Orthodontists in Attica

Kids & Family Dental - Syrkou Anastasia is a modern multi-specialty dental clinic in Piraeus, where all dental specialties are practiced by experienced and specialized professionals. The scientific director of the clinic is Kids Kai Family Dental - Syrkou Anastasia, a Dental Surgeon - Pediatric Dentist - Myofunctional Orthodontist with training in Myofunctional Orthodontics and Pediatric Dentistry in New York, Kiev, and Bucharest. She possesses extensive experience and expertise. At Kids & Family Dental, high-quality services are provided, and appropriate dental protocols are applied using modern techniques and the most advanced equipment in all areas of dental practice. Services are offered for the whole family, primarily for children, including General and Preventive Dentistry, Pediatric Dentistry, Orthodontics, Myofunctional Orthodontics, Oral and Maxillofacial Surgery, Aesthetic and Prosthetic Dentistry, Periodontology and Endodontics, Implants, Whitening, Hyaluronic Acid, and Botulinum Toxin.

Gratsia Sofia DDS, MSc is a Specialist Orthodontist (officially recognized specialty by the Central Health Council of the Ministry of Health) and maintains a private practice in Cholargos, also collaborating with the Happy Tooth Clinic in Voula. She was admitted to the Faculty of Dentistry at the National and Kapodistrian University of Athens, ranked 1st, receiving an honorary award from the University from where she graduated in 2016.

She commenced her specialization in Orthodontics at the Orthodontics Department of the National and Kapodistrian University of Athens, from which she obtained her Postgraduate Diploma, and was awarded the title of Specialist Orthodontist following examinations by the Central Health Council (K.E.S.Y.) of the Ministry of Health. As part of her specialization program, she completed a thesis entitled “Cervical headgear effectiveness in distalizing molars in relation to patients’ compliance,” which was published in the European Journal of Orthodontics.

In addition, she has presented her research at national and international orthodontic conferences and journals. The orthodontist has also participated in other postgraduate training programs in "Craniofacial Radiology with an emphasis on Digital Techniques and Dental Computed Tomography", obtaining the corresponding certification for the use of modern imaging techniques in the craniofacial area.

She is a member of the Hellenic and European Orthodontic Societies.

Aggelakis Dimosthenis is an Orthodontist and operates private Orthodontic Clinics in Melissia and Glyfada. He holds a degree from Aristotle University of Thessaloniki and a doctorate from Humboldt University of Berlin, with further training in the Invisalign method (Orthodontics for adolescents and adults using clear aligners). At his private clinics, he provides high-level services for the diagnosis and treatment of all orthodontic problems in adults and children. More specifically, he offers pediatric orthodontics with removable appliances and braces without tooth extractions, orthodontics for adolescents and adults with ceramic and clear braces, and treatment with clear Invisalign aligners within 8 - 16 months. The doctor has been certified in Germany in this advanced method since 2001 and was among the first orthodontists to implement it in Greece. Most patients treated with the Invisalign method in Greece have been treated at his clinics. Finally, he provides services for the management of snoring and obstructive sleep apnea. His goal is always to achieve the optimal therapeutic and aesthetic outcome.

Η Δρ Κατερίνα Δούμα - Μιχελάκη DDS, Dipl. Ortho, PhD, ΑΒΟ είναι ειδική Ορθοδοντικός με πολυετή εμπειρία στην Ορθοδοντική στην Ελλάδα και το εξωτερικό, και επικεφαλής του Οδοντιατρικού Τμήματος της Κλινικής Dermadental Care, μαζί με την κόρη της Δρ Ίρις Μιχελάκη DDS, Dipl Ortho, MSD, ΑΒΟ.

Είναι απόφοιτος της Οδοντιατρικής Σχολής του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών απ’ όπου αποφοίτησε με συνεχείς υποτροφίες στους πρώτους του έτους της και έγινε άμεσα δεκτή για εξειδίκευση με υποτροφία στις ΗΠΑ. Έλαβε πλήρη ειδικότητα, Specialty in Orthodontics and Dentofacial Orthopedics με επιπλέον πιστοποιήσεις σε όλες τις κλινικές τεχνικές από το University of Louisviile, με ταυτόχρονη συνεργασία του στρατιωτικού Τμήματος Fort Knox United States Army Dental Activity Unit. Είναι Αριστούχος Διδάκτωρ του Πανεπιστημίου Αθηνών με κλινικές μελέτες σε παιδιά με προγναθισμό της κάτω γνάθου.Παράλληλα διετέλεσε επί σειρά ετών επιστημονικός συνεργάτης στο Τμήμα Ορθοδοντικής του Πανεπιστημίου Αθηνών. Έχει διατελέσει επίκουρη κλινική καθηγήτρια στο Dubai, UAE, επιβλέποντας μεταπτυχιακούς φοιτητές ορθοδοντικής.

