Shekoufeh Mohammadi; Ladan Eslamian; Reza Motamedian
Volume 15, Issue 2 , September 2020, , Pages 1-7
Abstract
Context: The nose and lips area play an important role in facial appearance and nasolabial angle (NLA) can be considered as a determinant factor for attractiveness. The perception of beauty and attractiveness is vastly influenced by media and thus, can change with trends over time. The aim of this study ...
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Context: The nose and lips area play an important role in facial appearance and nasolabial angle (NLA) can be considered as a determinant factor for attractiveness. The perception of beauty and attractiveness is vastly influenced by media and thus, can change with trends over time. The aim of this study was to conduct a systematic review of literature on NLA in faces perceived as attractive over time and in different ethnic groups.
Evidence acquisition: This study was performed following Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) guideline. We conducted an electronic search using PubMed, Scopus, and Embase databases with the employment of MeSH and free text terms "beauty"[MeSH], "esthetics"[MeSH], "soft tissue", "nasolabial angle", "attractive" and "cephalometric analysis". The inclusion criteria were studies that indicated facial attractiveness by a panel of at least 10 judges, evaluated the soft tissue profile characteristics, and reported the preferred NLA.
Results: The search results revealed 271 related articles, of which 21 studies investigated NLA as a conducive factor in profile attractiveness and were included in the review. The range of preferred NLA was 86° to 107° for men and 84° to 123.12° for women.
Conclusions: The most pleasing lip position and subsequently NLA is influenced by variables including the observer and subject’s gender, and their ethnic background as well as time. Over all, NLA in faces perceived as attractive is more obtuse in women than men. Compared to white norms, NLA is more acute among Chinese and African-Americans, while amongst Iranian women, it is not distinctly far from north American Caucasians. Over the course of time, preferred NLA has significantly changed in women but has been unwavering in men.
Ladan Eslamian; Sara Youssefinia; Soode Mohseni
Abstract
Aim: Hearing impairment is one of the associated problems to cleft palate; although it affects language development, it has rarely been noticed in literature. The aim of this study is evaluating cleft palate patients’ hearing condition and the relationship of different incorporated elements with ...
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Aim: Hearing impairment is one of the associated problems to cleft palate; although it affects language development, it has rarely been noticed in literature. The aim of this study is evaluating cleft palate patients’ hearing condition and the relationship of different incorporated elements with their hearing. Materials and methods: Forty-two patients with cleft palate (23 males and 19 females) were selected among patients referring to orthodontic department of Shahid Beheshti university and Nime Sha’ban dental clinic of Kerman, their files were surveyed according to audiometric and tympanometric tests (A,B and C). Likewise the relationship of other factors including age, gender, type of cleft (unilateral, bilateral), history of previous reconstructive surgery and presence of oronasal fistula were studied on hearing. Chi-square and t-tests were used to analyze the data. Results: Twenty-three patients (54.7%) had one ear or both ears mild conductive hearing loss; and tympanogram-B was observed in 38 ears from 84 ears. These disorders were mostly observed in younger patients. Gender and type of cleft had no relationship with hearing condition. The average of hearing threshold in patients who had cleft palate surgery and patients without oronasal fistula was lower than other groups. Conclusion: Hearing problem was observed in more than %50 of the studied patients; which determines the need for proper examination and diagnosis following by predetermined treatment protocols.
Rahman Showkatbakhsh; Abdolreza Jamilian; Ladan Eslamian
Abstract
Aim: The main goal of this study was to compare the effects of a differently designed functional appliance (R-appliance) with a bionator treated group in Class II Division I (C1 II Div I) cases.Materials and Methods: 22 patients (12 girls, 10 boys) treated with R-Appliance were selected as experimental ...
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Aim: The main goal of this study was to compare the effects of a differently designed functional appliance (R-appliance) with a bionator treated group in Class II Division I (C1 II Div I) cases.Materials and Methods: 22 patients (12 girls, 10 boys) treated with R-Appliance were selected as experimental group. Control group consisted of 22 patients (11 boys, 11 girls) treated with a bionator. All of the patients had a C1 II Div I malocclusion due to mandibular deficiency. Lateral cephalograms were analyzed at the beginning (T1, T 1) and the end of the study (T 2, T 2).Results: Paired T-test showed that SNB significantly increased in both groups. The same test revealed that IMPA was reduced in the R-appliances treated group by 4.5°±3.5° (P<0.001) but it was increased by 1.9°±3.9° (P<0.03) in the bionator group. Analysis utilizing T-test showed that the inter group difference of IMPA was statistically significant (P<0.01). SNA showed an increase of 0.1°±1.6° (P<0.9) in the R-appliance treated group; while, it was decreased for 0.4°±0.9° (P<0.1) in the bionator treated group.
Conclusions: Both groups were successful in advancement of mandible; however, the R-appliance achieved this result without retroclination of the lower incisors.
