Evaluation of the dental arch asymmetry in natural normal occlusion and Class II malocclusion individuals

Scanavini, Paulo Estevão; Paranhos, Luiz Renato; Torres, Fernando César; Vasconcelos, Maria Helena Ferreira; Jóias, Renata Pilli; Scanavini, Marco Antônio

doi:10.1590/s2176-94512012000100016

Cited by 13 publications

(13 citation statements)

References 10 publications

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“…(14) A study by Scanavini et al in Brazil in 2012 revealed that asymmetrical values were observed in the dental arches of individuals with normal occlusion and Class II and Class III malocclusions. (15) The level of asymmetry in the mandibular arch was greater than that in the maxillary arch, but in our study, symmetrical values were evaluated regarding the teeth size ratios. In 2011, Malkoç et al in Turkey discovered that there was a significant difference in the mesiodistal dimensions of the teeth between males and females.…”

Section: Resultsmentioning

confidence: 84%

Evaluating the Symmetry of Permanent Teeth Dimensions on Two Sides of Dental Arches with Different Occlusions and Related Factors

Kaviani

Mackinejad

Takromi³

et al. 2018

J Res Dentomaxillofac Sci

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Background and Aim:Considering the importance of teeth dimensions in their adequacies and aesthetics, their significant racial differences, and various statistics regarding the dimensions of symmetrical teeth in previous articles, we aimed to evaluate the dimensions of symmetrical permanent teeth on two sides of the maxillary and mandibular dental arches and related factors in different occlusions of students and patients of Islamic Azad Dental University of Tehran. Materials and Methods: This cross-sectional study was conducted on 210 people. A dental cast was made for each individual. The mesiodistal, labiolingual, and occlusogingival dimensions of the clinical crowns were measured using a caliper with the accuracy of 0.1 mm along with their adaptation and symmetry on two sides of the maxillary and mandibular dental arches and related factors. Data were analyzed using Chi-square test. Results: 67.1% of the patients were females and 32.9% were males. There were 69.3% symmetric and 30.7% asymmetric cases; there were no significant differences in terms of the dimensions, gender, and jaws (P<0.8). Regarding teeth types and variations in maxillary and mandibular central incisors, symmetrical values were 10.3%, while non-symmetrical values were 31.3%. Asymmetrical values in central incisors of both dental arches were significantly greater than symmetrical values. Conclusion: It seems that on the left and right sides of both dental arches of permanent teeth in both genders, symmetrical values are greater than asymmetrical values. Asymmetrical values in central incisors of both arches were significantly greater than symmetrical values.

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Section: Resultsmentioning

confidence: 84%

Evaluating the Symmetry of Permanent Teeth Dimensions on Two Sides of Dental Arches with Different Occlusions and Related Factors

Kaviani

Mackinejad

Takromi³

et al. 2018

J Res Dentomaxillofac Sci

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“…Distance of canines (DC) is the linear measurement from right to left canine tips ( Figure 3). This angular and linear measurement of upper and lower arch dental asymmetry has predictive accuracy and is marked as negative if shifted to the left (Scanavini et al, 2012).…”

Section: Discussionmentioning

confidence: 96%

“…In some emerging countries, panoramic radiographs were suitable for screening CH, although the diagnostic gold standard was to assess condylar growth activity using bone scintigraphy (Nolte et al, 2015). Previous studies have also reported that there were no significant association between vertical mandibular asymmetry and temporomandibular disorder symptom (Mendoza-García et al, 2019;Sofyanti et al, 2018). Therefore, we used photography, positive posterior cross bite from plaster cast and positive temporomandibular disorder in a cohort of 10-30 year old patients based on their initial dental record in this study.…”

