Teeth in occlusion

The overjet and overbite should be measured and the incisor classification assessed. The British Standards Institute (BS EN21942 Part 1 (1992) Glossary of Dental terms) defines the incisor classification as follows:

Fig. 3 Assessment of crowding. The widths of all the teeth anterior to the molars are measured and subtracted from the sum of two measurements (mesial of the lower incisor to the distal of the lower canine, plus distal of lower canine to the mesial of the first molar) to give the degree of crowding

Fig. 3 Assessment of crowding. The widths of all the teeth anterior to the molars are measured and subtracted from the sum of two measurements (mesial of the lower incisor to the distal of the lower canine, plus distal of lower canine to the mesial of the first molar) to give the degree of crowding

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