A longitudinal study of changes in masticatory performance of patients undergoing orthognathic surgery
Identifieur interne : 000A40 ( Istex/Corpus ); précédent : 000A39; suivant : 000A41A longitudinal study of changes in masticatory performance of patients undergoing orthognathic surgery
Auteurs : Hooman M. Zarrinkelk ; Gaylord S. Throckmorton ; Edward Ellis Iii ; Douglas P. SinnSource :
- Journal of Oral and Maxillofacial Surgery [ 0278-2391 ] ; 1995.
English descriptors
- KwdEn :
- Acta odontol scand, Broadness, Broadness index, Broadness indices, Carrot, Carrot fragments, Congenital misalignment, Control group, Control subjects, Controls patients figure, Deformity, Dentoskeletal deformities, Error bars, First trial, Formula method, Graph method, Last trials, Longitudinal, Longitudinal study, Lower level, Mandibular, Mandibular movement, Mandibular prognathism, Mastication, Masticatory, Masticatory efficiency, Masticatory function, Masticatory muscles, Masticatory performance, Masticatory performance testing, Masticatory process, Maxillary, Maxillofacial surgery, Median, Median particle size, Median particle size values, Medical center, Muscle activity, Normal control values, Occlusal contact, Oral maxillofac surg, Oral rehabil, Orthodontic appliances, Orthodontic treatment, Orthognathic, Orthognathic surgery, Other hand, Particle size, Particle sizes, Patient group, Patients preoperatively, Postsurgical orthodontics, Presurgical orthodontics, Previous studies, Prognathism, Sagittal ramus split osteotomy, Seasonal changes, Sieve, Significant difference, Significant differences, Significant improvement, Single type, Sixth disc, Standard deviation, Statistical analysis, Surg, Surgery, Surgery patients, Surgical, Surgical correction, Surgical procedures, Tate, Test food.
- Teeft :
- Acta odontol scand, Broadness, Broadness index, Broadness indices, Carrot, Carrot fragments, Congenital misalignment, Control group, Control subjects, Controls patients figure, Deformity, Dentoskeletal deformities, Error bars, First trial, Formula method, Graph method, Last trials, Longitudinal, Longitudinal study, Lower level, Mandibular, Mandibular movement, Mandibular prognathism, Mastication, Masticatory, Masticatory efficiency, Masticatory function, Masticatory muscles, Masticatory performance, Masticatory performance testing, Masticatory process, Maxillary, Maxillofacial surgery, Median, Median particle size, Median particle size values, Medical center, Muscle activity, Normal control values, Occlusal contact, Oral maxillofac surg, Oral rehabil, Orthodontic appliances, Orthodontic treatment, Orthognathic, Orthognathic surgery, Other hand, Particle size, Particle sizes, Patient group, Patients preoperatively, Postsurgical orthodontics, Presurgical orthodontics, Previous studies, Prognathism, Sagittal ramus split osteotomy, Seasonal changes, Sieve, Significant difference, Significant differences, Significant improvement, Single type, Sixth disc, Standard deviation, Statistical analysis, Surg, Surgery, Surgery patients, Surgical, Surgical correction, Surgical procedures, Tate, Test food.
Abstract
Abstract: Purpose: Individuals with developmental deformities of the jaws may be less efficient at chewing food. Previous studies have reported masticatory deficiency in patients with such deformities. This study was designed to detect any changes in masticatory performance that accompany orthognathic surgery. Materials and Methods: Masticatory performance was tested in 18 patients with various jaw deformities before application of orthodontic appliances and 2 to 3 years after surgical correction of their malocclusion. A control group was tested at three 6-month intervals. The subjects chewed carrots and masticatory performance was measured using a standard sieve technique. The Rosin-Rammler equation was used to calculate the median particle size and broadness index of each set of carrots. The number of chewing cycles required for each subject to swallow one piece of carrot was also recorded. Results: A statistically significant difference in median particle size between patients and controls was found both preoperatively and postoperatively (P < .05), but no difference in median particle size or broadness index was seen between trials for controls or patients (P > .05). Conclusion: It was concluded that before surgery patients have a lower level of performance than controls and surgical correction of the malocclusion does not significantly enhance performance.
