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Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie OnlineFirst articles

02.02.2023 | Original Article

Discoloration of stretched colored elastomeric modules

An in vivo study

The increasing use of modern orthodontic appliances in adults is accompanied by a demand for esthetic orthodontic tools and devices. Ceramic brackets, which are perceived as having greater esthetics, have been available for about 20 years and are …

verfasst von:
Athraa A. Abass, MSc BDS, Akram S. Alyessary, PhD MSc BDS

Open Access 26.01.2023 | Original Article

In vivo assessment of artefacts in MRI images caused by conventional twistflex and various fixed orthodontic CAD/CAM retainers

Magnetic resonance imaging (MRI) is the established non-ionizing image modality of choice for head and neck disorders [ 1 , 2 ]. Moreover, MRI is also being increasingly used for dental imaging due to recent technical developments [ 3 – 7 ].

verfasst von:
Dr. med. dent. Christoph J. Roser, DMD, Tim Hilgenfeld, MD, Muhammad Abdullah Saleem, MSc, Thomas Rückschloß, MD DMD, Sabine Heiland, PhD, Martin Bendszus, MD, Christopher J. Lux, DMD, Alexander Juerchott, MD

Open Access 18.01.2023 | Original Article

Dentoskeletal effects of clear aligner vs twin block—a short-term study of functional appliances

Class II malocclusion can be a result of maxillary protrusion, mandibular retrusion, or a combination of factors [ 1 – 3 ]. When class II, division 1 malocclusion is associated with mandibular skeletal retrusion, a viable treatment option is the …

verfasst von:
Elisabetta Cretella Lombardo, Roberta Lione, Lorenzo Franchi, Francesca Gaffuri, Cinzia Maspero, Paola Cozza, Chiara Pavoni

12.01.2023 | Original Article

Comparison of the asymmetry index determined on digital panoramic radiographic images and on posteroanterior cephalometric images: a retrospective cross-sectional study

In vertebrates, bilateral structures are generally symmetrical with each other. However, perfect symmetry is a theoretical concept. For example, the face has a natural degree of asymmetry [ 1 ].

verfasst von:
Humeyra Tercanli Alkis, PhD, Kader Azlag Pekince, Assistant Professor

11.01.2023 | Original Article

Changes in strain energy density in the temporomandibular joint disk after sagittal split ramus osteotomy using a computed tomography-based finite element model

Sagittal split ramus osteotomy (SSRO) and intraoral vertical ramus osteotomy (IVRO) are widely used to correct dentofacial deformities [ 1 – 3 ]. Zhao et al. reported that both SSRO and IVRO are biologically adequate procedures to correct …

verfasst von:
Kazuhiro Murakami, DDS, PhD, Kazuhiko Yamamoto, DDS, PhD, Masayoshi Kawakami, DDS, PhD, Satoshi Horita, DDS, PhD, Tadaaki Kirita, DDS, DMSc

07.12.2022 | Original Article

Cephalometric analysis of parents of patients with cleft lip and/or palate

Cleft lip and/or palate (CL ± P) or isolated clefts of the palate (CP) are among the most common congenital malformations, requiring complex long-term treatment and having lifelong implications [ 26 ]. They reflect a breakdown in the normal …

verfasst von:
Dr. H. Hari Kishore Bhat, MDS, Venkatesh Anehosur, Varsha Haridas Upadya, Niranjan Kumar, Vijayanand Madhur

29.11.2022 | Original Article

Influence of surface treatments on the bond strength of metal brackets to CAD/CAM materials and discoloration after various refinishing procedures

Scanning electron microscopy and atomic force microscopy study

During adult orthodontic treatment, fixed orthodontic attachments often need to be bonded to restoration surfaces other than the tooth enamel surface [ 1 ]. In recent years, restorative materials introduced to the market have been rapidly developed …

verfasst von:
Murat Tunca, Beyza Unalan Degirmenci

28.11.2022 | Original Article

Comparative assessment of frictional forces between differently designed esthetic brackets during simulated canine retraction

Orthodontic tooth movement using fixed orthodontic appliances involving contact of the bracket and the archwire results in friction (FR) that leads to resistance to sliding (RS). RS is a phenomenon that occurs in the bracket–archwire interaction …

verfasst von:
Dr. Ahmed Youssef, Dr. Tarek El-Bialy, Professor Christoph Bourauel

Open Access 11.11.2022 | Original article

Inadvertent side effects of fixed lingual retainers

An in vitro study

Long-term stability after active tooth movement is substantial and retention is a key part of the orthodontic treatment. In recent years, the number of inserted fixed retainers has increased as they are very effective and require less patient …

verfasst von:
Marlen Seide, Teresa Kruse, Isabelle Graf, Christoph Bourauel, Bernd G. Lapatki, Rudolf Jäger, Bert Braumann

17.10.2022 | Original Article

Bond strength, degree of conversion, and microorganism adhesion using different bracket-to-enamel bonding protocols

The use of adhesive procedures for bonding orthodontic brackets to dental enamel has enabled simplification of clinical procedures, which is associated with better esthetics and more conservative techniques [ 1 ]. Enamel conditioning with …

verfasst von:
Lorena Marques Ferreira de Sena, DDS MS PhD, Dayanne Monielle Duarte Moura, DDS MS PhD, Isabelle Helena Gurgel de Carvalho, DDS, MS, Adjunct Professor Leopoldina de Fatima Dantas de Almeida, DDS MS PhD, Nathalia Ramos da Silva, DDS MS, Adjunct Professor Rodrigo Othávio de Assunção e Souza, DDS MS PhD