Το 2019 μετά από ιδιαίτερα απαιτητικές εξετάσεις στις ΗΠΑ έλαβε τον διεθνώς τίτλο αναγνωρισμένο τίτλο Diplomate of the American Board of Orthodontists (ABO).

Τόσο η Κατερίνα Δούμα-Μιχελάκη, όσο και η Ίρις Μιχελάκη, απόφοιτος του Παγκοσμίου φήμης Ορθοδοντικού Προγράμματος Ορθοδοντικής University of Washington in Seattle, είναι πλήρως πιστοποιημένα μέλη του American Board of Orthodontics, fully certified by the American Board of Orthodontics.

Η Κατερίνα Δούμα συμμετέχει διαρκώς σε ελληνικά και διεθνή επιστημονικά συνέδρια ως ομιλήτρια και είναι ενεργό μέλος διεθνών επιστημονικών οργανισμών ορθοδοντικής.

Είναι από τους πρωτοπόρους σε όλες τις νέες ψηφιακές τεχνολογίες, όπως οι θεραπείες με διαφανείς νάρθηκες Invisalign έχοντας θεραπεύσει έναν πολύ μεγάλο αριθμό περιστατικών ως Invisalign Premium Elite Provider. Έχει διατελέσει μέλος πολλών Επιστημονικών Συμβουλίων και είναι τώρα Αντιπρόεδρος της Ελληνικής Εταιρείας Ορθοδοντικών Ναρθήκων, Greek Orthodontic Aligner Society.

Στο ιατρείο Greatsmiles by Dermadental Care παρέχονται σύγχρονες ορθοδοντικές θεραπείες για παιδιά, εφήβους και ενήλικες, όπως ακίνητοι ορθοδοντικοί μηχανισμοί, διαφανείς νάρθηκες (Invisalign), γλωσσική ορθοδοντική και άλλες σύγχρονες τεχνικές, με στόχο τη βελτίωση της στοματικής υγείας και την επίτευξη ενός αρμονικού και αισθητικού χαμόγελου. Πάντα με εξατομικευμένο σχεδιασμό θεραπείας και αξιοποίηση όλων των σύγχρονων ψηφιακών τεχνολογιών, με έμφαση στα άριστα αποτελέσματα και την ανθρώπινη προσέγγιση.

Orthodontiko Paidodontiko Iatreio Kourakou Maria - Tasios Thomas - Sunshine Smiles is located in Piraeus. The scientific directors of the clinic are Tasios Thomas and Kourakou Maria.

Tasios Thomas was admitted to the School of Dentistry at Aristotle University of Thessaloniki in 2005 as a scholarship recipient from IKY with the highest entrance score. During his studies, he was awarded a merit-based scholarship due to his academic performance. He graduated in 2010 and in 2011 was immediately accepted into the orthodontic department of Marmara University in Istanbul. Upon completion of the four-year program, he earned the title of Master of Science and subsequently, after examinations, obtained the orthodontic specialty certification from KESY of the Hellenic Ministry of Health. Since 2015, he has been practicing orthodontics in the Netherlands and since 2018 has been the director of the specialized Orthodontic Clinic Top Ortho in Hengelo, Netherlands, where he is responsible for hundreds of new smiles each year. He performs treatments spanning the full spectrum of orthodontics (surgical cases, tooth autotransplantations, etc.) using both traditional methods and modern techniques such as clear aligners. From 2017 to 2019, he attended the English-language postgraduate program (MSc) Medical Resource Methodology at the Faculty of Medicine, Aristotle University of Thessaloniki. His postgraduate thesis, conducted in collaboration with the dental schools of Thessaloniki and Zurich, received the award for best publication from the Orthodontic Society of Northern Greece. He is a member of international and national scientific societies such as the American Association of Orthodontists (AAO), the European Orthodontic Society (EOS), the World Federation of Orthodontists (WFO), and the Hellenic Society of Orthodontics and Craniofacial Research and Study.

