EVALUATION OF TWO DIFFERENT ATTACHMENT SYSTEMS IN MANDIBULAR OVERDENTURES RETAINED WITH TWO INCLINED IMPLANTS (A RANDOMIZED CONTROLLED CLINICAL TRIAL) | ||
Alexandria Dental Journal | ||
Article 31, Volume 50, Issue 1, April 2025, Pages 155-162 PDF (397.55 K) | ||
Document Type: Original Article | ||
DOI: 10.21608/adjalexu.2024.247759.1443 | ||
Authors | ||
Haitham Hassan* 1; Ahmad El Shimy2; Tarek Sahry Abdalazim3; Kenda Hisham Hanno4 | ||
1Assistant lecturer, Prosthodontics Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt | ||
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. | ||
Keywords | ||
Overdenture; Inclined implants; Novaloc; Locator; Attachment | ||
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