An interventional study of implant placement in Edentulous Alveolar Ridge, sponsored by Tanta University. Completed. Open to participants aged 40 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-05-16.
Sponsored by Tanta University · Not applicable, Interventional, and Treatment
The purpose of this study was to assess the effect of Bio-Hpp versus Co-Cr custom abutments in fixed-detachable implant-supported mandibular partial dentures clinically and radiographically in Class I Kennedy classification (split-mouth study)
Participants with bilateral partial edentulism in the posterior mandible received two implants at the positions of the second premolar and second molar on both sides; one side was restored with BioHpp based screw-retained FDP (test group) and the other side was restored with Co-Cr based screw-retained FDP (control group). All patients were clinically examined at the time of prosthesis insertion, and 6,12 months later for fracture of implant or framework, fracture, or looseness of the screw, veneer chipping, and fractures, modified bleeding index, modified plaque index, peri-implant probing depth, as well as radiographically for marginal bone loss
244 studies on the registry are indexed under Mouth, Edentulous; 37 are open to participants now.
This study's enrollment of 15 is below the median of 30 across 187 interventional studies indexed under Mouth, Edentulous.
Browse Mouth, Edentulous studies →Tanta University is the lead sponsor of 963 studies on the registry; 304 are open to participants now.
Of its 16 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
Counted across the registry records on this site, refreshed daily.
Mandibular posterior edentulous with the first premolar as the last standing abutment tooth bilaterally.
Exclusion Criteria:
Patients with active infection or inflammation or flabby tissue in the areas intended for implant placement.
the participants received Co-Cr based screw-retained implant supported prosthesis at one side of the lower jaw
Procedure: implant placement
The participants received Bio-Hpp based screw-retained implant-supported prosthesis at the other side
Procedure: implant placement
2 implants were placed at position of lower 2nd premolar and 2nd molar
Also known as: final prosthesis was constructed on the implants
marginal bone loss around implants
Marginal bone level was measured from the implant shoulder to the first bone to implant contact on the mesial and distal sides of the implant on digital standardized periapical radiograph using the long cone paralleling technique
Time frame: 12 months
modified plaque index
Plaque adherent to the implants was quantified at four surfaces: buccal, lingual, mesial, and distal using a plastic periodontal probe after air drying for the implant and gingiva. The four sides for each implant were scored 0-3 according to the following criteria: Score 0: No plaque detected. Score 1: Plaque can be detected by running a probe across the marginal surface of the implant. Score 2: Plaque can be seen by naked eye. Score 3: Abundance of plaque.
Time frame: 12 months
modified bleeding index
A plastic periodontal probe was passed along the gingival margin adjacent to the implant and the following scores were given according to Mombelli and Lang Score 0: No bleeding with slight pressure on the mucosa using periodontal probe. Score 1: Isolated bleeding spots visible. Score 2: Blood forms a confluent red line on margin. Score 3: Heavy or profuse bleeding
Time frame: 12 months
probing depth
., the peri- implant probing pocket depth is measured around the surfaces of the implants in four areas (mid-buccal, mid-lingual, med-mesial, mid-distal) using plastic periodontal probe\* which was inserted with light force and parallel to long axis of implant
Time frame: 12 months
mechanical complications
framework fracture, screw loosening, screw fracture and chipping or fracture of veneer layer
Time frame: 12 months after loading
No study locations are listed for this record.
Plan to share: No
No publications or documents are linked to this record.
This study is completed, as verified in May 2023. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Tanta University