A Review on Comparison of Tooth Size Discrepancies among Angle\'s Class I, II, and III Malocclusion: Is There a Significance?

Jabri, Mehjabeen A; Wu, Size; Zhang, Yaoyuan; Ma, Junqing; Wang, Lin

doi:10.5005/jp-journals-10024-2615

Cited by 7 publications

(6 citation statements)

References 17 publications

(28 reference statements)

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“…The result of the study shows the anterior and overall Bolton ratio through class I, II and III too, where no significant difference had been observed, this result was similar to study done by and Al-Khateeb & Abu Alhaija 24 , Jabri et al, 25 in Nanjing, China, Endo et al, 26 among a Japanese peoples and Basaran et al, 27 observed no considerable difference for both ratios between the groups of malocclusion, which are in disagreement with the results of Wędrychowska-Szulc et al, 13 that revealed significant differences of anterior and overall Bolton ratio among malocclusion classes for males and females, Othman and Harradine 28 and Nie and lin 29 showed the same result.…”

Section: Discussionsupporting

confidence: 87%

Bolton’s Ratios for Patients with Different Angle’s Malocclusions Seeking Orthodontic Treatment in Kurdistan Region

Al-Hamidi¹,

Jasim²,

Dhayef³

2021

RDENTJ

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Aims:The study aimed to evaluate the overall and anterior Bolton's ratio between females and males of the Kurdistan population, and then compare it to Bolton's original ratio . Materials and methods: This crosssectional study consisted of 160 orthodontic models (80 males, 80 females) that randomly selected from the Kurdistan Iraq population for patients seeking orthodontic treatment, ranging in age from 16 to 34 years. After evaluating the width of each tooth separately using digital caliper, anterior and total ratios were calculated by a formula presented by Bolton . Results: The study's overall Bolton's ratio was significantly higher for both females and males at 92.54 and 91.73, respectively, when compared to that of Bolton's original value of 91.3; the anterior Bolton's ratio was also significantly higher at 79.97 for males & 79.22 for females, when compared to that of Bolton's original value of 77.2. The high significant difference was observed between the current study and Bolton's ratios, with p-value of 0.01, whereas no significant gender differences in any malocclusion group have been found . Conclusions: No gender effect on Bolton's ratios among all Angle's classification types.

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Section: Discussionsupporting

confidence: 87%

Bolton’s Ratios for Patients with Different Angle’s Malocclusions Seeking Orthodontic Treatment in Kurdistan Region

Al-Hamidi¹,

Jasim²,

Dhayef³

2021

RDENTJ

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“…The method of assessing tooth-size discrepancies proposed by Bolton 17 was adopted for the current study due to its accuracy and long-standing acceptance by the dental profession. 4 It is possible that conventional plaster casts may not accurately reproduce exact tooth size, which is a likely limitation of this study. Nevertheless, carefully prepared impressions and plaster casts should have negligible size errors.…”

Section: Discussionmentioning

confidence: 95%

“…A TSD contributes to an altered relationship between the dental arches because accepted overbite, overjet and interdigitation require a certain proportional size relationship between the teeth. 3,4 Successful orthodontic treatment with regard to a functional and aesthetic occlusion also, in part, depends on an accurate TSD diagnosis and intervention. 1,2 REIS, MARAÑÓN-VÁSQUEZ, MATSUMOTO, BARATTO-FILHO, SASSO STUANI, PROFF, KIRSCHNECK AND KÜCHLER Tooth size is determined at the commencement of the dental development stage.…”

Section: Introductionmentioning

confidence: 99%

Single nucleotide polymorphisms in odontogenesis-related genes associated with tooth-size discrepancy

Reis

Marañón‐Vásquez

Matsumoto

et al. 2023

Australasian Orthodontic Journal

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Introduction: The present study aimed to determine the association between single nucleotide polymorphisms (SNPs) in RUNX2, SMAD6, BMP2, and BMP4 genes in relation to tooth-size discrepancy (TSD). Methods: A cross-sectional study of patients undergoing orthodontic treatment measured the mesiodistal width of permanent teeth from pretreatment dental casts. Sixty-two patients were included in the study and TSD was assessed according to the Bolton analysis. The patients were allocated into a control group (without a TSD), an anterior excess group and an overall excess group. Genomic DNA was extracted from saliva samples, and SNPs previously associated with tooth size were evaluated using a real-time polymerase chain reaction (PCR) system. The Fisher exact test was performed to compare genotype and allele frequencies at an α = 0.05. An Odds Ratio (OR) and 95% Confidence Interval (95% CI) were calculated. Results: The rs59983488 SNP in the RUNX2 gene was significantly related to the presence of anterior mandibular tooth-size excess in allele (T allele: p<0.001; OR = 11.74; 95% CI =2.61–55.80), and genotype models (GT genotype: p = 0.002; OR = 12.69; 95% CI = 2.47–64.83). The rs3934908 SNP in the SMAD6 gene was significantly associated with the presence of an overall maxillary tooth-size excess in allele (T allele: p < 0.001) and genotype models (TT genotype: p = 0.010). Conclusion: The present results suggest that SNPs in RUNX2 (rs59983488) and SMAD6 (rs3934908) genes may be associated with the presence of tooth-size excess.

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“…Полностью прозрачные пассивные самолигирующие брекеты обладают низким трением и малыми дозами нагрузки при более эффективном перемещении зубов [39,40]. Оптимизация лечения лиц с зубочелюстными аномалиями и наличием деформаций сформированного прикуса требует применения комплексного подхода [41].…”

Section: Wwwjscientiaorgunclassified

Malocclusion: Modern Approaches to Diagnostics and Treatment

Galstyan

Тимофеев

2021

Juvenis scientia

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The article presents an overview of modern approaches to the identification and justification of the choice of management tactics for patients with malocclusion and crowding of teeth. The questions of the etiology and pathogenesis of malocclusion that occurred both in early childhood and in older age are highlighted. There is a high prevalence of malocclusion in the population, which creates a number of medical problems (tooth erasability and mobility, changes in the upper-mandibular joint, abnormalities of the biomechanics of the lower jaw), but also a number of aesthetic and psychological problems. The classification of malocclusion anomalies is given. The article describes the currently relevant visualization methods for diagnosing malocclusion, which allow us to assess the severity of changes and adequately select the optimal method of correction, including orthopantomography and telerentgenography. The application of the calculation method is justified, which allows to establish the fact of a lack of space in the dental arch and to identify the need for its increase in case of crowding of teeth. Indications for extraction of teeth for correction of malocclusion have been determined. The factors determining the success of corrective treatment and the stability of the achieved results are listed.

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A Review on Comparison of Tooth Size Discrepancies among Angle\'s Class I, II, and III Malocclusion: Is There a Significance?

Cited by 7 publications

References 17 publications

Bolton’s Ratios for Patients with Different Angle’s Malocclusions Seeking Orthodontic Treatment in Kurdistan Region

Bolton’s Ratios for Patients with Different Angle’s Malocclusions Seeking Orthodontic Treatment in Kurdistan Region

Single nucleotide polymorphisms in odontogenesis-related genes associated with tooth-size discrepancy

Malocclusion: Modern Approaches to Diagnostics and Treatment

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