Dimensional changes of dental arches produced by fixed and removable palatal cribs: A prospective, randomized, controlled study

ABSTRACT Objective: To evaluate the dimensional changes of dental arches on digital models of open bite treatment with fixed and removable palatal cribs. Materials and Methods: The sample comprised 41 patients of both sexes who were white, aged 7–10 years, and who had mixed dentition, Angle Class I molar relationship, and a negative overbite of at least 1 mm. The sample was randomly divided into two groups: G1, fixed palatal crib; and G2, removable palatal crib. Cast models, obtained initially (T1) and after 1 year of treatment (T2), were scanned by a three-dimensional (3D) scanner, 3Shape R700, producing a 3D image. Measurements were performed by a calibrated examiner using OrthoAnalyzer™ 3D software. Results: At T2–T1, differences were observed between the groups regarding vertical dentoalveolar development and overjet. There was more mandibular incisor extrusion for G1 (−1.66 mm) than for G2 (−0.54 mm). An overjet increase was observed in G1 (0.56 mm), in contrast to a reduction in G2 (−0.40 mm). There was a similar overbite increase for both groups (3.51 mm for fixed palatal crib and 3.88 mm for removable palatal crib). Conclusions: Both the treatment protocols are similarly effective for anterior open bite correction, providing an overbite increase with dentoalveolar arch changes, especially in the anterior region.

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Noninvasive and Multidisciplinary Approach to the Functional and Esthetic Rehabilitation of Amelogenesis Imperfecta: A Pediatric Case Report

Case Reports in Dentistry ◽

10.1155/2014/127175 ◽

2014 ◽

Vol 2014 ◽

pp. 1-5 ◽

Cited By ~ 5

Author(s):

Juliana Feltrin de Souza ◽

Camila Maria Bullio Fragelli ◽

Marco Aurélio Benini Paschoal ◽

Edson Alves Campos ◽

Leonardo Fernandes Cunha ◽

...

Keyword(s):

Case Report ◽

Composite Resin ◽

Preventive Treatment ◽

Open Bite ◽

Amelogenesis Imperfecta ◽

Mixed Dentition ◽

Anterior Open Bite ◽

Posterior Teeth ◽

Anterior Teeth

Case Report. An 8-year-old girl with amelogenesis imperfecta (AI) reported unsatisfactory aesthetics, difficulty in mastication, and dental hypersensitivity. The intraoral examination observed mixed dentition, malocclusion in anteroposterior relationships, anterior open bite, and dental asymmetry. A hypoplastic form of AI was diagnosed in the permanent dentition. A multidisciplinary planning was performed and divided into preventive, orthopedic, and rehabilitation stages. Initially, preventive treatment was implemented, with fluoride varnish applications, in order to protect the fragile enamel and reduce the dental sensitivity. In the second stage, the patient received an interceptive orthopedic treatment to improve cross-relationship of the arches during six months. Finally, the rehabilitation treatment was executed to establish the vertical dimension. In the posterior teeth, indirect composite resin crowns were performed with minimally invasive dental preparation. Direct composite resin restorations were used to improve the appearance of anterior teeth.Follow-Up. The follow-up was carried out after 3, 6, 12, and 18 months. After 18 months of follow-up, The restoration of integrity, oral hygiene, and patient satisfaction were observed .Conclusion. Successful reduction of the dental hypersensitivity and improvement of the aesthetic and functional aspects as well as quality of life were observed.