Additionally, our facility provides pediatric dentistry services through Dr. Sofia Panagiotaki and Dr. Ioannis Brokos.

Vasilis Kalamatas is an Orthodontist who operates private dental clinics in Ano Patisia and Elliniko. He graduated from the Dental School of the National and Kapodistrian University of Athens. Subsequently, he trained in Orthodontics through an intensive short course at the Royal Dental College and in Aarhus, Denmark, and later obtained his orthodontic specialization after a three-year postgraduate program at the University of Tel Aviv, Israel. Additionally, he served for years as the head of the Orthodontic Applications Laboratory at the Dental Technicians' TEI of Athens and has attended seminars on the latest orthodontic techniques primarily abroad, as well as in Greece. Finally, he is a member of the World Federation of Orthodontists, the Hellenic Orthodontic Society, the Society of Orthodontic Appliances, and the Hellenic Stomatological Society. Notably, he has extensive experience in invisible orthodontics.

Papageorgiou Ioannis is a specialist orthodontist and holds a PhD in Orthodontics from Aristotle University of Thessaloniki. He maintains two orthodontic clinics, in Peristeri and Zografou. He graduated from the Dental School of the University of Athens in 1988, attended postgraduate orthodontic courses in France in 1991 and 1992. He completed postgraduate studies at Aristotle University of Thessaloniki from 1993 to 1997, where he obtained a Master's Degree in Orthodontics and shortly afterward, following examinations by the Ministry of Health, the title of Specialist Orthodontist. In 2007, he was awarded a PhD from Aristotle University of Thessaloniki with the highest distinction. He participated in the Organizing Committee of national and international symposia of the Orthodontic Society of Greece. Finally, he was a member of the Editorial Board and a reviewer for the journal Greek Orthodontic Review. 

Emmanouil Perrakis is a Specialist Orthodontist and operates a private clinic in Piraeus. He studied Dentistry from 1995 to 2000. He specialized in Orthodontics and has held the title of Specialist Orthodontist since 2007. He underwent further training in the pioneering orthodontic treatment method using "invisible clear aligners" for adolescents and adults. He has completed hundreds of treatments to date, including "skeletal Class II and III malocclusions, open and deep bites, crossbites, and upper and lower dental crowding." He is a member of the Preventive Team of Piraeus and annually visits dozens of schools, providing his services voluntarily. Finally, he is a founding member of the Scientific Society of Sports Dentistry, which is active in the prevention of dental trauma during all types of sports activities.

Stamou Eui is an Orthodontist with a private practice in Acharnes. She graduated from the Dental School of the National and Kapodistrian University of Athens and specialized at Boston University in the USA and at Tel Aviv University in Israel. She has worked at the 'Accessible Orthodontics' clinic in Oxford, UK, and has exclusively practiced Orthodontics since 2004. She has specialized in Lingual Orthodontics and the technique using clear aligners, providing alternative solutions for adults through these innovative methods.

Specialist Orthodontist Papagiannis Aleksandros professionally practices in Lamia, Fthiotida, and in Palaio Faliro, Attica. He obtained his degree in Dental Surgery from the Dental School of the National and Kapodistrian University of Athens (NKUA) in 2013 and continued his studies in the postgraduate Orthodontics program of the same university, graduating in 2019. He is a Scientific Collaborator in the Orthodontics Department and a PhD candidate at the Dental School of NKUA. He has participated in numerous scientific presentations and conferences in Greece and abroad. Additionally, he has published scientific articles in international journals and is an active member of both Greek and international scientific associations. Therapeutically, particular emphasis is placed on the prevention of orthodontic anomalies and facial aesthetics using the most modern scientific approaches. Aesthetic treatments using invisible orthodontic appliances and aligners result in discreet yet effective orthodontic therapy that meets the expectations of both young and adult patients.

