scholarly journals Personalized Mechanotherapy: Simultaneous Correction of Posterior Crossbite and Anterior Open Bite in the Presence of Root Shortening

Innovation ◽  
2020 ◽  
Author(s):  
Fanar Abdullah ◽  
Chinapa Sangsuwon ◽  
Sarah Alansari
Keyword(s):  
Open Bite ◽  
Anterior Open Bite ◽  
Posterior Crossbite

Abordagem precoce da má oclusão de Classe II esquelética com atresia maxilar e mordida aberta anterior e o uso de alinhadores ClearCorrect – relato de caso

2021 ◽  
Vol 14 (53) ◽  
pp. 97-106
Author(s):  
Roberto Hideo Shimizu ◽  
Isabela Almeida Shimizu ◽  
Ana Cláudia M. Melo Toyoffuku ◽  
Rebecca Marquesini ◽  
Tatiane Travizan Lima ◽  
...  
Keyword(s):  
Treatment Time ◽  
Low Complexity ◽  
Class Ii ◽  
Open Bite ◽  
Class Ii Malocclusion ◽  
Anterior Open Bite ◽  
Skeletal Class ◽  
Posterior Crossbite ◽  
Skeletal Class Ii ◽  
High Predictability

Adequate planning and early treatment of Angle Class II malocclusion with maxillary atresia and anterior open bite provides harmonization of maxillomandibular bone bases in the three planes of space. Orthodontic aligners have emerged as an alternative treatment having the following advantages: being more aesthetic and more comfortable for the patient, less treatment time when they are correctly indicated, less chairside time, less complications, possibility of remote monitoring, easier feeding, and dental hygiene. On the other hand, they offer difficulties to treat adults with severe skeletal Class II malocclusions, posterior crossbite and anterior open bite. Therefore, the objective of this clinical case report is to early correct skeletal Class II malocclusion with maxillary atresia through the use of mechanical orthopedics and devices that help eliminate habits and close the anterior open bite, and later the use of orthodontic aligners to finish the treatment. It was concluded that the early interceptive treatment of malocclusion was efficient to harmonize the bone bases in the anteroposterior, vertical, and transversal directions, changing this malocclusion from high to low complexity and, consequently, highly predictable and with an excellent prognosis for treatment with orthodontic aligners. The treatment with ClearCorrect aligners corrected the occlusion in a shorter period of time when compared to corrective orthodontics and with a high predictability in relation to the virtual setup.

Epidemiology of Posterior Crossbite in the Primary Dentition

2007 ◽  
Vol 32 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Omar Gabriel da Silva Filho ◽  
Milton Santamaria Jr. ◽  
Leopoldino Capelozza Filho
Keyword(s):  
Epidemiological Survey ◽  
Sao Paulo ◽  
Primary Dentition ◽  
Open Bite ◽  
São Paulo ◽  
Anterior Open Bite ◽  
Posterior Crossbite ◽  
Normal Occlusion ◽  
The City

This epidemiological survey was conducted on 2,016 children from 8 private and 12 public preschools at the city of Bauru, São Paulo, Brazil. The sample was composed of 1,032 males and 984 females in the primary dentition stage, aged 3 to 6 years. Normal occlusion was observed in 26.74% of the sample; thus, 73.26% of children presented some type of malocclusion. Among the malocclusions, the following transverse problems were diagnosed: unilateral posterior crossbite (11.65%), anterior open bite associated with posterior crossbite (6.99%), bilateral posterior crossbite (1.19%), unilateral posterior crossbite associate with anterior crossbite (0.79%) and full crossbite (0.19%) totalizing 20.81% of the transverse problems. Mandibular functional deviation was observed in 91.91% of children with unilateral posterior crossbite, characterizing the functional unilateral posterior crossbite. The results demonstrated that the prevalence of posterior crossbite was compatible with previous data in the literature, with predominance of functional unilateral posterior crossbite.

scholarly journals Relationship between malocclusion and deleterious oral habits in preschool children in Campina Grande, PB, Brazil

2008 ◽  
Vol 55 (3) ◽  
pp. 154-162 ◽  
Author(s):  
Leite Cavalcanti ◽  
Medeiros Bezerra ◽  
Cristiano Moura ◽  
Medeiros Bezerra ◽  
Flávia Granville-Gracia
Keyword(s):  
Preschool Children ◽  
Pediatric Population ◽  
Age Groups ◽  
Positive Association ◽  
Open Bite ◽  
Anterior Open Bite ◽  
Significance Level ◽  
Oral Habits ◽  
Posterior Crossbite ◽  
Significant Difference

