Do Bolton’s ratios apply to a Spanish population?

Paredes, Vanessa; Gandía, José Luis; Cibrián, Rosa

doi:10.1016/j.ajodo.2005.03.020

Cited by 43 publications

(47 citation statements)

References 6 publications

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“…Most research on TSD investigated the effect of sexual dimorphism. They did not, however, demonstrate a common trend, with most of the studies finding no differences in the prevalence of TSD between males and females (4,7,(13)(14)(15)(16)(17)). There appears to be no published data on the prevalence of TSD in a representative sample of the Iranian population.…”

Section: Introductionmentioning

confidence: 93%

“…Appropriate proportions in tooth sizes are needed to achieve this. However, some discrepancies between tooth sizes are not apparent until the final stages of orthodontic treatment (3,4). Consequently, there have been several studies suggesting methods of defining and measuring tooth size discrepancy, but the best-known study of tooth size disharmony in relation to treatment of malocclusion was by Bolton in 1958 (5).…”

Section: Introductionmentioning

confidence: 99%

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Bolton s intermaxillary tooth size ratios among Iranian schoolchildren

Kachoei¹,

Ahangar-Atashi²,

Pourkhamneh³

2011

Med Oral

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Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Bolton s intermaxillary tooth size ratios among Iranian schoolchildren

Kachoei¹,

Ahangar-Atashi²,

Pourkhamneh³

2011

Med Oral

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“…It is logical to expect that differences in mesiodistal tooth sizes can directly affect Bolton ratios. Some studies claim that the Bolton ratio cannot be applied to populations other than the White one, and that there is a need to individualise each population with their own ratios (3,(13)(14)(15)(16) whilst others claim that it is indeed valid for other populations (3,11,17). There are only a few studies about tooth-size ratios on Peruvian or Spanish populations (11,14).…”

Section: Introductionmentioning

confidence: 99%

“…There are only a few studies about tooth-size ratios on Peruvian or Spanish populations (11,14). Paredes et al (15) obtained anterior and overall Bolton ratios different to that of Bolton1 and showed that the Bolton ratio could not be applied to the Spanish population. Others concluded that although some statistically significant differences in tooth size were found between Peruvians compared with White standards, they were not likely to be clinically significant (11).…”

Section: Introductionmentioning

confidence: 99%

Mesiodistal sizes and intermaxillary tooth-size ratios of two populations; Spanish and Peruvian. A comparative study

Paredes

Fd²,

Cibrián³

et al. 2011

Med Oral

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Introduction: Adequate tooth-size ratios are required to ensure the satisfactory outcome of orthodontic treatment. Consequently, various methods of measuring tooth-size ratios have been developed being the Bolton ratio the most commonly accepted, known and used one. This ratio depending directly on mesiodistal tooth size has been associated with different ethnic backgrounds. Some authors suggest the need for specific standards for every population. Objectives: The objectives of our study were; to measure and to compare mesiodistal tooth sizes and the Anterior and Overall Bolton ratios in two different populations, one Peruvian and the other Spanish with the same digital method. Material and Methods: The sample included 149 individuals composed of two groups; 99 Spanish (mean age 14.19), 65 being females and 34 males and 50 Peruvian (mean age 14.46), 18 being males and 32 females. The mesiodistal sizes of each of the patients were measured using a digital method and the Anterior and Overall Bolton ratios were calculated. Results: Tooth size does indeed involve a strong ethnic component, and the Anterior Bolton ratio is specific for each ethnic group. Conclusions: The conclusions are; tooth sizes of the Peruvian population were greater than those of the Spanish population. The Anterior Bolton ratio of Peruvian individuals was greater than that of the Spanish, whereas no differences were found for Overall Bolton ratio. These differences suggest the need for specific standards for the Spanish and Peruvian population.

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“…The posterior ratio and overall ratio are also used. Although each of these ratios has been studied extensively for a range of different racial [7][8][9][10] and malocclusion groups, [11][12][13][14][15][16] it is not clear whether their clinical application in these studies was appropriate. To clarify this issue, Tonn specifically analyzed the ratio of the upper and lower premolars.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive intermaxillary tooth width proportion of Bangkok residents

Manopatanakul

Watanawirun

2011

Braz. oral res.

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Proper occlusion depends on the correct width ratio between upper and lower teeth, known as Bolton's ratio. In fact, this ratio can be calculated for each pair of teeth from the central incisor to the first permanent molar. This set of ratios, known as comprehensive cumulative percentage ratios (CPRs), can be used not only to determine which tooth or teeth have a tooth width discrepancy, but can also enable the partial graphical analysis of tooth width discrepancy when there is agenesis of certain permanent teeth. Although CPRs have been calculated for Caucasians, tooth width is known to vary depending on racial origin. Therefore, a test of differences between racial groups should be carried out. If these ratios of the Caucasians and Bangkokians are significantly different, the ratio of the Bangkokians is recommended. The objective of this study was to measure tooth size disproportion for Thai patients and to calculate a corresponding set of CPRs. Thirty-seven pairs of dental models were made from a group of Bangkok residents with normal occlusion. Mesiodistal tooth width was measured for each model. The intra-and inter-examiner measurement errors were ascertained as insignificant (p > 0.05). CPRs were then calculated and compared to those derived from other studies. Ten of thirteen CPRs were significantly different from corresponding values derived from Caucasians. We conclude that tooth width ratios vary between different racial groups, and therefore that these should be calculated specifically for each patient racial group.

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Do Bolton’s ratios apply to a Spanish population?

Cited by 43 publications

References 6 publications

Bolton s intermaxillary tooth size ratios among Iranian schoolchildren

Bolton s intermaxillary tooth size ratios among Iranian schoolchildren

Mesiodistal sizes and intermaxillary tooth-size ratios of two populations; Spanish and Peruvian. A comparative study

Comprehensive intermaxillary tooth width proportion of Bangkok residents

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