|
Participants |
Intervention |
Author |
Total |
Average age |
Conditions |
Type of treatment |
Results |
p-value |
Liou, Tsai99. Liou EJ, Tsai WC. A new protocol for maxillary protraction in cleft patients: repetitive weekly protocol of alternate rapid maxillary expansions and constrictions. Cleft Palate Craniofac J. 2005 Mar;42(2):121-7. (2005) |
RME group: 16 (8F/8M) Alt-RAMEC group: 10 (6F/4M) |
9 to 12 years |
Patients with cleft lip palate in mixed dentition |
» Rapid maxillary expansion (RME) for 1 week followed by 5 months, 3 weeks of maxillary protraction. - The Alternate Rapid Maxillary Expansions and Constrictions for 9 weeks followed by 3 months, 3 weeks of maxillary protraction. |
Alt-RAMEC protocol caused a maxillary protraction in a shorter period of time, with better results, promoting a jaw displacement almost double with relation to the RME group, without significant relapse for a period of 2 years after treatment. |
p < 0.05 |
Isci et al1111. Isci D, Turk T, Elekdag-Turk S. Activation-deactivation rapid palatal expansion and reverse headgear in Class III cases. Eur J Orthod. 2010 Dec;32(6):706-15. (2010) |
RPE group: 15 (8F/7M) A/D-RPE group: 15 (8F/7M) |
RPE group: 11.94 ± 1.62 years A/D-RPE group: 11.34 ± 1.81 years |
Patients with Class III malocclusion compared; negative overjet; with erupted first-premolars; concave profile and skeletal Class III pattern due to retruded maxilla, with or without mandibular protrusion. |
» Rapid palatal expansion (RPE) for 1 week. » Activation and deactivation (A/D) RPE protocol with reverse headgear (RH). |
Alternately repeating the protocol (Alt-RAMEC) with HR had greater effectiveness with respect to jaw movement when compared to the other group, with approximately twice the movement, and no significant relapses were observed. |
p < 0.001 |
Al-Mozany et al1212. Al-Mozany S, Tarraf N, Dalci O, Gonzales C, Darendeliler MA. Treatment of Class III malocclusions using Temporary Anchorage Devices (TADs) and intermaxillary Class III elastics in the growing patient. Sidney (AU): University of Sydney; 2011. (2011) |
14 (7F/ 7M) |
11.02 ± 14.02 years |
Patients on the waiting list at the University of Sydney, who had Class III malocclusion with maxillary retrognathism, in a state of cervical maturation. |
Alt-RAMEC protocol with skeletal anchorage device (TAD) |
Using the Alt-RAMEC protocol with TAD’s demonstrated efficiency, as discarded the possibility of using external devices for maxillary protraction. |
p < 0.001 |
Kaya et al1313. Kaya D, Kocadereli I, Kan B, Tasar F. Effects of facemask treatment anchored with miniplates after alternate rapid maxillary expansions and constrictions; a pilot study. Angle Orthod. 2011 July;81(4):639-46. (2011) |
15 (9F/6M) |
11.6 ± 1.59 years |
No history of previous orthodontic/orthopedic treatment, no systemic diseases or congenital deformities, concave profile, skeletal and dental Class III malocclusion, edge-to-edge/reverse incisor relationship, and symptom-free temporomandibular joint function. |
Alt-RAMEC protocol for 8 weeks followed by maxillary protraction using facemask |
Significant forward movement of the maxilla and clockwise rotation of the mandible, with a slight counterclockwise rotation and without maxillary incisor proclination and slight uprighting of the mandibular incisors, respectively. Statistically significant increase in vertical dimension and improvement in soft tissue profile. |
p < 0.001 |
Masucci et al1414. Masucci C, Franchi L, Giuntini V, Defraia E. Short-term effects of a modified Alt-RAMEC protocol for early treatment of Class III malocclusion: a controlled study. Orthod Craniofac Res. 2014;17(4):259-69. (2011) |
Alt-RAMEC group: 31 (14F/17M) RME/FM group: 31 (15F/ 16M) Control group: 21 (12F/9M) |
Alt-RAMEC: 8.1 ± 0.9 years RME/FM: 8.5 ± 1.3 years Control: 8.0 ± 1.1 years |
European ancestry, anterior crossbite or edge-to-edge incisor relationship, accentuated mesial step relationships of the primary second molars or Class III relationships of the permanent first molars, Wits appraisal ≤ 2.0 mm, absence of CO-CR discrepancy, deciduous or early mixed phase of dentition, pre-pubertal skeletal maturation (CS1 to CS2). |
» Modified alternate rapid maxillary expansions and constrictions (Alt-RAMEC) protocol with facemask (FM) » Rapid maxillary expansion and facemask (RME/FM) » Control group without treatment |
The modified Alt-RAMEC/FM protocol allows obtaining more favorable skeletal effects in terms of maxillary advancement, leading to a greater improvement in sagittal skeletal relationships as compared to the conventional RME/FM protocol. Both groups showed similar effects as for mandibular skeletal changes and vertical skeletal relationships. |
p < 0.001 |