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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

Post-treatment records: radiographs and cephalometric tracings (black, before treatment; red, after treatment).
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Figure 8: Post-treatment records: radiographs and cephalometric tracings (black, before treatment; red, after treatment).

Mentions: After 25 months of active orthodontic treatment, the patient had a bilateral Class I molar and canine relationship with good overbite and overjet values. The profile was improved, the lips were competent, and the cephalometric evaluation showed acceptable maxillary and mandibular incisor inclinations. The final panoramic radiograph showed that good root parallelism was achieved. The superimpositions (alignment tracings of the sella-nasion line at the sella) showed mesial movement of the upper molars, a reduction of the upper incisor angle, and a slightly increased proclination of the lower incisors (Figure 8). Gingival levels and periodontal tissue architecture were adequate, oral hygiene was good, the smile appeared natural, and the smile line was correct. A lower splint retainer from cuspid to cuspid and a Boston retainer with vestibular resin in the upper anterior zone were applied for the retention period. Incisal and canine guidances were present (Figures 8, 9, 10, Table 1).


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)

Post-treatment records: radiographs and cephalometric tracings (black, before treatment; red, after treatment).
© Copyright Policy - open-access
Related In: Results  -  Collection

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

Figure 8: Post-treatment records: radiographs and cephalometric tracings (black, before treatment; red, after treatment).
Mentions: After 25 months of active orthodontic treatment, the patient had a bilateral Class I molar and canine relationship with good overbite and overjet values. The profile was improved, the lips were competent, and the cephalometric evaluation showed acceptable maxillary and mandibular incisor inclinations. The final panoramic radiograph showed that good root parallelism was achieved. The superimpositions (alignment tracings of the sella-nasion line at the sella) showed mesial movement of the upper molars, a reduction of the upper incisor angle, and a slightly increased proclination of the lower incisors (Figure 8). Gingival levels and periodontal tissue architecture were adequate, oral hygiene was good, the smile appeared natural, and the smile line was correct. A lower splint retainer from cuspid to cuspid and a Boston retainer with vestibular resin in the upper anterior zone were applied for the retention period. Incisal and canine guidances were present (Figures 8, 9, 10, Table 1).

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