Measurement of Facial Soft Tissue Mobility in Man

Trotman, Carroll Ann; Stohler, Christian S.; Johnston, Lloyd D.

doi:10.1597/1545-1569(1998)035<0016:mofstm>2.3.co;2

Cited by 33 publications

(48 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Error in specifying position with the system approximated 0.53 mm (SD ϭ 0.45 mm). 8 Additional details regarding the system, calibration, data digitization, and processing can be found in Trotman et al 8 …”

Section: Instrumentmentioning

confidence: 99%

See 1 more Smart Citation

Three-Dimensional Nasolabial Displacement during Movement in Repaired Cleft Lip and Palate Patients

Trotman

Faraway

Essick

2000

Plastic & Reconstructive Surgery

Self Cite

View full text Add to dashboard Cite

Section: Instrumentmentioning

confidence: 99%

“…For the latter, a face bow was attached to the splint and carried three reference markers. 8,9 Because the markers were referenced to the cranium, their movement during the facial animations solely reflected head motion, by which the movements of soft-tissue landmarks could be adjusted.…”

Section: Part 1: Adjustment For Head Motionmentioning

confidence: 99%

Three-Dimensional Nasolabial Displacement during Movement in Repaired Cleft Lip and Palate Patients

Trotman

Faraway

Essick

2000

Plastic & Reconstructive Surgery

Self Cite

View full text Add to dashboard Cite

“…However, facial movements have been scarcely studied in relation to specific hemispheric stimulation. An evaluation of facial movement often plays a role in the assessment of patients with facial motor deficits, in planning facial reconstructive surgery [8][9][10] , and in a evaluation of neuropsychological functions associated with behavioral, language, and learning disabilities 11 .…”

mentioning

confidence: 99%

Handedness of children determines preferential facial and eye movements related to hemispheric specialization

Arteaga¹,

Poblano²

2008

Arq. Neuro-Psiquiatr.

View full text Add to dashboard Cite

-Background: Despite repeated demonstrations of asymmetries in several brain functions, the biological bases of such asymmetries have remained obscure. Objective: To investigate development of lateralized facial and eye movements evoked by hemispheric stimulation in right-handed and left-handed children. Method: Fifty children were tested according to handedness by means of four tests: I. Mono-syllabic non-sense words, II. Tri-syllabic sense words, III. Visual field occlusion by black wall, and presentation of geometric objects to both hands separately, IV. Left eye and the temporal half visual field of the right eye occlusion with special goggles, afterwards asking children to assemble a three-piece puzzle; same tasks were performed contralaterally. Results: Right-handed children showed higher percentage of eye movements to right side when stimulated by tri-syllabic words, while left-handed children shown higher percentages of eyes movements to left side when stimulated by the same type of words. Left-handed children spent more time in recognizing non-sense mono-syllabic words. Hand laterality correlated with tri-syllabic word recognition performance. Age contributed to laterality development in nearly all cases, except in second test. Conclusion: Eye and facial movements were found to be related to left-and right-hand preference and specialization for language development, as well as visual, haptic perception and recognition in an age-dependent fashion in a complex process.KEY WORDS: handedness, language, haptic perception, visual perception, left and right hemispheres, brain specialization.La lateralidad manual determina la preferencia motora ocular y facial en relación con la especialización hemisférica en niños Resumen -Contexto: A pesar de las repetidas demostraciones de asimetría en varias funciones cerebrales, sus bases biológicas permanecen no bien conocidas aún. Objectivo: Investigamos el desarrollo de la lateralización de los movimientos faciales y oculares provocados por la estimulación hemisférica preferencial en niños diestros y zurdos. Método: Se examinaron 50 niños que se dividieron de acuerdo a su lateralidad manual, se les aplicaron 4 pruebas: I. Discriminación de palabras mono-silábicas sin-sentido, II. Palabras tri-silábicas con sentido III. Oclusión mono-ocular y discriminación táctil de figuras geométricas por cada mano. IV. Oclusión del ojo izquierdo y de la mitad temporal del campo visual derecho y después contralateralmente solicitando al niño armar un rompecabezas de 3 piezas. Resultados: Los niños diestros mostraron un mayor porcentaje de movimientos oculares hacia la derecha cuando se les estimuló con palabras trisilábicas, mientras los zurdos presentaron más movimientos oculares hacia la izquierda con el mismo tipo de palabras. Los niños zurdos usaron más tiempo para reconocer las palabras monosilábicas sin sentido. La lateralidad correlacionó con la discriminación de palabras trisilábicas. La edad contribuyó significativamente al desarrollo de la lateralidad en todas las pr...

