Top mark on the mesial edge of mandibular central
incisor of the forth quadrant and the bottom mark on the anterior attachment of the lingual frenum.
On the other hand, a study examined 230 male subjects and found little variation between tooth diameter of subjects with and without crowding.8 Determining the causal factors that contribute to the development of lower
incisor crowding in the mixed dentition is essential.
The initial displacement was the largest in the incisal edge of lateral
incisors compared with the canine central
incisors.
The procedure followed for estimating age from
incisor Selection of tooth for grinding: the permanent first
incisor tooth from mandible was selected mainly because of the ease of obtaining it from the mandible and of having only one root in comparison to more than one in premolars and molars.
Reviewing Table 1 revealed that there was a significantly high difference between the genders for most of the measurements except the width of maxillary laterals and mandibular left central
incisor. This difference is in the agreement with previous findings indicating significantly wider teeth in males (18, 19).
The mandibular symphysis proportions, ratio of i3 to i1, length of premolar row, hypoconulid with two anterior lobes, thick
incisor and canine processes assess the studied specimen to Hex.
Methods: The study group comprised of 26 extruded immature maxillary
incisors in 25 trauma patients.
[11] As with the Holdaway VTO, the upper
incisor is positioned after the soft tissue has been constructed.
U1 to SN plane angle: It is the inferior inside angle formed between the long axis of the upper
incisor and Sella-nasion plane.
In the present case, availability of tooth fragment with satisfactory surface area and size indicated fragment reattachment technique for maxillary left lateral
incisor.
Conclusion: The study concluded that the most frequent cause was fall and right central
incisor and Elis's II classification were the most common amongst traumatic dental injuries.