Craniofacial morphology in individuals with increasing severity of hypodontia

Miševska, Cvetanka Bajraktarova; Kanurkova, Lidija; Valjakova, Emilija Bajraktarova; Georgieva, Silvana; Bajraktarova, Bona; Georgiev, Zlatko; Ivkovska, Ana Sotirovska

doi:10.5937/sejodr3-15218

Cited by 3 publications

(5 citation statements)

References 28 publications

(24 reference statements)

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“…tia severity increased, ANB reduced; therefore, it was concluded that patients with hypodontia tended toward a Class III skeletal relationship. 2,9,10,18,26 Meanwhile, Bassiouny et al 30 studied a sample of patients with congenitally missing maxillary lateral incisors and proved them to have a significant tendency to develop a Class III skeletal relationship with reduced ANB and Wits. In the present study, chin protrusion, measured by Pog-NB, was significantly increased in postpubertal patients with hypodontia, indicating that patients with hypodontia appeared to have a more prominent chin.…”

Section: Discussionmentioning

confidence: 99%

“…Craniofacial morphology was described by a customized cephalometric analysis that included the most frequently used cephalometric measurements from previous studies, comprising 10 angular and 7 linear measurements and 2 derived proportions. 1,2,10,18,21,[26][27][28] These measurements covered the maxillary, mandibular, and maxillomandibular skeletal characteristics, vertical relationship, and soft See Table 1 for definitions of measurement.…”

Section: Data Collectionmentioning

confidence: 99%

“…Hypodontia, or congenitally missing teeth, is one of the most prevalent developmental disorders characterized by the congenital absence of one or more teeth, excluding the third molar. [1][2][3] The prevalence of hypodontia varies from 0.3-13.3%, 3,4 depending on sex, ethnicity, geographical regions, and dentition type. Females have been reported to have a slightly higher prevalence than males, with a ratio of 1.37:1, and hypodontia was more common in deciduous dentition than in permanent dentition.…”

Section: Introductionmentioning

confidence: 99%

“…Nonsyndromic hypodontia is an isolated trait that only involves congenitally missing teeth, whereas syndromic hypodontia can be associated with a cleft lip and palate or more than 50 craniofacial syndromes. 2,9 Based on the number of missing teeth, hypodontia can be classified into different severities: mild (one or two missing teeth), moderate (three to five missing teeth), and severe (six or more missing teeth). 10,11 It is generally agreed that hypodontia may occur due to genetic regulation and environmental factors.…”

Section: Introductionmentioning

confidence: 99%

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Association between the severity of hypodontia and the characteristics of craniofacial morphology in a Chinese population: A cross-sectional study

Xiong

Liu

et al. 2023

Korean J Orthod

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Objective: To investigate craniofacial differences in individuals with hypodontia and explore the relationship between craniofacial features and the number of congenitally missing teeth. Methods: A cross-sectional study was conducted among 261 Chinese patients (males, 124; females, 137; age, 7-24 years), divided into four groups (without hypodontia: no teeth missing, mild: one or two missing teeth, moderate: three to five missing teeth, severe: six or more missing teeth) according to the number of congenitally missing teeth. Differences in cephalometric measurements among the groups were analyzed. Further, multivariate linear regression and smooth curve fitting were performed to evaluate the relationship between the number of congenitally missing teeth and the cephalometric measurements. Results: In patients with hypodontia, SNA, NA-AP, FH-NA, ANB, Wits, ANS-Me/N-Me, GoGn-SN, UL-EP, and LL-EP significantly decreased, while Pog-NB, AB-NP, N-ANS, and S-Go/N-Me significantly increased. In multivariate linear regression analysis, SNB, Pog-NB, and S-Go/N-Me were positively related to the number of congenitally missing teeth. In contrast, NA-AP, FH-NA, ANB, Wits, N-Me, ANS-Me, ANS-Me/N-Me, GoGn-SN, SGn-FH (Y-axis), UL-EP, and LL-EP were negatively related, with absolute values of regression coefficients ranging from 0.147 to 0.357. Further, NA-AP, Pog-NB, S-Go/N-Me, and GoGn-SN showed the same tendency in both sexes, whereas UL-EP and LL-EP were different. Conclusions: Compared with controls, patients with hypodontia tend toward a Class III skeletal relationship, reduced lower anterior face height, flatter mandibular plane, and more retrusive lips. The number of congenitally missing teeth had a greater effect on certain characteristics of craniofacial morphology in males than in females.

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Section: Discussionmentioning

confidence: 99%

Section: Data Collectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Association between the severity of hypodontia and the characteristics of craniofacial morphology in a Chinese population: A cross-sectional study

Xiong

Liu

et al. 2023

Korean J Orthod

View full text Add to dashboard Cite

show abstract

“…However, many human and animal studies found that dental anomalies, mainly missing teeth, and craniofacial alterations, could share common genetic factors [39][40][41][42], such as mutations in MSX1, PAX9, TGF-α and FGF family genes [42,43]. Interestingly, some of these genetic mutations were associated with missing specific tooth types.…”

Section: Missing Teethmentioning

confidence: 99%