Using the Finite Element Method to Determine the Odonto-Periodontal Stress for a Patient with Angle Class II Division 1 Malocclusion

Katta, Mahmoud; Petrescu, Stelian-Mihai-Sever; Dragomir, Lucian Paul; Popescu, Mihai; Georgescu, Ruxandra Voinea; Ţuculină, Mihaela Jana; Popa, Dragoș Laurențiu; Duță, Alina; Diaconu, Oana Andreea; Dascălu, Ionela Teodora

doi:10.3390/diagnostics13091567

Cited by 4 publications

(5 citation statements)

References 26 publications

(39 reference statements)

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“…In the rural areas of Vâlcea County, we recorded the highest number of schoolchildren with malocclusions in female gender, Angle class I (120). We found the lowest number of schoolchildren with malocclusions in male gender, Angle class III (11) (see Table 2). In the urban areas of Vâlcea County, we recorded the highest number of schoolchildren with malocclusions in female gender, Angle class I and in male gender, Angle class II (195 each).…”

Section: Distribution Of Malocclusionsmentioning

confidence: 66%

Prevalence of Malocclusions Among Schoolchildren from Southwestern Romania

Petrescu,

Pisc,

Ioana

et al. 2024

Preprint

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Malocclusions have a continuously increasing prevalence from a generation to another as a result of climate changes, soil, atmosphere and water pollution. All of these aspects have unfavorable consequences on the nutritional scheme. Thus, nutrition together with other etiopathogenic factors contribute to complex alterations in the somatic development of the entire organism and, implicitly, of the cephalic extremity. The study group included 4147 children from randomly selected schools from Vâlcea County, Romania. The aim of this study is to determine the prevalence of malocclusions in schoolchildren from Vâlcea County, Romania, according to the three main classes of malocclusions (according to Angle’s classification), age groups (from 6 to 10 years old and from 11 to 14 years old), gender (male and female) and place of origin (rural and urban). For Angle class I malocclusions we recorded the highest prevalence (48,78% from the total number of schoolchildren with malocclusions), followed by Angle class II malocclusions (45,85% from the total number of schoolchildren with malocclusions) and for Angle class III malocclusions we found the lowest prevalence (5,37% from the total number of schoolchildren with malocclusions).According to gender, we found the highest prevalence in female gender (29,90% from the total number of female subjects), while in male gender we recorded a prevalence of 27,70% from the total number of male subjects. Regarding the place of origin, there is a higher prevalence of malocclusions in the urban areas (29,16%). The study subgroup included 140 children randomly selected from the total number of subjects from the study group. They were included in a more advanced study. The aim is to find potential associations between the presence of malocclusions and various oral variables. Categorical variables were expressed as numerical values and percentages, and their association was evaluated with either the Chi-square test of association or homogeneity, or the Fisher Exact test. The acquired data were incorporated into a binomial logistic regression model to assess the likelihood of developing malocclusions in relation to the following variables: defective phonation, bruxism, frequency of teeth brushing, onychophagia, oral respiration, infantile deglutition, placing objects between the maxillaries, thumb sucking and salivary aspects. It is also aimed to compare the results obtained with similar ones from the specialized literature.

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Section: Distribution Of Malocclusionsmentioning

confidence: 66%

Prevalence of Malocclusions Among Schoolchildren from Southwestern Romania

Petrescu,

Pisc,

Ioana

et al. 2024

Preprint

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show abstract

“…In the rural areas of Vâlcea County, we recorded the highest number of schoolchildren with malocclusions in female gender, Angle class I (120). We found the lowest number of schoolchildren with malocclusions in the male gender, Angle class III (11) (see Table 2). In the urban areas of Vâlcea County, we recorded the highest number of schoolchildren with malocclusions in the female gender, Angle class I, and in the male gender, Angle class II (195 each).…”

Section: Distribution Of Malocclusionsmentioning

confidence: 68%

“…Currently, the World Health Organization (WHO) estimates that malocclusions are the third most common oral health problem, after dental caries and periodontal diseases [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Prevalence of Malocclusions among Schoolchildren from Southwestern Romania

