+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Long-term stability of rapid maxillary expansion combined with chincup protraction followed by fixed appliances



Long-term stability of rapid maxillary expansion combined with chincup protraction followed by fixed appliances



Angle Orthodontist 85(2): 270-277



To analyze the long-term stability of rapid maxillary expansion (RME) and protraction from chincup therapy in girls with Class III malocclusion. Twenty-two girls (mean age  =  9.1 ± 0.6 years) with Class III malocclusion were treated with combined RME and protraction from a chincup, followed by fixed appliances. Lateral cephalograms were evaluated before treatment, at the end of a two-phase treatment protocol (mean age  =  15.1 ± 1.1 years), and 10.9 ± 0.5 years after the end of treatment (mean age  =  27.5 ± 0.5 years). The control group consisted of 22 matched girls with skeletal Class I malocclusion. After treatment, the Class III group showed significant improvement of the Class III malocclusion, mainly due to changes in the mandible (ie, SNB angle decreased 1.8 ± 1.6°) and significant improvement of the sagittal maxillomandibular relationship (Wits appraisal increased 2.6 ± 2.1 mm; ANB angle increased 1.0 ± 0.3 mm). These changes remained stable for an average of 10 years after the end of therapy. No tendency toward relapse was detected, and the mandibular position showed favorable outcomes. RME and protraction from chincup therapy led to successful long-term outcomes in 18 of 22 patients (81.8%). This treatment approach can be considered an efficient therapy in growing girls with mild skeletal Class III malocclusion caused by maxillary retrusion and mandibular protrusion.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 054172162

Download citation: RISBibTeXText

PMID: 24892796

DOI: 10.2319/012514-68.1


Related references

Long-term stability of combined rapid palatal expansion-lip bumper therapy followed by full fixed appliances. American Journal of Orthodontics and Dentofacial Orthopedics 128(3): 310-325, 2005

Long-term effects of rapid maxillary expansion followed by fixed appliances. Angle Orthodontist 80(1): 5-9, 2010

Rapid maxillary expansion followed by fixed appliances: a long-term evaluation of changes in arch dimensions. Angle Orthodontist 73(4): 344-353, 2003

Long-term effects of Class III treatment with rapid maxillary expansion and facemask therapy followed by fixed appliances. American Journal of Orthodontics and Dentofacial Orthopedics 123(3): 306-320, 2003

Long-term stability of Class III treatment: rapid palatal expansion and protraction facemask vs LeFort I maxillary advancement osteotomy. American Journal of Orthodontics and Dentofacial Orthopedics 131(1): 7.E9-7.19, 2007

Combined rapid maxillary expansion and protraction facemask in the treatment of Class III malocclusions in growing children: a prospective long-term study. Seminars in Orthodontics 3(4): 265-274, 1998

Postpubertal assessment of treatment timing for maxillary expansion and protraction therapy followed by fixed appliances. American Journal of Orthodontics and Dentofacial Orthopedics 126(5): 555-568, 2004

A Retrospective Evaluation of Conventional Rapid Maxillary Expansion versus Alternate Rapid Maxillary Expansion and Constriction Protocol Combined with Protraction Headgear in the Management of Developing Skeletal Class III Malocclusion. Journal of International Society of Preventive & Community Dentistry 8(4): 320-326, 2018

Surgically assisted rapid maxillary expansion combined with maxillary protraction in an adult: a patient report. World Journal of Orthodontics 10(4): 334-344, 2013

Treatment effects of occipitomental anchorage appliance of maxillary protraction combined with chincup traction in children with Class III malocclusion. Journal of the Formosan Medical Association 106(5): 380-391, 2007

Dental inclination with self-ligating and conventional fixed appliances, with and without rapid maxillary expansion. Orthodontics & Craniofacial Research 2019, 2019

Predictors of long-term stability of maxillary dental arch dimensions in patients treated with a transpalatal arch followed by fixed appliances. Progress in Orthodontics 16(): 24-24, 2015

Surgically assisted rapid maxillary expansion: long-term stability. European Journal of Orthodontics 31(2): 142-149, 2008

Effect of maxillary protraction with alternating rapid palatal expansion and constriction vs expansion alone in maxillary retrusive patients: a single-center, randomized controlled trial. American Journal of Orthodontics and Dentofacial Orthopedics 148(4): 641-651, 2016

Three-dimensional analysis of maxillary changes associated with facemask and rapid maxillary expansion compared with bone anchored maxillary protraction. American Journal of Orthodontics and Dentofacial Orthopedics 144(5): 705-714, 2014