scholarly journals Skeletal and Dentoalveolar Cephalometric Features of Anterior Open Bite among Yemeni Adults

Scientifica ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Ammar Abdulkareem Daer ◽  
Amal Hussein Abuaffan

Objective.The aim of this study is to determine the cephalometric features for a sample of Yemeni adults with anterior open bite.Material and Methods. Lateral cephalometric radiographs were taken for 65 Yemeni university students (46 males and 19 females), 18–25 years old, with clinical anterior open bite (vertical overbite ≤ 0 mm) and no previous orthodontic treatment. The radiographs were manually traced; twelve angular, five linear measurements, and facial index were assessed, analyzed statistically, and compared to 194 Yemeni norms (89 males and 105 females) as well as cephalometric features of open bite subjects in previous studies.Results.Statistically significant differences were observed in skeletal and dental cephalometric values of Yemeni patients with anterior open bite when compared to Yemeni norms; mainly in the anteroposterior relation, the open bite individuals had higher significant value in SNA, SNB, and SNPg angles. In addition, a higher statistical significant difference was recorded in all variables of vertical relation when compared with norms. In contrast, NL-NSL angle revealed higher value among normal individuals. Dental variables among open bite individuals showed a greater degree of dental proclination, higher statistically significant value inI_-NA°,I_-NA mm and I-NB mm, and a lower significant value in U1-L1 in open bite group.Conclusion.Open bite Yemeni individual’s skeletal and dentoalveolar variables significantly differ from Yemeni norms in the extent of the anteroposterior, vertical developmental pattern and dental relations.

2006 ◽  
Vol 17 (1) ◽  
pp. 68-70 ◽  
Author(s):  
Adriana Sasso Stuani ◽  
Andréa Sasso Stuani ◽  
Maria Bernadete Sasso Stuani ◽  
Maria da Conceição Pereira Saraiva ◽  
Mírian Aiko Nakane Matsumoto

The purpose of this study was to compare the dental pattern of patients with anterior open bite malocclusion to that of individuals with normal overbite by utilization of lateral cephalograms, panoramic radiographs and study casts. The findings showed that there was no significant difference in the inclination of the occlusal plane (SN.PlO) and position of the maxillary and mandibular incisors (1-NA, 1-NB) between both groups of individuals; but the angles of inclination of the maxillary and mandibular incisors (1.1, 1.NA and 1.NB) differed statistically between patients with anterior open bite of the individuals that presented normal overbite, which suggests that the anterior open bite may be of dental origin.


2022 ◽  
Vol 9 ◽  
Author(s):  
Richard Togbedji Dahoue ◽  
Asmae Benkaddour ◽  
Fatima Zaoui ◽  
Afaf Houb-Dine ◽  
Loubna Bahije

The dental biprotrusion characteristic of certain ethnic groups raises the question of treatment or of abstaining. In many situations this is accompanied by open bite in relation to the lingual volume or lingual support during pronunciation, the therapeutic solution must be considered and individualized. This article describes the orthodontic treatment of an anterior open bite of functional origin in a 23-year-old adult patient embarrassed by the cosmetic defect.


2008 ◽  
Vol 55 (3) ◽  
pp. 154-162 ◽  
Author(s):  
Leite Cavalcanti ◽  
Medeiros Bezerra ◽  
Cristiano Moura ◽  
Medeiros Bezerra ◽  
Flávia Granville-Gracia

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.


2021 ◽  
Author(s):  
Mitsuhiro Hoshijima ◽  
Naoki Oka ◽  
Tatsushi Matsumura ◽  
Seiji Iida ◽  
Hiroshi Kamioka

Abstract BackgroundAppropriate operations in severe anterior open bite (AOB) cases are extremely complicated to perform because of the multiple surgical procedures involved, difficulty of predicting posttreatment aesthetics and high relapse rate.Case reportWe herein report a 16-year-old girl with skeletal Class II, severe AOB malocclusion and crowding with short roots and aesthetic and functional problems. Four-piece segmental LeFort I osteotomy combined with a posterior horseshoe-like osteotomy was performed for maxillary intrusion, and sagittal split ramus osteotomy (SSRO) and genioplasty were performed for mandibular advancement. The malocclusion and skeletal deformity were significantly improved by the surgical orthodontic treatment. Functional and aesthetic occlusion with an improved facial profile was established, and no further root shortening was observed. Acceptable occlusion and dentition were maintained after a two-year retention period.ConclusionThis strategy of surgical orthodontic treatment with a complicated operative procedure might be effective for managing severe AOB malocclusion.


