2023-08-17 02:11:20
Director Kim Nan-hee’s easy access to the treatment of allstory-eruption disorder ⑯
Two, ambush canines are extracted. When an impacted canine tooth is extracted, it is when the relationship with the adjacent tooth is not good and it is difficult to induce eruption, such as a 180-degree rotation of the iso position, i.e., an inverse position, or when there is a lesion such as a cyst related to an impacted tooth such as an indentation cyst.<그림 7>.
In addition, extraction may be considered if the impacted canine is severely deformed or if it is difficult to arrange it in its normal position due to curvature of the root, and if the functional prognosis is poor after placement. However, in general, root deformity is not an indication for tooth extraction. This is because even an impacted tooth with a curved apical 1/3 can expect normal function and normal growth of the alveolar process if it is pulled into the dental arch in a timely manner by appropriate treatment mechanics.<그림 8>.
The curvature of the tooth root follows the shape of the palate or the shape of the buccal cortical plate depending on the location of the impact.
The most important factor in determining the extraction of impacted canines is the relationship with the adjacent teeth. Even if there is no current problem between the impacted canine and adjacent teeth, a comprehensive orthodontic treatment is planned, and the traction of the impacted canine is not included in the orthodontic plan. can<그림 9>.
After the ambush canine is removed, if there is a canine, it can be left behind. In some cases, if a canine tooth needs to be extracted or if a space problem remains after it has already been extracted, the space is resolved with a prosthetic restoration or orthodontic treatment.
Third, it induces the ambush canines to erupt. There are three factors that determine whether a canine can erupt: The position of the canine in the bone, the shape and position of the adjacent lateral incisor, and the size of the available space for the canine in the dental arch. If these three conditions are normal, teeth can erupt normally. If the position and angle of the canine is good and there is an eruption disorder or ambush simply due to a lack of available space, the available space, that is, the eruption path, and natural eruption of the canine can be expected with orthodontic treatment alone.<그림 10>.
In many cases, it is possible to induce eruption of the maxillary canines with space supervision or simple orthodontic treatment to solve these spatial problems, and such block orthodontic treatment is advantageous when started in the mixed dentition period.
However, if there is a canine eruption space problem, it may also be accompanied by problems with the arrangement of other teeth. Distal inclination of crowns of adjacent lateral incisors and anterior crowding are common, in which case comprehensive orthodontic treatment is unavoidable.<그림 11>.
It is difficult to induce eruption only by securing an impacted canine after root formation, that is, an impacted canine whose eruption period has passed by eruption through orthodontic treatment. Surgery-orthodontic combined treatment is inevitable for eruption induction treatment of impacted canines in adults.<그림 12>.
In addition, in pediatric patients, it is difficult to treat only with orthodontic treatment if there is a problem with the position of the canine teeth as well as simple space problems and alignment problems with adjacent teeth. Through surgical-orthodontic complex treatment, the maxillary canine must be intentionally erupted and placed in its normal position. Surgical-orthodontic combined treatment of impacted teeth can be expected to have a better prognosis in pediatric patients than in adults.
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