TABLE 1: MEAN AND SD OF THE DISTANCE FROM THE ANTERIOR ATTACHMENT OF LINGUAL FRENUM TO MANDIBULAR CENTRAL INCISOR
RELATED TO THREE CAST READINGS
Fifty-six recently extracted caries-free maxillary central incisors
were selected and stored in 0.1% thymol solution at 25[degrees]C until use.
The maxillary left and right central incisors
showed grade II mobility and were tender on vertical percussion.
The most frequent tooth involved were right maxillary central incisor
with n = 26, 32.91% (p = .001, Mann-Whitney U test) followed by left maxillary central incisor
; n = 14, 17.72% (p = .045, Mann-Whitney U test).
The compressive strain was slightly larger on the lower central incisor
than on the upper incisor.
Current research demonstrated that the most fractured teeth were the upper central incisors
(62.5%) and that, although 58.7% of athletes stated that a mouthguard was a necessary type of protection from dental injuries, only 4.5% wore mouthguards.
A stable occlusion was maintained, with only minor relapse at the right central incisor
. Overbite and overjet were normal.
To simulate lingual loading during protrusive jaw movement, a 10 N force was applied to the labial surface of the two central incisors
at an angle of 90 degrees from the labial direction.
Chronic apical infection and extensive inflammatory root resorption of central incisors
. Patient 1, a 10 year old female, presented with a recurrent abscess on upper right permanent central incisor
(FDI notation 11) following trauma one year previously when both upper permanent central incisors
were avulsed and replanted within the hour.
Among the cases are combination syndrome, a fractured central incisor
, full mouth rehabilitation with implant supported prostheses, and oral manifestations of methamphetamine abuse.
The dental star appears in the lower central incisors
, first as a dark yellow or yellow-brown transverse line in the dentin on the cheek side of the infundibulum of the permanent central incisor
An arrangement of teeth in Golden Proportion would yield relative widths of 1.618 : 1.0 : 0.618 for the central incisor
, lateral incisor, and canine respectively.