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Table 1 Failure rates by characteristics of patients

From: Failure rates of mini-implants placed in the infrazygomatic region

Characteristic Total N Failure rate (%)
Age <18 years 29 20.69
≥18 years 26 23.08
Gender Male 13 38.46
Female 42 16.67
Presence of medical condition Yes 6 50
No 49 18.37
Lomas (Mondeal, Tuttligen, Germany) Yes 43 18.60
No 12 33.33
Diameter of implant 1.50 or 1.80 10 30
2.00 or 2.30 45 20
Length of implant 6 to 8 mm 13 30.77
9 mm 42 19.05
Force magnitude 150 g 12 16.67
>150 g 43 23.26
Type of movement Purely intrusive 25 16
All others 30 26.67
Oral hygiene Poor 14 35.71
Good or fair 41 17.07
Operator experience Experienced 11 18.18
Inexperienced 44 22.73
Use of pilot hole Yes 22 13.64
No 33 27.27
Side of implant Left 28 25
Right 27 18.52