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Effects of palatal crib and bonded spurs in early treatment of anterior open bite: A prospective randomized clinical study

The Angle Orthodontist ◽

10.2319/031815-170.1 ◽

2015 ◽

Vol 86 (5) ◽

pp. 734-739 ◽

Cited By ~ 10

Author(s):

Juliana S. Leite ◽

Luciano B. Matiussi ◽

Anne C. Salem ◽

Maria G. A. Provenzano ◽

Adilson L. Ramos

Keyword(s):

Early Treatment ◽

Primary Outcome ◽

Open Bite ◽

Mixed Dentition ◽

Secondary Outcome ◽

Cephalometric Analysis ◽

Anterior Open Bite ◽

Randomized Clinical Study ◽

Nasolabial Angle ◽

Cephalometric Measurements

ABSTRACT Objective: To evaluate the overbite correction of fixed palatal crib (FPC) and bonded lingual spur (BLS) in the early treatment of anterior open bite (AOB) in mixed dentition (primary outcome) as well as its influence on dental and skeletal cephalometric measurements (secondary outcome). Materials and Methods: The selected patients had AOB and a mean age of 8.23 years. They were divided into the following three groups by casting lots: control (n = 13), palatal crib (n = 13), and spur (n = 13). Data from the lateral teleradiography was obtained at the beginning, at 6 months, and after 1 year. The cephalometric analysis was performed by Cef-X program, recording the values of SNA, SNB, ANB, SnG oGn, 1.PP, IMPA, nasolabial angle, overbite, and overjet. Intergroup and intragroup comparisons were obtained via one-way analysis of variance. Results: The degree of AOB was similar at baseline (P > .05). At 6 months and then after 1 year all groups showed improvement in the overbite. However, only the crib and spur groups showed positive overbite. No cephalometric measurements changed significantly over the period analyzed. Conclusions: We conclude that the FPC and BLS are simple and effective for the treatment of anterior open bite, with the advantage given to the FPC.

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Craniofacial Morphology in an Unusual Case with Nasal Aplasia Studied by Roentgencephalometry and Three-Dimensional CT Scanning

The Cleft Palate-Craniofacial Journal ◽

10.1597/02-112 ◽

2004 ◽

Vol 41 (2) ◽

pp. 208-213 ◽

Cited By ~ 4

Author(s):

Noriyuki Kitai ◽

Yoshitaka Iguchi ◽

Mariko Takashima ◽

Shumei Murakami ◽

Sven Kreiborg ◽

...

Keyword(s):

Unusual Case ◽

Three Dimensional ◽

Ct Scanning ◽

Septal Cartilage ◽

Open Bite ◽

Craniofacial Morphology ◽

Permanent Teeth ◽

Class Iii ◽

Anterior Open Bite ◽

Mandibular Plane

Objective To examine the three-dimensional morphology of internal structures of the craniofacial region and present the orthodontic problems in an unusual case with nasal aplasia. Patient The patient was an 11.5-year-old boy with aplasia of the nose and nasal cavity with extremely constricted nasopharyngeal airway. He did not have mental or somatic retardation. The patient had dacryostenosis. The morphology of the craniofacial structures was characterized by absence of septal structures, including cribriform plate, perpendicular plate of ethmoid bone, vomer, and septal cartilage; bony hypotelorism; midface hypoplasia; short and retrognathic maxilla with Class III jaw relationship; average mandibular plane angle; high arched palate; severe anterior open bite with bilateral posterior crossbites; and dental anomalies (agenesis of four maxillary permanent teeth, microdontia, taurodontism, and short roots). Thus, the patient had characteristic dentofacial phenotype, which might be caused by a combination of the primary anomaly and the functional disturbances secondary to the nasal obstruction.

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Assessment of oral health literacy of principal caregivers and its association with dental caries in Mexican disabled pediatric patients

Contemporary Pediatric Dentistry ◽

10.51463/cpd.2021.89 ◽

2021 ◽

Vol 2 (3) ◽

pp. 151-157

Author(s):

Julio Carlos Garnica-Palazuelos ◽

Mercedes Bermúdez ◽

Juan Luis Cota-Quintero ◽

Gerardo Bueno-Acuña ◽

Sandra Santana-Delgado ◽

...

