Immediate versus Delayed Loading for Immediately Inserted Implants Retaining Mandibular Overdenture

Document Type : Original Article

Authors

1 Professor of oral and maxillofacial Prosthodontics,Faculty of Dentistry, Ain Shams University

2 Lecturer of oral and maxillofacial Prosthodontics, Faculty of Dentistry, Ain Shams University

3 Bachelor’s degree of dental surgery (B.D.S), Faculty of Dentistry, Alexanderia University. MSc Student of Oral and Maxillofacial Prosthodontics, Faculty of Dentistry, Ain Shams University.

Abstract

Objectives: The aim of this study was to radiographically compare bone height change around implants immediately inserted and loaded with two different loading protocols (immediately loaded and delayed loaded) in implants retained mandibular overdenture .
Materials and methods: Fourteen completely edentulous male patients with remaining mandibular two canines were randomly assigned into two equal groups: Group A: Seven patients had rehabilitated by immediately placed implant retained mandibular overdenture with immediate loading of the implants opposed by conventional maxillary complete dentures. Group B: Seven patients had been rehabilitated by immediately placed implant retained mandibular overdenture with delayed loading of the implants (after 3 months) opposed by conventional maxillary complete dentures. Marginal bone loss was evaluated at time of implant loading (baseline), 3 months, 6 months and 12 months after loading.
Results: The results of this study had revealed that the marginal bone height gradually decreased throughout the study period in the two studied groups. On comparing marginal bone loss at both groups after one year follow-up group (A) had a significantly higher value (1.27±0.21), (1.27±0.11) (at mesial and distal surfaces respectively) than group (B) (1.03±0.09) (0.98±0.14) (p < 0.001) (at mesial and distal surfaces respectively).
Conclusion: Within the limitation of this study, it could be concluded that delayed loading induces less marginal bone loss than immediate loading in immediately loaded mandibular implant overdentures.

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Egyptian Dental Journal
Volume 69, Issue 2 - Serial Number 4
Fixed Prosthodontics, Removable Prosthodontics and Dental Materials
April 2023
Pages 1265-1274

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