Intraoral factors affecting case assessment

Moyers, Robert E.; Harvold, Egil P.; Jenkins, Hilger Perry; Shultis, K.; Crouch, J.Thomas

doi:10.1016/0002-9416(54)90031-7

Cited by 3 publications

(7 citation statements)

References 8 publications

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“…Orthodontic treatment in the mixed dentition is largely dependent on an accurate space analysis [ 1 , 2 ]. This analysis is one of the important criteria in determining whether a treatment plan should involve serial extraction, guidance of eruption, space maintenance, space regaining, or merely periodic observation [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…Tooth size predictions of unerupted permanent canines and first and second premolars are critical aspects in mixed dentition space analysis. Three main approaches have been used to estimate the mesiodistal crown widths of permanent canines and premolars in mixed dentition patients: Measurement of the unerupted teeth using radiographs [ 5 – 7 ], Application of regression equations that relate the mesiodistal widths of erupted teeth to those of unerupted teeth [ 2 , 8 , 9 ], A combination of measurements from erupted teeth and radiographs of unerupted teeth [ 10 , 11 ]. …”

Section: Introductionmentioning

confidence: 99%

“…Application of regression equations that relate the mesiodistal widths of erupted teeth to those of unerupted teeth [ 2 , 8 , 9 ],…”

Section: Introductionmentioning

confidence: 99%

“…Moyers' analysis uses the sum of the widths of the mandibular incisors to predict the sum of both the mandibular and maxillary canines and premolars at various probability levels (5% to 95%), initially as combined tables for both sexes [ 1 ] and later as separate tables for either sex [ 2 ]. Neither the sample nor the regression equations, upon which Moyers' tables [ 1 , 2 , 8 ] are based, have been described in the literature. However, Moyers recommended its use at the 75% probability level, which is thought to err on the side of overestimating crowding.…”

Section: Introductionmentioning

confidence: 99%

“…However, Moyers recommended its use at the 75% probability level, which is thought to err on the side of overestimating crowding. Despite the questionable reliability, both Moyers' [ 2 ] and the Tanaka and Johnston's [ 9 ] approaches are still widely accepted because they do not require radiographs and are simple and quick to perform. Thus, these methods are, arguably, more readily applied by a spectrum of clinicians [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

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Prediction of unerupted canines and premolars in a Syrian sample

Burhan

Nawaya

2014

Prog Orthod.

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BackgroundThe current study aimed to evaluate the applicability of the methods of Moyers and of Tanaka and Johnston to estimate the mesiodistal widths of permanent canines and premolars in Syrian individuals, to determine whether the predicting equations differ by sex, and to develop more accurate regression equations using various teeth groups as predictors.MethodsA total of 670 pretreatment pairs of casts belonging to 342 female patients and 328 male patients were selected from the archives of orthodontic clinics in Damascus University and Al-Baath University. All relevant teeth were measured to the nearest 0.01 mm. Paired t tests were used to test the applicability of the Moyers method and the Tanaka and Johnson equation on Syrian individuals. New regression equations were constructed.ResultsThe predicted values of permanent canines and premolars derived from Moyers' charts at the 50th percentile levels tended to underestimate the actual values for the male subjects but were comparable to the actual values for the female subjects. However, the predicted values derived at the 75th percentile levels tended to be comparable to the actual values for the male subjects and to overestimate the actual values for the female subjects. The predicted values calculated by Tanaka and Johnston's equations tended to overestimate the actual values in both study groups.ConclusionsThe Moyers method was more accurate for the mixed dentition analysis for Syrian individuals. However, the proper percentile level is determined by sex. The use of the equations constructed using the Syrian sample is advised.

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Section: Introductionmentioning

confidence: 99%