Section: Discussionmentioning

confidence: 97%

“…The symmetry axis of the lower arch midline was obtained by connecting the Ai to the most visible posterior landmark (Pi) over the lingual frenulum to the posterior border of lower arch. After marking the midline symmetry axis, we can evaluate the dental arch asymmetry by measuring dental midline deviation (MD), canine tip in the dental arch (PC), distance of the upper canines from the palatal suture (DC) and inter canine distance (ICD) in the upper and lower arches (Scanavini et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of dental arches in orthodontic patients with condylar hyperplasia in a North Sumatra subpopulation: a cross-sectional study

et al. 2020

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Background: Condylar Hyperplasia (CH) is a self-limiting mandibular condyle disorder that shows asymmetry progress conjunction with associated occlusal changes as long as condylar growth is still active and leads to facial asymmetry. This study aimed to evaluate dental arches by analyzing dental arch asymmetry and form in orthodontic patients with CH in a North Sumatra subpopulation. Methods: This is a retrospective study of suspected CH patient’s clinical records who sought for the initial orthodontic treatment between January 2015 to March 2019. Patient with facial asymmetry (based on photography, posterior cross bite and midline deviation), positive temporomandibular joint disorder in functional analysis, and no history of facial trauma were included in the study. Dental arch asymmetry was based on the measurement of dental midline deviation, canine tip in the dental arch, distance of the upper canines from the palatal suture, and inter canine distance. The evaluation of dental arch was achieved by comparing arch width and length. Results: There was a significant difference (p<0.05) of upper canine distance from the palatal suture in female patients when evaluating upper dental arch asymmetry. There was a moderate correlation (r=0.379) in midline deviation between upper and lower dental arch. The dimension and dental arch form was mid and flat, and there was moderate correlation (r=0.448) between the upper and lower dental arch form in these CH patients. Conclusion: The evaluation of dental arch symmetry and arch form showed asymmetric occlusal characteristics in orthodontics patient with CH in North Sumatera subpopulation. In treating these patients, we recommend the plaster cast evaluation as essential and routine procedure in order to understand the complexity of occlusal change due to active growth of condylar and limitation in radiography evaluation.

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“…Dental positions are modified, as well as muscles and soft tissue, in order to prevent extractions (FRÄNKEL et al, 1969;CHADWICK et al, 2001;SCANAVINI et al, 2012, PARANHOS et al, 2013.…”

Section: Introductionmentioning

confidence: 99%

The influence of Fränkel-2 Function Regulator in the lower anterior teeth crown length

Vasconcelos¹,

Scanavini²,

Jóias³

et al. 2015

Biosci. J.

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Functional orthopedic appliances used for Class II malocclusion treatment, usually work by guiding jaws growth and modifying dental positions. Among these dentoalveolar effects, it is the lower incisors buccal tipping, that helps to improve the overjet, but may cause gingival recessions, especially when associated with other etiological factors. The objective of this study was to evaluate the clinical crown length of the lower anterior teeth in individuals with Angle's Class II malocclusion, after treatment with Fränkel-2 function regulator appliance (RF-2). Fifty Class II-malocclusion individuals were divided into 2 groups: G1 -14 male, and 11 female, treated with the Fränkel-2 function regulator appliance for 18 months, with average pre-treatment age (T1) of 11 years (sd=7 months) and average post-treatment age (T2) of 12 years and 7 months (sd=7 months); and G2 -a control group with 25 individuals (12 male and 13 female) with average age at T1 of 10 years and 3 months (sd=11 months) and at T2 of 12 years and 1 month (sd=11 months), which was part of a normal occlusion sample. The 100 dental cast models were analyzed at T1 and T2, with a digital caliper, measuring the distance from the incisal edge to the most concave portion of the gingival margin of lower incisors and canines. Data were checked by a Student's t-test and a paired t-test. Considering T2, the group 1 presented a significant increase in the crown length of all lower anterior teeth. On the other hand, in the group 2, this was observed only for the teeth 33, 42 and 43, suggesting that patients treated with RF-2 had more gingival recession than the control group.

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Evaluation of the dental arch asymmetry in natural normal occlusion and Class II malocclusion individuals

Cited by 13 publications

References 10 publications

Evaluating the Symmetry of Permanent Teeth Dimensions on Two Sides of Dental Arches with Different Occlusions and Related Factors

Evaluating the Symmetry of Permanent Teeth Dimensions on Two Sides of Dental Arches with Different Occlusions and Related Factors

Evaluation of dental arches in orthodontic patients with condylar hyperplasia in a North Sumatra subpopulation: a cross-sectional study

The influence of Fränkel-2 Function Regulator in the lower anterior teeth crown length

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