The perceptions of preclinical and clinical dental students to altered smile aesthetics

Aljefri, Maha

doi:10.1038/s41405-020-00045-2

Cited by 6 publications

(7 citation statements)

References 26 publications

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“…In similar study clinical students ranked a midline diastema to be significantly lower than preclinical students who perceived the smile with retroclined incisors as significantly less pleasing than the clinical students. Together with midline diastema, open bite was perceived as an unfavorable feature by both year-groups [ 37 ].…”

Section: Discussionmentioning

confidence: 99%

Influence of education level and gender of dental students on perception of dental aesthetics

Kovačić,

Miloš,

Kurkutović

et al. 2024

BMC Oral Health

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Background Fulfilling aesthetic norms is an imperative of modern society. Accordingly, aesthetics has found its important role in dental medicine. The aim was to study whether there is a difference in the perception of tooth shade change and anatomical variations of anterior maxillary teeth among dental students depending on the level of education, gender, and experience in assisting in a dental office. Methods The research was conducted among dental students via the Google Forms platform. Students evaluated the aesthetic acceptability of a smile on the unaltered, reference photograph (RP) and on the other 28 photographs in which the tooth shade (lighter and darker teeth), length (shortened central incisors, elongated, and beveled lateral incisors, elongated canines) and position (atypical and typical rotations and diastemas) of the upper maxillary teeth were altered by digital manipulation. The 1–10 assessment scale was used. Statistical analysis comprised one-way Kolmogorov-Smirnov test, X2 tests, t-test, and 3-way MANOVA. Results In the research 208 students participated, 113 were preclinical students, 104 assisted in dental office and 175 were females. There were no significant effects of gender regarding length and position modifications (p > .05), while women were stricter in evaluation of lighter shade (p < .05). Clinical students were stricter in evaluating all manipulated photographs (MP) except those towards darker shade modifications, while assisting in a dental office or having a dentist in close family showed no significant effects (p > .05). Conclusions With a higher level of targeted academic education, dental students sharpen their ability to notice deviations from the aesthetic norms of a smile.

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Section: Discussionmentioning

confidence: 99%

Influence of education level and gender of dental students on perception of dental aesthetics

Kovačić,

Miloš,

Kurkutović

et al. 2024

BMC Oral Health

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show abstract

“…While [ 29 ] reported that two-thirds of dental students thought the asymmetry of 2 mm was normal, Alhammadi et al [ 17 ] reported that dental students thought the asymmetry of 4.21 ± 1.13 mm was normal. At the same time, it was considered acceptable, according to [ 37 , 38 ]. In contrast, 91.0% of students did not find the midline shift attractive [ 39 ].…”

Section: Discussionmentioning

confidence: 99%

“…These results are comparable to those described in [ 10 , 41 ], verifying the impact of structures adjacent to the smile on the perception of upper dental midline deviations in 1 mm. On the other hand, [ 38 , 39 ] studied midline inclinations in an asymmetrical nose and chin and found them to influence perception. Silva and colleagues [ 42 ] observed that laypeople preferred canting of the dental midline in the same direction as the deviation of the nose and chin rather than the opposite.…”

Section: Discussionmentioning

confidence: 99%

Effect of the ethnic, profession, gender, and social background on the perception of upper dental midline deviations in smile esthetics by Chinese and Black raters

