The Effect of Various Classes of Malocclusions on the Maxillary Arch Forms and Dimensions in Jordanian Population

  title={The Effect of Various Classes of Malocclusions on the Maxillary Arch Forms and Dimensions in Jordanian Population},
  author={Raghda Wk Al Shammout},
Aim: The objective of this study was to determine the differences of clinical maxillary arch forms in Angle Class I, II, and III using arch dimension parameters. Materials and method: A total of 124 (76 females and 48 males) fully dentate Jordanian subjects (mean age=18.34±4.26; range=14-22 years) were clinically examined and divided into 3 groups according to Angle’s classifications (Class I, II and III). Study casts were made and measured for 4 linear measurements of maxillary cast dimensions… 

Figures and Tables from this paper


The results showed that there is no significant correlation in maxillary and mandibular arch forms among Angle’s Class I, Class II, and Class III malocclusion, and it was concluded that Class I occlusal relationship was the most common class of maloc inclusion followed by Class II.

The relationship of maxillary arch dimension with vertical facial morphology in proto-malay race

A significant positive correlation between intercanine and intermolar width and a negative correlation between arch length and palate height with vertical facial morphology in the male and female groups within the Proto-Malay race.

Associations among the anterior maxillary dental arch form, alveolar bone thickness, and the sagittal root position of the maxillary central incisors in relation to immediate implant placement: A cone-beam computed tomography analysis

The patient’s age-sex group, dental arch form, and SRP were associated with alveolar bone thickness around the maxillary central incisors with varying magnitudes, and clinicians should take these factors into account when planning immediate implant placement.



Comparison of the arch forms and dimensions in various malocclusions of the Turkish population

The most fre- quent arch form seen in Angle malocclusion groups was the tapered one, followed by the less frequent ovoid and square ones, and gender difference influences on morphological structure was apparent.

A comparative study of Caucasian and Japanese mandibular clinical arch forms.

The results suggest that there is no single arch form specific to any of the Angle classifications or ethnic groups, and it appears to be the frequency of a particular arch form that varies among Angle classification or Ethnic groups.

Dental and alveolar arch widths in normal occlusion and Class III malocclusion.

The findings of this study indicated that rapid maxillary expansion should be considered before or during the treatment of a Class III patient with or without face-mask therapy.

Variability of arch forms in various vertical facial patterns.

A non-linear relationship was found between arch length and arch width; so arch form guides could not be made for specific face types, and wide lower arches were predominant in all face types.

Evaluation of Arch Form among Patients Seeking Orthodontic Treatment

In a caseload of orthodontic patients, one should expect about 50% of ovoid arch forms, 32% of tapered arch forms and 18% of square arch forms; no single arch form is unique to any of the Angle’s classification of malocclusion.

Dental arch dimensions in the mixed dentition: a study of Brazilian children from 9 to 12 years of age

In the studied age range, anterior maxillary length increased from 10 to 12 years of age, males had larger maxillary depth than females and the predominant arch form was elliptical.

Dental and alveolar arch widths in normal occlusion, class II division 1 and class II division 2.

Comparing the transverse dimensions of the dental arches and alveolar arches in the canine, premolar, and molar regions of Class II division 1 and Class IIdivision 2 malocclusion groups with normal occlusion subjects indicates that rapid maxillary expansion rather than slow expansion may be considered before or during the treatment of Class I division 1 patients.

Comparison of dental arch and alveolar widths of patients with Class II, division 1 malocclusion and subjects with Class I ideal occlusion.

The results suggested that transverse discrepancy in Class II, division 1 patients originated from upper posterior teeth and not from the maxillary alveolar base, and slowmaxillary expansion rather than rapid maxillary expansion may be considered before or during the treatment of Class II-division 1 patients.

Maxillary and mandibular arch forms in the primary dentition stage.

The most common arch forms in the maxilla and mandible were the medium sized oval and square forms, respectively and intercanine width was the smallest in the tapered arch form.

Dental arch morphology in normal occlusions

During leveling and alignment phases, when elastic-alloy-wires are greatly used, the orthodontist could use any of the studied arch shapes (oval, square, tapered), once the prevalence of all of them was similar.