Mesiodistal Crown Dimensions of Permanent Dentition in Sudanese Population

Background: The purpose of this study was to gather normative data on the mesio-distal crown dimensions amongst adolescent population of Province II, Nepal, to make an accurate diagnosis and treatment planning in orthodontics. It will also be useful in various clinical disciplines of dentistry including basic dental and anthropological research. Materials and Methods: Samples were selected Full form OPD of M B Kedia Dental College, Birgunj, Nepal. Total numbers of participants were 120, out of which 60 males and 60 females were selected after initial examination aged between 11 to 23 years. Subjects with all permanent teeth erupted (except second and third molar) without any history of previous orthodontic treatment and with no dental anomalies were included in this study. The alginate impressions were made by the well trained dental surgeon. Digital vernier calliper providing measurements to ± 0.01millimeter(mm) was used to measure the mesio-distal dimension of all teeth. Results: The mean, range and standard deviation were calculated for the size of the teeth. Independent t-test was used to compare between male and female population. The significance level was set at p value <= 0.05. The population of Province II, Nepal shows greater sexual dimorphism in mesio-distal crown dimension which was exhibited by the maxillary molars (0.88 mm) followed by mandibular molars (0.38 mm). Similarly in anterior tooth segment the maxillary canines (0.29 mm) followed by the mandibular canines (0.27 mm). Conclusion: The mean mesio-distal crown dimensions of the permanent dentition of males were larger than that of females for each type of tooth except maxillary central and lateral incisor.

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Mesiodistal crown dimensions of the permanent dentition of a North Indian population

Indian Journal of Dentistry ◽

10.1016/s0975-962x(11)60005-1 ◽

2011 ◽

Vol 2 (2) ◽

pp. 16-20 ◽

Cited By ~ 1

Author(s):

Abhay Kumar Jain ◽

Nishita Garg ◽

Jaspal Singh ◽

Akram Ansari ◽

Sangamesh B

Keyword(s):

Indian Population ◽

Permanent Dentition ◽

North Indian Population ◽

Crown Dimensions

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Where’s the Variation? Variance Components in Tooth Sizes of the Permanent Dentition

Dental Anthropology Journal ◽

10.26575/daj.v16i3.157 ◽

2018 ◽

Vol 16 (3) ◽

pp. 84-94 ◽

Cited By ~ 13

Author(s):

Edward F. Harris

Keyword(s):

Biological Data ◽

Permanent Dentition ◽

Permanent Teeth ◽

Type I ◽

Residual Variance ◽

Race Difference ◽

Components Of Variance ◽

Tooth Type ◽

Shared Variance ◽

Crown Dimensions

Studies have shown that there are only a few canonical axes of tooth size variation in the permanent dentition. Despite the numerous measurements that might be taken (e.g., crown length and breadth of 32 teeth = 64 variables), most of the canonical structure is explained by 3 or 4 overarching axes of variation. This study used maximum likelihood components of variance analysis to determine where the major sources of statistical variation are among the crown dimensions in the permanent dentition. Mesiodistal and buccolingual crown dimensions were measured on all permanent teeth (excluding M3s and averaging sides) in 100 American whites and 100 American blacks, evenly divided by sex. The SAS program varcomp estimated the sources of variation across 7 aspects of the dentition, namely race, sex, arcade, tooth (incisor, canine, premolar, molar), position (mesial, distal), dimension (MD, BL), and a residual term. Most variation is shared; residual variance was just 21.8% of the total. Considering the six components of shared variance, the greatest (82.8%) was due to tooth type (I, C, P, M). In contrast, only 4.9% was attributable to the black-white race difference, which confirms results of other biological data that the preponderance of variation is within groups, not among them. More striking is the lack of variation between males and females (1.2%)—confirming the insensitivity of tooth crown dimensions for forensic purposes. Very little shared variance (0.6%) was due to tooth position, indicating that the mesial “pole” tooth that is metrically and morphologically more stable does not possess much more informational content statistically. Whether the tooth was maxillary or mandibular accounted for 6.9%. In a practical sense, the large variance due to tooth type implies that dental anthropologists commonly will want to include variables from all tooth types (I, C, P, M) rather than multiple measurements within a tooth type, since tooth type is the canonical axis of variation.

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Mesiodistal Crown Dimensions of the Permanent Dentition in a Nigerian Population

Dental Anthropology Journal ◽

10.26575/daj.v23i2.76 ◽

2018 ◽

Vol 23 (2) ◽

pp. 57-60 ◽

Cited By ~ 1

Author(s):

Emmanuel O. Ajayi ◽

Yetunde O. Ajayi ◽

Helen O. Oboro ◽

Nneka M. Chukwumah

Keyword(s):

Normative Data ◽

Permanent Dentition ◽

Permanent Teeth ◽

Tooth Size ◽

Significant Difference ◽

Nigerian Subjects ◽

Size Discrepancy ◽

Nigerian Population ◽

Tooth Size Discrepancy ◽

Crown Dimensions

Mesiodistal crown dimensions of the permanent dentition were assessed in a Nigerian population. The study sample consisted of 54 dental casts of Nigerian subjects (33 males; 21 females) with a mean age of 26.6 (sd = 2.1) years. The subjects had their permanent teeth present and fully erupted from first molar to first molar, no interproximal caries or restorations and no abnormal tooth sizes or shapes. Descriptive statistics are provided. Sex differences in the means and comparisons with the means from other population were evaluated using t-tests. Results revealed no statistically significant difference in mesiodistal crown dimensions between the sexes and no left to right side tooth size discrepancy in the sample. The study provides normative data on the mesiodistal crown dimensions of Nigerian subjects. Compared to African Americans, crown dimensions tended to be smaller in these Nigerians, especially in males.

