971H
Fig. 14.27 (a) Congenital absence of 2|2, where crowding tendency indicates space
closure. (b) After alignment, with 31|13 in contact.
972H
Fig. 14.28 (a) Severe hypodontia. (b) Note tilted teeth and unfavourable space
distribution. (c) Fixed appliances to upright the teeth and redistribute space. (d) Result
of orthodontic treatment. (e) Initial retention with partial dentures incorporating spurs
to prevent any orthodontic relapse. (f) Definitive fixed restorations.
14.6.3 Anomalies of tooth size
Anomalies of tooth size are discussed in 973HChapter 13. Any tooth may be affected, but
the upper lateral incisor is most commonly involved.
Megadontia
If the upper and lower teeth do not match for size it is impossible for them to be both