When to use extraction of the lateral incisors?
In conclusion, extraction of the upper lateral incisors can be an effective treatment choice when the upper lateral incisors are dwarfed, are nonvital, or demonstrate severe malposition. Most patients seeking orthodontic treatment have a chief complaint of functional and/or esthetic deformities due to misalignment of the maxillary anterior teeth.
Where are the maxillary incisors on the face?
The maxillary anterior teeth significantly protruded (U1 to A-Po: 12.0 mm), and the mandibular incisors were labially inclined (L1-Mp: 103°). The mandibular dental midline closely coincided with the facial midline, but the maxillary midline was observed to have shifted 2.0 mm toward the right.
Is there an overjet on the maxillary incisor?
An excessive overjet of 6.9 mm with Angle Class II molar relationships on both sides was also observed. In addition, an excessive curve of Spee of 4.0 mm was found in the mandibular dentition. Moreover, the maxillary right first molar, right lateral incisor, right medial incisor, and left lateral incisor were nonvital and discolored.
Can a canine be used to replace maxillary incisors?
In addition, there have been cases of incisor extraction followed by space closure. 4, 5 Orthodontic space closure, using the canines to replace the absent maxillary lateral incisors, is one of the common treatment options used to provide a better esthetic outcome.
Are there any maxillary maxillary incisors that are missing?
The prevalence of peg-shaped maxillary permanent lateral incisors has been reported to be 1.8% to 2.3%, while the prevalence of missing permanent mandibular lateral incisors is less frequent (0.1%). 3,4 However, if they occur together, they can pose challenges in clinical dentistry with respect to function and esthetics.
Where is the central incisor of the maxilla located?
[edit on Wikidata] The maxillary central incisor is a human tooth in the front upper jaw, or maxilla, and is usually the most visible of all teeth in the mouth. It is located mesial (closer to the midline of the face) to the maxillary lateral incisor.
What to know about peg shaped maxillary incisors?
This clinical report describes the steps for evidence-based decision-making for treatment of a patient who presented with peg-shaped maxillary lateral incisors and congenitally missing mandibular lateral incisors. Special emphasis is placed on how to perform a quick and efficient search of the literature in order to support EBD.
What is the average length of a deciduous incisor?
Deciduous dentition. The overall length of the deciduous maxillary central incisor is 16 mm on average, with the crown being 6 mm and the root being 10 mm. In comparison to the permanent maxillary central incisor, the ratio of the root length to the crown length is greater in the deciduous tooth.