Evaluation of the clinical and radiographic treatment outcomes of immediately loaded three implants by fixed-detachable prostheses for the management of totally edentulous mandibles. The hypothesis is that mandibular immediately loaded fixed detachable restorations supported only by three implants in the inter-foraminal region will not adversely affect the clinical or radiographical treatment outcome.
The ideal amount of implants for edentulous mandible rehabilitation continues to be a subject of scholarly debate. Traditionally, at least four implants are required for fixed detachable prostheses, but increasing implant numbers raises costs and complexity, leading to patient reluctance. Reducing the number to three implants may simplify surgery, minimize trauma, and encourage patient acceptance.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
10
fixed detachable prosthesis
Faculty of Dentistry, Alexandria University
Alexandria, Egypt
Radiographic evaluation
The level of alveolar bone around each implant was evaluated using CBCT. Radiographic assessment of the vertical bone change around each implant was measured and the mean value was calculated. Bone measurements was evaluated at the insertion time then it was evaluated regularly 6 months and 12 months.
Time frame: 12 months
Peri-Implant Probing Depth (PIPD)
Peri-implant probing depth refers to the distance between the gingival margin and the most apically probable portion in millimeters (mm). The peri-implant sulcus depth was measured using a graduated plastic periodontal probe. The probe was held parallel to the long axis of the implant and introduced to the peri-implant sulcus with slight pressure. Measurements was made at four sites around each implant; buccal, lingual, mesial and distal. Probing depth of 1 mm or less was recorded as "1mm", and those exceeding 1 mm but less than 2 mm was recorded as "2mm" and so forth. The mean records for each implant was then calculated.
Time frame: 12 months
Clinical Attachment level (CAL)
It is the distance from the junction implant/abutment to the most apically probable portion, in millimeters. Assessment of the clinical attachment level was performed simultaneously while measuring the peri-implant probing depth.
Time frame: 12 months
Implant stability
Mobility (implant stability) was measured by using RFA (Osstell device instrument). The Osstell unit record numeric value of 1-100 which is referred to as the implant stability quotient (ISQ). The larger the ISQ value recorded indicates the more stable the implant-bone interface. Initial stability was checked at the insertion time then it was evaluated regularly, 6 months and 12 months.
Time frame: 12 months
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