scholarly journals The Relation among Teeth and Maxillary Dental Arch Dimensions with Anterior Teeth Angulation and Inclination

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Sara M. Al-Mashhadany ◽  
Jinan Eliewy Saloom ◽  
Mohammed Nahidh

Objectives. This study aimed at finding out whether anterior teeth angulation and inclination have a relationship with the maxillary teeth and dental arch dimensions. Methods. Fifty study models with normal occlusion were selected from the archive of the Department of Orthodontics at Baghdad Dental Faculty. Maxillary dental arch width and length at different points were determined in addition to measuring anterior teeth angulation, inclination, crown thickness, overjet, overbite, and Bolton’s ratios. The unpaired t-test and Pearson’s correlation coefficient test were used for data analysis. Results. No statistical gender differences were reported in all measurements except the dental arch widths and length where males had significantly higher mean values. Only the maxillary incisor’s inclination showed a direct weak significant correlation with the total arch length. Conclusions. The inclination of upper incisors had a minimal effect on increasing dental arch length.

e-GIGI ◽  
2015 ◽  
Vol 3 (2) ◽  
Author(s):  
Dwi R. A. Alpiah ◽  
P. S. Anindita ◽  
Juliatri .

Abstract: Mandibular dental arch size and form are required to establish proper diagnosis and treatment plans in order to achieve maximum stability of treatment outcomes. This study aimed to determine the means of mandimular dental arch size and form in Minahasa ethnic. This study used 25 models of mandibular from Minahasan students at Dentistry Sam Ratulangi University selected by inclusion and exclusion criterion. The models were measured in sagittal (dental arch length) and transversal (dental arch width) direction based on Raberin’s method. The result of the dental arch length means of mandibular arch of Minahasan students in sagittal direction L31, L61, and L71 were 5.12, 23.47, and 38.78 mm consecutively, while the dental arch width in transversal direction L33, L66 and L77 were 26.02, 46.86, and 55.90 mm. The distribution of mandibular dental arch form were mid 36%, narrow 24%, wide 20%, flat 12%, and pointed 8%.Keywords: dental arch length and width, dental arch form, mandibular, Minahasan ethnicAbstrak: Ukuran dan bentuk lengkung gigi rahang bawah sangat diperlukan dalam menentukan diagnosis dan rencana perawatan yang tepat. Hal ini bertujuan untuk mendapatkan stabilitas hasil perawatan yang maksimal. Tujuan penelitian ini adalah untuk mendapatkan rerata ukuran dan bentuk lengkung gigi rahang bawah pada suku Minahasa.Penelitian ini menggunakan 25 model studi rahang bawah yang diperoleh dari mahasiswa suku Minahasa di PSPDG FK Unsrat yang sesuai dengan kriteria inklusi dan eksklusi yang telah ditentukan. Model studi yang diperoleh diukur dalam arah sagital (panjang) dan transversal (lebar) berdasarkan metode Raberin. Setelah dilakukan pengukuran, diperoleh rerata panjang lengkung gigi rahang bawah mahasiswa suku Minahasa dalam arah sagital yaitu L31, L61 dan L71 berturut-turut 5,12; 23,47; dan 38,786 mm, sedangkan rerata lebar lengkung gigi dalam arah transversal yaitu L33, L66 dan L77 sebagai berikut 26,02; 46,86; dan 55,90 mm. Distribusi bentuk lengkung gigi rahang bawah pada mahasiswa suku Minahasa di PSPDG FK Unsrat ialah mid 36%, narrow 24%, wide 20%, flat 12%, dan pointed 8%.Kata kunci: panjang dan lebar lengkung gigi, bentuk lengkung gigi, rahang bawah, suku Minahasa


2011 ◽  
Vol 34 (4) ◽  
pp. 418-426 ◽  
Author(s):  
K. Heikinheimo ◽  
M. Nystrom ◽  
T. Heikinheimo ◽  
P. Pirttiniemi ◽  
S. Pirinen

2018 ◽  
Vol 88 (6) ◽  
pp. 726-732
Author(s):  
Julia Naoumova ◽  
Gabriel Edgardo Alfaro ◽  
Sheldon Peck