Kontos Konstantinos MSc is a Specialist Orthodontist with a private practice in Kaisariani (Hilton area) since 2003. He graduated from the School of Dentistry at Aristotle University of Thessaloniki and the Hellenic Military Academy. He obtained his orthodontic specialty title and MSc in Sweden after completing the 3-year specialty program at the University of Gothenburg. He has also received further training in Dental-Medical Sleep Medicine at Tufts University in Boston. Dr. Kontos has served as director and senior consultant of the orthodontic department at the Naval Hospital of Athens, as well as head of the orthodontic department at the Tannhelsesenteret Lørenskog clinic and clinics of the dental company Colosseum in Oslo, Norway, for a decade. He has extensive experience in treating children, adolescents, and adults, using both conventional orthodontic appliances and invisible appliances (clear aligners, lingual/internal braces). Additionally, he systematically focuses on the treatment of snoring and sleep apnea with intraoral devices.

Το Athens Dental Care είναι μια σύγχρονη οδοντιατρική κλινική στην Πλατεία Μαβίλη (έναντι Αμερικανικής Πρεσβείας). Διαθέτει έναν άνετο, σύγχρονο και φιλικό χώρο, με πολλά ιατρεία ή ειδικότητες, ώστε να καλύπτονται οι διαφορετικές ανάγκες των ασθενών. Με σύγχρονες εγκαταστάσεις και έμφαση στην άνεση του ασθενή, η κλινική αποτελεί μία αξιόπιστη επιλογή για όσους αναζητούν οδοντιατρική φροντίδα υψηλού επιπέδου.

Η επιστημονική ομάδα απαρτίζεται από ειδικευμένους σε διάφορους τομείς της οδοντιατρικής επιστήμης με έμφαση στον τομέα της ορθοδοντικής.

Η κλινική έχει σημαντικές πιστοποιήσεις κυρίως στον τομέα της αόρατης ορθοδοντικής (Invisalign Diamond providers). Προσφέρονται σύγχρονες μέθοδοι όπως αόρατοι νάρθηκες (Invisalign, Spark, Angel, Clear Aligner), γλωσσική ορθοδοντική και αισθητικά σιδεράκια, καλύπτοντας ανάγκες τόσο παιδιών όσο και ενηλίκων. Η θεραπευτική προσέγγιση βασίζεται σε ψηφιακή διάγνωση και εξατομικευμένο σχεδιασμό, διασφαλίζοντας υψηλή ακρίβεια και αισθητικό αποτέλεσμα.

Ακολουθούν ενδεικτικά τα βιογραφικά της ορθοδοντικής ομάδας.

Μελίνα Μωραΐτη:, Ειδικός ορθοδοντικός

Είναι απόφοιτη της Οδοντιατρικής Σχολής του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών. Από τα πρώτα έτη των σπουδών της έχει εργαστεί πλάι σε καταξιωμένους οδοντιάτρους διαφορετικών ειδικοτήτων στην Ελλάδα και στο εξωτερικό (Η.Π.Α., Βέλγιο, Ισπανία). Από το 2015 μέχρι το 2019, παρακολούθησε μεταπτυχιακό πρόγραμμα σπουδών και απέκτησε την ειδικοτήτα της Ορθοδοντικής (MSc. in Advanced Orthodontics & Orthopedics) από το Ευρωπαϊκό Πανεπιστήμιο της Μαδρίτης (Universidad Europea de Madrid). Πιστοποιήθηκε επίσημα ως ιατρός Invisalign (Invisalign Platinum Elite II provider) και είναι απόφοιτη του Master στην Αόρατη Ορθοδοντική (Invisalign® System), με διδάσκοντα τον Dr. Arturo Vela. Εκπαιδεύτηκε , επίσης, και πιστοποίηθηκε στην εφαρμογή ακίνητων γλωσσικών αγκυλίων (“σιδεράκια”) με τη ψηφιακή μέθοδο Incognito. Το 2015 μετεκπαιδεύτηκε στη Γερμανία και πιστοποιήθηκε στη μέθοδο της Αόρατης Ορθοδοντικής με τη χρήση διαφανών ναρθήκων “Clear Aligner”. Έχει βραβευτεί για ερευνητικές της εργασίες και έχει συμμετέχει σε παρουσιάσεις εργασιών σε διεθνή συνέδρια, καθώς και έχει δημοσιεύσει άρθρα σε επιστημονικά περιοδικά. Από το 2019, οργάνωσε και στελέχωσε το Athens Dental Care σύμφωνα με τα διεθνή πρωτόκολλα άσκησης της ορθοδοντικής κι ασκεί την ορθοδοντική στην κλινική μας. Είναι ενεργό μέλος μεγάλων Μη Κυβερνητικών Οργανώσεων, μεταξύ των οποίων οι “Γιατροί του Κόσμου”, “Actionaid” και η ομάδα “Σύμπλευση”, παρέχοντας εθελοντικά στον ελεύθερό της χρόνο δωρεάν οδοντιατρική φροντίδα σε κοινωνικά αποκλεισμένες ομάδες συνανθρώπων μας.

