Edentulous Alveolar Ridge in Mandible
Conditions
Keywords
SFI bar, milled bar, bone loss, mucosal complications, prosthetic complications
Brief summary
The aim of this study will be to evaluate the marginal bone loss and prosthetic complications of stress-free implant (SFI) and milled bars used to assist mandibular 4-implant overdentures after 3 years
Detailed description
Eight edentulous participants with insufficient stability of mandibular dentures will receive 4 implants in the mandibular ridge (2 implants in the canine areas and 2 implants in the first molar areas), and then after 3 months, patients will be randomly assigned into 2 groups; 1) group 1: will include 4 participants who will receive milled bar overdentures, and 2) group 2: will include 4 participants who will receive SFI bar overdentures. For both groups, marginal bone loss will be evaluated using the standardized digital periapical films at the time of insertion, 6 months, 1 year, and 3 years after insertion. Prosthetic and mucosal complications will be evaluated after 3 years.
Interventions
PROCEDUREstress free implant bar
SFI bar was sectioned and adjusted on the model for more convenience and to save the time of the appointment. The bar (Cendres Metaux, Switzerland) abutments were screwed to the implant analogues.
PROCEDUREmilled bar
bar abutments were attached to the analogues and scan bodies were threaded into the bar abutments. The cast was scanned using a lab scanner (Ceramill, Amann Girrbach, Germany). The milled bar was selected from the software (Exocad DentalCAD) and designed digitally to connect the implants.
Sponsors
Fayoum University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* mandibular edentulous ridge
Exclusion criteria
* severe atrophy in mandibular ridge
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| marginal bone loss | time of insertion, 6 months, 1 year and 3 years |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| prosthetic complications as denture fracture, adjustment of denture margins, acrylic teeth wear/fracture, abutment fracture, abutment screw loosening/fracture, prosthetic screw loosening/fracture, metal housing loosening/wear, clip wear/replacement | 3 years | include; denture fracture, adjustment of denture margins, acrylic artificial teeth wear or fracture, abutment fracture, abutment screw loosening or fracture, prosthetic screw loosening or fracture, metal housing loosening or wear, plastic clip wear or replacement. |
| mucosal complications include; mucositis/soreness of mandibular mucosa, ulcer of mandibular mucosa, hyperplasia under the bar | 3 years | include; mucositis/soreness of mandibular mucosa, ulcer of mandibular mucosa, hyperplasia under the bar |
Countries
Egypt
Outcome results
None listed