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 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.

Comparison of Maxillary Central Inclination, Crown Angulation and Tooth Size Variation in Aesthetic and Non-aesthetic Smiles, A Cross Sectional Study

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Tarulatha Revanappa Shyagali ◽  
Rachita Singh ◽  
Anil Tiwari ◽  
Abhishek Gupta
Keyword(s):  
Size Variation ◽  
Cross Sectional Study ◽  
Tooth Size ◽  
Central Incisor ◽  
Cross Sectional ◽  
Maxillary Central Incisor ◽  
Normal Occlusion ◽  
Lateral Cephalograms ◽  
Significant Difference ◽  
The Aesthetic

Background: An attractive smile is often attributed to incisor alignment and proclined or retroclined incisors could contribute to a less aesthetic smile. Objectives: This study was aimed to evaluate the maxillary central incisor crown inclination, crown angulation and tooth size variation in aesthetic and unattractive smiles. Methods: This study was conducted among 100 females (equally divided into aesthetic and unaesthetic smile groups), aged between15 - 25 years, with Angle’s Class I normal occlusion and balanced profiles. Variations in maxillary central incisor crown inclination and angulation were measured on lateral cephalograms, photographs and the study models of the subjects. Variations in tooth morphology were also evaluated by measuring crown height and width in both groups. Mann-Whitney U test was performed to evaluate the difference between the aesthetic and unaesthetic smiles. P < 0.05 was considered as significant. Results: This study showed that incisor angulation was significantly higher in the unaesthetic group compared to the aesthetic group (P < 0.001). However, there was no statistically significant difference for the incisor inclination relative to the Palatal Plane between the aesthetic and unaesthetic smile groups (P = 0.086). In addition, there were significant differences between the aesthetic and the non-aesthetic groups regarding the central incisor height (P < 0.05). Conclusions: The findings of this study indicate that the possible variations in aesthetics are related to the ethnic elements that are associated with differences in crown angulations, as well as tooth size.

Dental implants in aesthetic zone – cases report

2021 ◽  
Vol 12 (47) ◽  
pp. 46-54
Author(s):  
Adel Martínez ◽  
Ángel Yamith Sánchez ◽  
Samuel Urbano Del-Valle
Keyword(s):  
Bone Regeneration ◽  
Dental Implants ◽  
Dental Implant ◽  
Traditional Approach ◽  
Dental Extraction ◽  
Insertion Torque ◽  
Second Phase ◽  
Central Incisor ◽  
The Aesthetic ◽  
Preservation Technique

Placement of dental implants in the aesthetic zone needs to be planned to consider both atraumatic tooth extraction and the preservation of the socket. The authors presented two clinical cases of patients with indication of dental extraction of the upper central incisor which was planned to use a two-armed lever as atraumatic alveolar preservation technique and managed in two different ways. Case one referred to a traditional approach that included dental extraction, guided bone regeneration, and provisionalization, with a period of healing of 6 months to enable the bone regeneration. Subsequently, it was placed a dental implant TSV 3.7*13 mm (Zimmer Dental). Five months after of clinical and radiographic controls, the second phase was started with the rehabilitation. The second case was about a patient who required dental extractions of maxillary left central incisor due to a fracture of the crown with a poor prognosis, in which the dental extraction was planned to use a two-armed lever. After reclassifying the fresh socket, a dental implant TSV of 3.7 x 13 mm (Zimmer Dental) was placed with modified drilling technique, implant placement resulted in primary fixation with insertion torque level lower than 30 Ncm so the immediate load was not performed. Both patients received a ceramic crown with functional and esthetic results after 16 months of continuous checks and controls. It was concluded that the alveolar preservation in the aesthetic zone is a strategy that starts from the extraction technique. The authors recommend the two-armed lever as atraumatic alveolar preservation technique and different ways to place dental implants.

Implante imediato e estética imediata em reabilitação de incisivo central superior fraturado – relato de caso

2021 ◽  
Vol 12 (47) ◽  
pp. 8-15
Author(s):  
Tárcio Hiroshi Iskimine Skiba
Keyword(s):  
Clinical Case ◽  
Bovine Bone ◽  
Central Incisor ◽  
Root Fracture ◽  
Maxillary Central Incisor ◽  
Connective Tissue Graft ◽  
Subepithelial Connective Tissue Graft ◽  
Aesthetic Aspect ◽  
The Aesthetic ◽  
Immediate Implantation

The use of dental implants in dentistry is becoming increasingly widespread and popular for the treatment of patients with doomed dental elements. The biotechnology applied to the development of macro and micro design of implants allows its use in increasingly borderline beds, such as in post-extraction sockets with reduced bone remainder, and may even allow the making of provisionals in order to confer aesthetics and help in maintenance of support tissues. This paper aims to present a clinical case report of minimally invasive extraction of a maxillary central incisor with root fracture, immediate implantation in a post-extraction socket, subepithelial connective tissue graft and lyophilized bovine bone to fill the GAP, as a pillar installation. angled and immediate provisional. The technique proved to be effective and satisfactory, I try in the aesthetic aspect as to the functional, promoting the health and stability of the adjacent tissues.

