scholarly journals Perceptions of Altered Smile Esthetics: A Comparative Evaluation in Orthodontists, Dentists, and Laypersons

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Amjad Al Taki ◽  
Mohammed Khalesi ◽  
Muftah Shagmani ◽  
Islam Yahia ◽  
Fatma Al Kaddah
Keyword(s):  
Central Incisor ◽  
Crown Length ◽  
Crown Width ◽  
General Dentists ◽  
Smile Esthetics ◽  
Post Hoc ◽  
Buccal Corridor ◽  
One Way Anova ◽  
Dental Professionals ◽  
The Ideal

Objective. The current investigation was proposed to determine the impression of trained dental professionals and laypeople towards the modified smile esthetics.Materials and Methods. Twenty-six images were randomized in a survey and graded according to attractiveness by the orthodontists, general dentists, and laypeople. Photographs of gingival display, midline diastema, central incisor crown length, and lateral incisor crown width were manipulated with five minor changes in each. For smile arc and buccal corridor, two major changes were incorporated besides the ideal photograph. One-way ANOVA and Post Hoc analysis of the responses were measured for each group.Results. Most evaluators opined that the ideal smile in each category was the most acceptable. Orthodontists were more perceptive and exacting in accepting variations in the smile arc and buccal corridors. Dental professionals and laypeople indicated that either complete absence or a 0.5 mm of alterations in a gingival display, midline diastema, and crown length makes a smile beautiful and pleasant. Changes in crown width were not perceivable by all the three groups.Conclusion. Eastern Arabic laymen are more conscious about alterations in gingival display, midline diastema, and crown length in their smile. Hence, the orthodontist should pay attention to these factors during any orthodontic treatment.

scholarly journals Effect of Buccal Corridors Width on Smile Quality and Esthetics

2021 ◽  
Vol 30 (03) ◽  
pp. 204-208
Author(s):  
Hina Siddiqui ◽  
◽  
Sadia Rizwan ◽  
Syed Shah Faisal ◽  
Syed Sheeraz Hussain
Keyword(s):  
Cross Sectional Study ◽  
Width Ratio ◽  
Sectional Study ◽  
Analog Scale ◽  
Cross Sectional ◽  
General Dentists ◽  
Smile Esthetics ◽  
Post Hoc ◽  
Buccal Corridor ◽  
General Dentist

OBJECTIVE: To assess the perception of buccal corridor width on smile esthetics by Orthodontic residents, General dentists and Laypersons. METHODOLOGY: A smile photograph was taken of an adult female. The image was modified to obtain five different buccal corridor widths and were assessed by different evaluators grouped into general dentist, orthodontic resident and laypersons who rated the attractiveness of each smile by means of a visual analog scale (VAS). Sample size was 97 participants to rate the picture. Non-probability purposive sampling was done The data was analyzed and mean and SD were calculated for the scores of rating. ANOVA and Tukey's post hoc test was applied to compare the different ratings of buccal corridors in three groups. The data of this cross sectional study was collected from general population belonging to different communities, general dentists and orthodontic residents of different dental colleges of Karachi, Pakistan from August 2019 to March 2020. RESULTS: There were 97 participants who responded to the images. Highest scores were obtained for Image 1 having buccal corridor width ratio of 16% followed by image no. 3 having buccal corridor width ratio of 10% and lowest scores were obtained for Image no. 6 having least buccal corridor widths ratio that is 34% followed by image no 5 having 26% buccal corridor widths. Among the groups of participants, the highest scores were given by laypersons for all images. Significant differences were observed between evaluation of groups of Orthodontic resident and layperson in most images. CONCLUSION: There was a remarkable influence of buccal corridor width on smile esthetics, with the 16% ratio group being rated as the most attractive by all three groups. KEYWORDS: Buccal corridors, Smile, esthetics, Attractiveness

scholarly journals Smile microesthetics as perceived by dental professionals and laypersons

2021 ◽  
Author(s):  
Sawsan A. Alomari ◽  
Elham S. Abu Alhaija ◽  
Ahed M. AlWahadni ◽  
Akram K. Al-Tawachi
Keyword(s):  
Linear Model ◽  
General Linear Model ◽  
Study Groups ◽  
General Linear ◽  
Dental Student ◽  
Black Triangle ◽  
General Dentists ◽  
Smile Esthetics ◽  
Dental Professionals ◽  
The Ideal

