A Correlation Study between different Implant Diameters and Cantilever Lengths on the Marginal Bone Loss of Implant Supported Maxillary Prostheses: A Randomized Controlled Trial

Document Type : Original Article

Authors

Prosthodontic Department, Faculty of Dentistry, Cairo University.

Abstract

Objectives: To report a correlation between the different implant diameter and different cantilever length regarding bone height changes in implant supported maxillary prosthesis.
Materials and methods: Sixteen patients were recruited to receive six implants in the edentulous maxilla. Patients were randomized using sealed envelopes into two groups: Group I received small diameter and Group II with standard diameter. Patients were similarly randomized into sub-groups; Groups IA, IB, IIA and IIB. In Groups IA, IIA, implants were placed with an anterior-posterior AP implant spread to the cantilevers lengths at a ratio of 1:3 while in Group IB, IIB implants were placed at a ratio of 1:2. Cone Beam Computed Tomography (CBCT) was performed at the day of prosthesis delivery, after 4, 8 and 24 month follow up to measure the marginal bone height changes. Spearman`s correlation coefficient was used to correlate between bone height and different implant diameters and cantilever lengths. The significance level was set at P ≤ 0.05.
Results: A weak positive insignificant correlation was found between the different cantilever length and the small and standard implant diameter.
Conclusion: Both the standard and small implant diameter with different cantilever length showed marginal bone height changes within the physiologic limit for implant supported maxillary prosthesis.

Keywords

Main Subjects

Advanced Dental Journal
Volume 5, Issue 1
January 2023
Pages 154-165

Files

Share

How to cite

Statistics