Comparison of mesiodistal tooth widths in Caucasian, African and Japanese individuals with Brazilian ancestry and normal occlusion

Fernandes, Thaís Maria Freire; Sathler, Renata; Natalício, Gabriela Letícia; Henriques, José Fernando Castanha; Pinzan, Arnaldo

doi:10.1590/s2176-94512013000300021

Cited by 32 publications

(29 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is worth mentioning, that tooth size and morphology varies from one population to the other. Published data has in fact shown differences, not only between, but within ethnic groups as well (Lee, 1977, Keene, 1979, Tsukiyama et al, 2012, Fernandes et al, 2013). Early on, Bailit (1975) emphasized that clinicians should essentially consider minor differences in dental traits among population types as such variations may possibly influence the prosthodontic restoration of an aesthetic smile.…”

Section: Introductionmentioning

confidence: 99%

“…The width and/or length ratios of maxillary anterior teeth has been studied universally for different populations and ethnicities including Kenyan and British (Turner and Richardson, 1989), Caucasian (Sterrett et al, 1999, Rosenstiel et al, 2000), Turkish (Hasanreisoglu et al, 2005), Jordanian (Ali Fayyad et al, 2006), Asian (Marcuschamer et al, 2011, Tsukiyama et al, 2012), Indian (Chander et al, 2012, Meshramkar et al, 2013), Hungarian (Forster et al, 2013), Portugese (Calçada et al, 2014), Korean (Jin et al, 2016), and Iraqi (Al-Kaisy and Garib, 2017) populations. Fernandes et al (2013) investigated mesiodistal tooth widths in Caucasian, African and Japanese individuals. Parciak et al (2017) investigated the relationship between mesiodistal dimensions of maxillary anterior teeth and specific facial dimensions in Asian, African-American, and white ethnicities.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of “Golden Proportion” in Saudi individuals with natural smiles

Swelem

Al-Rafah

2019

The Saudi Dental Journal

View full text Add to dashboard Cite

Background The Golden Proportion (GP) has been considered by many as the most harmonious recurrent tooth-to-tooth ratio and has long been proposed as an aesthetic guideline for restoring/replacing maxillary anterior teeth. Researchers investigated GP in various populations. Purpose The aim of the current study was to investigate the occurrence and prevalence of the GP between the perceived widths of maxillary anterior teeth in a Saudi population with natural smiles. Materials and Methods A total of 360 Saudi dental students (180 males and 180 females) with natural smiles and who met the inclusion criteria were included in the study. Frontal photographs were captured for all participants while maximally smiling using a digital camera with standardized settings. Photo-editing software was used to measure the perceived mesiodistal width of each anterior maxillary tooth in all digital images. Paired and student t -tests were performed to detect side and/or gender differences respectively. Calculated ratios of the perceived mesiodistal widths of the teeth were compared with their respective GP values using a one sample t -test. Statistical significance was set at 5%. Results For both genders, there were significant differences (P < 0.001) between the calculated ratios and the golden ratios. No side differences in the GP were detected. Males had wider teeth than females however significant differences between genders was detected for the centrals (P < 0.001) only. Conclusions Width ratios of the maxillary anterior teeth did not follow the GP for the examined Saudi population. Males had wider anterior teeth with the centrals exhibiting a significant gender-based difference. There was no side-dependent variation for both genders.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of “Golden Proportion” in Saudi individuals with natural smiles

Swelem

Al-Rafah

2019

The Saudi Dental Journal

View full text Add to dashboard Cite

show abstract

“…The loading points used were those shown in Fig. 4, and were chosen based on a report by Fernandes et al 20) The eccentric point was intended to simulate contact at the center of the occlusal surface of the mandibular second premolar tooth and the center of the occlusal surface of the mandibular first molar. The centric point was intended to simulate contact at the center of the occlusal surface of the mandibular first molar, as close to the screw as possible without directly applying an external force to the screw.…”

Section: Test Conditions and Methodsmentioning

confidence: 99%

Influence of the difference between implant body and screw materials on abutment screw loosening

Shinohara

Ueda

Watanabe

2019

Dental Materials Journal

View full text Add to dashboard Cite

The purpose of this study was to investigate how differences in dental implant and screw materials affected screw loosening. Screws (pure titanium; Ti4S, titanium alloy; TiAS), blocks (Y-TZP; ZrB, pure titanium; Ti4B) and plates (Y-TZP; ZrP), representing abutment screws, implant bodies and superstructures, respectably, were used. Plates were fastened to blocks by screws using a torque of 20 N•cm, and the loosening torque was measured after cyclic loading. Tests was performed on 13 specimens per group, with four groups for loading at the eccentric point (9 mm from screw center) and one group at the centric point (3 mm from screw center). In eccentric point tests, Ti4S screws led to significantly more loosening than TiAS screws (p<0.01). The block material had no effect. For ZrB-Ti4S, there was no difference in loosening before and after the centric point tests. More loosening occurred for eccentric point than for centric point tests (p<0.05).

show abstract

“…An average molar width was calculated from these measurements to be 11.5 mm, which was considered a reasonable estimate across different ages, sexes, and ethnicities based on similar averages reported in the odontometric literature for mandibular molar widths in American populations. 17,18…”

Section: Methodsmentioning

confidence: 99%