Dentofacial Effects of Modified Alt-RAMEC Protocol Combined with the Facial Mask for Treatment of Preadolescent Caucasian Class III Patients
Alt-RAMEC, Facial mask, Maxillary expansion, Maxillary growth, Third class
Citation Information :
Rota E. Dentofacial Effects of Modified Alt-RAMEC Protocol Combined with the Facial Mask for Treatment of Preadolescent Caucasian Class III Patients. Int J Clin Pediatr Dent 2019; 12 (3):222-228.
Introduction: In this study we analyzed dentoskeletal effects of orthopedic therapy with rapid palatal expander (RME), used according to modified Alt-RAMEC protocol, followed by facial mask in preadolescent patients with class III malocclusion.
Materials and methods: The sample consisted of 10 patients treated consecutively with the alternate rapid maxillary expansions and constrictions (Alt-RAMEC) protocol and facial mask before the pubertal growth spur the patients were re-evaluated after about one year of treatment. We compared the cephalometric analyses at T0 (before the treatment) and T1 (just after the end of the treatment—about 1 year), evaluating 18 parameters. The normality of each distribution was assessed with D'Agostino-Pearson normality test and significative differences between T0 and T1 were assessed with paired t test (p < 0.05).
Results: Sagittal measurements of the maxilla (SNpSNa distance) showed significant improvements (p < 0.0001) with protraction effect at point A. Significant improvements were recorded also at Wits appraisal and overjet. Measures of the mandibular growth (Co-Gn) showed increased values at T1, as well as vertical dimension (SNpSNa-GoGn). No significant variations were recorded at the dental parameters.
Conclusion: This protocol induces important skeletal effects, like advancement of the maxilla, also in preadolescent patients, while dental changes are minimal. Alt-RAMEC protocol seem to modulate maxillary development in patients near the pubertal growth spurt.
Class III – malocclusion: genetics or envoronment? A twins study. Indian J Soc Pedod Prev Dent 2005 Mar;23(1):27–30. DOI: 10.4103/0970-4388.16023.
Orthopedic treatment outcomes in class III malocclusion. Angle Orthod 2008;78:561–573. DOI: 10.2319/030207-108.1.
Long-term effect of the chincap on hard and soft tissues. Eur J Orthod 1999;21:291–298. DOI: 10.1093/ejo/21.3.291.
Comparison of double-plate appliance and facemask therapy in treating class III malocclusions. Am J Orthod Dentofacial Orthop 2004;126:672–679. DOI: 10.1016/j.ajodo.2003.09.035.
The effects of maxillary protraction therapy with or without rapid palatal expansion: a prospective, randomized clinical trial. Am J Orthod Dentofacial Orthop 2005;128:299–309. DOI: 10.1016/j.ajodo.2005.04.030.
Clinical evaluation of bond failures and survival of mandibular canine-to-canine bonded retainers during a 12-year time span. Int J Clin Pediatr Dent 2017 Oct–Dec;10(4):330–334. DOI: 10.5005/jp-journals-10005-1460.
The association between the psychological status and the severity of facial deformity in orthognathic patients.
Use of miniscrew implants in orthodontic distal movement [Utilizzo delle miniviti nelle meccaniche ortodontiche di distalizzazione]. Dental Cadmos 2010;78(8):97–105.
Intrusive mechanics in orthodontics by the use of TADs [Utilizzo delle miniviti nelle meccaniche ortodontiche di intrusione]. Dental Cadmos 2010;78(8):106–114.
Palatal expansion: just the beginning of dentofacial orthopedics. Am J Orthod 1970 Mar;57(3):219–255. DOI: 10.1016/0002-9416(70)90241-1.
An orthopedic approach to the treatment of class III malocclusion in young patients. J Clin Orthod 1987 Sep;21(9):598–608.
Orthopedic correction of class III malocclusion with palatal expansion and custom protraction headgear. J Clin Orthod 1988 May;22(5):314–325.
Long-term effects of class III treatment with rapid maxillary expansion and facemask therapy followed by fixed appliances. Am J Orthod Dentofacial Orthop 2003;123:306–320. DOI: 10.1067/mod.2003.44.
Treatment and posttreatment craniofacial changes after rapid maxillary expansion and facemask therapy. Am J Orthod Dentofacial Orthop 2000;118:404–413. DOI: 10.1067/mod.2000.109840.
Effective maxillary orthopedic protraction for growing class III patients: a clinical application simulates distraction osteogenesis. Prog Orthod 2005;6(2):154–171.
Opening of circumaxillary sutures by alternate rapid maxillary expansions and constrictions. Angle Orthod 2009 Mar;79(2):230–234. DOI: 10.2319/031208-141.1.
The cervical vertebral maturation (CVM) method for the assessment of optimal treatment timing in dentofacial orthopedics. Semin Orthod 2005;11:119–129. DOI: 10.1053/j.sodo.2005.04.005.