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Dental Press Journal of Orthodontics 2023Intermaxillary elastics are orthodontic resources widely used in various malocclusions. Their main advantages are low cost, easy insertion and removal by patients, and...
INTRODUCTION
Intermaxillary elastics are orthodontic resources widely used in various malocclusions. Their main advantages are low cost, easy insertion and removal by patients, and application versatility. As main disadvantages, we can highlight the need for cooperation from patients and the side effects normally present in treatments with this resource. Knowledge of the biomechanics involved in the use of intermaxillary elastics is essential to take full advantage of the desired effects and avoid unwanted effects in their use.
OBJECTIVE
Therefore, the objective of this article is to describe the anchorage preparation, connection methods, time and force of use, and side effects involved in the use of intermaxillary elastics for the treatment of anteroposterior, vertical and transverse problems. For that, clinical cases and biomechanics schemes will be presented, in which all these details will be described.
Topics: Humans; Biomechanical Phenomena; Mechanical Phenomena; Malocclusion, Angle Class II; Malocclusion
PubMed: 37493850
DOI: 10.1590/2177-6709.28.3.e23spe3 -
Zhonghua Kou Qiang Yi Xue Za Zhi =... Aug 2022Oral habits, such as mouth breathing, sucking, and lip and tongue habits, are important factors that lead to malocclusion. The abnormal pressure will disrupt the muscle...
Oral habits, such as mouth breathing, sucking, and lip and tongue habits, are important factors that lead to malocclusion. The abnormal pressure will disrupt the muscle balance of the oral and maxillofacial complex and interfere with the normal development of the maxillofacial complex. Therefore, early diagnosis and successful treatment of oral habits are pivotal to the early treatment of malocclusion. This paper discusses the malocclusion caused by children's oral habits and the corresponding intervention methods.
Topics: Child; Fingersucking; Habits; Humans; Malocclusion; Mouth Breathing; Tongue Habits
PubMed: 35970776
DOI: 10.3760/cma.j.cn112144-20220411-00170 -
International Journal of Oral Science Apr 2024Malocclusion, identified by the World Health Organization (WHO) as one of three major oral diseases, profoundly impacts the dental-maxillofacial functions, facial... (Review)
Review
Malocclusion, identified by the World Health Organization (WHO) as one of three major oral diseases, profoundly impacts the dental-maxillofacial functions, facial esthetics, and long-term development of ~260 million children in China. Beyond its physical manifestations, malocclusion also significantly influences the psycho-social well-being of these children. Timely intervention in malocclusion can foster an environment conducive to dental-maxillofacial development and substantially decrease the incidence of malocclusion or reduce the severity and complexity of malocclusion in the permanent dentition, by mitigating the negative impact of abnormal environmental influences on the growth. Early orthodontic treatment encompasses accurate identification and treatment of dental and maxillofacial morphological and functional abnormalities during various stages of dental-maxillofacial development, ranging from fetal stages to the early permanent dentition phase. From an economic and societal standpoint, the urgency for effective early orthodontic treatments for malocclusions in childhood cannot be overstated, underlining its profound practical and social importance. This consensus paper discusses the characteristics and the detrimental effects of malocclusion in children, emphasizing critical need for early treatment. It elaborates on corresponding core principles and fundamental approaches in early orthodontics, proposing comprehensive guidance for preventive and interceptive orthodontic treatment, serving as a reference for clinicians engaged in early orthodontic treatment.
Topics: Humans; Child; Consensus; Malocclusion; Dental Care; China
PubMed: 38627388
DOI: 10.1038/s41368-024-00299-8 -
International Journal of Molecular... Jan 2023Skeletal deformities and malocclusions being heterogeneous traits, affect populations worldwide, resulting in compromised esthetics and function and reduced quality of... (Review)
Review
Skeletal deformities and malocclusions being heterogeneous traits, affect populations worldwide, resulting in compromised esthetics and function and reduced quality of life. Skeletal Class III prevalence is the least common of all angle malocclusion classes, with a frequency of 7.2%, while Class II prevalence is approximately 27% on average, varying in different countries and between ethnic groups. Orthodontic malocclusions and skeletal deformities have multiple etiologies, often affected and underlined by environmental, genetic and social aspects. Here, we have conducted a comprehensive search throughout the published data until the time of writing this review for already reported quantitative trait loci (QTL) and genes associated with the development of skeletal deformation-associated phenotypes in different mouse models. Our search has found 72 significant QTL associated with the size of the mandible, the character, shape, centroid size and facial shape in mouse models. We propose that using the collaborative cross (CC), a highly diverse mouse reference genetic population, may offer a novel venue for identifying genetic factors as a cause for skeletal deformations, which may help to better understand Class III malocclusion-associated phenotype development in mice, which can be subsequently translated to humans. We suggest that by performing a genome-wide association study (GWAS), an epigenetics-wide association study (EWAS), RNAseq analysis, integrating GWAS and expression quantitative trait loci (eQTL), micro and small RNA, and long noncoding RNA analysis in tissues associated with skeletal deformation and Class III malocclusion characterization/phenotypes, including mandibular basic bone, gum, and jaw, in the CC mouse population, we expect to better identify genetic factors and better understand the development of this disease.
