Three-dimensional analysis of dental arch forms in Italian population

Oliva, Bruno; Sferra, Simone; Greco, Anna Lucia; Valente, Francesco; Grippaudo, Cristina

doi:10.1186/s40510-018-0233-1

Cited by 24 publications

(18 citation statements)

References 34 publications

(30 reference statements)

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“…Regarding the dental arch height, this study showed that UTAH and UAAH did not change significantly with age over the two-year period. In contrast, previous studies [21] have shown that the height of the arch decreases with age. In clinical practice, for patients with high palates, we do not recommend performing maxillary expansion immediately.…”

Section: Discussioncontrasting

confidence: 78%

Evaluation of Growth and Development of Late Mixed Dentition Upper Dental Arch with Normal Occlusion Using 3-Dimensional Digital Models

Yang

Liang

Zhang

et al. 2019

Journal of Healthcare Engineering

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Objective The purpose of this study was to observe the three-dimensional growth and development of the maxillary arch in 10-year-olds with normal occlusion during the late mixed dentition stage. Methods Forty-four 10-year-old students (22 males and 22 females) who had normal occlusion during late mixed dentition were selected from an elementary school in Beijing, China. Once per year for three consecutive years, a dental cast was obtained from each subject, and the cast was scanned with a 3D digital scanner (R700 3D). The three-dimensional measurements of the maxillary dental arch and the inclination of the bilateral maxillary first molars were obtained from the digital model. Results The upper anterior arch length (UAAL), upper total arch length (UTAL), upper inter primary or permanent canine width (UICW), upper intermolar width (UIMW), and upper dental arch length (UDAL) increased by 0.959 mm, 0.583 mm, 0.955 mm, 1.462 mm, and 2.46 mm, respectively, over the two years (P < 0.001). UR6BL and UL6BL decreased by 4.416° and 7.133°, respectively, over the two years (P < 0.001). The values of the UICW and UIMW were 1.67 mm and 1.86 mm, respectively, larger in males than in females at 12 years old (P < 0.01). The change in the UTAL was 0.431 mm greater in males than in females over the 2 years (P < 0.05). Conclusion The UAAL, UTAL, UICW, UIMW, and UDAL in 10- to 12-year-olds with normal occlusion increased with age. The buccolingual inclination of the bilateral maxillary first molars inclined to the palatal side with age. The UICW and UIMW were larger in males than in females at 12 years old. The male UTAL increased more than the female UTAL over the 2 years.

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Section: Discussioncontrasting

confidence: 78%

Evaluation of Growth and Development of Late Mixed Dentition Upper Dental Arch with Normal Occlusion Using 3-Dimensional Digital Models

Yang

Liang

Zhang

et al. 2019

Journal of Healthcare Engineering

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“…Dental arch forms have been evaluated in different populations [ 14 – 17 ]. However, no studies have been conducted in Jordan.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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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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“…This may be related to the difference in the ethnic group, sample size and selection with regard to the facial type. Oliva et al 13 explained that difference by the more ovoid and flatter maxillary arch form of females.…”

Section: Discussionmentioning

confidence: 99%

A New Method for Dental Cast Analysis

2020

IJFMT

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Objectives: This study aimed to develop a new method of dental cast analysis using angular measurements. Materials and methods:One hundred study models belong to 100 Iraqi healthy adults with class I occlusion were assessed using Planmeca dimax software. Three angular measurements at the levels of maxillary canines, second premolar and second molars cusp tips with the tip of the angles at the midpoint between the two central incisors were measured. Gender difference was evaluated by unpaired t-test and the relation between the angles was assessed by Pearson's correlation coefficient test. Results:The results revealed higher mean values of the measured parameters in males with direct, moderate to strong, significant correlation. Conclusions:A new method was developed and could be used to assess the growth and treatment changes in the future researches.

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Three-dimensional analysis of dental arch forms in Italian population

Cited by 24 publications

References 34 publications

Evaluation of Growth and Development of Late Mixed Dentition Upper Dental Arch with Normal Occlusion Using 3-Dimensional Digital Models

Evaluation of Growth and Development of Late Mixed Dentition Upper Dental Arch with Normal Occlusion Using 3-Dimensional Digital Models

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

A New Method for Dental Cast Analysis

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