Comparison of Success Rate and Radiological Bone Loss in Patients with Mini-Implant versus Conventional-Sized Implant Removable Prostheses: A Meta-Analysis

Khaled B H Abubaker,Sheng Yang,Yuzhou Li

doi:10.4236/ojst.2021.112006

Abstract

Background: The objective of this meta-analysis was to assess whether mini-implants have added benefit in terms of implants success rate and average bone loss over conventional-sized implants after one year of follow-up. Methods: An electronic search of randomized clinical trials was conducted in MEDLINE (via PubMed), Cochrane Central Register of Clinical Trials (CENTRAL) and Web of Science for studies including complete or partial edentulous patients requiring two or four mini-implants or conventional/ standard-sized implants in the maxilla or mandible for implant-supported removable prostheses who completed 12 months of follow-up. Results: The search provided 194 unique articles which were screened for title and abstract. Screening generated 12 articles which went through full-text analysis using eligibility criteria, and 4 articles were included for meta-analysis. Meta-analysis of these studies indicated a non-significant difference in the success rate between the two interventions (OR = 1.69 [0.74, 3.85; p = 0.21]). Bone loss estimates resulted in a significant bone reduction (Mean Difference = -0.74 [-0.95, -0.53; p - with two conventional-sized implants, the estimates were non-significant (Mean Difference = -0.24 [-0.69, 0.20; p = 0.29]). Conclusion: The current evidence does not provide solid evidence of the benefits of one intervention over the other. More studies with follow-up times of 10 and more years are needed as current studies have described the short-term outcomes.

Highlights

In recent years, dental implants have become the predictable treatment option for treatment of missing teeth [1]
This review considered randomized clinical trials (RCTs) that compare clinical outcomes of using mini-implant and conventional dental implant regardless of whether there was an immediate or delayed loading
At follow-up, patients should go through radiological bone loss measurement on digital periapical or panoramic radiographs and evaluation of implant success rate using criteria developed during Consensus Conference of the International Congress of Oral Implantology in Pisa (ICOI) [10]

Summary

Introduction

Dental implants have become the predictable treatment option for treatment of missing teeth [1] They have gained much popularity because of their ability to preserve adjacent tooth structure and bone [2] [3] and due to scientific advances in the field of implant dentistry [4]. Though not conforming to the proposed classification of dental implant length and diameter, as proposed by [6], recent randomized clinical studies embarked to compare clinical outcomes of using mini-implants over conventional-sized implants. The actual clinical benefits of mini implants over conventional-sized implants lack adequate evidence The objective of this meta-analysis was to assess whether miniimplants have added benefit in terms of implants success rate and average bone loss over conventional-sized implants after one year of follow-up.

Methods

Results

Discussion

Conclusion