span in the posterior mandible of 3 missing teeth.

Candidates for an implant supported FDP in the posterior mandible.

Teeth in area of interest extracted at least 3 months prior.

Bone grafting not needed or only minor GBR needed.

Disqualifiers

Patients with edentulous span of less than 3 missing teeth (not eligible to receive a 3 unit 2 implant supported FDP)

Patients with healing period of extraction sites less than 3 months.

Extensive bone grafting required prior to or during implant placement.

Active Bruxism.

Trial design

Design model

Parallel

Treatments tested in this trial

  • hexed non hexed

    Device

    A 3-unit screw-retained implant bridge over two conical internal hex implants will be supported using one hexed and one non-hexed abutment.

  • non-hexed non-hexed

    Device

    a 3-unit screw-retained implant bridge over two conical internal hex implants will be supported using two non-hexed abutments

Treatment groups

24 Participants
are divided into 2 treatment groups
Group A: hexed non hexedExperimental treatment 1 intervention
Group B: non hexed non hexedActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Marginal Bone Loss

Marginal bone level changes by standardized periapical radiographs.

Time frame
Baseline (day of definitive loading) and at 1-year follow-up post-loading.

Secondary outcomes

1

Technical or mechanical complications

screw loosening, screw fracture, abutment or implant fracture, prosthesis fracture or chipping

Time frame
1 year
2

Biological complications

Peri implant bone loss, early implant failure.

Time frame
1 year
3

Patient satisfaction

To be assesses by oral health impact profile-14 (OHIP-14), The scale includes 14 items covering various aspects of oral health-related quality of life, Score Range: from 0 to 56, Higher OHIP-14 scores indicate a worse outcome, representing a greater negative impact of oral health issues on quality of life, while lower scores suggest a better outcome or less impact on the individual's daily life.

Time frame
1 year

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.