Ein zahngrößen- und gesichtsbreitenbezogener Zahnbogenindex

Sergl, H. G.; Reinhardt, R; Zentner, Andrej; Schmidt, Joana

doi:10.1007/bf02341484

Cited by 5 publications

(3 citation statements)

References 5 publications

(3 reference statements)

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“…A weak correlation was found between the bizygomatic width and both anterior and posterior arch widths. This finding was not consistent with that reported by some researchers [24], where they found a strong correlation between the zygomatic arch width and posterior dental arch width of maxilla. Their analysis was based on the data obtained from the models and anthropological measurements of 50 adult German subjects with fairly eugnathic dentition, and their dental arch widths showed a perfect correlation with Pont's Indices.…”

Section: Knowledge Of Dam (Dental Arch Measurement)contrasting

confidence: 99%

The Maxillary Arch and Cephalometric Measurements: Comparing Ethnic Malays and Ethnic Chinese in Malaysia

Thu¹,

Winn²,

Jayasinghe³

et al. 2015

IJAR

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A cross-sectional study was conducted to compare maxillary arch and head measurements between ethnic Malays and Chinese. Mean ages were 23.5 years (Malay) and 21.1 years (Chinese), and both groups were brachycephalic with the cephalic index 86.4 for Malay and 85.9 for Chinese which is not significantly different between them. Means of anterior arch width (AAW), posterior-arch-width (PAW) and arch-length were significantly different between two groups. AAW and PAW were significantly different from their corresponding indices for Malays but not for Chinese. The Pont's and Korkhaus' Indices could not be applied to the Malays but moderately to the Chinese.

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Section: Knowledge Of Dam (Dental Arch Measurement)contrasting

confidence: 99%

The Maxillary Arch and Cephalometric Measurements: Comparing Ethnic Malays and Ethnic Chinese in Malaysia

Thu¹,

Winn²,

Jayasinghe³

et al. 2015

IJAR

View full text Add to dashboard Cite

show abstract

“…Some professionals support the application of Pont's index for the prediction of arch widths, 7,8 while others believe that its use should be avoided because of inherent inaccuracies. 1,9,11,20,[23][24][25][26] Pont suggested that the reliability of the index should be tested in other populations. Additional studies have supported his proposed procedure for arch width predictions, 8,24 whereas others have questioned the reliability of Pont's index for clinical purposes.…”

Section: Discussionmentioning

confidence: 99%

Application of Pont’s index to a Pakistani population: a digital stereomicroscopic study

Shahid

Alam

Khamis

et al. 2017

Australasian Orthodontic Journal

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To investigate the applicability of Pont's index for predicting maxillary and mandibular dental arch widths in a Pakistani population. Materials and methods: A Hirox digital stereomicroscope (SM) (HIROX KH7700 Japan) was used to construct digital models of fabricated plaster casts. Gender differences in the measured totals of the incisor widths, arch widths and expansion indices were evaluated. Pont's correlations were computed between measured and predicted arch widths. An analysis of variance (ANOVA) was applied to determine the differences between arch length and arch perimeter groups. Results: Males had significantly larger mean values for the sums of the incisors, arch widths and expansion indices compared with females (p ≤ 0.05). There were significant differences observed between the large and small, average and small and the average and large arch length groups (p ≤ 0.05) in the maxilla, while a significant difference was observed only between the large and small arch length groups in the mandibular arch. Pont's index predictions were consistently less than the actual interpremolar and intermolar arch widths for both genders. The dissimilarity in the predictions for interpremolar width averaged -4.33 mm for males and -4.21 mm for females while the intermolar width averages were -4.93 mm for males and -4.92 mm for females. Conclusion:The results indicated that Pont's index should not be applied to the Pakistani population. Maxillary and mandibular arch length groups and arch perimeters should be carefully investigated before applying any prediction formulae.

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“…[ 17 18 19 ] While others believe that it should not be used for the prediction of arch dimensions. [ 2 6 7 8 9 20 ] As Pont's index is the average ratio hence it could not be used as a true predictor of the arch width for each individual. Thus mechanical arch development may not be steered by Pont's index.…”

Section: Discussionmentioning

confidence: 99%

Cone-beam computed tomography evaluation of Pont′s index predictability for Malay population in orthodontics

et al. 2015

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Introduction:In orthodontic treatment, three-dimensional (3D) dental casts has a significant role in diagnosis and treatment planning. The aim of this study was to evaluate Pont's index predictability in orthodontics.Materials and Methods:Premolar arch width, molar arch width and mesiodistal width of the maxillary incisors were measured three-dimensionally to assess shape of dental arches. The data source was cone beam computed tomography (CBCT) high volumetric data acquisitions from Malay ethnic background. Arch widths were measured and recorded from 53 subjects (32 male and 21 female with the mean age, 25.81), both the maxillary and mandibular arches, to obtain CBCT high volumetric data. All measurements were obtained through CBCT Planmeca Romexis TM Software 2.3.1.R (Helsinki, Finland).Results:Pont's formula overestimated the upper and lower interpremolar distance, with mean differences of 8.35 ± 3 mm and 12.02 ± 3.20 mm, respectively. Furthermore, the formula overestimated the upper and lower intermolar distance, with mean differences of 7.87 ± 3 mm and 16.14 ± 5.86 mm, respectively.Conclusions:The results indicate that Pont's index is not practical for use with the Malaysian population since the index overestimated interpremolar and intermolar widths. This raises questions whether the index is a true predictor of arch width measurements.

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Ein zahngrößen- und gesichtsbreitenbezogener Zahnbogenindex

Cited by 5 publications

References 5 publications

The Maxillary Arch and Cephalometric Measurements: Comparing Ethnic Malays and Ethnic Chinese in Malaysia

The Maxillary Arch and Cephalometric Measurements: Comparing Ethnic Malays and Ethnic Chinese in Malaysia

Application of Pont’s index to a Pakistani population: a digital stereomicroscopic study

Cone-beam computed tomography evaluation of Pont′s index predictability for Malay population in orthodontics

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