Table 1 Definitions of the individual parameters surveyed. Each column is to be read separately from top to bottom

Author

Affected arch (upper and/or lower arch)

Occlusal offset:

Extent of infraposition

Absolute measurement in millimeters or relative measurement

Distance between the occlusal plane (definition according to the author) / adjacent teeth / mesial ridge of the first permanent molar and the infraoccluded deciduous tooth

Infraposition of deciduous teeth classified as mild, moderate and severe according to the author

Clinical examination:

Assessment of infraposition by direct inspection

Year

Alveolar ridge:

Contour of the alveolar crest

Cast analysis:

Measurement infraposition on the plaster model

Alveolar process:

Mandibular height

Radiographic examination:

Assessment of infraocclusion by analyzing panoramic radiographs, intraoral radiographs, bitewing views and/or lateral cephalograms

Skeletal growth pattern:

Horizontal, neutral or vertical mandibular growth (according to cephalometric analysis)