Assessment of hypodontia in the Turkish patients referring to the orthodontic clinic: A retrospective study

Uzuner, Deniz; Celik, Meltem Melik; Toy, Ebubekir; Türkdönmez, Candan Okay

doi:10.4103/1305-7456.119057

Cited by 6 publications

(10 citation statements)

References 29 publications

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“…The data from the present study and their comparison with other studies [ 33 ] [ 34 ] [ 35 ] [ 36 ] [ 37 ] [ 38 ] shows that the prevalence of Hyperdontia and Hyperdontia is found in different frequencies in many countries of the world and even within the same country among different ethnic or regional groups.…”

Section: Discussionsupporting

confidence: 67%

Dental Number Anomalies and Their Prevalence According To Gender and Jaw in School Children 7 To 14 Years

Sejdini¹,

Çerkezi²

2018

Open Access Maced J Med Sci

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OBJECTIVES:This study aimed to find the prevalence of Hypodontia and Hyperdontia in different ethnicities in patients from 7 to 14 years old.MATERIAL AND METHODS:A group of 520 children were included aged 7 to 14 years, only the children who went to primary schools. Controls were performed by professional people to preserve the criteria of orthodontic abnormalities evaluation. The data were recorded in the individual card specially formulated for this research and all the patients suspected for hypodontia and hyperdontia the orthopantomography for confirmation was made. The data were analysed using descriptive statistical analysis using χ2 test for the significant difference for p ˂ 0.05 and Fisher test for p < 0.05.RESULTS:Hypodontia, not counting the patients with missing third molars was found in 18 patients researched or 3.46%. The most commonly missing teeth were the second lower premolars, the second upper premolars, second upper lateral incisors followed by the lower incisors. Hyperdontia not including the third molars was found in 4 cases of the participants or 0.76% from which the most frequent atypical tooth mesiodens and one case of bilateral hypodontia of a lateral upper incisor with typical shape and size. But there were no significant differences when tested between genders and jaws.CONCLUSION:The prevalence we found is similar to the prevalence in the region. Our findings indicate that there is a difference between the genders in the prevalence of hypodontia, but without statistical significance, while for hyperdontia we can’t see such a difference between the sexes.

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Section: Discussionsupporting

confidence: 67%

Dental Number Anomalies and Their Prevalence According To Gender and Jaw in School Children 7 To 14 Years

Sejdini¹,

Çerkezi²

2018

Open Access Maced J Med Sci

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“…The frequency and percentage distribution of missing teeth in relation to age groups indicate that it does not change; however, there was a slight increase in 13-14 years students, with no sex variation, table (5).…”

Section: Resultsmentioning

confidence: 92%

“…In Europeans, 5.5% fail to develop one or more permanent teeth. In Turkish patients, it constitutes 5% (5) . However, in Iranian patients the prevalence was approximately 10.9% the most frequent congenitally missing teeth was mandibular second premolars (6) .…”

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confidence: 99%

Prevalence of missing permanent teeth in 9-14 years dental patients in Sulaimani city - Radiographic study

Jalal¹

2015

SDJ

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Dental agenesis of one or more teeth is the mostly common anomaly of dental development in man (1). Various definitions are used in the literature to describe this phenomenon. Anodontia denotes complete dental agenesis. Oligodontia referred to patients with the absence of six or more teeth, apart from the third molars. Hypodontia is used to indicate the congenital absence of one to six teeth (excluding third molars) (2,3) .

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“…Hypodontia, also known as "selective tooth agenesis" or "congenital tooth absence," is the condition in which one to six teeth excluding the third molars are congenitally missing. 1,2 It is the most common developmental anomaly in humans with a reported range of 4.4% to 13.4%, 2,3 occurring more commonly among females. 2,3 The exact etiology of hypodontia is unknown, but it is multifactorial in nature [4][5][6] and can be affected by genetic and environmental factors.…”

Section: Introductionmentioning

confidence: 99%

“…2,3 The exact etiology of hypodontia is unknown, but it is multifactorial in nature [4][5][6] and can be affected by genetic and environmental factors. 1,2,6,7 It may arise as part of a recognized genetic syndrome or more commonly as a solitary Eur J Dent 2019;13:574-580 non-syndromic anomaly. 7 Nonsyndromic hypodontia most commonly affects the permanent dentition, with the mandibular second premolars having the highest incidence, followed by the maxillary lateral incisors.…”

Section: Introductionmentioning

confidence: 99%

Root Dimensions in Patients with Mild Hypodontia and a Control Group

et al. 2019

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Objectives The aim of this study was to compare root dimensions (length and mesiodistal widths) between subjects with mild hypodontia and an age- and sex-matched control group. Materials and Methods Root dimension measurements of all permanent teeth excluding third molars were made on standardly taken orthopantomograms of 50 individuals (25 hypodontia and 25 controls) attending the University of Sharjah Dental Hospital. The length and two mesiodistal widths were measured for each fully formed root. The length of the root was measured digitally by drawing a line from the midpoint and bisecting the mesiodistal cemento-enamel junction (CEJ) of the tooth and extended to its apex. The mesiodistal widths of each root were measured at the cervical region and at half way of and perpendicular to the length of the root. Statistical Analysis Two sample t-tests were used to compare root dimension measurements between the hypodontia and control groups. Results There were no significant differences between genders with regard to root length or widths measurements, and therefore genders were combined for further analysis. Patients with hypodontia have significantly shorter root lengths than controls for the upper central incisors, upper canines, first premolars, and lower first molars (p < 0.05). Similarly, root width at the midpoint of the root was found to be less in hypodontia group than that in controls for the upper central incisors, lower first premolars, upper first molars, and all second premolars (p < 0.05). Similar pattern of differences was found with regard to the root width at the cervical region (p < 0.05). Conclusions Patients with hypodontia have shorter and narrower roots of the whole permanent dentition except the upper lateral incisors, lower incisors, lower canines, and all second molars when compared with controls. In effect, this may affect the orthodontic treatment planning and implant placement.

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Assessment of hypodontia in the Turkish patients referring to the orthodontic clinic: A retrospective study

Cited by 6 publications

References 29 publications

Dental Number Anomalies and Their Prevalence According To Gender and Jaw in School Children 7 To 14 Years

Dental Number Anomalies and Their Prevalence According To Gender and Jaw in School Children 7 To 14 Years

Prevalence of missing permanent teeth in 9-14 years dental patients in Sulaimani city - Radiographic study

Root Dimensions in Patients with Mild Hypodontia and a Control Group

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