dental crowding and spacing

Dental Crowding

Dental Crowding

Definitioncrowding is a condition where there is malalignment of teeth caused by inadequate space

Crowding:space deficiency

Dental Crowding

Dental Crowding

Dental Crowding

Classification of crowdingthere are different methods of classification of crowding1-according to the source
hereditary crowding
enviromental crowding

2-according to the time of appearance

Tertiary crowding

3-according to the severity

Aetiology of crowding

Moyer's prediction table

Use four mandibular incisor to predict the distance of lower , the maxillary canine, premolar from mesial to distal .
Low incisor 19.5 20.0 20.5 21.0 21.5 22.0
maxillary 20.6 20.9 21.2 21.3 21.8 22.0
mandibular 20.1 20.4 20.7 21.0 21.3 21.6

Treatments of crowding

Dental spacing

Dental spacing