However it is quite common for such teeth to erupt abnormally into an ectopic position lingually or labially
, or remain partially or completely unerupted depending upon the severity of the condition.
The accessory cusplets can be occasionally placed outside the lateral cusps and labially
from the main cusps.
In the present study, 70.23% of canines were palatally impacted, with 13.74% impacted labially
. This finding is comparable to previous reports evaluating the positional distribution of impacted maxillary canines [19, 26].
We have so far adopted this bone augmentation maneuver in our staged surgery for improving retrognathia with labially
Passively move anterior teeth labially
by removal of lip forces.
This tooth does not possess some characteristics that have been attributed to Palaeorhincodon, including lateral cusplets, a labially
expanded nutritive groove, and enameloid covering the dorso-lingual surface of the root (8, 15).
There is one semi-irregularly arranged row of teeth located medially and four pairs of irregular rows numbered labially
from the median row.
Impacted maxillary canine is considered 2nd most impaction after third molars.9,10 MIC is rare clinical situation in orthodontics and is reported to be in the range of less than twice to 20 times less than maxillary canine impaction.11-13 The etiology of MIC include both genetic and environment factors.12 MIC can labially
or lingually displaced and some times transmigrated.
The parastyle, mesostyle and metastyles are present labially
. The mesostyle is more developed than the other two styles.
The loss of labial alveolar bone thickness (LABT) is a common complication with incisor moved labially
.  Nevertheless, it has been assumed that light orthodontic forces enhance better cellular activity than heavy forces in the surrounding tissues, which then not only improves the resorption process but also boosts bone apposition.
(1) About one third of impacted maxillary canines are positioned labially
within the alveolus and two third located palatally.
The more common tricuspid teeth possess two main lateral cusps with a small central cusp displaced more labially
than the lateral ones.