Assessment of Tooth Proportions in an Aesthetically Acceptable Smile

Jain, Shalu; Reddy, Munish; Raghav, Pradeep; Anjum, Arbab; Misra, Satya Ranjan; Suri, Rajesh Kumar

doi:10.7860/jcdr/2015/11338.5771

Cited by 6 publications

(8 citation statements)

References 18 publications

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“…These results are in agreement with many other authors who confirmed gender variations in the dimensions of the anterior teeth, with men exhibiting wider anterior teeth than women. (9,13) The results in the present study for W/L ratio of anterior teeth in a sample of Egyptian population were 86% for the CI, 78% for the LI and 82% for the C. These results were in agreement with Sterrett et al 1999, (7) and Orozco-Varo et al 2015, except for W/L of canine was of lesser value (79%) than this study. The present results were also similar to Zlataric et al 2007, (14) (in a Caucasian population) except for W/L ratio of CI was of lesser value (83%), and also similar to Zagar 2011, (15) (4) was akin to the present result, who found that 0 mm of gingival display was the most attractive, which is in agreement with the dentist perception in our study, and that 3 mm of gingival display had the lowest score for attractiveness.…”

Section: Discussionsupporting

confidence: 91%

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Efficacy of gender on the width-length ratio of maxillary anterior teeth in an Egyptian population and establishment of a guideline for esthetical accepted ratio of teeth dimensions to gingival display

botross

elmahallawi

El-Arab

2019

Advanced Dental Journal

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Aim:The present study aims to correlate between gender and width-length ratio of maxillary anterior teeth in a sample of Egyptian population and to obtain an optimal esthetical accepted ratio of teeth dimensions to gingival display. Materials and Method: Stone casts were poured from irreversible hydrocolloid impressions of 100 adult Egyptian participants. These casts were used to measure the maximum mesiodistal width, maximum crown length and the width/length ratio for each maxillary anterior tooth. In addition, two frontal photographs were taken for each participant and the visible anterior teeth width, length and width/length ratio were measured. Finally, a sample with gummy smile was selected and the gingival display of the original image was digitally manipulated to create a series of five images with different gingival displays, then these images were subjected to assessment by 50 dentists and 50 laypersons using a numerical rating scale. Results: There was statistically significant difference between female and male group for all teeth width values and W/L ratio of lateral incisor and canine. There was no significant difference between dentists and laypersons perception except for the smile with -4 mm gingival display. Conclusion: Gender affects actual teeth width values as well as actual and apparent W/L ratios of lateral incisor and canine. Laypersons considered 0mm and -2mm gingival display the most attractive situation, on the other hand dentists considered 0 mm gingival display the most attractive one, while all participants agreed that 4mm gingival display is the least attractive one.

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Section: Discussionsupporting

confidence: 91%

“…This technique following the method used by other authors. Hasanreisoglu et al 2005, (10) used a specially designed stabilizer device resembling a face bow, whereas Jain et al 2015, (13) used a customized cephalostat. The results of current study indicate that anterior teeth dimensions vary by gender.…”

Section: Discussionmentioning

confidence: 99%

Efficacy of gender on the width-length ratio of maxillary anterior teeth in an Egyptian population and establishment of a guideline for esthetical accepted ratio of teeth dimensions to gingival display

botross

elmahallawi

El-Arab

2019

Advanced Dental Journal

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“…In the second phase of study selection, full‐text analysis was performed for 77 articles, resulting in 23 meeting the inclusion criteria and was, therefore, included in this systematic review (Figure 2). This review of the literature is based on 23 articles published from March 20, 2010, to July 25, 2019 2,8,9,17,18,20,21,25‐34 . In all, data from 3603 participants were recorded.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the different classifications included were the groups comparable, were cases and controls matched appropriately, were the same criteria used for identification of cases and controls, was exposure measured in a standard, valid, and reliable way, was exposure measured in the same way for cases and controls, and were confounding factors identified (Table 1, Figure 3). 8,9,17,18,20,21,[25][26][27][28][29][30][31][32][33][34] In all, data from 3603 participants were recorded. Data collected was reported from each study.…”