ABSTRACT Objectives To evaluate and compare the perception of different dental professionals and laypersons toward altered gingival characteristics (microesthetics) and to identify those characteristics that are most negatively and positively rated. Materials and Methods A smiling photograph of a female dental student was selected and digitally manipulated to create changes in different microesthetic parameters. These altered images were rated by the following five groups: 120 orthodontists, 45 periodontists, 49 prosthodontists, 130 general dentists, and 172 laypersons. Smile esthetics scores were calculated, and comparisons between groups were performed using the univariate general linear model. Results The presence of black triangles between the upper incisors was the most negatively rated, and the ideal smile was the most positively rated. Significant differences were detected in the rating scores among the different study groups (P < .05). Orthodontists, prosthodontists, and general dentists scored the presence of a black triangle in the smile as the least attractive, whereas periodontists and laypersons perceived the inflamed gingiva and pigmented gingiva as the least attractive, respectively. Dental specialists tended to give the altered smile images lower scores than the laypersons. Conclusions The ideal smile and that with black triangles between the upper incisors were rated as the most and the least attractive smiles, respectively. Orthodontists, prosthodontists, and general dentists scored the presence of black triangles in the smile as the least attractive, whereas periodontists and laypersons perceived the inflamed gingiva and pigmented gingiva as the least attractive smiles, respectively. Dental specialists tended to give the altered smile images lower scores than the laypersons.

scholarly journals Perception of Smile Esthetics Varies Between Patients and Dental Professionals When Recession Defects are Present

2013 ◽  
Vol 24 (4) ◽  
pp. 385-390 ◽  
Author(s):  
Marta Liliana Musskopf ◽  
Jose Mariano da Rocha ◽  
Cassiano Kuchenbecker Rosing
Keyword(s):  
Gingival Recession ◽  
Dental Students ◽  
Mean Values ◽  
Gingival Margin ◽  
Alpha Level ◽  
Maxillary Lateral Incisor ◽  
Smile Esthetics ◽  
One Way Anova ◽  
Dental Professionals ◽  
Structured Questionnaire

The aim of this study was to compare the smile esthetic perception of patients, dental students and dentists faced to different situations concerning gingival margin position. A total of 123 individuals (41 patients, 41 dental students and 41 dentists) completed a structured questionnaire and evaluated 6 pictures of the same smile modified in Adobe Photoshop® image-editing software representing: no gingival recession, 2 mm recession in one maxillary lateral incisor, 2 mm recession in both maxillary lateral incisors, 2 mm recession in one maxillary canine, 2 mm recession in both maxillary canines and generalized 2 mm recession. The visual analogue scale (VAS) was used to rate the esthetic perception. Mean VAS values were calculated and compared among gingival situations as well as group of respondents by one-way ANOVA, with an alpha level of 0.05. VAS analysis revealed that mean values ranged from 4.2 (±1.8) to 6.8 (±1.7). Images with no gingival recession received the highest score by all groups, with statistically significant differences among dentists and dental students. However, patients scored images with no recession with significantly lower ranks as compared with dentists and dental students. No significant differences were observed among patients for any of the situations. When dentists and dental students were compared, the worst situation was observed for generalized gingival recession, with scores 4.2 (±1.8) and 4.9 (±1.8), respectively. Patients and dental professionals had different perceptions about esthetics related to gingival margin position.

scholarly journals Smile esthetics from odontology students' perspectives

2013 ◽  
Vol 84 (2) ◽  
pp. 214-224 ◽  
Author(s):  
Pilar España ◽  
Beatriz Tarazona ◽  
Vanessa Paredes
Keyword(s):  
Orthodontic Treatment ◽  
Computer Software ◽  
Statistical Analyses ◽  
Central Incisor ◽  
Crown Length ◽  
Smile Esthetics ◽  
The University ◽  
Determining Factor ◽  
Gummy Smile

ABSTRACT Objectives: To analyze the perception of smile esthetics and its alterations in dental degree students; to determine whether there are differences in that perception among students in different study years on those courses and between genders; and to determine if the circumstance of having received prior orthodontic treatment could influence that perception. Material and Methods: Students (n = 192) in different study years of the dental degree course at the University of Valencia, Spain, analyzed two photographs of a patient in which, by means of computer software, midline diastema, upper and lower midlines, crown length of the maxillary right central incisor, occlusal cant, and “gummy” smile were altered. Students assessed the photographs on a scale from 1 to 10. Statistical analyses for assessing each group's level of perception were carried out. Results: After checking the validity of the study, it was observed that the students' ability to detect alterations in smile esthetics did not improve over their degree courses, given that the differences do not present a linear development. There were no differences between genders and between those who had or had not undergone an orthodontic treatment. Conclusions: There are no statistically significant differences between the results of students in different study years or between genders. The circumstance of having undergone prior orthodontic treatment is not a determining factor in the ability to perceive such anomalies.