ABSTRACT Objectives: To assess palatal vault height, tooth size, and dental arch dimensions in patients with unilateral and bilateral palatally displaced canines compared with a control group. Materials and Methods: A sample of 66 patients (mean age: 11.5 ± 1.0 years) with 22 unilateral palatally displaced canines (UPDCs), 22 bilateral palatally displaced canines (BPDCs), and 22 controls (C) were consecutively recruited. All three groups had dental casts that were scanned digitally using the OrthoX three-dimensional model scanner. Tooth size, palatal vault height, dental arch width, dental arch depth, dental arch length, and dental arch space were measured by the same examiner using the GOM software. Remeasurements were made in 10 randomly identified patients. Results: The palatal vault height was significantly lower in the BPDC group compared with controls. A significantly smaller mesial-distal crown width and, in general, more spacing in the maxilla were found in the UPDC and BPDC groups. No differences in arch length or arch width at the molar region were seen between the groups, while the arch length at the canine region was smaller in the UPDC and BPDC groups. However, this was observed in BPDC patients with both deciduous canines present and in most UPDC patients where the deciduous canine was present, compared with the control group, who had more permanent canines present. Conclusions: Patients with PDC had greater reduction in tooth size compared with the control group. The arch length and arch width were similar in patients with and without PDC.


Author(s):  
Kohinur Akther ◽  
Md Zakir Hossain

Aim: Objectives: To analyze variations in dental arch width in relation to oral habits.   Materials and Methods : Cross sectional  study was carried out Department of Orthodontics & Dentofacial Orthopedics of Dhaka Dental College & Hospital, Dhaka with a total number of 600 primary school children of 3-6 years ages of Bangladeshi population. Results: This study was a cross sectional study conducted among the 600 children with 3-6 years old prima- ry school children of Bangladeshi population. According to present study, bottle feeding causes significant reduction in maxillary intercanine width and mouth breathers show significant reduction of both arches. Conclusion: It was observed that the children who had used a bottle had a significant reduction in maxillary intercanine width. Breathing through mouth appeared to be associated with a reduction in the size of both arches. This was more significant in the maxillary intercanine , mandibular  intercanine and mandibular molar widths. Therefore to prevent malocclusions, the public should be informed of the harm caused by certain oral habits, the benefits of breast-feeding, and the need to correct bad habits at early life. Ban J Orthod & Dentofac Orthop, April 2016; Vol-7 (1-2), P.6-11


2006 ◽  
Vol 45 (02) ◽  
pp. 191-194 ◽  
Author(s):  
E. Tauferová ◽  
Z. Teuberová ◽  
M. Seydlová ◽  
V. Smutný ◽  
J. Racek ◽  
...  

Summary Objectives: The diagnostic procedure commences with the initial examination, during which a number of individual findings of the occlusion or malocclusion are clarified [1]. The objective is to describe the morphological and functional characteristics on each patient using specific guidelines, and then to provide a prognosis of the therapy. Upper and lower arch compression in first premolars and molars area was visible before treatment. Methods: A special device (Czech technical university research prototype) was prepared for this purpose. The optical head contains a digital color camera. The front of the optical head consists of a removable prism which is put into the mouth. The findings can display live images from the camera, which can be archived on a PC. The device captured and geometrically calibrated images permitting comparison of several different dental casts. Results: In the first part of this study 792 sets of study plaster casts were screened. Measurements of dental arch width between reference points of canines, first premolars and first molars were made: upper jaw: men: 3-3 – 35.1 mm (SE 0.13); 4-4 – 37.5 mm (SE 0.13); 6-6 – 48.1 mm (SE 0.19); women: 3-3 – 33.4 mm (SE 0.13); 4-4 – 35.6 mm (SE 0.15); 6-6 – 46.7 mm (SE 0.19). The second part concerns the group of 36 patients which is different from the 792 controls. There were studied changes between initial, post-treatment and post-retention alignment of upper and lower dental arch. Conclusions: Geometrically calibrated images help compare several different steps of the treatment and show a significant difference between patients before and after treatment.


2013 ◽  
Vol 3 (2) ◽  
pp. 22-26
Author(s):  
Nabil M Al-Zubair

Objective: To assess the dental arch forms of Yemeni adult sample. Materials & Method: The Eucledian clustering method of analysis was utilized for the determination of dental arch form. A total of 398 study models were constructed and evaluated to do measurements for both arches using a modified sliding caliper gauge. Six dental cast measurements divided into three sagittal and three transverse measurements were utilized to represent the dental arch width and length measurements. Result: Narrow form is the most prevalent arch form (30.9%) followed by wide form (23.9%), their prominence appear more in females and the least prevalent arch form was the mid form (9.3%), while flat and pointed forms were in between 18.3% and 17.6% respectively. Conclusion: Five arch forms: narrow, wide, mid, pointed and flat were distinguished as unique forms for the dental arches, with the predominance of the narrow arch form were found among Yemeni adults.  


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