Topics: Humans; Animals; Mice; Genome-Wide Association Study; Quality of Life; Cephalometry; Malocclusion; Malocclusion, Angle Class III; Mandible; Phenotype
PubMed: 36768894
DOI: 10.3390/ijms24032570 -
ACS Nano Sep 2023Malocclusion is a prevalent dental health problem plaguing over 56% worldwide. Mechanical orthodontic aligners render directional teeth movement extensively used for...
Malocclusion is a prevalent dental health problem plaguing over 56% worldwide. Mechanical orthodontic aligners render directional teeth movement extensively used for malocclusion treatment in the clinic, while mechanical regulation inefficiency prolongs the treatment course and induces adverse complications. As a noninvasive physiotherapy, an appropriate electric field plays a vital role in tissue metabolism engineering. Here, we propose an occlusion-activated electromechanical synergistic dental aligner that converts occlusal energy into a piezo-excited alternating electric field for accelerating orthodontic tooth movement. Within an 18-day intervention, significantly facilitated orthodontic results were obtained from young and aged Sprague-Dawley rats, increasing by 34% and 164% in orthodontic efficiency, respectively. The different efficiencies were attributed to age-distributed periodontal tissue status. Mechanistically, the electromechanical synergistic intervention modulated the microenvironment, enhanced osteoblast and osteoclast activity, promoted alveolar bone metabolism, and ultimately accelerated tooth movement. This work holds excellent potential for personalized and effective treatment for malocclusions, which would vastly reduce the suffering of the long orthodontic course.
Topics: Rats; Animals; Rats, Sprague-Dawley; Tooth Movement Techniques; Electricity; Engineering; Malocclusion
PubMed: 37590490
DOI: 10.1021/acsnano.3c03385 -
Cranio : the Journal of... May 2021: The aim of this study was to associate the presence of oral habits with anxiety and malocclusion.: Cross-sectional observational study with 199 schoolchildren... (Observational Study)
Observational Study
: The aim of this study was to associate the presence of oral habits with anxiety and malocclusion.: Cross-sectional observational study with 199 schoolchildren 6-14 years old. Malocclusion was evaluated by using the Index of Orthodontic Treatment Need (IOTN). Oral Habits Questionnaire and Hospital Anxiety and Depression Scale (HADS) were used to assess oral habits and anxiety. The schoolchildren were divided into two groups: mixed and permanent dentition. The associations between the outcome variable (oral habits) and the independent variables (anxiety and malocclusion) were evaluated using the Exact Fischer test and the Chi square test.: Of the individuals with malocclusion in permanent dentition, 77.4% reported some deleterious oral habit, and 55% of those with no malocclusion at this stage had deleterious habits.: Oral habits may be associated with the presence of malocclusion in different stages of occlusal development (mixed and permanent dentition) and may be influenced by anxiety.
Topics: Adolescent; Anxiety; Child; Cross-Sectional Studies; Habits; Humans; Malocclusion; Surveys and Questionnaires
PubMed: 31232226
DOI: 10.1080/08869634.2019.1633492 -
Clinical Oral Investigations Oct 2022This study aimed to investigate the malocclusion complexity and orthodontic treatment need among children with and without autism spectrum disorder (ASD) referred for...
OBJECTIVES
This study aimed to investigate the malocclusion complexity and orthodontic treatment need among children with and without autism spectrum disorder (ASD) referred for orthodontic treatment by quantifying the Discrepancy Index (DI) and Index of Orthodontic Treatment Need (IOTN).
MATERIALS AND METHODS
Dental records of 48 ASD and 49 non-ASD consecutive patients aged between 9 and 18 years (median age 13.0 years) referred for orthodontic treatment were reviewed and compared. The Discrepancy Index (DI) was quantified to determine the malocclusion complexity, and the Index of Orthodontic Treatment Need (IOTN), including the Dental Health Component (IOTN-DHC) and Aesthetic Component (IOTN-AC), was quantified to determine the orthodontic treatment need. Statistical analysis included descriptive analysis, Pearson chi-square tests, Fisher's exact test, Mann-Whitney U tests, and several univariate and multivariate regression analyses. The statistical analysis used descriptive analysis, Pearson chi-square test, Fisher's exact test, and multivariate logistic regression.