scholarly journals Evaluation of Perception and Care in the Sanitation of Toothbrushes

2018 ◽  
Vol 20 (1) ◽  
pp. 20
Author(s):  
Beatriz Cavalcante Pereira ◽  
Gabriela Evangelista de Vasconcelos ◽  
Diala Aretha de Sousa Feitosa
Keyword(s):  
Descriptive Analysis ◽  
Dental Students ◽  
Significance Level ◽  
Adequate Information ◽  
The Subject ◽  
Knowledge And Practice ◽  
Post Hoc ◽  
And Storage ◽  
One Way Anova ◽  
The Ideal

As escovas dentais são contaminadas diariamente por bactérias presentes na cavidade oral ou no meio externo, por isso são consideradas depósitos de microorganismos, capazes de causar e transmitir doenças. O presente trabalho teve como objetivo avaliar o conhecimento e práticas quanto à higienização e armazenamento das escovas dentais, a fim de comparar ações executadas por grupos diferentes, e identificar falta de informações adequadas frente ao assunto. Os dados foram coletados através de questionários, em que foram avaliados três grupos experimentais: 1- Pacientes (n=50) atendidos no Sistema Único de Saúde (SUS), 2- Acadêmicos de Odontologia (n=50) do Centro Universitário Doutor Leāo Sampaio e 3- Cirurgiões-dentistas (n=50) de Juazeiro do Norte, Ceará. Foi realizada análise descritiva de distribuição de frequência, Anova 1 critério e teste post hoc de Bonferroni foram os testes utilizados, adotando-se um nível de significância de 5%. Na presente pesquisa, constatou-se que o grupo dos Cirurgiões-dentistas tem maior conhecimento e praticam melhores ações quanto às práticas de higienização das escovas dentais, superior ao grupo dos Acadêmicos e esses dos Pacientes. Porém, em relação ao armazenamento, os grupos demostraram não ter conhecimento acerca do local mais adequado e da maneira ideal para armazenar suas escovas. Conclui-se que, o grupo dos Cirurgiões-dentistas realiza a maior parte das manobras aconselháveis sobre os cuidados frente a higienização das escovas dentais relacionado aos outros grupos em questão, apesar de não ter conhecimento acerca de novas tecnologias para desinfecção das escovas.Palavras-chave: Contaminação. Escovação Dentária. Saúde Bucal.Abstract Toothbrushes are daily contaminated by bacteria in the oral cavity or outside, therefore they are considered containers for microorganisms, capable of causing and transmitting diseases. The current work aimed to evaluate the knowledge and practices regarding hygiene and storage of toothbrushes, in order to compare actions executed by different groups, and identify the lack of adequate information when facing the subject. Data were collected through a questionnaire, in which three experimental groups were evaluated: 1- patients (n=50) treated at Sistema Único de Saúde (SUS), 2- Dental students (n=50) from Centro Universitário Doutor Leão Sampaio and 3- Dental clinicians (n=50) from Juazeiro do Norte. A descriptive analysis of frequency distribution was performed, and One Way Anova and Bonfrerroni Post Hoc tests were performed, at a significance level of 5%. In the current research, it was found that the group of Dentists has a greater knowledge and practice better actions regarding the toothbrushes sanitation , higher than that of the group of Students, which was better that that of the group of Patients. However, regarding storage, the groups demonstrated to have not enough information regarding the adequate place and the ideal manner of storing their toothbrushes. It was concluded that, the group of Dentists performs the most part of recommended maneuvers regarding the care for toothbrushes hygiene compared to the other evaluated groups.Keywords: Contamination. Toothbrushing. Oral Health.

scholarly journals Does the presence of maxillary midline diastema influence the perception of dentofacial esthetics in video analysis?

2020 ◽  
Vol 91 (1) ◽  
pp. 54-60
Author(s):  
Priscila Rios Bomfim Chaves ◽  
Alexandre Melo Karam ◽  
Andre Wilson Machado
Keyword(s):  
Analysis Of Variance ◽  
Video Analysis ◽  
Acrylic Resin ◽  
Anterior Region ◽  
Frontal View ◽  
Visual Analog Scales ◽  
Level Of Significance ◽  
Smile Esthetics ◽  
Post Hoc ◽  
The Ideal

