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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 exclusionNumber of excluded studies
No data on MBL5
No comparison of MBL between fixed and removable prostheses16
Inclusion of patients with diabetes, periodontal diseases, augmented bone, pregnancy, osteoporosis, heavy smokers or studies in which > 25% of the patient population were smokers10
Tooth-implant-supported restorations1
Single-tooth implant restoration1