scholarly journals A mathematic-geometric model to calculate variation in mandibular arch form

2000 ◽  
Vol 22 (2) ◽  
pp. 113-125 ◽  
Author(s):  
S Mutinelli
Keyword(s):  
Geometric Model ◽  
Arch Form ◽  
Mandibular Arch

scholarly journals The Catenary Curve: A Guide To Mandibular Arch Form

2015 ◽  
Vol 01 (01) ◽  
Author(s):  
Gary Goldstein ◽  
Yash Kapadia ◽  
Terry Y Lin ◽  
Paul Zhivago
Keyword(s):  
Arch Form ◽  
Mandibular Arch ◽  
Catenary Curve

Mandibular arch form: The relationship between dental and basal anatomy

2008 ◽  
Vol 134 (3) ◽  
pp. 430-438 ◽  
Author(s):  
Valerie Ronay ◽  
R. Matthew Miner ◽  
Leslie A. Will ◽  
Kazuhito Arai
Keyword(s):  
Arch Form ◽  
Mandibular Arch ◽  
The Relationship

scholarly journals Evaluation of conformity of preformed orthodontic archwires and dental arch form

2019 ◽  
Vol 24 (1) ◽  
pp. 44-52
Author(s):  
Maheen Ahmed ◽  
Attiya Shaikh ◽  
Mubassar Fida
Keyword(s):  
Post Treatment ◽  
Class I ◽  
Dental Arch ◽  
Facial Profile ◽  
Arch Form ◽  
Mandibular Arch ◽  
The Mean ◽  
Dental Records ◽  
Orthodontic Archwires ◽  
Dental Arch Form

ABSTRACT Introduction: The alterations in the arch form during treatment are dictated by the dimensions of the archwires. Objective: This study aimed to determine the mean arch dimensions of a sample of Pakistani subjects and to evaluate the conformity of preformed archwires with mandibular arch form. Methods: The dental records of 1,500 adult subjects were evaluated. The mandibular casts of 42 subjects (males = females = 21) with balanced facial profile, Class I occlusion, ideal overjet and overbite were included. Brackets were bonded on all teeth. Arch dimensions were evaluated at canines, first premolars, second premolars, first and second molars, with digital vernier calipers. The arch widths at the level of aforementioned teeth were evaluated on the digitized archwires, using the mean arch depths of the subjects. Results: In males, the archwires were found to be wider at canines and premolars, and significantly narrower at first (p< 0.001, 95% CI = 2.03 - 5.74) and second molars (p< 0.001, 95% CI = 2.29 - 7.73) as compared to the arch dimensions of the mandibular casts. In females, the archwires were significantly narrower at canines (p< 0.001, 95% CI = 1.4 - 3.97), and first (p= 0.02, 95% CI = 0.402 - 4.41) and second molars (p< 0.001, 95% CI = 1.76 - 6.13). Conclusion: No single commercially available archwires evaluated in the present study conformed to the arch dimensions of our subjects. Utilization of the currently available archwires may result in unwarranted modification of arch form, which may lead to unstable post-treatment teeth position.

A computerized analysis of the shape and stability of mandibular arch form

1987 ◽  
Vol 92 (6) ◽  
pp. 478-483 ◽  
Author(s):  
J.Mark Felton ◽  
Peter M. Sinclair ◽  
Daniel L. Jones ◽  
Richard G. Alexander
Keyword(s):  
Arch Form ◽  
Mandibular Arch ◽  
Computerized Analysis

scholarly journals Correlation of maxillary and mandibular arch form and tooth size ratio in ethnic Javanese malocclusion patient

2019 ◽  
Vol 11 (2) ◽  
pp. 75
Author(s):  
IGusti Aju Wahju Ardani ◽  
Dhansha Kannayyah ◽  
Ari Triwardhani
Keyword(s):  
Size Ratio ◽  
Tooth Size ◽  
Arch Form ◽  
Mandibular Arch

scholarly journals UKURAN DAN BENTUK LENGKUNG GIGI RAHANG BAWAH PADA SUKU MONGONDOW

e-GIGI ◽  
2015 ◽  
Vol 3 (2) ◽  
Author(s):  
Rahmaya E. U. Paputungan ◽  
P. S. Anindita ◽  
Krista V. Siagian
Keyword(s):  
Ethnic Group ◽  
Cross Sectional Study ◽  
Dental Arch ◽  
Sectional Study ◽  
Cross Sectional ◽  
Arch Form ◽  
Purposive Sampling ◽  
Mandibular Arch ◽  
Maximum Stability ◽  
Dental Arch Length