ABSTRACT Objective To evaluate the influence of a midline diastema on dentofacial esthetic perceptions of orthodontists, restorative dental specialists or prosthodontists, and laypersons in a frontal facial evaluation performed by means of video. Materials and Methods Two individuals aged between 20 and 25 years, one of each gender, with presence of a midline diastema were selected. An acrylic resin mockup was made of the maxillary anterior region, simulating ideal conditions of smile esthetics. Four standardized frontal view videos of the complete face were filmed of each individual in the following situations: with the ideal smile (unchanged mockup) and with the presence of midline diastemas of 0.5, 1.0, and 1.5 mm created by the mockup. In all videos, the patient said a certain sentence and, at the end, simulated a posed smile. Dentofacial esthetic perceptions of all four videos of each individual were evaluated by 51 orthodontists, 51 restorative dental specialists or prosthodontists, and 51 laypersons by means of visual analog scales. Data were evaluated using analysis of variance and Tukey post hoc test, with the level of significance set at 5%. Results The most attractive videos for all groups of examiners were those without diastema and with a diastema of 0.5 mm, for both the woman and the man. For a diastema of 1 mm or 1.5 mm, the dentofacial characteristics were considered unesthetic. Conclusions Diastemas equal to or greater than 1 mm negatively influence dentofacial esthetics in a frontal facial evaluation performed by means of video.

scholarly journals Do different vertical positions of maxillary central incisors influence smile esthetics perception?

2017 ◽  
Vol 22 (2) ◽  
pp. 95-105 ◽  
Author(s):  
Erica Bretas Cabral Menezes ◽  
Marcos Alan Vieira Bittencourt ◽  
Andre Wilson Machado
Keyword(s):  
Analysis Of Variance ◽  
Visual Analog Scale ◽  
Vertical Position ◽  
Adult Women ◽  
Test Results ◽  
Central Incisor ◽  
Analog Scale ◽  
Full Face ◽  
Smile Esthetics ◽  
Post Hoc

ABSTRACT INTRODUCTION: The purpose of this study was to determine the perception of smile esthetics among orthodontists and layperson, with respect to different maxillary central incisors vertical positions in full-face and close-up smile analyses. METHODS: Frontal photographs of the smiles of two adult women were used. Images were altered to create a symmetrical image with the gingival margin levels of the maxillary canines matching the central incisors and a 1.0-mm central-to-lateral incisal step. Later, the images were altered in order to create six different central incisor vertical positions in 0.5-mm increments. The images were randomly assembled in an album, which was given to 114 judges, 57 orthodontists and 57 laypersons, who were asked to evaluate the attractiveness of the images using the visual analog scale. The data collected were statistically analyzed by means of 1-way analysis of variance with the Tukey post-hoc test and the Student t test. RESULTS: The highest rated smiles showed two notable characteristics: a) the central incisor gingival margins matched or were 0.5 mm below the line of the canine gingival margins and; b) the central-to-lateral incisal step was 1.0 to 1.5 mm. The worst smiles showed two notable characteristics: a) the central incisor gingival margins were 1.0 mm above or 1.5 mm below the canine gingival margins and; b) no step between the centrals and laterals or a 2.5-mm step. CONCLUSION: The vertical position of the maxillary central incisors significantly affected the perception of the smile esthetics, whereas slightly extruded central incisors were more esthetically preferred than intruded.

scholarly journals Evaluation of the attractiveness of different gingival zeniths in smile esthetics

2018 ◽  
Vol 23 (5) ◽  
pp. 47-57 ◽  
Author(s):  
Suzy Nomura ◽  
Karina Maria Salvatore Freitas ◽  
Paula Patrícia Cotrin da Silva ◽  
Fabricio Pinelli Valarelli ◽  
Rodrigo Hermont Cançado ◽  
...  
Keyword(s):  
Central Incisor ◽  
Comparison Results ◽  
The Aesthetic ◽  
General Dentists ◽  
Smile Esthetics

ABSTRACT Objective: To evaluate the smile attractiveness of different gingival zeniths by general dentists, orthodontists and laypersons and the esthetic perception in the symmetric and asymmetric changes in gingival zeniths. Methods: Posed photographs of five patients were taken and digitally manipulated in Keynote software, in the gingival zenith region, in increments of 0.5 to 1mm in maxillary central and lateral incisors, symmetrically and asymmetrically, in nine different ways for each patient. The photos were then uploaded to a website, where evaluators (general dentists, orthodontists and laypersons) could observe and vote according to their esthetic perception, scoring from 1 to 10, 1 being the least attractive and 10 the more attractive. Kruskal-Wallis and Mann-Whitney tests were used for comparison. Results: Asymmetric gingival zeniths were less attractive than symmetrical gingival zeniths; gingival zenith differences greater than 1mm were perceptible in the smile attractiveness, both by laypersons, general dentists and orthodontists. When comparing maxillary central incisors with maxillary lateral incisors, the aesthetic change performed in the central incisors are more perceptible than those performed in lateral incisors, both symmetrical and asymmetrical. In a general way, orthodontists and general dentists are more critical in the evaluation and perception of gingival zenith changes, with the laypersons perceiving this change only from 1mm of maxillary right central incisor asymmetrical change. Conclusions: Asymmetric gingival zeniths are less attractive than symmetrical ones. Gingival zenith differences greater than 1mm are perceptible in the smile attractiveness. Orthodontists and general dentists are more critical in evaluating smile esthetics.

