Relationship between the morphology of the maxillary central incisor and horizontal and vertical measurements of the face

Furtado, Gisela Crippa; Furtado, Álvaro Porto Alegre; Haje, Ossam Abu El; Butignon, Luís Eduardo; Pesqueira, Aldiéris Alves; Paranhos, Luiz Renato

doi:10.4103/0970-9290.135914

Cited by 5 publications

(7 citation statements)

References 25 publications

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“…Skeletal factors, such as the ratio of the anterior/posterior facial height to the gonial angle, are directly connected to the bite force 36,37 . In addition, normality showed greater occlusal forces than in patients with dolichofacial abnormalities, whereas patients with brachyfacial abnormalities had even greater bite forces than those with normality 38 . Because most existing studies investigated the bite force, it is difficult to make an absolute comparison with this study that investigated MP.…”

Section: Discussionmentioning

confidence: 89%

“…36,37 In addition, normality showed greater occlusal forces than in patients with dolichofacial abnormalities, whereas patients with brachyfacial abnormalities had even greater bite forces than those with normality. 38 Because most existing studies investigated the bite force, it is difficult to make an absolute comparison with this study that investigated MP. In our study results, similar to the study results using the bite force listed above, the greater the hypodivergency, the higher the mastication efficiency was observed.…”

Section: Discussionmentioning

confidence: 99%

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Relation Between Masticatory Performance and Skeletal Properties in Patients With Skeletal Class III Malocclusion

Lim,

Song,

Park

et al. 2024

Journal of Craniofacial Surgery

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This study aimed to measure masticatory performance (MP) using β-carotene gummy jelly to investigate its relationship with skeletal properties in decompensated patients diagnosed with skeletal class III malocclusion. The study included 78 patients (38 men and 40 women) diagnosed with skeletal class III malocclusion without temporomandibular joint disorder and periodontal disease. MP was measured using a new masticatory measuring device and β-carotene in the gummy jelly. Lateral and posteroanterior cephalograms were obtained, and skeletal properties (Me deviation, ANB, SNB, APDI, Wits, ODI, facial axis, body length, ramus length, SN-GoGn, anterior facial height, posterior facial height, saddle angle, articular angle, and gonial angle) were evaluated. MP differences according to age and sex and the effect of skeletal properties on MP were analyzed using multiple linear regression analysis. The MP of all patients was 3690.55±1428.77 mm², MP of the male group was 4043.05±1498.09 mm², and MP of the female group was 3355.68±1272.19 mm². Among the items investigated, the variable that affected MP was posterior facial height. Posterior facial height showed a positive correlation (P=0.022). There was no significant difference between MP and other skeletal properties (P>0.05). The severity of the hypodivergency in skeletal class III could affect MP. The relationship between facial asymmetry or skeletal relation and MP could not be explained in this study.

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Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Relation Between Masticatory Performance and Skeletal Properties in Patients With Skeletal Class III Malocclusion

Lim,

Song,

Park

et al. 2024

Journal of Craniofacial Surgery

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“…They further warned the deliberate application of any such ratios as strong relationship could not be verified between maxillary central incisor proportion and facial proportion. Furtado et al 29 found that none of the horizontal or vertical measurements of the face could predict the dimensions of maxillary central incisor crown.…”

Section: Discussionmentioning

confidence: 99%

Maxillary central incisor dimensions and its association with lower anterior facial height

Gyawali

Singh

2016

J Coll Med Sci-Nepal

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Introduction: Maxillary anteriors are the major teeth displayed during the smile and have a dominant role in the dentofacial appearance. As the dimensions of incisors vary with various facial dimensions, this study aimed to find out the ratio of width to height of the maxillary central incisor and correlate it with the lower anterior facial height.Materials and methods: One hundred participants (50 male and 50 female) were enrolled in this study. The width-height ratio of maxillary central incisor was calculated by measurements made in the photographs with Image J software. Lower anterior facial height was measured as the distance between subnasale and lower border of the chin with the help of digital vernier caliper. Correlation between width-height ratio and lower anterior facial height was done with Pearson’s correlation.Results: The width height ratio of maxillary central incisor was found to be 0.86 for male and 0.89 for female. This ratio was statistically insignificant when compared between gender and sides. There was negligible correlation between this ratio and lower anterior facial height.Conclusion: Mean Width-height ratio of maxillary central incisor obtained from this study would serve as a guide in esthetic enhancement of the maxillary anterior dentition.

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“…Previous studies have shown that greater gonial angles provide an inferior level system for the elevator muscles and smaller perpendicular vectors to the occlusal table [ 28 ]. As well, patients with no abnormalities experience greater occlusal forces than patients with dolichofacial abnormalities, whereas patients with brachyfacial abnormalities have even greater bite forces [ 29 ]. This information is useful in the planning of implant treatment or rehabilitation after periodontal therapy [ 2 , 3 ].…”

Section: Discussionmentioning

confidence: 99%

A three-dimensional finite element analysis of the relationship between masticatory performance and skeletal malocclusion

Park

Shin

Yul

et al. 2015

J Periodontal Implant Sci

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PurposeThe aim of this study was to evaluate the transfer of different occlusal forces in various skeletal malocclusions using finite element analysis (FEA).MethodsThree representative human cone-beam computed tomography (CBCT) images of three skeletal malocclusions were obtained from the Department of Orthodontics, Yonsei University Dental Hospital, Seoul, South Korea. The CBCT scans were read into the visualization software after separating bones and muscles by uploading the CBCT images into Mimics (Materialise). Two separate three-dimensional (3D) files were exported to visualize the solid morphology of skeletal outlines without considering the inner structures. Individual dental impressions were taken and stone models were scanned with a 3D scanner. These images were integrated and occlusal motions were simulated. Displacement and Von Mises stress were measured at the nodes of the FEA models. The displacement and stress distribution were analyzed. FEA was performed to obtain the 3D deformation of the mandibles under loads of 100, 150, 200, and 225 kg.ResultsThe distortion in all three skeletal malocclusions was comparable. Greater forces resulted in observing more distortion in FEA.ConclusionsFurther studies are warranted to fully evaluate the impact of skeletal malocclusion on masticatory performance using information on muscle attachment and 3D temporomandibular joint movements.Graphical Abstract

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Relationship between the morphology of the maxillary central incisor and horizontal and vertical measurements of the face

Cited by 5 publications

References 25 publications

Relation Between Masticatory Performance and Skeletal Properties in Patients With Skeletal Class III Malocclusion

Relation Between Masticatory Performance and Skeletal Properties in Patients With Skeletal Class III Malocclusion

Maxillary central incisor dimensions and its association with lower anterior facial height

A three-dimensional finite element analysis of the relationship between masticatory performance and skeletal malocclusion

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