et al. 2023

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Abstracts Background The purpose of this study was to compare the perception of upper dental midline deviation on the attractiveness of a smile among raters from different ethnicities, professions, genders, and ages and measure to what extent the presence or absence of the associated smiling structures influence the raters' evaluations. Methods A male subject (26 years of age) with adequate smile characteristics was selected by 3 experienced orthodontists, and 561 raters from 2 different ethnic groups (281 Chinese raters and 280 Black raters) rated the subject's smile after the subject's upper dental midline was digitally altered from 0 to 5 mm using a 5-point Likert scale on 12 smile photographs divided into two groups: group 1, in the presence of smile related structures, two-thirds of the nose, lips, and chin (NLC), and group 2, in the absence of smile related structures, the lips only (L). Results There were statistically significant differences (p < 0.05) between the two ethnicities, in 2 mm and 4 mm in-group NLC and 5 mm in-group L, as well as the raters' profession to each midline shift of both groups (NLC) and (L) for both ethnicities except for 0 mm. Regarding the role of associated smile structures, the smile photos were observed in the presence of smile-associated structures, and in its absence (NLC × L), statistically significant differences (p < 0.05) were found when the deviation was 5 mm among the Chinese raters; in 1 mm, and 4 mm among the Black raters. Among different genders, statistical differences were only reported (p < 0.05) for Chinese raters for 5 mm in NLC, while statistical differences were observed for 2 mm and 3 mm in NLC for Black raters. For age categories, differences were observed (p < 0.05) for 4 mm, 5 mm in NLC and 4 mm, and 5 mm in L for Chinese raters, while 5 mm in NLC and 1 mm in L for Black raters. Conclusion Perception of the upper dental midline deviations was influenced by the factors of ethnicity, profession, presence or absence of smile-associated structures, as well as the gender and age of the raters.

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“…From 4th to 6th year, students attend more dental courses and clinical practicals; hence they are more critical to small deviations from an ideal smile. Many studies were conducted to investigate the students’ perceptions of altered smile esthetics ( 13 - 15 ) but these studies comprised only symmetric situations. The results obtained in our study show that we should have a very good communication with patients to avoid “overtreating” them if they have gingival asymmetry of 2 mm or less.…”

Section: Discussionmentioning

confidence: 99%

Impact of Gingival Margin Asymmetries on the Smile Esthetic Perception of Dental Specialists, Doctors of Dental Medicine, Students, and Laypeople: a Comparative Pilot Study

Šarac¹,

Milošević²,

Vražić³

et al. 2022

Acta Stomatol Croat

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Objective To evaluate the perceptions of altered incisor gingival position among dental specialists, dentists, dental students, and laypeople. Materials and methods Four digital smile photographs with altered gingival margin position of the right maxillary incisor (0, 1, 2, and 3 mm) were presented to a sample of 232 respondents (71.1% female; 28.9% male): 42 dental specialists, 63 dentists, 33 dental students (1 st to 3 rd year), 38 dental students (4 th to 6 th year) and 56 laypeople. The questionnaire consisted of four randomly displayed photographs, administered via Google Form, and respondents were asked to rate the images on a scale from 1 to 5, from the least attractive to the most attractive. A statistical analysis was performed using the TIBCO Statistica program (v. 13.3. 0, TIBCO Software Inc., Palo Alto, CA, USA; 2017). According to the Shapiro- Wilk's test, the data were not distributed normally. The Kruskal-Wallis test with post hoc multiple comparisons with the Bonferroni adjustment were used to compare group esthetic scores and to determine the threshold levels of deviation at which each group was discriminated between esthetic and non-esthetic situations. Results Median values of esthetic scores decreased in all groups as the gingival asymmetries increased. Dental professionals were significantly more critical of esthetics than laypeople in all levels of asymmetry. The greatest difference was found for 2 mm of gingival asymmetry (p=0.002). Conclusion From the results of our study, we can conclude that the perception of gingival asymmetries in the esthetic zone of smile differs among dental specialists, doctors, students, and laypeople. Dental specialists, doctors, and clinical students were more critical of these asymmetries, while preclinical students and laypeople noticed only 2 mm or more of gingival asymmetry of central incisors.

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The perceptions of preclinical and clinical dental students to altered smile aesthetics

Cited by 6 publications

References 26 publications

Influence of education level and gender of dental students on perception of dental aesthetics

Influence of education level and gender of dental students on perception of dental aesthetics

Effect of the ethnic, profession, gender, and social background on the perception of upper dental midline deviations in smile esthetics by Chinese and Black raters

Impact of Gingival Margin Asymmetries on the Smile Esthetic Perception of Dental Specialists, Doctors of Dental Medicine, Students, and Laypeople: a Comparative Pilot Study

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