Comparison of Platform Switched and Platform Matched Implants on Supporting Structures of Mandibular Overdentures: A Three Year Follow-up Longitudinal Study.
Mohamed, N., Ashour, A. (2020). Comparison of Platform Switched and Platform Matched Implants on Supporting Structures of Mandibular Overdentures: A Three Year Follow-up Longitudinal Study.. EKB Journal Management System, 66(Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)), 1235-1242. doi: 10.21608/edj.2020.24076.1024
Neveen Mohamed; Asmaa Ashour. "Comparison of Platform Switched and Platform Matched Implants on Supporting Structures of Mandibular Overdentures: A Three Year Follow-up Longitudinal Study.". EKB Journal Management System, 66, Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), 2020, 1235-1242. doi: 10.21608/edj.2020.24076.1024
Mohamed, N., Ashour, A. (2020). 'Comparison of Platform Switched and Platform Matched Implants on Supporting Structures of Mandibular Overdentures: A Three Year Follow-up Longitudinal Study.', EKB Journal Management System, 66(Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)), pp. 1235-1242. doi: 10.21608/edj.2020.24076.1024
Mohamed, N., Ashour, A. Comparison of Platform Switched and Platform Matched Implants on Supporting Structures of Mandibular Overdentures: A Three Year Follow-up Longitudinal Study.. EKB Journal Management System, 2020; 66(Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)): 1235-1242. doi: 10.21608/edj.2020.24076.1024

Comparison of Platform Switched and Platform Matched Implants on Supporting Structures of Mandibular Overdentures: A Three Year Follow-up Longitudinal Study.

Egyptian Dental Journal
Article 12, Volume 66, Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), April 2020, Page 1235-1242  XML PDF (670.08 K)
Document Type: Original Article
DOI: 10.21608/edj.2020.24076.1024
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Authors
Neveen Mohamed email orcid 1; Asmaa Ashour2
1Associate Professor of Prosthodontics, Faculty of Dental Medicine for girls, Al Azhar University, Cairo, Egypt.
2Lecturer of Removable Prosthodontics, Faculty of Dental Medicine for girls, Al- Azhar University, Cairo, Egypt.
Abstract
Objectives
To compare the influence of platform switched and matched implants on supporting structures of mandibular overdenture by measuring marginal bone loss (MBL) and soft tissue changes including probing depth and implant stability.
Material and Methods
Twenty completely edentulous patients age 50- 60 years were selected for this longitudinal study. Complete dentures were performed for all patients, they were divided randomly into 2 groups; 10 patients each. The first group obtained 2 platform switched implants while the second group obtained two platform matched implants (3.6 × 11.5 mm) in the canine areas of the mandible. Radiographic measures were performed every 12 months for 3 years while clinical measures were made every 6 months for 3 years for each group. Data was examined by student's t-test and paired t-test.
Results
The mean age of patients was 54 ±3.3 years. No statistically significant difference was observed in MBL between mandibular overdentures supported by 2 platform switched and that supported by 2 platform matched implants (p≥0.05). Also, there were no statistically significant differences in pocket depth or implant mobility between two studied groups after 1, 2 and 3 years follow up (p≥0.05).
Conclusions
Platform switching appears to not influence marginal bone loss around implants or soft tissue in two implants supported mandibular overdentures.
Keywords
Dental implant; platform switching; denture; overlay
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