“Comparative Evaluation of the Relationship between the Intermedial Canthus Width on the Face and the Width of the Maxillary Central Incisor in Males and Females in The Local Population”

AbstractAn altered facial appearance is more difficult to face, than problems related to ill-fitting denture or eating. The selection of maxillary anterior teeth for complete denture has long posed problem in clinical practice and a controversy about the best method to employ still exists. An attempt is made in the present study to clinically correlate the face form with maxillary central incisor tooth form in males and females of Davangere population. In 1914, Leon William's projected the “the form method” where he classified facial forms as square, tapering, and ovoid. Maxillary central incisors were selected according to the facial forms.Of total 100 subjects four different tooth forms and face forms were evaluated. They are: square, ovoid, square-tapered, tapered. No significant correlation existed between face form in male and females. Females exhibited greater correlation between face forms and inverted tooth form but that correlation is not sufficient to serve as a guide for selection of anterior teeth.

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Identifying the tooth shade in group of patients using Vita Easyshade

European Journal of Dentistry ◽

10.4103/1305-7456.156828 ◽

2015 ◽

Vol 09 (02) ◽

pp. 213-217 ◽

Cited By ~ 12

Author(s):

Habab Osman Elamin ◽

Neamat Hassan Abubakr ◽

Yahia Eltayib Ibrahim

Keyword(s):

Analysis Of Variance ◽

Ethnic Background ◽

Central Incisor ◽

Significant Relation ◽

Maxillary Central Incisor ◽

Number Of Patients ◽

Significant Difference ◽

Males And Females ◽

The Relationship

ABSTRACT Objective: The aim of the present investigation is to identify tooth shade among a group of Sudanese patients. Materials and Methods: Total number of patients was 227. Participant's age ranged from 15 to 72 years, which, was divided into four groups. The tooth included in the study was either right or left sounds maxillary central incisor. Vita Easyshade was used to select the tooth shade. Investigation of the differences of Commission International de l'Eclairage (CIELab) coordinates among gender and state of origin was conducted together with an examination of the relationship between CIELab coordinates and age. One-way analysis of variance was used to test the differences in L*, a* and b* according to state of origin. Results: Results showed that A3 was the most common classical tooth shade respectively. There was highly significant difference in L* between males and females (P = 0.002). There was a significant relation between tooth shade and age (P = 0.026). There was a high significant association between classical tooth shade and Sudan regions (P = 0.00). Conclusion: In conclusion, most common classical shade was A3, women's teeth were lighter than men's. There was a relation between ethnic background and tooth shade.

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A Comparative Evaluation of Effect of Upper Lip Length, Age and Sex on Amount of Exposure of Maxillary Anterior Teeth

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1005 ◽

2011 ◽

Vol 12 (1) ◽

pp. 24-29 ◽

Cited By ~ 2

Author(s):

Paranjay Prajapati ◽

Rajesh Sethuraman ◽

YG Naveen

Keyword(s):