Open Access 14.10.2022 | Original Article

Individual dental and skeletal age assessment according to Demirjian and Baccetti: Updated norm values for Central-European patients

Orthodontic decision-making requires knowledge about dental and skeletal development to optimise timing of orthodontic treatment in dependence of biological age [ 51 ]. Skeletal maturity provides information about expected growth potential, which …

verfasst von:
Dr. med. dent. Eva Paddenberg, Adrian Dees, Peter Proff, Christian Kirschneck

28.09.2022 | Original Article

Soft tissue evaluation after maxillary protraction with RPE or with the ALT-RAMEC protocol

A controlled 3D study

Among all malocclusions, class III is very often associated with an unacceptable profile, which might be challenging for the psychology and social lives of the affected individuals. Treating these patients will not only improve occlusal function …

verfasst von:
Assistant Prof. Elvan Onem Ozbilen, DDS Specialist in Orthodontics, Mustafa Onur Ari, DDS Specialist in Orthodontics, Associate Prof. Hanife Nuray Yilmaz, DDS PhD, Prof. Sibel Biren, DDS PhD

21.09.2022 | Original Article

Low-level laser therapy, piezocision, or their combination vs. conventional treatment for orthodontic tooth movement

A hierarchical 6-arm split-mouth randomized clinical trial

Orthodontic treatments are usually time-consuming, and the long period of treatment poses the risk of caries [ 1 ], external root resorption [ 2 ], and reduced patient cooperation [ 3 ]. Thus, some methods have been introduced to accelerate tooth …

verfasst von:
Mehrnaz Moradinejad, Rayan Chaharmahali, Milad Shamohammadi, Maziar Mir, Vahid Rakhshan

15.09.2022 | Original Article

Effect of light-emitting photobiomodulation therapy on the rate of orthodontic tooth movement

A randomized controlled clinical trial

Future generations will likely refer to the first quarter of the 21st century as the “Beginning of the Acceleration Period”. Because communication has accelerated dramatically, the availability of copious amounts of information, and thanks to the …

verfasst von:
Yaman Güray, A. Sema Yüksel

15.09.2022 | Original Article

Effects of maxillary expansion and protraction on pharyngeal airway dimensions in relation to changes in head posture and hyoid position

A retrospective cohort study

Class III malocclusion, one of the most challenging orthodontic problems to treat, is an anomaly in the sagittal dimension resulting from maxillary deficiency and/or retrusion with mandibular excess and/or protrusion [ 1 , 2 ]. Maxillary skeletal …

verfasst von:
Gökhan Çoban, Taner Öztürk, DDS, MDS, Merve Ece Erdem, Hatice Cansu Kış, Ahmet Yağcı

14.09.2022 | Original Article

Effects of offset design on the accuracy of bracket placement with a guided bonding device

Ideal bracket placement guarantees accurate and efficient orthodontic treatment [ 1 ]. To improve the accuracy of bracket placement, various approaches have been developed, such as polyvinyl siloxane trays, vacuum-formed trays [ 2 ], and transfer …

verfasst von:
Bin Li, Peiqi Wang, M.D.S., Hui Xu, D.D.S., Rui Gu, Xianglong Han, D.D.S., Ding Bai, D.D.S., Chaoran Xue, D.D.S.

09.09.2022 | Original Article

Impacts of childhood malocclusion on the family

Puberty is a time of intense physical and emotional changes of the child that are reflected on the whole family. Presence of malocclusions, body image, and self-perception of young adolescents can greatly affect their personal life, self-esteem …

verfasst von:
Jelena Pipovic, Mia Uhac, Vjera Perkovic, Martina Zigante, Neda Stefanovic, Stjepan Spalj

Open Access 26.08.2022 | Original Article

Three-dimensional mandibular characteristics in skeletal malocclusion

A cross-sectional study

Predicting the skeletal growth pattern of children and adolescents is essential in orthodontic diagnosis and treatment [ 1 , 2 ]. To develop an adequate treatment plan, the clinician has to estimate the craniofacial growth tendencies correctly. In …

verfasst von:
Carolin Olbrisch, Petra Santander, Norman Moser, Daniela Klenke, Philipp Meyer-Marcotty, Anja Quast

26.08.2022 | Original Article

Effect of micro-osteoperforations (MOPs) on the rate of en masse orthodontic tooth retraction

A randomized controlled trial

For the current generation of socially active individuals, prolonged orthodontic treatment duration is a major concern, often causing them to avoid treatment or seek alternative options. Of the many factors affecting treatment duration, the …

verfasst von:
Prashant Kumar, MDS, Abdulqadir H. Rampurawala, MDS, Professor Amol S. Patil, MDS, PhD

Open Access 26.08.2022 | Original Article

A novel machine learning model for class III surgery decision

The most important part of orthodontic treatment is a proper diagnosis and the establishment of a treatment plan [ 1 ]. A proper diagnosis defines the problems of the patient so that a problem list can be identified. Once the diagnosis is made …

verfasst von:
Hunter Lee, DDS MSD, Sunna Ahmad, Michael Frazier, DDS MS BS, Mehmet Murat Dundar, BS MS PhD, Hakan Turkkahraman, DDS PhD