Abstract
Asymmetric malocclusions have been always a challenge to orthodontists, with different
dental, skeletal or dentoskeletal factors being probable causes for the condition.
It is key to distinguish between dental and skeletal asymmetry before determining
a predictable force system for corrective treatment. The use of mini-implants (MIs)
to address anchorage needs in modern orthodontic practice has become an important
tool for orthodontists. They have been widely used for anchorage reinforcement purposes
and placed in the dentoalveolar region, especially between tooth roots (inter-radicular
miniscrews). However, placement sites other than root areas allow more versatility
of orthodontic movement since tooth roots do not interfere in tooth displacement,
such as the extra-alveolar miniscrews.
Objective The objective of the present paper is to present biomechanical concepts
in which extra-alveolar mini-implants are placed in the infrazygomatic crest (IZC)
and buccal shelf (BS) areas for correction of dento-facial asymmetries allowing predictable
outcomes to be achieved with minimal need for patient's compliance and minor mechanic
side effects.
To read this article in full you will need to make a payment
Purchase one-time access:
Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online accessOne-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to Seminars in OrthodonticsAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- Ortodontia clínica e biomecânica.(cap.8)Aplicação da Biomecânica na correção das assimetrias ortodônticas. Dental Press, Maringá, Paraná, Brazil2010: 243-300
- Aplicação da biomecânica na correção das assimetrias dentárias.Rev Clín Ortod Dental Press. 2009; 7: 92-98
- Treatment strategies for midline discrepancies.Sem Orthod. 1996; 2: 84-89
- Tratamento da má oclusão de Classe II subdivisão com distalização assimétrica de molares superiores.Rev Clín Ortod Dental Press. 2013; 12: 50-62
- Prevalence and etiology of asymmetries in occlusion.Angle Orthod. 1979; 49: 199-204
- Prevalence of orthodontic asymmetries.Semin Orthod. 1998; 4: 138-145
- Skeletal and dental asymmetries in Class II subdivision malocclusions using cone-beam computed tomography.Am J Orthod Dentofacial Orthop. 2010; 138 (542.e1-542.e20)
- Facial esthetics in relation to orthodontic treatment.Angle Orthod. 1952; 22: 3-22
- Pitch, roll, and yaw: describing the spatial orientation of dentofacial traits.Am J Orthod Dentofacial Orthop. 2007; 131: 305-310
- A prospective study of the risk factors associated with failure of mini implants used for orthodontic anchorage.Int J Oral Maxillofac Implants. 2004; 19: 100-106
- Group distal movement of teeth using microscrew implant anchorage.Angle Orthod. 2005; 75: 602-609
- Biomecânica do tratamento compensatório da má-oclusão de Classe III utilizando ancoragem esquelética extra-alveolar.Rev Clín Ortod Dental Press. 2016; 15: 74-76
- Biomecânica dos mini-implantes inseridos na região de crista infrazigomática para correção de má-oclusão de Classe II subdivisão.Rev. Clin Ortod Dental Press. 2017; 15: 90-105
- Biomecânica de distalização dentoalveolar com mini-implantes extra-alveolares em paciente Classe I com biprotrusão.Rev. Clin Ortod Dental Press. 2017; 16: 61-76
- Mini-implantes extra-alveolares em Ortodontia.1ed. Dental Press, Maringá2018
- Primary failure rate for 1680 extra-alveolar mandibular buccal shelf miniscrews placed in movable mucosa or attached gingiva.Angle Orthod. 2015; 85: 905-910
- A retrospective study of the extra-alveolar screw placement on buccal shelves.Int J Orthod Implantol. 2013; 32: 80-89
- Comparison of the failure rate for infra-zygomatic bone screws placed in movable mucosa or attached gingiva.Int J Orthod Implantol. 2017; 47: 96-106
- Bone and cortical bone thickness of mandibular buccal shelf for mini-screw insertion in adults.Angle Orthod. 2017; 87: 745-751
- Anatomic assessment of the mandibular buccal shelf for miniscrew e insertion in white patients.Am J Orthod Dentofacial Orthop. 2018; 153: 505-511
- Evaluation on the movement of endosseous titanium implants under continuous orthodontic forces: an experimental study in the dog.Clin Oral Implants Res. 2008; 19: 618-623
- Mini-implantes extra-alveolares no tratamento das assimetrias em Ortodontia.Rev Clín Ortod Dental Press. 2018; 17: 79-92
- Biomechanics of extra-alveolar mini-implants.Dental Press J Orthod. 2019; 24: 93-109
- Total arch maxillary distalization using infrazygomatic crest miniscrews in the treatment of Class II malocclusion: a prospective study.Angle Orthod. 2022; (Epub ahead of print. PMID: 36126679)https://doi.org/10.2319/050122-326.1
- Ravindra Nanda on orthodontic mechanics. Interview by Robert G Keim.JCO. 2010; 44: 293-302
- Biomechanics of extra- alveolar mini-implant use in the infrazygomatic crest area for asymmetrical correction of class II subdivision malocclusion.APOS Trends Orthod. 2018; 8: 110-118
- Uma entrevista com Marcio Almeida.Rev Clín Ortod Dental Press. 2018; 17: 6-32
- Alinhadores transparentes e Ortodontia.Rev Clín Ortod Dental Press. 2019; 18: 4-6
- Patient satisfaction and quality of life changes after Invisalign treatment.Am J Orthod and Dentofacial Orthop. 2018; 153: 834-841
- Acessórios para auxílio da movimentação dental com alinhadores.OrtodontiaSPO. 2019; 52: 386-392
- Extra-alveolar mini-implants associated to aligners for Class II malocclusion treatment.Clin Orthod. 2020; 19 (00-00)
- Integrating skeletal anchorage into fixed and aligner biomechanics.J World Fed Orthod. 2022; 11: 95-106
- Temporary skeletal anchorage devices to correct challenging malocclusions with clear aligners.AJO-DO Clinical Companion. 2021; 1: 102-112
Article info
Publication history
Published online: November 01, 2022
Identification
Copyright
© 2022 Elsevier Inc. All rights reserved.