Comparative Evaluation ◽

Age Group ◽

Central Incisor ◽

Upper Lip ◽

Maxillary Central Incisor ◽

Anterior Teeth ◽

Relationship Of ◽

The Relationship ◽

Male Subjects ◽

Age And Sex

ABSTRACT Aim The aim was to evaluate the relationship of age, sex and lip length to the amount of exposure of maxillary incisors and canine teeth. Materials and methods Two-hundred subjects were enrolled in the study. All subjects were grouped according to the lip length and age. The exposure of maxillary central incisor and canines was measured with flexible millimeter ruler. Teeth exposure beyond the lower border of the upper lip was considered as positive exposure and the unexposed teeth were considered as negative exposure. Result In females of age group 20 to 29, 30 to 39, 40 to 49 and 50 to 59 years, the mean exposure of central incisor was 2.16, 2.1, 2.18 mm and that of canine was 0.04, −0.36, −0.44 mm. For male of age group 20 to 29, 30 to 39, 40 to 49 and 50 to 59 years exposed 2.04, 2.04, 1.84, 1.76 mm of central incisor respectively and 0.08, −0.52, −0.4 and −0.4 mm exposure of canine. Female subjects with lip length 10 to 15, 15 to 20, 21 to 25, 25 to 30 and 31 to 35 mm showed 3.7, 3.4, 2.3, 0.9, 0.25 mm exposure of central incisor and 0.35, −0.15, −0.7, −0.8, −0.6 mm exposure of canine, respectively. Male subjects exposed 3.4, 3.3, 2.05, 0.7, 0.15 mm of central incisor and 0.4, 0.3, −0.6, −0.95, −0.7 mm of canine respective to lip length. Conclusion The range of exposure of maxillary central incisors was wider than that of canine. The average dimensions for maxillary canines relating to age and sex were closer to the extremes of the range. The canine position relative to the maxillary lip appeared to be a more predictable determinant. Clinical significance The result of the study can be used as a reference according to the age, sex and the lip length of the patient to correctly place maxillary anterior teeth in prosthesis. How to cite this article Patel JR, Prajapati P, Sethuraman R YG N. A Comparative Evaluation of Effect of Upper Lip Length Age and Sex on Amount of Exposure of Maxillary Anterior Teeth. J Contemp Dent Pract 2011;12(1):24-29.

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Correlation Between Face Form and Maxillary Central Incisor Tooth Form in Dentate Patients Visiting Rehman College of Dentistry Peshawar

10.53350/pjmhs2115103017 ◽

2021 ◽

Vol 15 (10) ◽

pp. 3017-3020

Author(s):

Muhammad Afzal Khan ◽

Shafqat Hussain ◽

Muhammad Sohaib Nawaz ◽

Muhammad Irfan ◽

Aamna Mansur ◽

...

Keyword(s):

Descriptive Statistics ◽

Central Incisor ◽

Inclusion Criteria ◽

Incisor Tooth ◽

Probability Sampling ◽

Maxillary Central Incisor ◽

Dental Esthetics ◽

The Face ◽

Tooth Form ◽

Males And Females

Aim: To determine the correlation between face form and maxillary central incisor tooth form in dentate patients visiting Rehman College of dentistry Peshawar. Methods: 152 patients fulfilling the inclusion criteria were included in the study through consecutive non probability sampling. Photographs of their face and maxillary central incisor were taken, printed, traced and subjected to classification by William’s method by 4 Prosthodontists. Results: As per descriptive statistics, mean and SD’s for age was 31+5.78, mean and SD’s for face form measurements was recorded as 78+1.67, whereas mean and SD’s for central incisor tooth form measurements was recorded as 25+0.69 Conclusion: It has been concluded that there is no highly defined correlation between the face form and maxillary central incisor tooth form in males and females. These results indicate that the maxillary central incisor tooth shows considerable asymmetry, whereas the face is basically symmetric. Instead, the opinions and desires of the patient should be considered, to ensure optimal dental esthetics for each individual. Keywords: Face form, Tooth form, Central Incisor, Correlation

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Evaluation of Relation between Bizygomatic Width and Mesiodistal Dimension of Maxillary Central Incisor in Saudi Population: An In-vivo Study

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2020/45687.14159 ◽

2020 ◽

Author(s):

Mohammed Shammas ◽

Eyad Osama Bukhari ◽

Albatool Jaffar Rummani ◽

Ahmed Ali Almasri ◽

Deema Essam Bakhsh ◽

...