2014 ◽  
Vol 21 (2) ◽  
pp. 178
Author(s):  
Vega Mandala ◽  
Wayan Ardhana ◽  
Christnawati Christnawati

Gigitan terbuka merupakan maloklusi yang bercirikan tidak terdapatnya tutup menutup gigi rahang atas dan bawah, dapat terjadi pada regio anterior maupun posterior dan dapat melibatkan dental maupun skeletal. Maloklusi ini memerlukan ketelitian dalam penentuan diagnosis dan perawatan untuk mendapatkan hasil perawatan yang baik dan kestabilan jangka panjang. Tujuan penulisan studi kasus ini adalah untuk menginformasikan manajemen pasien dengan gigitan terbuka tipe skeletal. Pasien pria berumur 19 tahun datang ke Klinik Ortodonsia FKG UGM dengan keluhan utama gigi depan yang tidak rata dan tidak dapat digunakan untuk menggigit. Pemeriksaan klinis menunjukkan pasien memiliki kebiasaan menelan dengan menjulurkan lidah. Pemeriksaan model studi menunjukkan maloklusi Angle kelas I dengan gigitan terbuka anterior dari regio premolar kedua kanan ke kiri sebesar 10,7 mm disertai malposisi gigi individual dan pergeseran garis tengah rahang bawah ke kiri. Pemeriksaan sefalometri menunjukkan relasi skeletal kelas II dengan retrusif bimaksila, rotasi mandibula searah jarum jam dan gigitan terbuka skeletal. Pasien menolak tindakan bedah ortognatik sehingga dilakukan perawatan ortodontik kamuflase. Perawatan diawali dengan latihan miofungsional untuk melatih cara penelanan yang benar dilanjutkan dengan perawatan ortodontik teknik straightwire dengan pencabutan empat gigi molar pertama. Penutupan gigitan terbuka menggunakan elastic box anterior. Hasil evaluasi menunjukkanpengurangan besar gigitan terbuka dari 10,7 mm menjadi 1,25 mm. Kesimpulannya elastic box anterior dapat digunakan untuk mengoreksi gigitan terbuka yang etiologinya melibatkan intrusi gigi anterior.  Skeletal Anteroposterior Open Bite Treatment with Straight Wire Technique. Open bite is a malocclusion with characteristic no overlapping between maxillar and mandibular teeth. This malocclusion may occur in anterior or posterior region and involved dental or skeletal. This malocclusion needed precise diagnosis and treatment to get a good treatment result and long term stability. The aim of this case report was to inform management of patient with skeletal open bite. A 19 years old male came to orthodontic clinic Faculty of Dentistry Gadjah Mada University with the chief complaint anterior crowding, and anterior teeth cannot be used to bite. Clinical finding showed patient had tongue thrusting habit. Study model analysis showed class I Angle malocclusion with 10.7 mm anterior open bite from right second premolar to left second premolar, with individual teeth malposition and mandibular midline shifting to the left. Cephalometric finding showed class II skeletal relationship with bimaxillar retrusive, clockwise mandibular rotation and skeletal open bite. This patient refused orthognatic surgery, so he received camouflage orthodontic treatment. This treatment was started with monofunctional exercise to correct the swallowing action then continued with straight wire orthodontic treatment with four first molar extractions. Anterior box elastic was used to close the bite. Evaluation result showed open bite was decreased from 10.7 mm to 1.25 mm. The conclusion was anterior box elastic could be used in open bite correction that involved anterior teeth intrusion as an etiology.


Author(s):  
SN Rita ◽  
SMA Sadat ◽  
MZ Hossain

Reported case of a 19 years old male, with Class III malocclusion, bilateral cross bite associated with anterior open bite, which was treated by fixed orthodontic treatment. After treatment there was a class I Molar and incisor relation as well as the open bite was corrected with accepted aesthetic and functional satisfaction of the patient. DOI: http://dx.doi.org/10.3329/bjodfo.v1i1.15974 Ban J Orthod & Dentofac Orthop, October 2010; Vol-1, No.1, 22-23


2018 ◽  
Vol 52 (3) ◽  
pp. 250-256
Author(s):  
Sanda Lah Kravanja ◽  
Irena Hocevar-Boltezar ◽  
Maja Marolt Music ◽  
Ana Jarc ◽  
Ivan Verdenik ◽  
...  

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.


This chapter discusses the growth of the face, development of the dentition, and prevention and correction of occlusal anomalies, providing a concise overview of the fundamentals of orthodontics. Definitions relevant to orthodontics are outlined as well as a structured approach to orthodontic assessment. The Index of Orthodontic Treatment Need is explained, and its implications highlighted. The chapter also simplifies cephalometrics before detailing the management of increased overbite, anterior open bite, increased overjet, and various other dental and skeletal malocclusions. A further area included in this chapter is orthognathic surgery. The section includes diagnosis and treatment planning in these cases, surgery, and distraction osteogenesis.


2008 ◽  
Vol 78 (2) ◽  
pp. 221-227 ◽  
Author(s):  
Rubén López-Pérez ◽  
S. Aida Borges-Yáñez ◽  
Patricia López-Morales

Abstract Objective: To estimate the prevalence and to determine if there is an association between anterior open bite and the presence of speech disorders in a group of Mexican children with Down syndrome (DS). Materials and Methods: The subjects were a group of Mexican children with Down syndrome (DG) and a control group (CG) of Mexican pediatric patients without disabilities matched by age. The children in both groups came from families having children with anterior open bite and children without it. A parental questionnaire, dental study casts, and a speech test were used to measure the studied variables. Data were analyzed using the chi-square test (χ2 test), and one-way analyses of variance (ANOVA), followed by the Tukey post hoc test. Results: Prevalence of anterior open bite was 31.6% in the DG and 22.8% in the CG. The total speech errors by omissions, substitutions, distortions, and additions indicated that there were significant differences between both groups (F = 31.68, P &lt; .001). In general, no significant difference in speech disorders was observed between the DG and the CG regardless of the presence of anterior open bite. Conclusions: No association existed between speech disorders and anterior open bite in the samples studied.


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