scholarly journals Analysis of smile esthetics in American Board of Orthodontic patients

2013 ◽  
Vol 84 (3) ◽  
pp. 486-491 ◽  
Author(s):  
Sercan Akyalcin ◽  
Leslie K. Frels ◽  
Jeryl D. English ◽  
Stephen Laman
Keyword(s):  
Stepwise Regression ◽  
Positive Association ◽  
Inclusion Criteria ◽  
Significant Difference ◽  
Standard Deviation Range ◽  
Orthodontic Patients ◽  
The Common ◽  
The Mean ◽  
General Dentists ◽  
Smile Esthetics

ABSTRACT Objective: To investigate the common denominators of an esthetically pleasing smile in patients who were considered to be successfully treated upon the submission to American Board Orthodontics (ABO) clinical examination. Material and Methods: A total of 462 patients were examined. Ninety subjects that fulfilled the inclusion criteria were included. Standardized digital smile photographs of the subjects were rated by 30 panel members, including orthodontists, general dentists, and parents of orthodontic patients, using a numeric version of the visual analog scale. Three groups were formed using the mean esthetic score ± standard deviation range: unattractive (n  =  21), average (n  =  47), and attractive (n  =  22) smiles. Eleven smile characteristics were digitally measured on the photographs and compared between the groups using one-way analysis of variance and χ2 tests. Additionally, regression analyses were used to investigate the association of the smile characteristics with the esthetic score. Results: A significant difference was found between the three groups for the comparison of smile arc relationship (P &lt; .001). When all the variables used in this study were entered in the regression analysis, a positive association was found (r  =  0.658; r2  =  0.434; P &lt; .001). Additionally, two models were defined using stepwise regression. The first model included the smile arc (r  =  0.478; r2  =  0.228; P &lt; .001), and the second model had both the smile arc and right gingival display/visible dentition display ratio (r  =  0.567; r2  =  0.321; P &lt; .001). Conclusions: A harmonious smile arc relationship and less gingival display during a smile are significantly associated with smile attractiveness in patients considered successfully treated according to ABO standards.

scholarly journals Unconventional Endodontics for the Aesthetic Rehabilitation of Fractured, Discolored and Rotated Maxillary Central Incisor

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
O Pavan Kumar ◽  
Prathibha Paturu ◽  
E. Sandhya Rani ◽  
Kalaivani Muralidasan ◽  
N. Narendra Kumar
Keyword(s):  
Case Report ◽  
Root Canal ◽  
Central Incisor ◽  
Class Iii ◽  
Clinical Procedure ◽  
Traumatic Injuries ◽  
Maxillary Central Incisor ◽  
Predictable Pattern ◽  
Metal Ceramic ◽  
The Aesthetic

Management of traumatic injuries to the teeth is a challenge to the practicing dentist. It has no prescriptive method for occurring, possesses no significant predictable pattern of intensity or extensiveness and occurring at times when dentists are least prepared for it. Ninety-two percent of traumatic injuries results in fracture of maxillary permanent central incisors because of its protrusive and anterior positioning. The young permanent maxillary central incisor root canal chamber is large and tapered. This case report describes the management of Ellis Class III fractured tooth in a young permanent maxillary central incisor by an innovative clinical procedure. Keywords: tooth fracture, cast post core, trauma, metal ceramic

scholarly journals Do various degrees of tooth decalcification affect orthodontists', general dentists' and laypersons' ratings of smile esthetics?

2020 ◽  
Vol 90 (3) ◽  
pp. 405-410
Author(s):  
Iyad Al-Omari ◽  
Zaid Al-Bitar ◽  
Ahmad M. Hamdan
Keyword(s):  
Visual Analogue Scale ◽  
Analogue Scale ◽  
Orthodontic Treatment ◽  
White Spot ◽  
White Spot Lesions ◽  
Matched Sample ◽  
Anterior Teeth ◽  
General Dentists ◽  
Smile Esthetics ◽  
Study Participants

ABSTRACT Objectives To compare the effect of various degrees of decalcification after orthodontic treatment (white spot lesions) on orthodontists', general dentists', and laypersons' ratings of smile esthetics. Materials and Methods Eight photographs representing incrementally altered tooth decalcification lesions of maxillary anterior teeth ranging from mild to severe were shown randomly to the study participants. Photographs were rated by a matched sample of orthodontists (N = 42), general dentists (N = 52), and laypeople (N = 58). A visual analogue scale (VAS) was used to assess perceptions of smile esthetics. Results The three groups of raters could distinguish between different decalcification levels. Raters gave more negative scores as the decalcification level increased. Conclusions The three groups of raters were able to distinguish between various degrees of decalcification lesions. General dentists were the most critical of all groups when rating decalcification lesions.

scholarly journals Unconventional prosthodontics for the aesthetic rehabilitation of discoloured rotated maxillary central incisor

2013 ◽  
Vol 2013 (jul26 1) ◽  
pp. bcr2013200048-bcr2013200048
Author(s):  
K. Singh ◽  
N. Kumar ◽  
N. Choudhary ◽  
N. Gupta
Keyword(s):  
Central Incisor ◽  
Maxillary Central Incisor ◽  
The Aesthetic

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 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.

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