scholarly journals Influence of Orthodontic Treatment on Smile Attractiveness as perceived by Common People, General Dentists and Orthodontists

2016 ◽  
Vol 7 (1) ◽  
pp. 18-22
Author(s):  
Karan Nehra
Keyword(s):  
Orthodontic Treatment ◽  
Common People ◽  
The Common ◽  
The Mean ◽  
The Difference ◽  
General Dentists ◽  
Smile Esthetics ◽  
Post Hoc ◽  
Change In Mean ◽  
General Dentist

ABSTRACT Objectives To analyze the influence of orthodontic treatment on smile attractiveness as perceived by common people, general dentists and orthodontists. Materials and methods The photographic records of 114 patients were screened and 72 patients who fulfilled the inclusion criteria were selected. The pretreatment and posttreatment smile photographs were rated on a 10-point scale by panels of common people, general dentists and orthodontists. Data were analyzed by one-way analysis of variance (ANOVA) with Tukey's post hoc test. Results The mean esthetic scores for pretreatment images as evaluated by the three panels; orthodontists, general dentists and common people were 3.26, 3.20 and 3.31 respectively. The difference in esthetic scores between these three groups was not statistically significant (p > 0.05). For post-treatment images, the mean esthetic scores by the three panels; orthodontists, general dentist and common people were 6.45, 6.50 and 7.32 respectively. Esthetic scores between these three groups differed significantly (p < 0.05) with common people displaying significantly higher score than orthodontists and general dentists, however no difference was seen between orthodontists and general dentists. It was also seen that the percentage change in mean esthetic scores from pre- to posttreatment smile was significantly higher for common people as compared to orthodontist (p < 0.05) and no difference was seen between orthodontists and general dentists or common people and general dentists respectively. Conclusion Though there is no difference in perception of smile esthetics between common people, general dentists and orthodontists, the influence of orthodontic treatment on smile attractiveness is appreciated differently by the common people as compared to general dentists and orthodontists. How to cite this article Kumar P, Patil C, Nehra K, Sharma M. Influence of Orthodontic Treatment on Smile Attractiveness as perceived by Common People, General Dentists and Orthodontists. World J Dent 2016;7(1):18-22.

scholarly journals Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6753
Author(s):  
Ramona S. Oltramare ◽  
Reto Odermatt ◽  
Phoebe Burrer ◽  
Thomas Attin ◽  
Tobias T. Tauböck
Keyword(s):  
Double Bond ◽  
Repeated Measures ◽  
In Vitro Study ◽  
High Viscosity ◽  
Degree Of Conversion ◽  
Double Bond Conversion ◽  
Nanohybrid Composite ◽  
Post Hoc ◽  
One Way Anova

The aim of this in vitro study was to investigate the degree of C=C double bond conversion of high-viscosity dimethacrylate- or ormocer-based bulk-fill composites as a function of measurement depth. Four bulk-fill composites (Tetric EvoCeram Bulk Fill, x-tra fil, SonicFill, and Bulk Ormocer) and the conventional nanohybrid composite Tetric EvoCeram were applied in standardized Class II cavities (n = 6 per group) and photoactivated for 20 s at 1350 mW/cm2. The degree of conversion of the composites was assessed using Fourier-transform infrared spectroscopy at seven measurement depths (0.15, 1, 2, 3, 4, 5, 6 mm). Data were analyzed using repeated measures ANOVA and one-way ANOVA with Bonferroni post-hoc tests (α = 0.05). The investigated bulk-fill composites showed at least 80% of their maximum degree of conversion (80% DCmax) up to a measuring depth of at least 4 mm. Tetric EvoCeram Bulk Fill and Bulk Ormocer achieved more than 80% DCmax up to a measuring depth of 5 mm, x-tra fil up to 6 mm. The conventional nanohybrid composite Tetric EvoCeram achieved more than 80% DCmax up to 3 mm. In contrast to the conventional composite, the investigated ormocer- and dimethacrylate-based bulk-fill composites can be photo-polymerized in thick layers of up to at least 4 mm with regard to their degree of C=C double bond conversion.

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