scholarly journals Etiological aspects of anterior open bite

2007 ◽  
Vol 60 (3-4) ◽  
pp. 151-155 ◽  
Author(s):  
Ljiljana Stojanovic
Keyword(s):  
Dental Treatment ◽  
Growth Patterns ◽  
Open Bite ◽  
Permanent Teeth ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
The Face ◽  
Thumb Sucking ◽  
Skeletal Open Bite ◽  
Tongue Thrust

Introduction. Open bite is a multifactorial phenomenon and no single factor can account for open-bite. Etiology plays an important role in diagnosis. Heredity, unfavorable growth patterns, incorrect jaw postoure, are the characteristics of skeletal open bite. Digit sucking. Depending on where the thumb is placed, a number of different types of dental problems can develop. Malocclusions of the late mixed or permanent dentitions, caused by thumb sucking are not self corrected and orthodontic treatment is necessary for their correction. Lymphatic tissue. In order to produce oral respiration, the mandible is postured inferiorly with the tongue protruded and resting against the oral floor. This postural alteration induces dental and skeletal modifications similar to those caused by thumb sucking. This may cause excessive eruption of the posterior teeth, leading to an increase in the vertical dimension of the face and result in development of anterior open bite. Tongue thrust. Tongue habits cause an anterior open bite or they develop secondarily to thumb sucking. In skeletal open bite the tongue habit acts as a secondary factor which helps to maintain or exacerbate the condition. Many orthodontists have had a discouraging experience of completing dental treatment, with what appeared to be good results, only to discover that the case had relapsed because the patient had a tongue thrust swallowing pattern. Conclusion. Dentoalveolar or habitual open bite is caused by habits, which influence the growth and development of dentoalveolar processes and contribute to occlusal disharmonies. Prior to eruption of adult dentition, open bite related to oral habits is usually not a concern as when the habits stop, because the erupting dentition tends to improve spontaneously. Treatment is usually not necessary until permanent teeth erupt (~6 years old). .

scholarly journals Microscrew Anchorage in Skeletal Anterior Open-bite Treatment

2007 ◽  
Vol 77 (1) ◽  
pp. 47-56 ◽  
Author(s):  
Chunlei Xun ◽  
Xianglong Zeng ◽  
Xing Wang
Keyword(s):  
Alveolar Bone ◽  
Open Bite ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Miniscrew Implants ◽  
Mandibular Plane ◽  
Lateral Cephalograms ◽  
Patient Cooperation ◽  
Skeletal Pattern ◽  
Skeletal Open Bite

Abstract Objective: To evaluate the effectiveness of miniscrew anchorage for intrusion of the posterior dentoalveolar region to correct skeletal open bite. Materials and Methods: The study was comprised of 12 patients (aged 14.3 to 27.2 years; mean 18.7 years) with anterior open bites. All the patients presented a Class II skeletal pattern and excessive posterior growth. Self-drilling miniscrew implants were inserted into the posterior midpalatal area and the buccal alveolar bone between the lower molars. A transpalatal and a lingual arch were used to maintain the molars on each side in order to avoid overrotation during intrusion. A force of 150 g was applied to the microscrews on each side to intrude the posterior teeth. Lateral cephalograms of all 12 patients were taken preintrusion and immediately after completion of the intrusion. The cephalometric films were measured and compared. Results: The results showed that the anterior open bites in 12 patients were all corrected in a mean of 6.8 months. Overbite increased by a mean of 4.2 mm (P < .001), from −2.2 mm in preintrusion to 2.0 mm in postintrusion. The maxillary and mandibular first molars were intruded for an average of 1.8 mm (P < .001) and 1.2 mm (P < .001), respectively. The mandibular plane angle was reduced by 2.3° (P < .001), which led to a counterclockwise rotation of the mandible with a significant decrease in the anterior facial heights (mean of 1.8 mm; P < .001). Conclusion: Miniscrew anchorage has the advantages of being a simpler procedure, being minimally invasive, and requiring minimal patient cooperation.

scholarly journals Dynamic MRI Evaluation of Tongue Posture and Deglutitive Movements in a Surgically Corrected Open Bite

2006 ◽  
Vol 76 (6) ◽  
pp. 1057-1065 ◽  
Author(s):  
Seniz Karacay ◽  
Erol Akin ◽  
Kerim Ortakoglu ◽  
A. Osman Bengi
Keyword(s):  
Dynamic Mri ◽  
Class Ii ◽  
Open Bite ◽  
Class Ii Malocclusion ◽  
Anterior Open Bite ◽  
Posterior Portion ◽  
Upward Direction ◽  
Magnetic Resonance Imaging Mri ◽  
Skeletal Open Bite ◽  
Tongue Thrust

