scholarly journals Polynomial Analysis of Dental Arch Form of Nepalese Adult Subjects

2013 ◽  
Vol 3 (1) ◽  
pp. 7-13
Author(s):  
Rabindra Man Shrestha
Keyword(s):  
Orthodontic Treatment ◽  
Adult Population ◽  
Polynomial Method ◽  
Dental Arch ◽  
Stable Form ◽  
Arch Form ◽  
Normal Occlusion ◽  
Arch Forms ◽  
The Individual ◽  
Dental Arch Form

Introduction: Human dental arch acquires stable form and dimensions with the attainment of adulthood. The orthodontic treatment regimen signifies the predetermination of the shape and type of dental arch form of a particular adult population to harmonize with their natural pattern. The use of predetermined arch form helps in diagnosis, treatment planning and stability of orthodontic treatment results. Objective: To analyze the dental arch forms of Nepalese adults and to classify them into morphological types. Materials & Method: Predetermined transverse and sagittal dimensions on dental stone models of one hundred Nepalese adults aged 17-32 years with normal occlusion and dentofacial proportion were measured using standardized Boley gauze. The analysis was done according to Raberin’s mathematical sixth degree polynomial method. The study compared the gender difference among the Nepalese samples. Result: The distribution of the Nepalese arch form types were; 26% flat arch, 24% wide arch, 19% pointed arch, 18% narrow arch and 13% mid arch. Conclusion: Considerable variation in distribution of dental arch form types found between Nepalese male and female samples and among population groups. The analysis enables the mathematical method that predetermines the dental arch form of the individual orthodontic patient.DOI: http://dx.doi.org/10.3126/ojn.v3i1.9267 Orthodontic Journal of Nepal, Vol.3, No.1, 2013: 7-13

scholarly journals Mandibulary dental arch form differences between level four polynomial method and pentamorphic pattern for normal occlusion sample

2011 ◽  
Vol 23 (2) ◽  
Author(s):  
Y. Yuliana ◽  
Bergman Thahar ◽  
Jono Salim ◽  
Endah Mardiati
Keyword(s):  
Orthodontic Treatment ◽  
Dental Health ◽  
Treatment Plan ◽  
Radiographic Examination ◽  
Polynomial Method ◽  
Dental Arch ◽  
Arch Form ◽  
Normal Occlusion ◽  
Significant Difference ◽  
Dental Arch Form

The aim of an orthodontic treatment is to achieve aesthetic, dental health and the surrounding tissues, occlusal functional relationship, and stability. The success of an orthodontic treatment is influenced by many factors, such as diagnosis and treatment plan. In order to do a diagnosis and a treatment plan, medical record, clinical examination, radiographic examination, extra oral and intra oral photos, as well as study model analysis are needed. The purpose of this study was to evaluate the differences in dental arch form between level four polynomial and pentamorphic arch form and to determine which one is best suitable for normal occlusion sample. This analytic comparative study was conducted at Faculty of Dentistry Universitas Padjadjaran on 13 models by comparing the dental arch form using the level four polynomial method based on mathematical calculations, the pattern of the pentamorphic arch and mandibular normal occlusion as a control. The results obtained were tested using statistical analysis T student test. The results indicate a significant difference both in the form of level four polynomial method and pentamorphic arch form when compared with mandibular normal occlusion dental arch form. Level four polynomial fits better, compare to pentamorphic arch form.

scholarly journals Evaluation of Mandibular Arch Form in A Sudanese Adult Sample With Normal Occlusion 

2020 ◽  
Author(s):  
Raja Mustafa ◽  
Amal Abuaffan
Keyword(s):  
Cross Sectional Study ◽  
Polynomial Method ◽  
Dental Arch ◽  
Easy Method ◽  
Cross Sectional ◽  
Arch Form ◽  
Mandibular Arch ◽  
Normal Occlusion ◽  
Orthodontic Patients ◽  
Arch Forms

Abstract Background: In fixed orthodontic therapy, maintenance of the original mandibular arch form is considered an essential factor for stability, moreover with the popular use of elastic archwires, and because its shape cannot be easily altered, the pre-determination of mandibular arch form becomes very important for each patient. The purpose of this study is to analyze the mandibular dental arch forms of Sudanese adults with normal occlusion and provides an easy method for orthodontists to determine different types of arch form. Methods: This Descriptive analytical, cross-sectional study determined the mandibular arch in a sample of 104 Sudanese university students. Measurements were done in the mandibular dental cast. Three arch widths and three arch lengths measurements were established and five ratios were determined. Analysis of arch form was done according to Raberin’s polynomial method. Results: The mid arch form was the most prevalent (75%), followed by narrow arch form (11.54%), wide arch form (6.73%), and pointed arch form (6.73%). There were no cases in flat arch form. Conclusions: In Sudanese subjects, four types of arch form were recognized. Norms of transverse and sagittal dimensions of the mandibular arch to determine types of the mandibular arch form in Sudanese orthodontic patients become available.

scholarly journals Is there any association between facial type and mandibular dental arch form in subjects with normal occlusion?