Section: Quality Assessmentmentioning

confidence: 99%

Evaluation of influence factors on the width, length, and width to length ratio of the maxillary central incisor: A systematic review and meta‐analysis

Wang

Song

Zhong

et al. 2020

J Esthet Restor Dent

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Objectives: The aim of this study was to analyze whether symmetry of left and right sides, gender, measuring method, and ethnicity have influences on width (W), length (L), and width to length ratio (W/L) of the maxillary central incisor (MCI) and provide a reference for dental treatment planning in the esthetic zone. Materials and Methods: An electronic search was conduct of the dental literature. Studies reporting data about measurements were included. Data were extracted and analyzed for the differences between left and right, male and female, different measuring methods, and ethnicities by Review Manager and Stata statistical software. Results: Seventeen studies were included. There were no differences between measurement of the left and right groups, perceived and actual measuring groups. However, differences were found between genders in MCI's W and L but no difference in W/L. Differences were also found between Asians and Caucasian subjects in MCI's W, L, and W/L. Conclusions: The results of this meta-analysis suggest that symmetry of left and right sides and measuring method do not influence MCI dimension. Gender and ethnicity are found as influence factors for MCI dimension. We believe these findings can be helpful for dentists to decide and design the dimensions of the restorations for maxillary anterior teeth in clinical practices. Clinical significance 1 In the process of designing maxillary anterior teeth for implantation, the contralateral MCI can be helpful to create a symmetrical esthetic restoration. For patients with maxillary anterior tooth loss or diastemas, dentists should divide the left and right space equally and keep the MCI contact area aligned with the midline. 2 Dentists should take face size and gender into consideration when making treatment plans for the MCI. Facial parameters as well as the size ratios of the previous teeth can be evaluated and may influence the size and shape of the teeth. 3 When measuring anterior teeth or facial dimensions for esthetic evaluation, the recommended method is to measure the perceived sizes of a facial view image † These authors contributed equally to this work.

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“…2 Europe 3 and India. 10 This situation represents a shift of the standards of beauty commonly used in the teaching of dental aesthetics applied to a population of Caucasian origin, which does not coincide with the morphological aspects of the population living in South America, due to the high population variability in this region caused by migratory inf lux.…”

Section: Discussionmentioning

confidence: 99%

Relationship between width and length ratios of upper anterior teeth in young Chilean population.

et al. 2017

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Introduction: Knowledge about the size and proportion of upper anterior teeth allows dental rehabilitation taking into consideration the local parameters of a population. The aim of this research is to determine the width, length and the relationship between width and length of central incisor, lateral incisor and canine teeth in both sexes in young Chilean population. Methodology: A cross-sectional study was performed. Study subjects included 187 dentistry students from two Chilean cities (mean age 21.35±2.7 years, 52.9% men). The teeth width and height were measured and the width/height ratio was calculated. Differences in measurements according to sex was analyzed (p<0.05; STATA v.10.0). Results: The width and height of the teeth were statistically and proportionally larger in men (p<0.05). The width/height ratio of lateral and canine incisors was significantly higher in women (p<0.05). Conclusion: In a sample of young Chileans, upper anterior teeth were longer and wider in men. However, the width/height ratio of teeth was found to be significantly higher in women.

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Assessment of Tooth Proportions in an Aesthetically Acceptable Smile

Cited by 6 publications

References 18 publications

Efficacy of gender on the width-length ratio of maxillary anterior teeth in an Egyptian population and establishment of a guideline for esthetical accepted ratio of teeth dimensions to gingival display

Efficacy of gender on the width-length ratio of maxillary anterior teeth in an Egyptian population and establishment of a guideline for esthetical accepted ratio of teeth dimensions to gingival display

Evaluation of influence factors on the width, length, and width to length ratio of the maxillary central incisor: A systematic review and meta‐analysis

Relationship between width and length ratios of upper anterior teeth in young Chilean population.

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