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Orthodontic treatment of a transposed maxillary canine and first premolar in a young patient with Class III malocclusion.

Gracco A, Siviero L, Perri A, Favero L, Stellini E - Korean J Orthod (2015)

Bottom Line: After 25 months of active orthodontic treatment, the patient had a Class I molar and canine relationship on both sides, with ideal overbite and overjet values.The final panoramic radiograph showed that good root parallelism was achieved.Two-year follow-up intraoral photography showed stable results.

View Article: PubMed Central - PubMed

Affiliation: Department of Neuroscience, University of Padova, Padova, Italy.

ABSTRACT
A 12-year-old girl was referred to our clinic for evaluation of an unaesthetic dental appearance. All permanent teeth were erupted, while the deciduous maxillary right canine was retained. Cone-beam computed tomography revealed a complete transposition of the maxillary left canine and first premolar involving both the crowns and the roots. Initial cephalometric analysis showed a skeletal Class III pattern, with a slight maxillary retrusion and a compensated proclination of the upper incisors. The patient's teeth were considered to be in the correct position; therefore, we decided to attempt treatment by correcting the transposition and using only orthodontic compensation of the skeletal Class III malocclusion. After 25 months of active orthodontic treatment, the patient had a Class I molar and canine relationship on both sides, with ideal overbite and overjet values. Her profile was improved, her lips were competent, and cephalometric evaluation showed acceptable maxillary and mandibular incisor inclinations. The final panoramic radiograph showed that good root parallelism was achieved. Two-year follow-up intraoral photography showed stable results.

No MeSH data available.


Related in: MedlinePlus

Surgical procedure. A, Intraoral photo of the surgical exposure of the left canine; B, mucosal flap closed over the canine.
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Figure 7: Surgical procedure. A, Intraoral photo of the surgical exposure of the left canine; B, mucosal flap closed over the canine.

Mentions: A full-thickness buccal flap was performed and a metal button was bonded to the left impacted canine (Figure 7A). The crown of the canine was at the same level as the first premolar crown. To facilitate the extrusion of the canine, a ligature wire was connected between the button and the copper-nickel-titanium 0.014 archwire. During extrusion, mesial movement of the impacted canine was accomplished with a ligature wire placed mesially and a coil spring placed between the lateral and first premolars on the left side. The mucosal flap was closed over the canine (Figure 7B). A continuous ligature wire was used on the upper frontal teeth in order to reduce flaring.


Orthodontic treatment of a transposed maxillary canine and first premolar in a young patient with Class III malocclusion.

Gracco A, Siviero L, Perri A, Favero L, Stellini E - Korean J Orthod (2015)

Surgical procedure. A, Intraoral photo of the surgical exposure of the left canine; B, mucosal flap closed over the canine.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4664908&req=5

Figure 7: Surgical procedure. A, Intraoral photo of the surgical exposure of the left canine; B, mucosal flap closed over the canine.
Mentions: A full-thickness buccal flap was performed and a metal button was bonded to the left impacted canine (Figure 7A). The crown of the canine was at the same level as the first premolar crown. To facilitate the extrusion of the canine, a ligature wire was connected between the button and the copper-nickel-titanium 0.014 archwire. During extrusion, mesial movement of the impacted canine was accomplished with a ligature wire placed mesially and a coil spring placed between the lateral and first premolars on the left side. The mucosal flap was closed over the canine (Figure 7B). A continuous ligature wire was used on the upper frontal teeth in order to reduce flaring.

Bottom Line: After 25 months of active orthodontic treatment, the patient had a Class I molar and canine relationship on both sides, with ideal overbite and overjet values.The final panoramic radiograph showed that good root parallelism was achieved.Two-year follow-up intraoral photography showed stable results.

View Article: PubMed Central - PubMed

Affiliation: Department of Neuroscience, University of Padova, Padova, Italy.

ABSTRACT
A 12-year-old girl was referred to our clinic for evaluation of an unaesthetic dental appearance. All permanent teeth were erupted, while the deciduous maxillary right canine was retained. Cone-beam computed tomography revealed a complete transposition of the maxillary left canine and first premolar involving both the crowns and the roots. Initial cephalometric analysis showed a skeletal Class III pattern, with a slight maxillary retrusion and a compensated proclination of the upper incisors. The patient's teeth were considered to be in the correct position; therefore, we decided to attempt treatment by correcting the transposition and using only orthodontic compensation of the skeletal Class III malocclusion. After 25 months of active orthodontic treatment, the patient had a Class I molar and canine relationship on both sides, with ideal overbite and overjet values. Her profile was improved, her lips were competent, and cephalometric evaluation showed acceptable maxillary and mandibular incisor inclinations. The final panoramic radiograph showed that good root parallelism was achieved. Two-year follow-up intraoral photography showed stable results.

No MeSH data available.


Related in: MedlinePlus