show abstract

“…1 Currently, 3D measures generated from video-based tracking techniques are regarded as the most valid approach to record and evaluate facial movements. [2][3][4][5][6][7][8][9][10] For the correction of facial disfigurements caused by dentofacial deformities, the standard procedure is orthognathic surgery. This type of surgery is reasonably predictable and results in a harmonization of facial skeletal structures.…”

mentioning

confidence: 99%

Modeling facial movement: II. A dynamic analysis of differences caused by orthognathic surgery

Nooreyazdan¹,

Trotman

Faraway

2004

Journal of Oral and Maxillofacial Surgery

Self Cite

View full text Add to dashboard Cite

Purpose-The purpose of this study was to determine the facial movement characteristics of patients who underwent orthognathic surgery. The specific aims were to determine the presurgery versus postsurgery differences in facial movements; to determine whether the presurgery facial movements were similar among patients with different dentofacial deformities; and to determine whether patients have a more similar post-than presurgery dentofacial morphology and soft tissue movement. The hypothesis was that there are differences between the pre-and postsurgery facial movements.Patients and Methods-The sample consisted of 19 patients (11 women, 8 men) with a mean age of 20.6 years (SD ± 8.34). Facial movement and lateral cephalometric data were collected at presurgery, and at 6 and 12 months postsurgery. Measures of the facial skeletal differences were made from lateral cephalometric radiographs and facial movements were recorded by a videobased tracking system. Descriptive and inferential statistics were performed on principal component scores generated from the movement data. A linear mixed-effects model was used to test for significant differences in movement.Results-Differences were found between the presurgery and 12-month postsurgery visits for the instructed smile, lip purse, eye closure, grimace, and mouth opening movements as well as the natural smile. Also, there were significant differences at presurgery among the dentofacial groups for the lip purse movement but no differences were found at postsurgery for any of the movements.Conclusion-These findings suggest that facial movements are effected by skeletal malocclusion and orthognathic surgical procedures.Facial appearance and our expressive behaviors have a major impact on how we are perceived and how others in society perceive us. For an individual with a facial functional impairment and/or disfigurement, however, these interactions and associated perceptions Early methods to evaluate facial impairments were based on 2-dimensional (2D) measures; however, because of a lack of information in all planes of space and a resultant oversimplification of the findings, 3-dimensional (3D) measures are now preferred. 1 Currently, 3D measures generated from video-based tracking techniques are regarded as the most valid approach to record and evaluate facial movements. [2][3][4][5][6][7][8][9][10] For the correction of facial disfigurements caused by dentofacial deformities, the standard procedure is orthognathic surgery. This type of surgery is reasonably predictable and results in a harmonization of facial skeletal structures. 11-13 Much less is known, however, about the pre-and postsurgery facial soft tissue function in orthognathic surgery patients, and whether impairments in movement exist in association with the skeletal deformity. Previous research has suggested that patients with severe skeletal deformities have impairments in movement outside the range of that seen in unaffected individuals. 9 If functional impairments exist presurgically in orthognat...

show abstract

Measurement of Facial Soft Tissue Mobility in Man

Abstract: Our results argue that tracking instrumentation is a potentially useful tool in the measurement of facial mobility.

Cited by 33 publications

References 0 publications

Three-Dimensional Nasolabial Displacement during Movement in Repaired Cleft Lip and Palate Patients

Three-Dimensional Nasolabial Displacement during Movement in Repaired Cleft Lip and Palate Patients

Handedness of children determines preferential facial and eye movements related to hemispheric specialization

Modeling facial movement: II. A dynamic analysis of differences caused by orthognathic surgery

Contact Info

Product

Resources

About