Keyword(s):

Correlation Coefficient ◽

P Value ◽

Saudi Population ◽

Central Incisor ◽

Pearson’S Correlation Coefficient ◽

Maxillary Central Incisor ◽

Pearson's Correlation ◽

Males And Females ◽

Pearson's Correlation Coefficient ◽

The Relationship

Introduction: Selection of the maxillary anterior teeth is one of the most crucial steps in fabricating a removable prosthesis. To overcome this challenge, the relationship between facial measurements and natural teeth could be used as a guide in selecting the Maxillary Central Incisor (MCI) teeth. To improve aesthetics, various efforts have been made to associate the Mesiodistal Dimension (MD) of the MCI with various facial parameters. Aim: To determine the relationship between Bizygomatic Width (BZW) and the MD of the MCI in the Saudi population. Materials and Methods: The cross-sectional study selected two hundred dentulous subjects (100 males and 100 females) using a simple random sampling technique from December 2019 to March 2020. BZW was measured between the two most prominent points on the zygomatic bone, and the MD of the MCI was measured between the interproximal contact points. Both measurements were made with the help of a digital vernier caliper. Descriptive statistics and student’s t-test were used to compare all the measurements between males and females with a level of significance at 5% (0.05) and the power of the study of 95%. Pearson’s correlation coefficient (r) was used to find the interconnection between MD of MCI and BZW by linear correlation analysis. Results: The average values for BZW for males and females were found to be 123.56±3.74 mm and 117.33±3.21 mm, respectively. The average MD values of MCI for males and females were found to be 8.6±0.46 mm and 8.4±0.53 mm, respectively. A statistically significant difference was observed in the mean values of the BZW (p-value<0.001) and MD of MCI (p-value 0.002) when a comparison was done among males and females. The average ratio of MD of MCI to BZW was found to be 0.07±0.004 for males, whereas it was 0.072±0.004 for females and was statistically significant (p-value 0.001). The ratio of MD of MCI to BZW was found to be 1:14 for males and females. Pearson’s correlation coefficient (r) was positive and ranged from 0.067 to 0.007. Conclusion: Males had greater values for BZW and MD of MCI than females. There was an inconsistency when Berry’s biometric ratio was applied and when compared with the actual MD of MCI measurement in the present study. The findings of this study showed that there was a weak positive correlation between the MD of MCI and the BZW.

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Denture tooth selection: An analysis of the natural maxillary central incisor compared to the length and width of the face: Part II

Journal of Prosthetic Dentistry ◽

10.1016/0022-3913(92)90589-3 ◽

1992 ◽

Vol 67 (6) ◽

pp. 810-812 ◽

Cited By ~ 8

Author(s):

Arthur M. LaVere ◽

Keith R. Marcroft ◽

Roland C. Smith ◽

Robert J. Sarka

Keyword(s):

Central Incisor ◽

Maxillary Central Incisor ◽

The Face ◽

Face Part

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LEHs in Medieval Scandinavia: Preliminary Analysis

Dental Anthropology Journal ◽

10.26575/daj.v11i3.210 ◽

2018 ◽

Vol 11 (3) ◽

pp. 9-12 ◽

Cited By ~ 1

Author(s):

Christine L. Hanson ◽

Hasmin S. Miller

Keyword(s):

Preliminary Analysis ◽

Regional Differences ◽

Growth Stress ◽

Maxillary Incisor ◽

Central Incisor ◽

Enamel Defects ◽

Maxillary Central Incisor ◽

Males And Females ◽

Mandibular Canine ◽

Mandibular Teeth

The development of enamel defects is a topic of considerable interest among skeletal biologists. Linear enamel hypoplasias (LEHs) are commonly studied, as they are generally thought to present stress-induced growth disruptions. The present research uses the frequency of LEH in spatially dispersed but chronologically compact samples to document regional differences in growth stress. Analysis of 1,068 teeth representing the permanent dentition of 921 individuals from six medieval sites in Denmark, Norway, and Greenland showed that the highest frequency of LEH occurred in the mandibular canine (29.13%) followed by the maxillary central incisor (27.51%). Comparison of these results with developmental charts, showing that maxillary incisor and mandibular canine crowns are completely formed between 4 and 7 years of age, indicated that early childhood was likely a stressful time for medieval Scandinavians. Overall, LEHs were more common in maxillary teeth than in mandibular teeth. Although statistically significant differences in LEH frequencies were not found between males and females, locations did differ significantly.

