Frequency and distribution of developmental anomalies in the permanent teeth of a Turkish orthodontic patient population

Kazanci, Fatih; Çelikoğlu, Mevlüt; Miloğlu, Özkan; Ceylan, İsmail; Kamak, Hasan

doi:10.1016/j.jds.2011.03.003

Cited by 45 publications

(68 citation statements)

References 28 publications

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“…This study found a significant prevalence of developmental dental anomalies in Brazilian orthodontic patients, with high prevalence in females, similar to the results found by other authors (5,6,13,19). Hypodontia was observed significantly more in women; other authors have also reported prevalence of microdontia in females, while hyperdontia and macrodontia were more frequent in males (13).…”

Section: Discussionsupporting

confidence: 90%

“…The patients' age ranged from 7-42 years old, with most of the dental anomalies diagnosed between 11 and 20 years, and this result was similar to that found in the literature (5,13,19). The time of tooth formation may interfere with the diagnosis of each anomaly.…”

Section: Discussionsupporting

confidence: 81%

“…Hypodontia was observed significantly more in women; other authors have also reported prevalence of microdontia in females, while hyperdontia and macrodontia were more frequent in males (13).…”

Section: Discussionmentioning

confidence: 65%

“…Hypodontia, hyperdontia, microdontia, macrodontia, taurodontism, transposition, impaction and ectopia have been reported in orthodontic populations (3,(5)(6)(7)9,12,13). There is no consensus among the various studies regarding the data on prevalence, distribution by gender, age and site of occurrence of the anomalies (5,6,13), highlighting the need for further reports in different populations.…”

Section: Introductionmentioning

confidence: 99%

“…There is no consensus among the various studies regarding the data on prevalence, distribution by gender, age and site of occurrence of the anomalies (5,6,13), highlighting the need for further reports in different populations. Impaction is significantly more frequent in Class I and Class III malocclusions in Turkish patients (5); while German patients have no anomalies associated with Class II division 1 and Class III malocclusions (11).…”

Section: Introductionmentioning

confidence: 99%

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Association between dental anomalies and malocclusion in Brazilian orthodontic patients

et al. 2016

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Developmental dental anomalies have been associated with different malocclusions in various populations. This study verified this association in Brazilian non-syndromic orthodontic patients. The prevalence of dental anomalies was evaluated by examining 2,052 pretreatment records of orthodontic patients. Panoramic radiographs, study designs, intraoral photographs and medical history were collected in order to identify hypodontia, hyperdontia, microdontia, macrodontia, taurodontism, transposition, impaction, and ectopia. Epidemiological data and classification of malocclusion were also obtained. Data were analyzed using chi-square and Fisherʼs exact test (P < 0.05), and the prevalence ratio was obtained from cases that had a significant association between anomaly and malocclusion. The results showed that 27.4% of the patients evaluated had some dental anomaly, and most of them were white women aged 11-20 years. Ectopia, microdontia, impaction, and hypodontia were more prevalent in patients with Class I malocclusion. Macrodontia was the only anomaly associated with Class II division 1. Impaction was associated with Class III malocclusion, at a 1.84-times higher prevalence. In conclusion, impaction was correlated with Class I malocclusion; macrodontia showed association with Class II division 1; and impaction and ectopia were associated with Class III malocclusion in Brazilian orthodontic patients. (J Oral Sci 58, 75-81, 2016)

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Association between dental anomalies and malocclusion in Brazilian orthodontic patients

et al. 2016

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Ectopic maxillary third molar in Early PleistoceneHomo antecessorfrom Atapuerca‐Gran Dolina site (Burgos, Spain)

Martín‐Francés

Martinón‐Torres

Pinillos

et al. 2020

American J Phys Anthropol

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Objectives Here we describe the case of an ectopic maxillary third molar (M3), preventing the eruption of the M2, in the individual H3 of the hominin hypodigm of level TD6.2 of the Early Pleistocene site of Gran Dolina (Sierra de Atapuerca, Spain). Materials and Methods The fossil remains from the TD6.2 level of the Gran Dolina site (about 170 specimens) are assigned to Homo antecessor. Different geochronological methods place these hominins in the oxygen isotopic stage 21, between 0.8 and 0.85 million years ago (Ma). The immature individual H3 is represented by an almost complete midface (ATD6‐69), preserving various teeth in situ. We used high‐resolution microtomograhy (mCT) to investigate the abnormal position of the left M3, virtually reconstruct M2, and M3 as well as assessing the development stage of these. Finally, we compare this case with extinct and extant populations. Results Based on the identified signs, we suggest that individual H3 suffered from a unilateral impaction of the M2 as a result of the ectopic position of the developing M3. Discussion We conclude that the most likely etiology for the ectopic position of the M3 is the lack of space in the maxilla. We discuss possible contributing factors, such as morphometric aspects of the maxilla and the early mineralization of the M3, to support the M2 impaction. Finally, due to the early age at death of this individual we did not identify any secondary lesion associated with the M2 impaction.

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Frequencies of Rare Incisor Variations Reflect Factors Influencing Precontact Population Relationships in Mexico and the American Southwest

Edgar

Willermet

Ragsdale

et al. 2015

Intl J of Osteoarchaeology

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Mexican prehistory is characterized by migration and population isolation in its earliest phase, followed by later inter‐population cultural interactions, such as politics and trade. While shared, common morphological variants are often informative about recent population events, rare trait variants have not been widely investigated to see whether they might be informative about earlier events. Here, we consider populations that show several rare variants at frequencies high enough to warrant such an investigation. Examining past population structure can help us understand population interactions across different periods of time, levels of migration, and population isolation/drift. Multiple‐origin populations may have more variation, including more and higher rates of rare traits. We examined maxillary lateral incisors in 1117 dentitions from 76 samples of Preclassic/Classic and Postclassic pre‐European contact Mexico and the American Southwest for the prevalence of rare lateral incisor variants. Variants observed included barrel, congenital absence, interruption groove, mesial marginal bending, peg, reduced, supernumerary, and talon teeth. The most common variant overall is interruption groove. Central Mexico, Huasteca, and the Lowland Yucatan region samples present the highest overall number of incisor variants. Higher frequencies of single unusual traits are commonly found in samples from smaller populations, while samples from larger population centres show a greater range of these rare variants. We investigated to see whether the pattern of rare incisor variant frequencies reflected early or later population history by comparing similarity/distance matrices and factor model matrices using Mantel tests and Generalized Procrustes analysis. Results show a weak relationship with the Postclassic period and shared migration/language and trade interaction models. We suggest that later cultural interactions have acted to mask earlier population history. Research on serial founder effects should be approached multiregionally and across time, to avoid missing inter‐region biological relationships. Copyright © 2015 John Wiley & Sons, Ltd.

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Frequency and distribution of developmental anomalies in the permanent teeth of a Turkish orthodontic patient population

Cited by 45 publications

References 28 publications

Association between dental anomalies and malocclusion in Brazilian orthodontic patients

Association between dental anomalies and malocclusion in Brazilian orthodontic patients

Ectopic maxillary third molar in Early PleistoceneHomo antecessorfrom Atapuerca‐Gran Dolina site (Burgos, Spain)

Frequencies of Rare Incisor Variations Reflect Factors Influencing Precontact Population Relationships in Mexico and the American Southwest

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