RESULTS
The results show that both malocclusion complexity (DI, p = 0.0010) and orthodontic treatment need (IOTN-DHC, p = 0.0025; IOTN-AC p = 0.0009) were significantly higher in children with ASD. Furthermore, children with ASD had a higher prevalence of increased overjet (p = .0016) and overbite (p = .031).
CONCLUSIONS
Malocclusion complexity and orthodontic treatment need are statistically significantly higher among children with ASD than children without ASD, independent of age and sex.
CLINICAL RELEVANCE
Children with autism may benefit from visits to a dental specialist (orthodontist) to prevent, to some extent, developing malocclusions from an early age.
Topics: Adolescent; Autism Spectrum Disorder; Child; Esthetics, Dental; Health Services Needs and Demand; Humans; Index of Orthodontic Treatment Need; Malocclusion; Malocclusion, Angle Class II; Orthodontics, Corrective; Overbite
PubMed: 35701552
DOI: 10.1007/s00784-022-04578-8 -
Bundesgesundheitsblatt,... Aug 2021Malocclusions are among the most common human diseases impairing oral health. The present paper gives an overview on their etiology, prevalence, and consequences. It... (Review)
Review
Malocclusions are among the most common human diseases impairing oral health. The present paper gives an overview on their etiology, prevalence, and consequences. It further presents the corrective and preventive potential of orthodontic treatment and gives information on the treatment-associated legal framework in Germany. The use and quality of the orthodontic health service will be described in the international context.The etiology of malocclusions has genetic, epigenetic, functional, and environmental components, which can seldomly be differentiated on the individual level. Previous small, cross-sectional studies show that up to 80% of children in Germany are affected. Eating, drinking, chewing, speaking, and breathing may be impaired and the predisposition for periodontal disease and overuse injuries of the temporomandibular joint and the masticatory musculature increase. A proclination of the upper incisors increases the risk for dental trauma. Furthermore, malocclusions may have negative psychosocial effects and impair quality of life. In cooperation with other dental and/or medical disciplines, orthodontics make positive preventive and curative contributions to oral health, general health, and quality of life.Against this background, orthodontics has a substantial potential for the enhancement of dental prevention in healthcare. This is especially true as the German social health insurance (GKV) allows for a widespread orthodontic treatment coverage of the population at an internationally accepted, high-quality level. To further improve prevention, the implementation of a systematic orthodontic screening at the age of 7-8 years in the form of a systematic preventive measure is recommended.
Topics: Child; Cross-Sectional Studies; Germany; Humans; Malocclusion; Oral Health; Quality of Life
PubMed: 34236450
DOI: 10.1007/s00103-021-03372-3 -
Zhonghua Kou Qiang Yi Xue Za Zhi =... Aug 2022In recent years, the early orthodontic treatment of malocclusion has become a hot issue in the field of orthodontics. Some new phenomena and new problems that have...
In recent years, the early orthodontic treatment of malocclusion has become a hot issue in the field of orthodontics. Some new phenomena and new problems that have emerged require in-depth analysis and discussion, and need to be given correct guidance and norms. Malocclusion refers to the deformities of teeth, jaws, and craniofacial bones caused by genetic and environmental factors during growth and development. Based on the accurate judgment of the etiology and diagnosis, choosing the right time and suitable indications, with the advantage of growth and development, the most suitable appliance can be selected in the early stage of malocclusion to fix malocclusion, and to effectively prevent and block the formation and development of malocclusion. This article will discuss how to timely and appropriately carry out the early prevention and treatment of malocclusion with six aspects, including methods of performing early orthodontic treatment, the basis and guarantee of early orthodontic treatment, correctly understanding early orthodontic treatment, the issues that should be paid attention to in carrying out early orthodontic treatment, actively advocating multidisciplinary cooperation during early orthodontic treatment and understanding face management in a serious way.
Topics: Dental Care; Humans; Malocclusion; Malocclusion, Angle Class II; Orthodontic Appliances, Functional; Orthodontics, Corrective
PubMed: 35970771
DOI: 10.3760/cma.j.cn112144-20220726-00409 -
Nederlands Tijdschrift Voor... May 2024A fracture of the mandibular condyle is a common fracture of the mandible. After the diagnosis has been made, there are various treatment options: wait and see,... (Review)
Review
A fracture of the mandibular condyle is a common fracture of the mandible. After the diagnosis has been made, there are various treatment options: wait and see, conservative or surgical. Which of these treatment options is best depends on several different factors and is often the subject of debate. A common complication of a fracture of the mandibular condyle is malocclusion. Malocclusion can cause problems - even in the long term - for which the patient often requires secondary treatment.
Topics: Humans; Mandibular Condyle; Mandibular Fractures; Malocclusion
PubMed: 38715533
DOI: 10.5177/ntvt.2024.05.23107