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Three-dimensional analysis of the relationship between the structure of maxillary central incisor and the preparation of dental all-ceramic

PLoS ONE ◽

10.1371/journal.pone.0209791 ◽

2018 ◽

Vol 13 (12) ◽

pp. e0209791

Author(s):

Peng Wang ◽

Fangfang Sun ◽

Qing Yu ◽

Guofeng Wu

Keyword(s):

Dimensional Analysis ◽

Three Dimensional ◽

Central Incisor ◽

Maxillary Central Incisor ◽

All Ceramic ◽

The Relationship

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Aesthetic Value of the Relationship between the Shapes of the Face and Permanent Upper Central Incisor

International Journal of Dentistry ◽

10.1155/2010/561957 ◽

2010 ◽

Vol 2010 ◽

pp. 1-6 ◽

Cited By ~ 3

Author(s):

Felipe de Oliveira Farias ◽

Jussara P. Ennes ◽

José Roberto Zorzatto

Keyword(s):

Statistical Analysis ◽

Correlation Coefficient ◽

Central Incisor ◽

Aesthetic Value ◽

Pearson’S Correlation Coefficient ◽

Kappa Test ◽

The Face ◽

Pearson's Correlation ◽

Metrical Analysis ◽

The Relationship

The relationship between the shapes of face and teeth has been analyzed for esthetic purposes and exploited commercially. The methodology to assess this correlation, described in the literature, does not enable reliable application of the concepts. Digital photos of face and incisors of 100 youths were measured with the software Image Tool 3.0 and classified as to shape. The same photographs were also analyzed and classified by a visual criterion. Statistical analysis of the metrical classification was performed by Pearson's correlation coefficient. The Kappa test was used to determine the coefficient of agreement between the observers and the obtained data, and to assess the agreement between both classifications (metrical and visual). The classificatory analysis made by the observers indicated a marked level of disagreement, also identified between their classification and that obtained by metrical analysis. The results indicated no relationship between the shapes of the face and the central incisor.

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Relation between the facial contour form, the dental arches and the upper central incisors shape in dental students from Universidad del Valle - Cali

Revista Estomatología ◽

10.25100/re.v19i1.5719 ◽

2017 ◽

Vol 19 (1) ◽

Author(s):

David Acosta ◽

Andrea Melissa Porras ◽

Freddy Moreno

Keyword(s):

Dental Students ◽

Dental Arch ◽

Forensic Dentistry ◽

Central Incisor ◽

Dental Identification ◽

Facial Contour ◽

Round Shape ◽

Oval Form ◽

The Face ◽

The Relationship

SUMMARYObjective: To determine the relationship ifany between the facial contour, the form ofthe dental arches and the morphology of theupper central incisors in dental students ofthe University del Valle.Methods: This is an observational descriptivestudy that determined the relationbetween the facial contour, the dentalarches and the upper central incisorsshapes through digital photographs in 48dental students (24 women and 24 men) atUniversity del Valle belonging to a mixedethnic group predominantly Caucasoid. Thecoefficient of contingency was used to establishthe possible association between theforms of the face, the dental arches and thecentral incisors. A p<0.05 was consideredstatistically significant.Results: The oval form was the mostfrequent facial contour (50%), includingthe upper (77,1%) and lower dental arch(85,4%) and the upper right central incisor(41,7%) were also prevalent. By gender,the facial contour presented significantdifferences, given that in women was moreprevalent the round shape (29,2%) while inmen it was the square form (37,5%); neverthelessthe oval form was present in themajority of cases in both male and female.Conclusions: The oval form was the mostfrequent facial contour, dental arches andthe upper central incisors form. It wasnot possible to determine the form of thepermanent upper central incisors usingthe facial contour type or the form of thedental arches.Keywords: Forensic dentistry, dental identification,facial contour, dental arch, uppercentral incisors shape.

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