Keyword(s):

Clinical Case ◽

Multidisciplinary Approach ◽

Speech Therapy ◽

Pediatric Patients ◽

Open Bite ◽

Mixed Dentition ◽

Oral Health Literacy ◽

Anterior Open Bite ◽

Tongue Thrust ◽

Maxillary Deficiency

Open bite can be defined as an absence of occlusion, most frequently located in the anterior region of dental arches and its etiology is multifactorial. We present a clinical case of an 8 years and 10 months child presenting an anterior open bite (AOB) with transverse maxillary deficiency caused by tongue thrust during mixed dentition. The malocclusion was corrected by means of a McNamara expander with a palatal crib jointly with the association of speech therapy for tongue repositioning, and otolaryngology to treat adenoid hypertrophy due to its correlation with AOB. The multidisciplinary approach was effective in correcting the malocclusion with stable results after 2 years post-treatment.

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Prevalence of malocclusions in schoolchildren with mixed dentition in the city of Piracicaba, Brazil

Revista de Odontologia da Universidade Cidade de São Paulo ◽

10.26843/ro_unicid.v24i2.361 ◽

2017 ◽

Vol 24 (2) ◽

pp. 96 ◽

Cited By ~ 1

Author(s):

Fábio Lourenço Romano ◽

Maria Beatriz Borges de Araújo Magnani ◽

José Tarcísio Lima Ferreira ◽

Denise De Souza Matos ◽

Rodrigo Alexandre Valério ◽

...

Keyword(s):

Public Schools ◽

Class Ii ◽

Open Bite ◽

Mixed Dentition ◽

Class I ◽

Class Iii ◽

Anterior Open Bite ◽

Socioeconomic Condition ◽

The Public ◽

The City

Introduction: The aim of this study is to evaluate the prevalence of Class I, Class II and Class III Angle’s malocclusions and the associated problems open bite, cross-bite, anterior and posterior crowding, in schoolchildren of the public schools of Piracicaba’s city – São Paulo’s state. Methods: Four hundred and sixteen children were examined, 7 to 12 years of age, boys and girls, independent of the ethnic group and the socioeconomic condition. The children were examined in their own school by a professional graduated in Dentistry, are properly gagged. In the clinical exam wood spatulas were used to move away the check to facilitate the view of patient’s occlusal characteristics. Results: The examined scholars (86,6%) showed occlusal problems: 55,7% with Class I malocclusion, 19,7% with Class II-1ª division, 5,2% with Class II-2ª division and 6,0% with Class III. In relation to the associated problems, 16,5% showed anterior open bite, 3,3% anterior cross-bite , 15,8% posterior cross-bite, 3,6% anterior and posterior cross-bite and 52,6% anterior and inferior crowding.

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Association between anterior open bite and pacifier sucking habit in schoolchildren in a city of southern Brazil

Dental Press Journal of Orthodontics ◽

10.1590/s2176-94512012000600019 ◽

2012 ◽

Vol 17 (6) ◽

pp. 89-96 ◽

Cited By ~ 2

Author(s):

Claudiane Tibolla ◽

Lilian Rigo ◽

Lincoln Issamu Nojima ◽

Anamaria Estacia ◽

Eduardo Gianoni Frizzo ◽

...

Keyword(s):

School Children ◽

Epidemiological Survey ◽

Primary Dentition ◽

Open Bite ◽

Mixed Dentition ◽

Southern Brazil ◽

Anterior Open Bite ◽

Gender Distribution ◽

School Based ◽

The City

OBJECTIVE: The objective of this study was to verify from a school-based epidemiological survey, the prevalence of anterior open bite, analyzing the influence of pacifier habit in the school. METHODS: The first step was a questionnaire for the parents, and later clinical examinations in 237 school children, 3-14 years old, in the city of Santo Expedito do Sul/RS, Brazil. RESULTS: The population gender distribution was 50.3% boys and 49.4% girls with a mean age of 8.63 years, and 16% had primary dentition, 50.2% mixed dentition and 33.8 % permanent dentition. There was a 22.8% prevalence of anterior open bite, obtaining a significant association between anterior open bite and the pacifier sucking habit on the three dentitions. CONCLUSION: The duration and frequency of the habit were strongly associated with anterior open bite malocclusion in the deciduous and mixed dentitions.

