Hassan, H., El Shimy, A., Abdalazim, T., Hanno, K. (2025). EVALUATION OF TWO DIFFERENT ATTACHMENT SYSTEMS IN MANDIBULAR OVERDENTURES RETAINED WITH TWO INCLINED IMPLANTS (A RANDOMIZED CONTROLLED CLINICAL TRIAL). Alexandria Dental Journal, 50(1), 155-162. doi: 10.21608/adjalexu.2024.247759.1443
Haitham Hassan; Ahmad El Shimy; Tarek Sahry Abdalazim; Kenda Hisham Hanno. "EVALUATION OF TWO DIFFERENT ATTACHMENT SYSTEMS IN MANDIBULAR OVERDENTURES RETAINED WITH TWO INCLINED IMPLANTS (A RANDOMIZED CONTROLLED CLINICAL TRIAL)". Alexandria Dental Journal, 50, 1, 2025, 155-162. doi: 10.21608/adjalexu.2024.247759.1443
Hassan, H., El Shimy, A., Abdalazim, T., Hanno, K. (2025). 'EVALUATION OF TWO DIFFERENT ATTACHMENT SYSTEMS IN MANDIBULAR OVERDENTURES RETAINED WITH TWO INCLINED IMPLANTS (A RANDOMIZED CONTROLLED CLINICAL TRIAL)', Alexandria Dental Journal, 50(1), pp. 155-162. doi: 10.21608/adjalexu.2024.247759.1443
Hassan, H., El Shimy, A., Abdalazim, T., Hanno, K. EVALUATION OF TWO DIFFERENT ATTACHMENT SYSTEMS IN MANDIBULAR OVERDENTURES RETAINED WITH TWO INCLINED IMPLANTS (A RANDOMIZED CONTROLLED CLINICAL TRIAL). Alexandria Dental Journal, 2025; 50(1): 155-162. doi: 10.21608/adjalexu.2024.247759.1443
EVALUATION OF TWO DIFFERENT ATTACHMENT SYSTEMS IN MANDIBULAR OVERDENTURES RETAINED WITH TWO INCLINED IMPLANTS (A RANDOMIZED CONTROLLED CLINICAL TRIAL)
2Professor, Department of Removable Prosthodontics, Faculty of Dentistry, Alexandria University, Egypt
3Assistant professor, Department of Oral Medicine, Periodontology, Oral Diagnosis and Radiology
4Lecturer, Department of Prosthodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
Abstract
Introduction: Selection of the proper overdenture attachment system can be challenging for the prosthodontist if there is a lack of implant parallelism. Objectives: The study aimed to radiographically assess the influence of two distinct attachment systems on marginal bone loss (MBL) around a pair of 30-degree divergent implants retaining mandibular overdentures. Materials and Methods: The study involved 22 fully edentulous patients who underwent a prospective randomized controlled trial (RCT). In this trial, each patient received a pair of implants tilted at a 15° angle from the vertical axis, bilaterally placed in the canine regions using a minimally invasive flapless surgical technique. The participants were evenly divided into two groups: Group N (n = 11), which received mandibular overdentures with angled Novaloc attachments, and Group L (n=11), which received mandibular overdentures with Locator attachments. The evaluation of MBL was conducted at three time points: baseline (prosthetic loading), 3 months, and 12 months after prosthetic loading. Results: By the end of 12 months, the mean values of MBL did not exceed 1.5 mm in both groups. The mean values of MBL were greater in group N than in group L with a statistically significant difference. Conclusion: The Locator attachment may be viewed as superior to the angled Novaloc attachments when it comes to peri-implant bone loss around 15° distally inclined implants used to retain mandibular complete overdentures. Nevertheless, the bone loss with angled Novaloc attachments remains within clinically acceptable limits.
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