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ISSN: 2161-1122
Dentistry
Mostafa et al., Dentistry 2018, 8:2
DOI: 10.4172/2161-1122.1000472
Open Access Research Article
Voume 8 • Issue 2 • 1000472
Dentistry, an open access journal
ISSN: 2161-1122
*Corresponding author: Amr Ragab El-Beialy, Department of Orthodontics
and Dentofacial Orthopaedics, Faculty of Oral and Dental Medicine, Cairo
University, 11 El-Saraya Street, Manial, Cairo, Egypt, Tel: (+2)01006607277;
E-mail: amr.elbeialy@dentistry.cu.edu.eg
Received December 05, 2017; Accepted February 26, 2018; Published March
05, 2018
Citation: Mostafa YA, El-Beialy AR, Tarraf NE, Nada RM, Heidar AM, et al. (2018)
The Amalgamated Technique. Dentistry 8: 472. doi:10.4172/2161-1122.1000472
Copyright: © 2018 Mostafa YA, et al. This is an open-access article distributed
under the terms of the Creative Commons Attribution License, which permits
unrestricted use, distribution, and reproduction in any medium, provided the
original author and source are credited.
The Amalgamated Technique
Yehya Ahmed Mostafa
1
, Amr Ragab El-Beialy
1*
, Nour ElDin Tarraf
2
, Rania M Nada
1
, Ahmed Mostafa Heidar
1
and Amr Zahran
3
1
Department of Orthodontics and Dentofacial Orthopedics, Cairo University, Egypt
2
Department of Orthodontics, Sydney University, Australia
3
Department of Periodontology, Cairo University, Egypt
socket according to the method described by Liou and Huang1. Te
distraction devices were cemented and activated several turns until
some resistance was felt.
Te transpalatal arch was placed and a three-piece intrusion arch
fabricated for simultaneous intrusion and retraction. A nickel-titanium
coil spring or elastic chain was attached between the distal extension of
the anterior segment and the mini-screw to initiate anterior retraction
(Figure 3)[ 6-10].
Te patients were instructed to activate the distraction device four
quarter turns per day and were followed up every three days. When the
canines were sufciently retracted (distracted) the distraction devices
Keywords: Orthodontics; Shortening treatment time; Amalgamated
technique; Periodontal ligament distraction; Miniscrews; Corticotomy-
facilitated orthodontics
Te Technique
Te candidates for the technique were examined clinically and
those who met the inclusion criteria were informed of the procedure,
potential benefts, risks, and complications, and a signed consent from
the patient or patient’s parent was obtained.
Inclusion criteria
• Class II div 1 malocclusion
• Class I bimaxillary protrusion
• Class II canine relation
• Maxillary canines centered within the alveolar bone
For the sake of discussion, the technique can be divided into three
stages; canine retraction by periodontal ligament distraction, anterior
segment retraction and intrusion by corticotomy and mini-screw
anchorage, then the fnal detailing of occlusion. In actual practice, the
three stages are superimposed.
For the frst stage, bands were ftted on the canines and frst molars
and alginate impressions made for the fabrication of the distraction
devices. Te latter were soldered to the canine and molar bands making
sure that the line of action of the distraction device is parallel to the
dental arch from the occlusal and facial views. A 36 mil transpalatal
arch was adjusted to passive ft into palatal sheaths on the frst molar
bands. Te distraction devices were tried in and brackets (American
Orthodontics Master Series 22 slot) placed on the incisors. Te second
molars were banded. Leveling and aligning to 17 × 25 stainless steel
archwires was carried out. Te patients were then scheduled for
extraction [1-5].
On the day of extraction, the mini-screws were placed into the
alveolar bone mesial to the frst molar (Figure 1). Labial and lingual
muco-periosteal faps were refected from canine to canine, and root-
circumscribing grooves were scored in the labial and lingual alveolar
bone using a #2 round bur under copious irrigation. Whenever possible,
corticotomy perforations were also made (Figure 2). A resorbable
grafing material was mixed with clindamycin and sterile saline into
a wet-sand like consistency and placed onto the labial and lingual
cortical plates. Te faps were re-positioned and sutured. Ten, the
frst premolars were extracted and grooves made inside the extraction
Abstract
In the last decade of the preceding century, orthodontic practice witnessed the reporting of periodontal ligament
distraction for rapid canine retraction1, the use of mini screws for anchorage 2-9, and the resurrection and refnement
of corticotomy –facilitated orthodontics 10-15. These methods added aspects of strength to routine clinical practice.
It has been hypothesized that, by “amalgamating” conventional fxed orthodontic treatment with the aforementioned
techniques, it would be possible to produce a “layered” treatment regimen that maximizes the patients’ beneft. The
advantages of the new techniques should theoretically cancel out the drawbacks of routine fxed treatment (long duration,
enamel lesions, root resorption, anchorage problems). This article describes the evolution and clinical application of a
new technique, The Amalgamated Technique
Figure 1: Intra-oral photograph showing mini-screw placed mesial to frst
molar.