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Prevalence of Malocclusions and Associated Factors inBrazilian Children and Adolescents with CerebralPalsy: A Multi-Institutional Study

International Journal of Dentistry ◽

10.1155/2020/8856754 ◽

2020 ◽

Vol 2020 ◽

pp. 1-10

Author(s):

Andreia Medeiros Rodrigues Cardoso ◽

Clara Regina Duarte Silva ◽

Lays Nóbrega Gomes ◽

Mariana Marinho Davino de Medeiros ◽

Wilton Wilney Nascimento Padilha ◽

...

Keyword(s):

Children And Adolescents ◽

Open Bite ◽

Mixed Dentition ◽

Age Group ◽

Anterior Open Bite ◽

Poisson Regression Analysis ◽

Factors Associated ◽

Systemic Factors ◽

Oral Examinations ◽

Diet Consistency

Background. To assess the prevalence and factors associated with malocclusions in children and adolescents with cerebral palsy (CP). Methods. The study included 134 subjects with CP aged 2–18 years enrolled in six rehabilitation institutions and their caregivers, which provided demographic, systemic, and behavioral data. A calibrated researcher held oral examinations with record of the following malocclusion indexes, DAI and DMFT. Poisson regression analysis was used (α < 0.05). Results. About 85.8% (n = 115) of patients had malocclusion. In deciduous and mixed dentition (n = 99), increased overjet (75.8%), open bite (51.5%), posterior cross bite (19.2%), and anterior cross bite (3.0%) were identified. Increased overjet was associated with the age group of 2–5 years and mild communication impairment. Anterior open bite was more common in children who underwent tongue interposition, lip interposition, and pacifier sucking. Communication skills, mouth breathing, and tongue interposition were associated with posterior cross bite. Severe malocclusions (DAI > 30) were observed in 88.6% of patients with permanent dentition (n = 35) and were associated with liquid diet consistency and finger sucking. Conclusion. The prevalence of malocclusion in individuals with CP was high and associated with demographic, behavioral, and systemic factors.

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Three-dimensional ultrasound evaluation of tongue posture and its impact on articulation disorders in preschool children with anterior open bite

Radiology and Oncology ◽

10.2478/raon-2018-0032 ◽

2018 ◽

Vol 52 (3) ◽

pp. 250-256

Author(s):

Sanda Lah Kravanja ◽

Irena Hocevar-Boltezar ◽

Maja Marolt Music ◽

Ana Jarc ◽

Ivan Verdenik ◽

...

Keyword(s):

Preschool Children ◽

Clinical Assessment ◽

Three Dimensional ◽

Open Bite ◽

Control Group ◽

Odds Ratios ◽

Functional Diagnostics ◽

Anterior Open Bite ◽

Significant Difference ◽

Articulation Disorders

Abstract Background Tongue posture plays an important role in the etiology of anterior open bite (AOB) and articulation disorders, and is crucial for AOB treatment planning and posttreatment stability. Clinical assessment of tongue posture in children is unreliable due to anatomical limitations. The aim of the study was to present functional diagnostics using three-dimensional ultrasound (3DUS) assessment of resting tongue posture in comparison to clinical assessment, and the associations between the improper tongue posture, otorhinolaryngological characteristics, and articulation disorders in preschool children with AOB. Patients and methods A cross-sectional study included 446 children, aged 3–7 years, 236 boys and 210 girls, examined by an orthodontist to detect the prevalence of AOB. The AOB was present in 32 children. The control group consisted of 43 children randomly selected from the participants with normocclusion. An orthodontist, an ear, nose and throat (ENT) specialist and a speech therapist assessed orofacial and ENT conditions, oral habits, and articulation disorders in the AOB group and control group. Tongue posture was also assessed by an experienced radiologist, using 3DUS. The 3DUS assessment of tongue posture was compared to the clinical assessment of orthodontist and ENT specialist. Results The prevalence of AOB was 7.2%. The AOB group and the control group significantly differed regarding improper tongue posture (p < 0.001), and articulation disorders (p < 0.001). In children without articulation disorders from both groups, the improper tongue posture occured less frequently than in children with articulation disorders (p < 0.001). After age adjustment, a statistical regression model showed that the children with the improper tongue posture had higher odds ratios for the presence of AOB (OR 14.63; p < 0.001) than the others. When articulation disorders were included in the model, these odds ratios for the AOB became insignificant (p = 0.177). There was a strong association between the improper tongue posture and articulation disorders (p = 0.002). The 3DUS detected the highest number of children with improper resting tongue posture, though there was no significant difference between the 3DUS and clinical assessments done by orthodontist and ENT specialist. Conclusions The 3DUS has proved to be an objective, non-invasive, radiation free method for the assessment of tongue posture and could become an important tool in functional diagnostics and early rehabilitation in preschool children with speech irregularities and irregular tongue posture and malocclusion in order to enable optimal conditions for articulation development.

