Soft tissue cephalometric analysis applied to regional Indian population

Upadhyay, Jay S; Maheshwari, Sandhya; Verma, Sanjeev; Zahid, Syed Naved

doi:10.4103/0975-5950.127644

Cited by 9 publications

(13 citation statements)

References 15 publications

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“…[18][19][20] Similarly, ethnicity has been found to play no role in the tooth proportion. 6 This study showed that males tend to have long lower facial height as compared to female which is supported by similar findings in Turkish, 21 White, 22 Iraqis, 23 Central Indians, 24 North Indians 25 and South Indians. 26 Golden ratio has been widely studied in dentistry and it is believed that this ratio exists between maxillary lateral to central incisor and canine to lateral incisor.…”

Section: Discussionsupporting

confidence: 76%

Analysis of maxillary anterior teeth proportion in relationship with lower facial height and malocclusion

Gyawali

Singh

2017

J Coll Med Sci-Nepal

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Background & Objectives: Maxillar y anter ior tooth to tooth proportion has a special value in dental esthetics. This study aimed to assess the apparent proportion of maxillary anteriors and possible association with lower anterior facial height and malocclusion type. Materials & Methods: One-hundred and sixty samples with well aligned maxillary dentition were selected and the lower anterior facial height was measured with digital caliper. Molar relationship was examined and intraoral frontal photograph was taken for digital measurement of tooth proportion. The ratio of maxillary canine to lateral and lateral to central incisors were measured and compared between gender and the sides. These ratios were further compared among various malocclusion type using ANOVA and its association with lower anterior facial height was evaluated with Pearson's correlation. Results: Most of the samples had Class I molar relationship (70%) followed by Class II (23%) and Class III (7%). The mean lower anterior facial height was 62.82mm and ratio of maxillary lateral to central incisor and canine to lateral incisor was 0.68 and 0.76 respectively. No statistically significant difference was found when the ratio was compared between the gender and the sides. These ratios were statistically different from the golden ratio and has no significant correlation with lower anterior facial height. These mean ratios were also found similar across the malocclusion type. Conclusion: Ratio of appar ent dimension of maxillar y canine to lateral incisor and lateral to central incisor was different from the golden ratio and showed no association with lower anterior facial height and malocclusion type.Key words: Golden pr opor tion; malocclusion; lower anter ior facial height; tooth proportion Citation: Gyawali R, Singh VP. Analysis of maxillar y anter ior teeth pr opor tion in r elationship with lower facial height and malocclusion. JCMS Nepal. 2017;13(2):262-7.

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Section: Discussionsupporting

confidence: 76%

Analysis of maxillary anterior teeth proportion in relationship with lower facial height and malocclusion

Gyawali

Singh

2017

J Coll Med Sci-Nepal

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“…Cephalometric values of previously described analyses should not be applied to different populations, even when the evaluated patients have good occlusion and good facial aesthetics (16,18,19). Many authors have developed analyses adapting cephalometric values of previous analyses (14)(15)(16)(17)(18). In this study, it may be inferred that the cephalometric patterns of North-American population do not represent correctly the facial features of the evaluated sample.…”

Section: Discussionmentioning

confidence: 93%

“…The cephalometric analyses are performed using standards and patterns from data analysis obtained by lateral cephalograms of individuals in specific populations, considered with good aesthetics and good occlusion (5,6). Thus, the diagnosis obtained by them may not correspond to normal occlusion or aesthetics of patients in other populations (15)(16)(17)(18). Cephalometric values of previously described analyses should not be applied to different populations, even when the evaluated patients have good occlusion and good facial aesthetics (16,18,19).…”

Section: Discussionmentioning

confidence: 99%

Accuracy of Two Cephalometric Analyses in the Treatment of Patients with Skeletal Class III Malocclusion

Dantas¹,

Carvalho

Oliveira

et al. 2015

Braz. Dent. J.

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The aim of the present study was to compare the treatment plan outlined from the diagnosis obtained by two different cephalometric analyses with the clinical decision made for surgical treatment of patients with skeletal Class III malocclusion. For this purpose, 82 skeletal Class III patients were evaluated, divided into three groups according to the surgical procedure performed for dentofacial deformity correction. Their preoperative cephalometric radiographs were submitted to McNamara and Steiner cephalometric analyses. The association of variables was evaluated by Kappa correlation (α=5%). The agreement between indication of surgical procedures performed based on clinical decision and surgical treatment indicated based on the evaluation of McNamara and Steiner cephalometric analyses were not significant (p=0.609 and p=0.544, respectively). McNamara and Steiner analyses showed reasonable agreement with each other as to the diagnosis, but did not agree with the clinical decision to treat skeletal CIII patients. Both tests were equally inaccurate in the indication of the surgical treatment.

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“…[9] Upadhyaya et al conducted a study in western Uttar Pradesh population and found out that the mean UL to S1 line is 1.54 mm and LL to S1 line 1.61 mm. [10] Purushotaman et al conducted a study in Malabar population and found that the mean LL to E line was 3.43 ± 1.07 in females and 3.5 ± 1.30 in males and LL to H line was 1.31 ± 0.8 in females and in males 1.54 ± 1.20 mm. [11] Lew et al compared H angle between Chinese and Caucasians and found that the Chinese samples had more protrusive lips, a more anteriorly placed maxilla than Caucasian and lips that were not harmonious with the H line.…”

Section: Comparison Of Skeletal Class I With Caucasian Norms and Othementioning

confidence: 98%

Sagittal Lip Positions in Different Skeletal Malocclusions of Nalgonda Population: A Cephalometric Study

2018

IJDA

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Context: Lip position has become one of the most important soft-tissue analyses as it influences the occlusion, tooth stability, and facial esthetics. Sagittal lip position may vary in different skeletal malocclusions which can be evaluated by various reference lines. Aims and Objectives: The aims of this study were to compare the sagittal lip positions in different skeletal malocclusions in Nalgonda population and with other reported populations. Materials and Methods: The sample consisted of 180 (90 males and 90 females) adult subjects from Nalgonda, population visiting Kamineni Institute of Dental Sciences and Hospital. The age range of the sample chosen was between 18 to 26 years. Lateral cephalometric radiographs of subjects were taken in natural head position. Radiographs were manually traced and five reference lines such as Sushner, Steiner, Burstone, Holdaway, and Ricketts were used. The linear distance between the tip of the lips and the five reference lines were measured. Post hoc Tukey's test was used for comparison of the mean cephalometric values of three skeletal malocclusions. Results: The findings showed a significant difference in the sagittal lip positions in different skeletal malocclusions (P < 0.05). Conclusion: (1) Upper lip (UL) and lower lip (LL) in skeletal Class I group are protrusive than norms on all reference lines. (2) Skeletal Class II group has the most protrusive UL and LL in comparison to skeletal Class I and Class III on all the reference lines. (3) Skeletal Class III group has the most protrusive LL in comparison to skeletal Class II and Class I on all reference lines.

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Soft tissue cephalometric analysis applied to regional Indian population

Cited by 9 publications

References 15 publications

Analysis of maxillary anterior teeth proportion in relationship with lower facial height and malocclusion

Analysis of maxillary anterior teeth proportion in relationship with lower facial height and malocclusion

Accuracy of Two Cephalometric Analyses in the Treatment of Patients with Skeletal Class III Malocclusion

Sagittal Lip Positions in Different Skeletal Malocclusions of Nalgonda Population: A Cephalometric Study

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