Table 2 The skeletal and dentoalveolar parameters evaluated in the systematic review
Parameter | Abbreviation and/or unit | Definition |
|---|---|---|
Maxillary base position | SNA° | The angle between 3 point landmarks S, N and A point, determining the anteroposterior position of the maxilla relative to the cranial base |
Mandibular base position | SNB° | The angle between 3 point landmarks S, N and B point, determining the anteroposterior position of the mandible relative to the cranial base |
Sagittal skeletal relation | ANB° | The angle between 3 point landmarks, A point, N and B point, determining the anteroposterior relation between maxilla and the mandible relative to the cranium |
Vertical skeletal relation | MPA = SN/Go-Me* or SN/Go-Gn° | The angle between the line S–N and the mandibular plane, measuring the mandibular base tipping relative to the cranium |
Maxillary incisors inclination | U1/PP Or U1/SN° or | The angle formed between the palatal plane or SN line and the long axis of the most protruded maxillary incisor |
U1-VP mm | The linear distance between U1 and the Vertical plane | |
Mandibular incisors inclination | IMPAº | The angle formed between the mandibular plane and the long axis of the most protruded mandibular incisor |
Overjet | mm | The horizontal distance between the palatal surface of the most protruded maxillary incisor and the labial surface of the most protruded mandibular incisor |
Overbite | mm | The vertical distance between the incisal edge of the most protruded maxillary incisor and the incisal edge of the most protruded mandibular incisor |