Purpose: To evaluate the prevalence of malocclusions in preschool children in the city of Campina Grande, PB, Brazil, and verify the existence of associations between malocclusions and deleterious oral habits, gender and age. Methods: 342 children (3-5-year-old; 196 boys and 146 girls) with complete primary dentition and no previous orthodontic treatment were randomly selected from children regularly attending municipal day care centers. The occurrence of the following malocclusions was evaluated: accentuated overjet and overbite, anterior open bite and posterior crossbite. A calibrated experienced examiner (Kappa = 0.86) performed all clinical examinations under natural lightening after drying the teeth and soft tissue with gauze. Yates' chi-square and Fisher's exact tests verified the association between the variables and odds ratio. Significance level was set at 5%. Results: Malocclusions and deleterious oral habits were observed in 74% and 73.4% of the children, respectively. The prevalence of malocclusion was 68.9% in boys and 80.9% in girls. Accentuated overjet (45%) and anterior open bite (42.4%) were the most prevalent malocclusions. There was statistically significant difference (P = .008) between genders. However, no statistically significant differences (P = .47) were found among the age groups. Accentuated overjet, anterior open bite and posterior crossbite showed a positive association with the presence of deleterious oral habits. Conclusions: The high prevalence of malocclusions and deleterious oral habits observed in this pediatric population is supportive to the fact that oral health professionals that treat patients in these age groups should be aware of the importance of an early and accurate diagnosis in order to avoid the aggravation of occlusal alterations in the future.

scholarly journals LIMITED ORTHODONTIC TREATMENT IN MYOTONIC DYSTROPHY II

2017 ◽  
Vol 16 (4) ◽  
pp. 158-165
Author(s):  
Aurelia Magdalena Enache ◽  
◽  
Alexandru Marghescu ◽  
Roxana Antoanela Baluta ◽  
Maria Otilia Blajin ◽  
...  
Keyword(s):  
Myotonic Dystrophy ◽  
Open Bite ◽  
Type Ii ◽  
Myotonic Dystrophy Type ◽  
Class Iii ◽  
Anterior Open Bite ◽  
Posterior Crossbite ◽  
Diagnostic Signs ◽  
Dominant Disease ◽  
Craniofacial Features

Rationale. Myotonic dystrophy (MD) is a multisystemic autosomal dominant disease characterized by myotonia and progressive muscular weakness and atrophy. Objective. The purpose of this study was to describe the dental, skeletal and muscular features in a family with myotonic dystrophy type II and to discuss possible therapeutic strategies. Methods and results. This study presents the case of a family (a mother and two daughthers) diagnosed with myotonic dystrophy type II. Beside the medical history and genetic tests, each subject underwent a clinical examination including impression taking, intra- and extraoral photographs and cephalometric analysis. Our investigations revealed alterations in the transversal and vertical planes. Conclusions. Our findings were consistent with previously reported craniofacial features of patients affected by myotonic disorders, and they may be important diagnostic signs of a congenital muscular disease. We found that the most predominant malocclusions were the anterior open bite and posterior crossbite, but the tendency to class III malocclusion is in contradiction with their findings.

scholarly journals Nonsurgical treatment of a hyperdivergent skeletal Class III patient with mini-screw–assisted mandibular dentition distalization and flattening of the occlusal plane

2021 ◽  
Author(s):  
Yiruo He ◽  
Yangyang Wang ◽  
Xinghai Wang ◽  
Jiangyue Wang ◽  
Ding Bai ◽  
...  
Keyword(s):  
Treatment Plan ◽  
Open Bite ◽  
Nonsurgical Treatment ◽  
Occlusal Plane ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Anterior Open Bite ◽  
Skeletal Class ◽  
Posterior Crossbite ◽  
Mandibular Plane

ABSTRACT Treatment of hyperdivergent skeletal Class III malocclusion is challenging for orthodontists, and orthognathic-orthodontic treatment is usually required. This report presents the successful nonsurgical treatment of a 20-year-old man who had a skeletal Class III malocclusion with anterior open bite, anterior and posterior crossbite, hyperdivergent growth pattern, steep occlusal plane, early loss of three first molars, and an uncommon convex profile with a retruded chin. An orthodontic camouflage treatment plan was chosen based on the etiology and the patient's complaints. Tooth #37 was extracted. Miniscrews were used for uprighting and intruding of the lower molars, distalization of the lower dentition, and flattening of the occlusal plane. After 34 months of active treatment, Class I relationships, proper anterior overjet and overbite, flat occlusal plane, and an esthetic facial profile were achieved. The results demonstrated that the biomechanics involved in the nonsurgical treatment assisted with miniscrews to distalize the mandibular dentition and flatten the occlusal plane while keeping the mandibular plane stable was effective for treating this hyperdivergent skeletal Class III patient with a convex profile and anterior open bite.

scholarly journals Impact of primary dentition malocclusion on the oral health-related quality of life in preschoolers

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Fernanda Marques Torres de Vasconcelos ◽  
Filipe Colombo Vitali ◽  
Marcos Ximenes ◽  
Loraine Fernandes Dias ◽  
Carla Pereira da Silva ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Oral Health ◽  
Primary Dentition ◽  
Open Bite ◽  
Health Related Quality ◽  
Anterior Open Bite ◽  
Posterior Crossbite ◽  
Related Quality ◽  
Health Related