Petrescu,

Pisc,

Ioana

et al. 2024

Diagnostics

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Malocclusions have a continuously increasing prevalence from one generation to another as a result of climate change, soil, atmosphere, and water pollution. All of these aspects have unfavorable consequences for the nutritional scheme. Thus, nutrition, together with other etiopathogenic factors, contributes to complex alterations in the somatic development of the entire organism and, implicitly, of the cephalic extremity. The study group included 4147 children from randomly selected schools from Vâlcea County, Romania. The aim of this study is to determine the prevalence of malocclusions in schoolchildren in Vâlcea County, Romania, according to the three main classes of malocclusions (according to Angle’s classification), age groups (from 6 to 10 years old and from 11 to 14 years old), gender (male and female), and place of origin (rural and urban). For Angle class I malocclusions, we recorded the highest prevalence (48.78% of the total number of schoolchildren with malocclusions), followed by Angle class II malocclusions (45.85% of the total number of schoolchildren with malocclusions), and for Angle class III malocclusions we found the lowest prevalence (5.37% of the total number of schoolchildren with malocclusions). According to gender, we found the highest prevalence in the female gender (29.90% of the total number of female subjects), while in the male gender, we recorded a prevalence of 27.70% of the total number of male subjects. Regarding the place of origin, there is a higher prevalence of malocclusions in urban areas (29.16%). The study subgroup included 140 children randomly selected from the total number of subjects in the study group. They were included in a more advanced study. The aim is to find potential associations between the presence of malocclusions and various oral variables. Categorical variables were expressed as numerical values and percentages, and their association was evaluated with either the Chi-square test of association or homogeneity, or the Fisher Exact test. The acquired data were incorporated into a binomial logistic regression model to assess the likelihood of developing malocclusions in relation to the following variables: defective phonation, bruxism, frequency of teeth brushing, onychophagia, oral respiration, infantile deglutition, placing objects between the maxillaries, thumb sucking, and salivary aspects. It is also aimed at comparing the results obtained with similar ones from the specialized literature.

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“…This study, based on virtual techniques, demonstrates that forces acting on each tooth of the orthodontic system, similar to those used in real patients treated with the lingual technique, can be calculated. The finite element method allows for the determination of displacements, deformations, and stresses [ 43 , 44 ].…”

Section: Discussionmentioning

confidence: 99%

Orthodontic System Modeled and Simulated with the Lingual Technique to Assess Tooth Forces

Hazem,

Mărășescu,

Țuculină

et al. 2024

Diagnostics

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CBCT (cone beam computed tomography) is an imaging investigation that provides three-dimensional (3D) images of craniofacial structures. The purpose of this study is to determine the mechanical behavior of an orthodontic system where the lingual treatment technique was used in a 25-year-old female patient from whom a set of CBCT scans was used. CBCT images were processed through software programs such as Invesalius, Geomagic, and Solid Works, to create models containing virtual solids. These models were then imported into Ansys Workbench 2019 R3 (a finite element method software program) for successive simulations to generate displacement maps, deformations, stress distributions, and diagrams. We observed that in the lingual technique, the lowest force occurring on the maxillary teeth is at 1.1, while the highest force appears at 2.3. In the mandible, the lowest force occurs at 4.6, and the highest force at 3.1. The values of the forces and the results of the finite element method can represent a basis for the innovation of new orthodontic springs and also of bracket elements. Thus, by using new technologies, orthodontic practice can be significantly improved for the benefit of patients. Other virtual methods and techniques can be used in future studies, including the application of virtual reality for orthodontic diagnosis.

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Using the Finite Element Method to Determine the Odonto-Periodontal Stress for a Patient with Angle Class II Division 1 Malocclusion

Cited by 4 publications

References 26 publications

Prevalence of Malocclusions Among Schoolchildren from Southwestern Romania

Prevalence of Malocclusions Among Schoolchildren from Southwestern Romania

Prevalence of Malocclusions among Schoolchildren from Southwestern Romania

Orthodontic System Modeled and Simulated with the Lingual Technique to Assess Tooth Forces

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