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Table 4 Reasons for exclusion

From: Marginal bone loss around oral implants supporting fixed versus removable prostheses: a systematic review

Reason for exclusion Number of excluded studies
Review 3
No data on MBL 5
No comparison of MBL between fixed and removable prostheses 16
Inclusion of patients with diabetes, periodontal diseases, augmented bone, pregnancy, osteoporosis, heavy smokers or studies in which > 25% of the patient population were smokers 10
Tooth-implant-supported restorations 1
Single-tooth implant restoration 1