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Splinted mandibular protraction appliance.

Jena AK, Singh SP - Contemp Clin Dent (2015)

Bottom Line: In growing patients, forward repositioning of mandible by mandibular repositioning appliances is considered as a treatment of choice.The modified design enhanced the mandibular growth and contributed for the better skeletal correction of Class II malocclusion as compared to the conventional MPAs.This article highlights the design and fabrication of a splinted MPA for the correction of Class II malocclusion due to mandibular retrusion and also describes a patient managed by this appliance.

View Article: PubMed Central - PubMed

Affiliation: Department of Dental Surgery, All India Institute of Medical Sciences, Sijua, Dumduma, Bhubaneswar, Odisha, India.

ABSTRACT
Advancement of mandible rather than tooth movement is an ideal treatment for the correction of Class II malocclusion resulting from mandibular retrusion. In growing patients, forward repositioning of mandible by mandibular repositioning appliances is considered as a treatment of choice. Correction of mandibular retrusion by the conventional mandibular protraction appliances (MPAs) is mainly due to dento-alveolar changes and by altering the design of original MPAs, these limitations were minimized. The modified design enhanced the mandibular growth and contributed for the better skeletal correction of Class II malocclusion as compared to the conventional MPAs. This article highlights the design and fabrication of a splinted MPA for the correction of Class II malocclusion due to mandibular retrusion and also describes a patient managed by this appliance.

No MeSH data available.


Related in: MedlinePlus

The splinted mandibular protraction appliance after cementation. (a) Right lateral view; (b) Front view; (c) Left lateral view
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Figure 3: The splinted mandibular protraction appliance after cementation. (a) Right lateral view; (b) Front view; (c) Left lateral view

Mentions: The treatment plan involved expansion of the maxillary arch and anterior repositioning of the mandible. Splinted MPA was used for the correction of maxillary constriction and mandibular retrognathism. Maxillary and mandibular working impressions were made, and wax bite registration was done with one-step mandibular advancement. The sagittal and vertical displacements of the mandible were 7 mm and 4 mm respectively during wax bite registration. The splinted MPA was fabricated, and the finished appliance was checked and cemented to the maxillary and mandibular arches [Figure 3]. The Hyrax screw was opened ¼ turn twice daily for 15 days. The patient was advised not to chew hard food and to maintain proper oral hygiene. The patient was reviewed in every 4 weeks and the appliance wearing was discontinued after 7 months [Figure 4]. The Class II correction following splinted MPA therapy was retained by an anterior inclined plane and the occlusion was finished with multi-bonded appliance (Roth 0.018” prescription) [Figure 5]. The skeletal and dento-alveolar changes following treatment is described in Table 1.


Splinted mandibular protraction appliance.

Jena AK, Singh SP - Contemp Clin Dent (2015)

The splinted mandibular protraction appliance after cementation. (a) Right lateral view; (b) Front view; (c) Left lateral view
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4374311&req=5

Figure 3: The splinted mandibular protraction appliance after cementation. (a) Right lateral view; (b) Front view; (c) Left lateral view
Mentions: The treatment plan involved expansion of the maxillary arch and anterior repositioning of the mandible. Splinted MPA was used for the correction of maxillary constriction and mandibular retrognathism. Maxillary and mandibular working impressions were made, and wax bite registration was done with one-step mandibular advancement. The sagittal and vertical displacements of the mandible were 7 mm and 4 mm respectively during wax bite registration. The splinted MPA was fabricated, and the finished appliance was checked and cemented to the maxillary and mandibular arches [Figure 3]. The Hyrax screw was opened ¼ turn twice daily for 15 days. The patient was advised not to chew hard food and to maintain proper oral hygiene. The patient was reviewed in every 4 weeks and the appliance wearing was discontinued after 7 months [Figure 4]. The Class II correction following splinted MPA therapy was retained by an anterior inclined plane and the occlusion was finished with multi-bonded appliance (Roth 0.018” prescription) [Figure 5]. The skeletal and dento-alveolar changes following treatment is described in Table 1.

Bottom Line: In growing patients, forward repositioning of mandible by mandibular repositioning appliances is considered as a treatment of choice.The modified design enhanced the mandibular growth and contributed for the better skeletal correction of Class II malocclusion as compared to the conventional MPAs.This article highlights the design and fabrication of a splinted MPA for the correction of Class II malocclusion due to mandibular retrusion and also describes a patient managed by this appliance.

View Article: PubMed Central - PubMed

Affiliation: Department of Dental Surgery, All India Institute of Medical Sciences, Sijua, Dumduma, Bhubaneswar, Odisha, India.

ABSTRACT
Advancement of mandible rather than tooth movement is an ideal treatment for the correction of Class II malocclusion resulting from mandibular retrusion. In growing patients, forward repositioning of mandible by mandibular repositioning appliances is considered as a treatment of choice. Correction of mandibular retrusion by the conventional mandibular protraction appliances (MPAs) is mainly due to dento-alveolar changes and by altering the design of original MPAs, these limitations were minimized. The modified design enhanced the mandibular growth and contributed for the better skeletal correction of Class II malocclusion as compared to the conventional MPAs. This article highlights the design and fabrication of a splinted MPA for the correction of Class II malocclusion due to mandibular retrusion and also describes a patient managed by this appliance.

No MeSH data available.


Related in: MedlinePlus