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Dentoalveolar class III treatment using retromolar miniscrew anchorage.

Poletti L, Silvera AA, Ghislanzoni LT - Prog Orthod (2013)

Bottom Line: Extrusion should be prevented or minimized when treating long-faced patients with reduced overbite.In addition, there was an esthetic improvement in the profile with only a small increase of the lower anterior facial height.These results remained stable at a 12-month follow-up.

View Article: PubMed Central - PubMed

Affiliation: Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milano, Italy. dottor.acca@gmail.com.

ABSTRACT
In this article, we report the successful use of miniscrews in the distalization of the lower dentition to correct an Angle class III malocclusion with lower anterior crowding in a dolichofacial adult patient. Conventional intraoral and extraoral appliances have many disadvantages, including the need for patient cooperation, potential for anchorage loss, and vertical extrusion of upper molars and lower incisors. Extrusion should be prevented or minimized when treating long-faced patients with reduced overbite. After third molar extractions, miniscrews were placed in the retromolar area. A sliding jig was applied to distalize the lower molars, while the anterior teeth were bonded and retracted secondarily to avoid round tripping. After 18 months of treatment, molar and canine class I relationship with normal overjet and overbite were achieved. In addition, there was an esthetic improvement in the profile with only a small increase of the lower anterior facial height. These results remained stable at a 12-month follow-up.

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Related in: MedlinePlus

Posttreatment photographs.
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Fig7: Posttreatment photographs.

Mentions: Interarch elastics were avoided to prevent extrusion in an open bite patient. The treatment lasted 18 months. A lower splint was bonded in the mandibular arch, and an upper removable plate was delivered as retention for the maxillary arch (Figures 6, 7, 8).Figure 6


Dentoalveolar class III treatment using retromolar miniscrew anchorage.

Poletti L, Silvera AA, Ghislanzoni LT - Prog Orthod (2013)

Posttreatment photographs.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4384962&req=5

Fig7: Posttreatment photographs.
Mentions: Interarch elastics were avoided to prevent extrusion in an open bite patient. The treatment lasted 18 months. A lower splint was bonded in the mandibular arch, and an upper removable plate was delivered as retention for the maxillary arch (Figures 6, 7, 8).Figure 6

Bottom Line: Extrusion should be prevented or minimized when treating long-faced patients with reduced overbite.In addition, there was an esthetic improvement in the profile with only a small increase of the lower anterior facial height.These results remained stable at a 12-month follow-up.

View Article: PubMed Central - PubMed

Affiliation: Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milano, Italy. dottor.acca@gmail.com.

ABSTRACT
In this article, we report the successful use of miniscrews in the distalization of the lower dentition to correct an Angle class III malocclusion with lower anterior crowding in a dolichofacial adult patient. Conventional intraoral and extraoral appliances have many disadvantages, including the need for patient cooperation, potential for anchorage loss, and vertical extrusion of upper molars and lower incisors. Extrusion should be prevented or minimized when treating long-faced patients with reduced overbite. After third molar extractions, miniscrews were placed in the retromolar area. A sliding jig was applied to distalize the lower molars, while the anterior teeth were bonded and retracted secondarily to avoid round tripping. After 18 months of treatment, molar and canine class I relationship with normal overjet and overbite were achieved. In addition, there was an esthetic improvement in the profile with only a small increase of the lower anterior facial height. These results remained stable at a 12-month follow-up.

Show MeSH
Related in: MedlinePlus