Orthodontic probability tables for black patients of African descent: Mixed dentition analysis

Schirmer, Ursus R.; Wiltshire, William A.

doi:10.1016/s0889-5406(97)70082-9

Cited by 64 publications

(74 citation statements)

References 14 publications

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“…The results of this study indicated that the [16] on Senegalese population where the Tanaka and Johnston equations overestimated the actual values. In contrast Schimer and Wiltshire [17] concluded that Moyers prediction tables underestimated black South African tooth size. Buwembo et al, [18] conducted a study on Ugandan population and concluded that Moyers probability tables could be used to predict tooth widths at specific percentile probabilities, but Tanaka and Johnston technique tends to overestimate the tooth widths.…”

Section: Discussionmentioning

confidence: 89%

Mixed Dentition Space Analysis in Kodava Population: A Comparison of Two Methods

Ramesh

Reddy

Palukunnu³

et al. 2014

JCDR

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Aims: To evaluate the reliability of Tanaka and Johnston and Moyer's (75th percentile) mixed dentition prediction methods in Kodava population sample, to formulate regression equations for predicting the mesiodistal widths of unerupted canines and premolars and to construct probability tables for the Kodava population.Settings and Design: Data was obtained from Kodava subjects visiting the clinics for routine dental check up. Materials and Methods:Dental models of 30 male and 30 female Kodava subjects (age range is 16 -23 yr) were used. Teeth measured included mandibular permanent incisors, maxillary and mandibular permanent canines, first and second premolars. Digital caliper calibrated to 0.01mm was used to record mesiodistal dimensions. The actual teeth measurements were then statistically compared with the predicted values derived from the Tanaka and Johnston's equations and Moyers probability tables at the 75 th percentile. Statistical Analysis Used:Descriptive statistics including means, standard deviations were calculated for the actual and predicted tooth sizes. Student's t-tests were performed to compare the differences between the measured mesiodistal widths of canine, first and second premolars and the predicted values derived from Moyers. Correlation and regression analysis were performed to formulate standard regression equations.Results: Tanaka and Johnston prediction equations overestimated the mesiodistal widths of permanent canines and premolars in both the arches. Moyers 75 th percentile also overestimated the actual measurements except for the maxillary arch in female subjects. The percentage of overestimation was more for Tanaka -Johnston prediction method than that of Moyers (75 th percentile). Correlation and regression analysis were performed between the predicted and actual tooth size and standard regression equations were developed for the Kodava population. Probability tables were also constructed from the data obtained.

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Section: Discussionmentioning

confidence: 89%

Mixed Dentition Space Analysis in Kodava Population: A Comparison of Two Methods

Ramesh

Reddy

Palukunnu³

et al. 2014

JCDR

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“…Different racial and ethnic differences in tooth sizes have been highlighted in several studies. 12,13,16,20,21 Because of the changing secular trends and the influence of sex on the mesiodistal diameter, there is need to reevaluate the applicability of the mixed dentition analysis in Himachal population.…”

Section: Discussionmentioning

confidence: 99%

“…Moyer's, (1973,1988) and Tanaka and Johnston, (1974) in other population groups, which concluded that both methods underestimated the tooth dimensions in the non-Caucasian samples. 12,13,14 Since the Himachal is lacking the formulation of such prediction tables for its own populations, keeping in view of the racial, geographical differences, this study was designed to evaluate the applicability of Nance (radiographic), Moyer's (non radiographic) and Tanaka and Johnston (non radiographic) methods in assessing the size of permanent canines and premolars in Himachal population children. The present study was conducted in the Department of Pedodontics & Preventive Dentistry of Himachal Dental College, Sundernagar, H.P.…”

Section: Introductionmentioning

confidence: 99%

Comparison And Correlation of Radiographic And Non Radiographic Methods of mixed Dentition Space Analysis With The Formulation of Linear Regression Equation In Children of Mandi District, Himachal Pradesh

Kahol¹,

Thakur²,

Gupta³

et al. 2017

IOSR JDMS

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“…The accuracy of this prediction method when applied to population groups other than white subjects is, however, questionable because it has been well established in the literature that mesiodistal tooth sizes vary considerably between different racial groups. [16,17] Bernabé and Flores-Mir developed multiple regression equations for Peruvian adolescents to forecast the size of unerupted teeth. [14] Several studies have been conducted to evaluate the applicability of mixed dentition space analysis in other population groups, [18][19][20][21][22][23] all of which disagreed with the use of Moyers and Tanaka and Johnston methods.…”

Section: Discussionmentioning

confidence: 99%

Comparative evaluation of three mixed dentition analyses and formulation of regression equations for north Indian population: A cross-sectional study

Juneja¹,

Mahajan²,

Kaur³

et al. 2015

Biomed J

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Background: The present study was undertaken to evaluate the accuracy of methods proposed by Tanaka and Johnston, Moyers, and Bernabé and Flores-Mir to forecast the mesiodistal dimensions of permanent canine and premolars in a North Indian population. Methods:Mesiodistal tooth dimensions were measured from study models representing 68 male and 68 female subjects (aged 12-16 years) of North Indian descent. The mesiodistal dimensions of the teeth were measured using a digital Vernier caliper (providing measurements to 0.01 mm accuracy). The measurements of canine and premolars were summed up and compared with those derived from Tanaka and Johnston equations, Moyers probability tables (75 th percentile), and Bernabé and Flores-Mir equations. Results:All the three methods exhibited overestimation of actual sum of permanent canine and premolars in both the arches and genders in this population. Because of the discrepancy observed, new regression analyses in the form of Y = A + B (X) were formulated similar to those proposed by Tanaka and Johnston originally, but separately for males and females. In males, the correlation coefficient between the sum of mesiodistal widths of mandibular incisors and the sum of widths of canine and premolars was 0.637 and 0.685 for maxilla and mandible, respectively. This value was 0.55 for maxilla and 0.64 for mandible in females. These values were found to be statistically significant. Conclusion: All the methods evaluated in the study were found to be inaccurate and they overestimate the mesiodistal widths of permanent canine and premolars in North Indian population. Revised linear regression equations were derived using the data obtained from this population. (Biomed J 2015;38:450-455)

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Orthodontic probability tables for black patients of African descent: Mixed dentition analysis

Cited by 64 publications

References 14 publications

Mixed Dentition Space Analysis in Kodava Population: A Comparison of Two Methods

Mixed Dentition Space Analysis in Kodava Population: A Comparison of Two Methods

Comparison And Correlation of Radiographic And Non Radiographic Methods of mixed Dentition Space Analysis With The Formulation of Linear Regression Equation In Children of Mandi District, Himachal Pradesh

Comparative evaluation of three mixed dentition analyses and formulation of regression equations for north Indian population: A cross-sectional study

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