Abstract Tongue thrust usually develops in the presence of anterior open bite in order to achieve anterior valve function. In the literature, tongue thrust is described both as the result and the cause of open bite. If it is an adaptation to malocclusion, then tongue posture and deglutitive tongue movements should change after treatment. In this case report, an adult who had skeletal open bite and Class II malocclusion caused by mandibular retrusion was treated surgically. The mandible was advanced in a forward and upward direction with a sagittal split osteotomy. The open bite and Class II malocclusion were corrected and an increase in the posterior airway space (PAS) was observed. Pretreatment and posttreatment dynamic magnetic resonance imaging (MRI) revealed that tongue tip was retruded behind the incisors and contact of the tongue with the palate increased. It was also determined that the anterior and middle portions descended, whereas the posterior portion was elevated at all stages. Advancement of the mandible, correction of open bite, and an increase in PAS affected not only the tongue posture and deglutitive movements, but also the breathing pattern of the patient.

scholarly journals Dental Treatment of a Child with Pallister-Killian Syndrome

2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
Serhan Didinen ◽  
Didem Atabek ◽  
Gülay Kip ◽  
Aslı Patır Münevveroğlu ◽  
Özlem Tulunoğlu
Keyword(s):  
Dental Treatment ◽  
Genetic Disorder ◽  
Clinical Manifestations ◽  
Life Quality ◽  
Epileptic Seizures ◽  
Oral Appliance ◽  
Open Bite ◽  
Anterior Open Bite ◽  
Deficit Syndrome ◽  
Tongue Thrust

The Pallister-Killian syndrome (PKS) is an extremely rare genetic disorder with an incidence estimated around 1/25000. PKS is a multiple congenital anomaly deficit syndrome caused by mosaic tissue limited tetrasomy for chromosome 12p. The presented report is the first confirmed case with PKS in Turkey. This report focuses on the orofacial clinical manifestations of an 6-year-old boy with PKS who was referred to the Department of Paediatric Dentistry clinic, Gazi University. It has been learned that the PKS was diagnosed 1 year after birth. Due to intellectual disability, it was decided to make the dental treatments under moderate sedation. Although significant tongue thrust and anterior open bite were determined, any oral appliances could not be applied because of the 2 epilepsy seizures in the last 2 years. The aim was to treat decayed teeth and set good oral hygiene in the patient’s mouth. Still, there is a probability for epilepsy seizures. If epileptic seizures stop permanently, we can apply an oral appliance to block tongue thrust. The patient is now under control. In cases of systemic and oral findings such as PKS, conducting medical and dental approaches together will increase the life quality of patients.

scholarly journals Force magnitude as a variable in maxillary buccal segment intrusion in adult patients with skeletal open bite:

2020 ◽  
Vol 90 (4) ◽  
pp. 507-515
Author(s):  
Heba E. Akl ◽  
Amr M. Abouelezz ◽  
Fouad A. El Sharaby ◽  
Amr R. El-Beialy ◽  
Mohamed Abd El-Ghafour
Keyword(s):  
Null Hypothesis ◽  
Intervention Group ◽  
Posterior Segment ◽  
Open Bite ◽  
Adult Patients ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Force Magnitude ◽  
Comparator Group ◽  
Skeletal Open Bite

ABSTRACT Objectives To compare the effects of two different force magnitudes on maxillary posterior segment intrusion using mini-screws. The null hypothesis was that there would be no difference between the two force magnitudes. Materials and Methods Adult patients with skeletal open bite and a dental open bite ranging from 3 to 8 mm were recruited for this trial. The comparator group had 200 g of intrusive force applied for posterior segment intrusion, whereas 400 g of force was applied in the intervention group. Primary outcomes were the amount of posterior teeth intrusion and anterior open bite closure. Results Twenty-two subjects were randomized to include 11 participants in each group. One participant dropped out in each group, leaving us with 10 subjects to be analyzed per group. There was statistically significant posterior teeth intrusion of 2.42 ± 2.06 and 2.26 ± 1.87 mm for the comparator and intervention groups, respectively, with no difference between them. Statistically significant open bite closure was achieved in both groups, measuring 2.24 ± 1.18 and 3.15 ± 1.06 mm in the comparator and intervention groups, respectively, with no difference between them. Conclusions Both the 200 g and 400 g intrusive forces yielded similar outcomes in terms of posterior teeth intrusion and anterior open bite closure.