Dr. Pablo Lirio del Saz, Ειδικός ορθοδοντικός

Είναι καθηγητής Ορθοδοντικής στο μεταπτυχιακό πρόγραμμα του Πανεπιστημίου C.E.U. San Pablo στη Μαδρίτη και επίσημος ομιλητής της Invisalign σε Ελλάδα και Ευρώπη. Απόφοιτος και διδάκτορας (PhD) της Οδοντιατρικής Σχολής του Ευρωπαϊκού Πανεπιστημίου της Μαδρίτης, διαθέτει εξειδίκευση στην Προχωρημένη Ορθοδοντική (MSc Advanced Orthodontics), καθώς και επιπλέον εξειδικευμένα Masters στην Αόρατη Ορθοδοντική (Invisalign® System) και στην τεχνική Tip Edge Plus, υπό την καθοδήγηση του Dr. Arturo Vela. Διαθέτει επίσης εκπαίδευση στον σχεδιασμό στοματικής αποκατάστασης με τον Dr. Aníbal Alonso. Από το 2015 ασκεί αποκλειστικά την ορθοδοντική σε κλινικές στην Ισπανία (Μαδρίτη, Κόρδοβα, Τενερίφη) και την Αθήνα, ενώ από το 2019 είναιCare. Είναι πιστοποιημένος Invisalign Diamond provider και επιστημονικός υπεύθυνος των ορθοδοντικών θεραπειών στο Athens Dental Care ειδικός στη γλωσσική ορθοδοντική με το σύστημα 3M Incognito®, ενώ αποτελεί ενεργό μέλος της Ισπανικής Ορθοδοντικής Εταιρείας (SEDO). Έχει συγγράψει και δημοσιεύσει πολυάριθμα επιστημονικά άρθρα, συμβάλλοντας ενεργά στην προώθηση της σύγχρονης ορθοδοντικής επιστήμηςο οποίος είναι επίσημος ομιλητής (speaker) για όλη την Ευρώπη της μεθόδου της Αόρατης Ορθοδοντικής Invisalign .

Γιακουμάκη Πηνελόπη

Έμπειρη και πολυσχιδής άσκηση της ορθοδοντικής με μακρά πορεία στην οδοντιατρική επιστήμη και έντονη κοινωνική δράση. Απόφοιτη της Οδοντιατρικής Σχολής του Πανεπιστημίου Αθηνών, συνέχισε τις μεταπτυχιακές σπουδές της στο Παρίσι, συνδυάζοντας την οδοντιατρική με σπουδές στις ανθρώπινες επιστήμες. Η επαγγελματική της πορεία ξεκίνησε από το Ευρωπαϊκό Κοινοβούλιο και συνεχίστηκε με σημαντική επιστημονική δραστηριότητα στην Ελλάδα, ως συνεργάτης της Οδοντιατρικής Σχολής Αθηνών, ιδρυτικό μέλος της εταιρείας της Κοινωνικής Οδοντιατρικής. Το 2006 ίδρυσε την κλινική Athens Dental Care, υλοποιώντας το όραμά της για μια πρότυπη με πολυειδικότητες οδοντιατρική δομή με έμφαση στην ολοκληρωμένη και σύγχρονη προσέγγιση της στοματικής υγείας, αλλά και στην "πράσινη" διαχείριση. Με ενεργό παρουσία και στις Βρυξέλλες, η κα Γιακουμάκη είναι πιστοποιημένη στη μέθοδο της Αόρατης Ορθοδοντικής Clear aligner κι έχει διατελέσει υπεύθυνη του ορθοδοντικού τμήματος κλινικών του εξωτερικού, ενώ παράλληλα συμμετέχει σε επιστημονικές εταιρείες, έχει συγγράψει άρθρα και βιβλία, και προωθεί την αόρατη ορθοδοντική μέσα από τα ΜΜΕ. Η κοινωνική της ευαισθησία αποτυπώνεται στη διαρκή στήριξη εθελοντικών και ανθρωπιστικών οργανώσεων.