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Mesiodistal crown dimensions of the permanent dentition in North Indian children

Journal of Indian Society of Pedodontics and Preventive Dentistry ◽

10.4103/0970-4388.28076 ◽

2006 ◽

Vol 24 (4) ◽

pp. 192 ◽

Cited By ~ 9

Author(s):

SP Singh ◽

A Goyal

Keyword(s):

Permanent Dentition ◽

Indian Children ◽

Crown Dimensions

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EVALUATION OF OCCURRENCE OF HYPERDONTIA IN NON-SYNDROMIC POPULATION FROM BIHAR REGION

International Journal of Medical and Biomedical Studies ◽

10.32553/ijmbs.v3i10.740 ◽

2019 ◽

Vol 3 (10) ◽

Author(s):

Dr. Minti Kumari ◽

Dr. Madhuri Kumari ◽

Dr Anurag Rai ◽

Dr. Navin Kumar

Keyword(s):

Panoramic Radiograph ◽

Permanent Dentition ◽

Dental Anomalies ◽

Supernumerary Teeth ◽

Panoramic Radiographs ◽

Future Studies ◽

Asian Populations ◽

Males And Females ◽

The Individual ◽

Clinical Records

It is evident that hyperdontia is more common in the permanent dentition than in the primary. There is a considerable difference between males and females in the prevalence of these teeth in permanent dentition; hyperdontia is twice as common in males as in females. However, this approximation varies in terms of location, other associating syndromes that may be present, and the ethnicity of the individual. In terms of ethnicity, it can be seen that hyperdontia is in fact less common in Caucasian than in Asian populations. There is evidence to show that an individual is more likely to have hyperdontia if other members of their family also have the condition. Hence the present study was planned for evaluation of occurrence of hyperdontia in non-syndromic population from Bihar Region. The present study was planned in Public Health Dentistry, Patna Dental College and Hospital, Patna, Bihar. Total 195 patients referred to Department of Dentistry were evaluated in the present study. Panoramic radiographs and clinical records of patients above the age of 18 years and without any syndromic features were selected for the study. All the radiographs were examined for the presence of supernumerary teeth, their location, morphology, and number. Morphologically, teeth were classified as conical, tuberculate, supplemental, and odontoma. Early diagnosis of dental anomalies can prevent some esthetic, orthodontic, and periodontal problems, and knowledge of the prevalence and distribution of the anomalies may help clinicians to the detection of these anomalies at early stages. Our study evaluated the prevalence of selected dental anomalies; future studies should investigate the prevalence of dental anomalies of all types. Keywords: Hyperdontia, non-syndromic, panoramic radiograph, supernumerary teeth, etc.

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Indicators of permanent teeth eruption in children of Tashkent city and comparative assessment with the data of peers of different Russian cities

Стоматология детского возраста и профилактика ◽

10.33925/1683-3031-2020-20-3-223-229 ◽

2020 ◽

Vol 20 (3) ◽

pp. 223-229

Author(s):

R. T. Kamilova ◽

J. A. Kamilov

Keyword(s):

Comparative Assessment ◽

Permanent Dentition ◽

Permanent Teeth ◽

Age And Gender ◽

Left Handed ◽

Regional Features ◽

Initial Stage ◽

The Republic ◽

And Gender ◽

The City

Relevance. Characteristics of eruption of secondary teeth is of diagnostic and prognostic interest, is the basis for implementation of targeted therapeutic and preventive measures among children. No research has ever been carried out in Uzbekistan to study an age and gender regional features of secondary teeth eruption. The aim is to determine the timing and symmetry of secondary teeth eruption in children of the city of Tashkent of the Republic of Uzbekistan and comparative assessment with the children of different cities of Russia.Materials and methods. 3,834 children between 3 and 17 years were conducted dental examination. A comparative analysis was made of the initial, intermediate and final periods of eruption of secondary teeth for children of Uzbekistan (Tashkent city) and Russia (Saratov, Izhevsk and Sergach).Results. In Tashkent children of both gender, in most cases, lower teeth were erupted before than their antagonists. In girls, teeth were erupted earlier than their male counterparts. At the initial stage of eruption, asymmetry was more pronounced in boys than in girls, while in the middle and final stages it was more pronounced in the opposite direction. Observed asymmetry of antimere’s teeth were indicated left-handed permanent dentition in boys and right-handed in girls. Children of Tashkent city were observed permanent dentition in one group of teeth 1-16 months earlier, and in others – 1-24 months later than their peers in Russian cities. Revealed differences were more pronounced among boys than among girls. Children in Tashkent differed more from their peers in Sergach and less from those in Izhevsk. Conclusions. Regional peculiarities of permanent dentition in children of Tashkent city and revealed expressed differences with indicators of Russian children are the basis for development of separate age and gender normative assessment permanent dentition tables for children of Uzbekistan.

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