Aversive Taste Treatment of Finger and Thumb Sucking

PEDIATRICS ◽  
1986 ◽  
Vol 78 (1) ◽  
pp. 174-176
Author(s):  
PATRICK C. FRIMAN ◽  
VINCENT J. BARONE ◽  
EDWARD R. CHRISTOPHERSEN
Keyword(s):  
Early Childhood ◽  
Behavior Disorders ◽  
Self Esteem ◽  
Open Bite ◽  
Class Ii Malocclusion ◽  
Anterior Open Bite ◽  
Child Behavior Problem ◽  
Aversive Taste ◽  
Thumb Sucking ◽  
Infancy And Early Childhood

Thumb sucking is common and adaptive in infancy and early childhood. But when sucking occurs beyond 4 years of age, a common result can be an anterior, open bite that requires expensive orthodontic correction.1 Prolonged sucking may also be a factor in class II malocclusion, narrowing of the dental arches, mucosal trauma, and digital malformation.1-4 In addition to the physical sequelae of sucking, the habit, because it is not socially approved, can generate persistent negative feedback which can adversely affect a child's self-esteem.5 Thumb sucking is a frequently reported child behavior problem that, in some children, can be associated with broader behavior disorders that require treatment.

The functional treatment of anterior-open bite: three case reports

2001 ◽  
Vol 25 (4) ◽  
pp. 275-286
Author(s):  
Banu Dinçer ◽  
Serpil Hazar
Keyword(s):  
Case Reports ◽  
Post Treatment ◽  
Open Bite ◽  
Functional Treatment ◽  
Posterior Region ◽  
Anterior Open Bite ◽  
Facial Height ◽  
Skeletal Open Bite ◽  
Vertical Development

Functional treatment of three skeletal open-bite patients with Bionator, Frankel IV and Posterior biteblock appliances is presented. Pretreatment and post treatment records were evaluated. Correction of malocclusion by changing direction of the mandibular development, adaptive bony development of the condyle, vertical development in posterior region, an increase in ramus length, a decrease in the lower facial height were observed in this report. The results of functional treatment of three appliances had different effect mechanisms.

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

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
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.

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

2004 ◽  
Vol 41 (2) ◽  
pp. 208-213 ◽  
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.

scholarly journals Root surface areas of maxillary permanent teeth in anterior normal overbite and anterior open bite assessed using cone-beam computed tomography

2017 ◽  
Vol 47 (4) ◽  
pp. 241 ◽  
Author(s):  
Piyadanai Suteerapongpun ◽  
Supassara Sirabanchongkran ◽  
Tanapan Wattanachai ◽  
Patiyut Sriwilas ◽  
Dhirawat Jotikasthira
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Surface ◽  
Open Bite ◽  
Cone Beam ◽  
Permanent Teeth ◽  
Anterior Open Bite ◽  
Surface Areas

scholarly journals Treatment and Posttreatment Effects of Quad-Helix/Crib Therapy of Dentoskeletal Open Bite

2007 ◽  
Vol 77 (4) ◽  
pp. 640-645 ◽  
Author(s):  
Paola Cozza ◽  
Manuela Mucedero ◽  
Tiziano Baccetti ◽  
Lorenzo Franchi
Keyword(s):  
Nonparametric Test ◽  
Treated Group ◽  
Open Bite ◽  
Control Group ◽  
Anterior Open Bite ◽  
Mandibular Plane ◽  
Lateral Cephalograms ◽  
Thumb Sucking ◽  
Clinically Significant ◽  
Quad Helix

Abstract Objective: To investigate the effects of the quad-helix/crib (Q-H/C) appliance in subjects with thumb-sucking habits and dentoskeletal open bite at 2 years after the end of active treatment. Materials and Methods: The records of 21 subjects treated with the Q-H/C appliance were compared with a control group of 21 untreated subjects with similar vertical relationships. Lateral cephalograms were obtained before treatment (T1; mean age 8.4 ± 1.4 years) and at about 2 years after treatment (T2; mean age 11.7 ± 1.9 years) and analyzed. Mean treatment duration was 1.5 years ± 7 months. The T2–T1 changes in the two groups were compared with a nonparametric test for independent samples. Results: The mean increase in overbite during Q-H/C therapy (4.1 mm) represented an overcorrection of the amount of anterior open bite at T2. Both the maxillary and mandibular incisors showed significantly greater extrusion in the Q-H/C group than in the control group. The treated group showed a greater downward rotation (1.8°) of the palatal plane than did the control group. This change was associated with a clinically significant reduction in the palatal plane/mandibular plane angle (−2.5°) in the Q-H/C group. The upper lip showed significant retraction relative to the E-plane in the treated group (3.6 mm) compared with the controls. Conclusions: The Q-H/C appliance was effective in correcting dental open bite in 85% of the growing subjects with thumb-sucking habits and dentoskeletal open bites. Correction of anterior open bite was associated with a clinically significant improvement in maxillomandibular vertical skeletal relationships.

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