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Wear Behavior of the Human Enamel Antagonist to Different Glazed Zirconia

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2020.17657 ◽

2020 ◽

Vol 20 (9) ◽

pp. 5676-5679

Author(s):

Su-Kyoung Ryu ◽

Gye-Jeong Oh ◽

Jin-Ho Kang ◽

Jae-Gon Jang ◽

Kumaresan Sakthiabirami ◽

...

Keyword(s):

Wear Behavior ◽

Three Dimensional ◽

Wear Loss ◽

Volume Loss ◽

3D Scanner ◽

3D Data ◽

Human Enamel ◽

Lower Volume ◽

Before And After ◽

3D Software

In this study, the wear behavior of glazed zirconia was investigated to the antagonist with human enamel after simulated mastication. Twenty Y-TZP specimens were divided into 4 groups: untreated zirconia (Z), glazed zirconia with IPS e.max Ceram (GZE), glazed zirconia with VITA AKZENT® Plus (GZV), and glazed zirconia with glass (GZG). Glazing glass was mainly composed of SiO2, B2O3, Al2O3, Na2O and K2O (nearly 91 wt%). The surface roughness of the specimens was evaluated using roughness profiler. The maxillary premolar teeth were selected as the antagonist. The wear of human enamel against human enamel was used as a control. Five-disc specimens per group were subjected to chewing stimulation CS-4 (SD Mechatronic GmbH, Germany) for 240,000 cycles against human enamel. The wear loss of antagonistic teeth was calculated using a three-dimensional profiling system and the volume loss of the tooth was scanned using a 3D scanner. 3D data obtained before and after testing were overlapped using 3D software (Dentacian Software, EZplant, Korea). The wear loss of glazed zirconia GZE, GZV and GZG groups showed significantly lower than that of human enamel. Whereas, the zirconia (Z) group exhibits significantly lower volume loss than glazed zirconia and enamel. These results show that the wear of the glazing glass is comparable to other commercial glazing materials. Glazing materials are both more susceptible to wear the antagonist relative to zirconia.

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Orthopedic approach in the treatment of a skeletal class II division 1 malocclusion with an anterior open bite

Journal of Clinical Pediatric Dentistry ◽

10.17796/jcpd.29.3.u4j7243557374248 ◽

2005 ◽

Vol 29 (3) ◽

pp. 205-210

Author(s):

N. Al-Sulaiti ◽

G. White

Keyword(s):

Class Ii ◽

Open Bite ◽

Mixed Dentition ◽

Class Ii Malocclusion ◽

Facial Bones ◽

Anterior Open Bite ◽

Correct Position ◽

Skeletal Class ◽

Skeletal Class Ii ◽

Division 1

The patient presented with it skeletal class II malocclusion characterized by an anterior open bite and maxillary midline deviation. This mixed dentition case was treated orthopedically with MRI appliance to rotate and impact the maxilla. A Bionator was used advance the mandible. The case was completed using Occlus-O-Guide. The result showed that the facial bones and teeth appear in the correct position.

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