Abstract Background Malocclusion is a condition frequently seen in primary dentition due to the interaction of environmental, genetic and behavioural factors. The occurrence of some types of malocclusions can have an impact on oral health-related quality of life in children. Hence, the present study aimed to verify the impact of primary dentition malocclusion on oral health-related quality of life in preschool children. Methods A population-based cross-sectional study was conducted in Florianopolis, Brazil, with a representative sample of 1050 preschoolers aged between 2 and 5 years, randomly selected. Parents answered the Brazilian version of the Early Childhood Oral Health Impact Scale and also to a questionnaire on socio-economic indicators. Data obtained from the questionnaire were obtained by item response theory based on model of gradual response. The malocclusion assessed was: anterior open bite, increased overjet and posterior crossbite. Poisson regression model was employed for multivariate analysis (P < 0.05). Results Malocclusion was observed in 36.7% of the children. Of these, 11.4% were anterior open bite, 67.2% were increased overjet, and 21.4% were posterior crossbite. Malocclusion's impact on oral health-related quality of life was 28.6%. In children aged 4–5 years, the prevalence of malocclusion’s impact on quality of life was 49.5% higher than in children aged 2–3 years. Statistical analysis showed that preschool children with malocclusion showed no significant impact on quality of life. Conclusions The findings of the present study indicate that the occurrence of primary dentition malocclusion has no impact on the quality of life of children aged 2–5 years.

Occlusal traits and longitudinal dental changes in children and adolescents with congenital or childhood onset myotonic dystrophy

2020 ◽  
Author(s):  
Clara Fontinha ◽  
Monica Engvall ◽  
Lotta Sjögreen ◽  
Åsa Mårtensson ◽  
Anne-Berit Ekström ◽  
...  
Keyword(s):  
Children And Adolescents ◽  
Myotonic Dystrophy ◽  
Open Bite ◽  
Control Group ◽  
Class Iii ◽  
Healthy Individuals ◽  
Anterior Open Bite ◽  
Posterior Crossbite ◽  
Changes Over Time ◽  
Over Time

Summary Background/objectives This research aimed to study the malocclusions of children and adolescents with myotonic dystrophy type 1 (DM1), in respect to healthy individuals, and trace the occlusal changes that occurred in these individuals during growth. Materials/methods Thirty-six dental casts, from children and adolescents with DM1 living in western and southern Sweden, were compared with a control group of 50 healthy individuals. To identify potential changes in occlusal traits, 26 casts were assessed and followed-up over a median time of 9 years. Independent samples t-tests were used to compare the two groups and their changes over time. Paired samples t-tests tested changes over time within each group (P &lt; 0.05). Results DM1 patients had a higher prevalence of anterior open bite, posterior crossbite, and Class III malocclusions. When compared to controls, patients presented smaller upper and lower intermolar as well as intercanine widths. In both groups, the individuals revealed longitudinal changes with a decrease in both upper and lower arch lengths and an increase on the palatal vault height. During the follow-up period, the prevalence of malocclusions remained almost the same, only significantly differing regarding the changes that occurred between groups referred to the upper intermolar width, which decreased among DM1 patients. Conclusions/implications In comparison to healthy controls, children and adolescents with DM1 have shown already at an early age a higher prevalence of both anterior open bite and posterior crossbite. These occlusal traits did not change with time apart from the upper narrow intermolar width, which further decreased with time.

Dilemma in closing the bite: a case of orthognathic surgery

2020 ◽  
Vol 13 (1) ◽  
pp. 35-40
Author(s):  
Siddharth Mehta ◽  
Abhay T Kamath ◽  
Adarsh Kudva ◽  
G Srikanth ◽  
Arun Urala
Keyword(s):  
Case Report ◽  
Adult Male ◽  
Clinical Relevance ◽  
Orthognathic Surgery ◽  
Open Bite ◽  
Anterior Region ◽  
Anterior Open Bite ◽  
Posterior Crossbite ◽  
Old Adult ◽  
History Of

This case report demonstrates treatment of an open bite case with a history of trauma to the maxillary anterior region in childhood. A 20-year-old adult male presented with a convex profile and significant anterior bite and unilateral posterior crossbite. Surgical bite correction was planned but posed a dilemma in the choice of surgery. CPD/Clinical Relevance: To demonstrate the outcome of a case of skeletal anterior open bite treated with orthognathic surgery.

Long-term stability of a Class III malocclusion with severe anterior open bite and bilateral posterior crossbite in a hyperdivergent patient

2020 ◽  
Vol 157 (3) ◽  
pp. 408-421
Author(s):  
Oscar Mario Antelo ◽  
Thiago Martins Meira ◽  
Dauro Douglas Oliveira ◽  
Matheus Melo Pithon ◽  
Orlando Motohiro Tanaka
Keyword(s):  
Open Bite ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Anterior Open Bite ◽  
Term Stability ◽  
Long Term Stability ◽  
Posterior Crossbite
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