2014 ◽  
Vol 36 (1) ◽  
pp. 129
Author(s):  
Luiz Renato Paranhos ◽  
Adilson Luiz Ramos ◽  
Eduardo De Novaes Benedicto ◽  
Liliana Àvila Maltagliati ◽  
Maurício De Almeida Cardoso ◽  
...  
Keyword(s):  
Dental Arch ◽  
Arch Form ◽  
Normal Occlusion ◽  
Facial Type ◽  
Dental Arch Form

scholarly journals Establishment of Yemeni Dental Arch Form

2013 ◽  
Vol 3 (2) ◽  
pp. 22-26
Author(s):  
Nabil M Al-Zubair
Keyword(s):  
Dental Arch ◽  
Clustering Method ◽  
Arch Form ◽  
Arch Width ◽  
Length Measurements ◽  
Arch Forms ◽  
Dental Arch Width ◽  
Dental Cast ◽  
Dental Arch Form

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.  

scholarly journals Can 3D imaging and digital software increase the ability to predict dental arch form after orthodontic treatment?

2019 ◽  
Vol 156 (6) ◽  
pp. 870-877
Author(s):  
Sahar Hadadpour ◽  
Mohammad Noruzian ◽  
Amir H. Abdi ◽  
Alireza Akbarzadeh Baghban ◽  
Mahtab Nouri
Keyword(s):  
Orthodontic Treatment ◽  
3D Imaging ◽  
Dental Arch ◽  
Arch Form ◽  
Dental Arch Form

scholarly journals Correlation between the distance of maxillary central incisors and incisive papilla in different arch form

2012 ◽  
Vol 24 (1) ◽  
Author(s):  
Nur Ateyya Natasha Mohd Zali ◽  
Rasmi Rikmasari ◽  
Hasna Dziab
Keyword(s):  
Undergraduate Students ◽  
Dental Arch ◽  
Anatomical Landmarks ◽  
Male And Female ◽  
Arch Form ◽  
Anterior Teeth ◽  
Significant Difference ◽  
Arch Forms ◽  
The Individual ◽  
Gender Factor

In edentulous treatment, relocation of anterior teeth in the preexisting natural position is the utmost importance. It is necessary to refer to the significant anatomical landmarks, one of them is incisive papilla. To make it more efficient both functionally and biologically, the teeth were arranged in particular geometric manner known as a dental arch. The author has chosen to conducted the research among the Malay race represented by the Malay undergraduate students. The purpose of this study was to evaluate the correlation between the distance of maxillary central incisors and incisive papilla (CI-IP) in different arch form and gender. Maxillary impressions of 34 dentate individuals were taken, and the measurements were performed using a digital caliper. The results showed the CI-IP distance was ranging between 7.65 to 9.90 mm, with the average of 8.77 mm. There was no significant difference of the CI-IP distance between male and female regardless of their arch forms (p>0.05). Individuals with ovoid and tapered arch form, however, showed a significant difference of the CI-IP distance between male and female (p<0.05). Meanwhile, Individuals with square arch form showed no significant difference of the CI-IP distance between male and female (p>0.05). It can be concluded that gender factor was irrelevant towards the CI-IP distance regardless of the individual arch form. However, there was a correlation between the CI-IP distance in different arch forms in both male and female sample.

Dental Arch Form Analysis in Gujarati Males and Females having Normal Occlusion

2012 ◽  
Vol 46 (4_suppl2) ◽  
pp. 295-299
Author(s):  
Vishnu Jagdishbhai Patel ◽  
Amarjitsingh F Bhatia ◽  
Sonali M Mahadevia ◽  
Shrey Italia ◽  
Malay Vaghamsi
Keyword(s):  
Dental Arch ◽  
Form Analysis ◽  
Arch Form ◽  
Normal Occlusion ◽  
Males And Females ◽  
Dental Arch Form

scholarly journals Maxillary and mandibular dental arch forms in a Jordanian population with normal occlusion

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
M. Aljayousi ◽  
S. Al-Khateeb ◽  
S. Badran ◽  
E. S. Abu Alhaija
Keyword(s):  
Computer Software ◽  
Medium Size ◽  
Dental Arch ◽  
Arch Form ◽  
Mandibular Arch ◽  
Jordanian Population ◽  
Normal Occlusion ◽  
Arch Forms ◽  
Maxilla And Mandible ◽  
Orthodontic Archwires

Abstract Background Ethnic background has been claimed to affect arch form. The purpose of this study was to describe and elucidate the maxillary and mandibular arch forms in Jordanian population and to develop a classification method for these forms which could be employed to construct orthodontic archwires accordingly. Methods The sample was comprised of study casts of five hundred and twenty subjects (231 males and 289 females with a mean age of 15.4 ± 1.02 years). All subjects had permanent dentition with normal occlusion. A mathematical method associated with a polynomial function of 6th degree was employed to assess the dental arch forms. The resultant arch forms were classified into 5 groups for both the maxilla and mandible utilizing a computer software with special code designed for this study. Each group was subdivided into 3 subgroup sizes namely: small, medium, and large. Results Catenary arch form was found in 47% and 41.2% (p ˂ 0.01) of maxilla and mandible arch forms, respectively. Form 2 (which is halfway between ellipse and U-shaped arch form) was found in 27.7% and 26.7%. Medium size arch form was found in 55.4% of the maxillary and 65.6% of the mandibular arch forms. Conclusion Catenary arch form was the most prevalent arch form, followed by wide elliptical form. The other forms, which included tudor arch, tapered equilateral and quadrangular forms were less frequent. Regarding size, the medium size was the most prevalent among the studied samples.

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