Smiles Only Dental Clinic consists of three state-of-the-art dental units located in Neo Psychiko, Pallini, and Ampelokipoi, equipped with the latest sterilization and disinfection devices in accordance with international standards and protocols. Our goal is to provide high-quality comprehensive dental care in a completely friendly environment with cutting-edge equipment at very affordable prices. Personal contact with patients is important to us, to create a personalized treatment plan based on their specific needs and desires, with complete absence of pain. To achieve this, we have established a team of specialized and experienced dentists to offer a holistic approach to cases and to guarantee the successful outcome of your treatment.

Dr. Karkazi Frantzeska DMD, MSc specialized in Digital Orthodontics and clear aligners at the University of Torino (Italy).

In 2020, she was awarded the 1st global prize for the best orthodontically treated case at the 9th World Orthodontic Congress in Yokohama (Japan).

In 2023, she was honored by the World Federation of Orthodontists at the American Orthodontic Conference (New Orleans) with the Changing Lives Award (Lee W. Graber).

The doctor focuses on orthodontic treatment guided by facial proportions to achieve a beautiful and functional smile that harmonizes with the rest of the face (Facial Driven Orthodontics).

The clinic is equipped with one of the first intraoral digital scanners in Greece.

Recordings with the scanner allow for better treatment planning and case monitoring, giving the patient the opportunity to see the final result of the treatment.

Kaima Katerina DDS, MSc, MOrth is an Orthodontist with private practices in Peristeri ("Orthodontic Clinic" - next to Anthoupoli Metro Station) and Nikaia ("Contemporary Dental" - next to Nikaia Metro Station), where she exclusively deals with the full spectrum of Orthodontics. She obtained her Dental Surgery degree in 2016 (DDS). In September 2018, she began her Orthodontic specialty training at the University of Manchester, United Kingdom. The three-year specialty program included both clinical practice with a wide range of patients and research activities. In 2021, after submitting her thesis titled “Does the use of lateral cephalometric radiography increase the reliability and accuracy in localisation of ectopic maxillary canines?”, she graduated with distinction, earning the Master's degree "Master of Science (MSc) in Orthodontics." Simultaneously, after passing the examinations of the Royal College of Surgeons of England, she received the Membership in Orthodontics (MOrth) title. From September 2021 to September 2022, she worked at the University Dental Hospital of Manchester and the orthodontic clinic at Countess of Chester Hospital. The Orthodontist is certified in the Invisalign technique (clear aligners – invisible orthodontics) and is a member of the Dental Association of Attica (DAS), the Society of Orthodontics & Craniomaxillofacial Study & Research (EOΓME), the British Dental Association (GDC), the British Orthodontic Society (BOS), as well as the Faculty of Dental Surgery (FDS) – Royal College of Surgeons of England (RCS England).

Kapogianni Eirini is an Orthodontist for children and adults, practicing privately in Chalandri. She studied at the Dental School of the National and Kapodistrian University of Athens. Subsequently, she obtained her specialty in Orthodontics in Germany, following a three-year specialization at the University of Düsseldorf. She was trained by the world-renowned professors Drescher and Wilmes, who are internationally recognized pioneers in contemporary orthodontic treatment techniques. She successfully completed her specialty and then worked for four years at the largest private dental clinic in Germany, assuming the position of Director of the Orthodontic Clinic. During her extended stay in Germany, she gained extensive experience in the diagnosis and treatment of all orthodontic problems. She has received certification and specialization in all modern orthodontic techniques, such as Invisible Orthodontics with Clear Aligners, Lingual Orthodontics, Mini Orthodontic Implants, and Combined Orthodontic and Maxillofacial Surgical Treatments. Her primary research interest focuses on the treatment of prognathism in children, while her research work titled "Effect of Implant Coupling on Their Initial Stability" is the subject of her doctoral thesis. Alongside her clinical work, she delivers seminars and hands-on courses at universities abroad and in Greece and trains orthodontists and postgraduate students in contemporary orthodontic techniques.