Abstract: Mandibular arch size and form are required in order to establish proper diagnoses and orthodontic treatment plans. Mandibular dental arch is a factor affecting maximum stability of treatment outcomes. The purpose of this study was to determine means of mandibular arch size and form in Mongondow ethnic group.This research was classified into descriptive observational with cross sectional study. Sample of this research were 35 peoples aged 18-25 years at the original Mongondow ethnic group based on two generation of grandparents. Samples were taken by using purposive sampling method. The measurement of dental arch length and width were done in sagittal and transversal direction based on the Raberin’s method. Results showed that the average values of mandibular arch length in Mongondow ethnic group which categorized as depths of canines (L31), depths first molars (L61) and depths of second molars were 5.18 mm;24.26 mm; and 39.34 mm respectively. The average values of mandibular arch width which categorized as inter canines (L33), inter first molars (L66) and inter second molars (L77) were 27.38 mm, 45.60 mm and 53.59 mm respectively. The most mandibular arch form of Mongondow ethnic group was mid (51.4%) and the less of this group was pointed (5.7%).Keywords: dental arch size, dental arch form, mandibular, Mongondow ethnic groupAbstrak: Ukuran dan bentuk lengkung gigi rahang bawah sangat diperlukan dalam menentukan diagnosa dan rencana perawatan ortodontik yang tepat. Lengkung gigi rahang bawah merupakan faktor yang sangat berpengaruh dalam mempertahankan stabilitas hasil perawatan ortodonti. Tujuan penelitian ini yaitu untuk mendapatkan rerata ukuran dan bentuk lengkung gigi rahang bawah pada suku Mongondow. Jenis penelitian ini yaitu observasional deskriptif dengan desain penelitian cross sectional study. Sampel yang diperoleh sebanyak 35 orang suku Mongondow asli dari dua generasi yag berusia 18-25 tahun. Pengambilan sampel dilakukan dengan menggunakan teknik purposive sampling. Pengukuran panjang dan lebar lengkung gigi diukur dalam arah sagital dan transversal pada model studi/hasil cetakan rahang bawah dengan metode Raberin. Hasil pengukuran diperoleh rerata ukuran panjang lengkung gigi rahang bawah pada suku Mongondow yang dikategorikan sebagai kedalaman kaninus (L31), kedalaman molar pertama (L61) dan kedalaman molar kedua (L71) berturut-turut yaitu 5,18 mm; 24,26 mm; dan 39,34 mm. Rerata ukuran lebar lengkung gigi yang dikategorikan sebagai lebar interkaninus (L33), lebar intermolar pertama (L66) dan lebar intermolar kedua (L77) berturut-turut yaitu 27,38 mm; 45,60 mm dan; 53,59 mm. Bentuk lengkung gigi rahang bawah pada suku Mongondow paling banyak yaitu bentuk mid (51,4%) dan yang paling sedikit yaitu bentuk pointed (5,7%). Kata kunci: ukuran lengkung gigi, bentuk lengkung gigi, rahang bawah, suku Mongondow

scholarly journals Three-Dimensional Analysis of Mandibular Arch Form in Skeletal Class Ⅲ Facial Asymmetry Using a Digital Model

2018 ◽  
Vol 28 (1) ◽  
pp. 10-18
Author(s):  
YASUSHI NISHII ◽  
MUNETADA ISHIKAWA ◽  
YOICHIRO NIIKURA ◽  
KEITAROU ARAKAWA ◽  
HIROYUKI OGURA ◽  
...  
Keyword(s):  
Dimensional Analysis ◽  
Three Dimensional ◽  
Facial Asymmetry ◽  
Digital Model ◽  
Arch Form ◽  
Skeletal Class ◽  
Mandibular Arch

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.

Sign in / Sign up

Export Citation Format

Share Document