Url:
DOI: 10.1016/0278-2391(95)90331-3
Links to Exploration step
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<front><div type="abstract" xml:lang="en">Abstract: Purpose: Individuals with developmental deformities of the jaws may be less efficient at chewing food. Previous studies have reported masticatory deficiency in patients with such deformities. This study was designed to detect any changes in masticatory performance that accompany orthognathic surgery. Materials and Methods: Masticatory performance was tested in 18 patients with various jaw deformities before application of orthodontic appliances and 2 to 3 years after surgical correction of their malocclusion. A control group was tested at three 6-month intervals. The subjects chewed carrots and masticatory performance was measured using a standard sieve technique. The Rosin-Rammler equation was used to calculate the median particle size and broadness index of each set of carrots. The number of chewing cycles required for each subject to swallow one piece of carrot was also recorded. Results: A statistically significant difference in median particle size between patients and controls was found both preoperatively and postoperatively (P < .05), but no difference in median particle size or broadness index was seen between trials for controls or patients (P > .05). Conclusion: It was concluded that before surgery patients have a lower level of performance than controls and surgical correction of the malocclusion does not significantly enhance performance.</div>
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<abstract>Abstract: Purpose: Individuals with developmental deformities of the jaws may be less efficient at chewing food. Previous studies have reported masticatory deficiency in patients with such deformities. This study was designed to detect any changes in masticatory performance that accompany orthognathic surgery. Materials and Methods: Masticatory performance was tested in 18 patients with various jaw deformities before application of orthodontic appliances and 2 to 3 years after surgical correction of their malocclusion. A control group was tested at three 6-month intervals. The subjects chewed carrots and masticatory performance was measured using a standard sieve technique. The Rosin-Rammler equation was used to calculate the median particle size and broadness index of each set of carrots. The number of chewing cycles required for each subject to swallow one piece of carrot was also recorded. Results: A statistically significant difference in median particle size between patients and controls was found both preoperatively and postoperatively (P > .05), but no difference in median particle size or broadness index was seen between trials for controls or patients (P > .05). Conclusion: It was concluded that before surgery patients have a lower level of performance than controls and surgical correction of the malocclusion does not significantly enhance performance.</abstract>
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<notesStmt><note>Received from the University of Texas Southwestern Medical Center, Dallas, TX.</note>
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<abstract xml:lang="en"><p>Purpose: Individuals with developmental deformities of the jaws may be less efficient at chewing food. Previous studies have reported masticatory deficiency in patients with such deformities. This study was designed to detect any changes in masticatory performance that accompany orthognathic surgery. Materials and Methods: Masticatory performance was tested in 18 patients with various jaw deformities before application of orthodontic appliances and 2 to 3 years after surgical correction of their malocclusion. A control group was tested at three 6-month intervals. The subjects chewed carrots and masticatory performance was measured using a standard sieve technique. The Rosin-Rammler equation was used to calculate the median particle size and broadness index of each set of carrots. The number of chewing cycles required for each subject to swallow one piece of carrot was also recorded. Results: A statistically significant difference in median particle size between patients and controls was found both preoperatively and postoperatively (P < .05), but no difference in median particle size or broadness index was seen between trials for controls or patients (P > .05). Conclusion: It was concluded that before surgery patients have a lower level of performance than controls and surgical correction of the malocclusion does not significantly enhance performance.</p>
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<head><ce:article-footnote><ce:label>☆</ce:label>
<ce:note-para>Received from the University of Texas Southwestern Medical Center, Dallas, TX.</ce:note-para>
</ce:article-footnote>
<ce:article-footnote><ce:label>☆☆</ce:label>
<ce:note-para>This research was supported by a grant from the American Association of Oral and Maxillofacial Surgeons.</ce:note-para>
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<ce:dochead><ce:textfn>Clinical article</ce:textfn>
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<ce:title>A longitudinal study of changes in masticatory performance of patients undergoing orthognathic surgery</ce:title>
<ce:author-group><ce:author><ce:given-name>Hooman M</ce:given-name>
<ce:surname>Zarrinkelk</ce:surname>
<ce:degrees>DDS</ce:degrees>
<ce:cross-ref refid="FN1"><ce:sup>∗</ce:sup>
</ce:cross-ref>
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<ce:author><ce:given-name>Gaylord S</ce:given-name>
<ce:surname>Throckmorton</ce:surname>
<ce:degrees>PhD</ce:degrees>
<ce:cross-ref refid="FN2"><ce:sup>†</ce:sup>
</ce:cross-ref>
</ce:author>
<ce:author><ce:given-name>Edward</ce:given-name>
<ce:surname>Ellis</ce:surname>
<ce:suffix>III</ce:suffix>
<ce:degrees>DDS, MS</ce:degrees>
<ce:cross-ref refid="COR1"><ce:sup>1</ce:sup>
</ce:cross-ref>
<ce:cross-ref refid="FN2"><ce:sup>‡</ce:sup>
</ce:cross-ref>
</ce:author>
<ce:author><ce:given-name>Douglas P</ce:given-name>
<ce:surname>Sinn</ce:surname>
<ce:degrees>DDS</ce:degrees>
<ce:cross-ref refid="FN4"><ce:sup>§</ce:sup>
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<ce:correspondence id="COR1"><ce:label>1</ce:label>
<ce:text>Address correspondence and reprint requests to Dr Ellis: Division of Oral and Maxillofacial Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas TX 75235-9109.</ce:text>
</ce:correspondence>
<ce:footnote id="FN1"><ce:label>∗</ce:label>
<ce:note-para>Research Fellow, Department of Oral and Maxillofacial Surgery.</ce:note-para>
</ce:footnote>
<ce:footnote id="FN2"><ce:label>†</ce:label>
<ce:note-para>Associate Professor, Department of Cell Biology and Neuroscience.</ce:note-para>
</ce:footnote>
<ce:footnote id="FN4"><ce:label>§</ce:label>
<ce:note-para>Professor and Chairman, Department of Oral and Maxillofacial Surgery.</ce:note-para>
</ce:footnote>
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<ce:abstract><ce:section-title>Abstract</ce:section-title>
<ce:abstract-sec><ce:simple-para><math altimg="si1.gif"><unl type="bar">Purpose:</unl>
</math>
Individuals with developmental deformities of the jaws may be less efficient at chewing food. Previous studies have reported masticatory deficiency in patients with such deformities. This study was designed to detect any changes in masticatory performance that accompany orthognathic surgery.</ce:simple-para>
<ce:simple-para><math altimg="si2.gif"><unl type="bar">Materials and Methods:</unl>
</math>
Masticatory performance was tested in 18 patients with various jaw deformities before application of orthodontic appliances and 2 to 3 years after surgical correction of their malocclusion. A control group was tested at three 6-month intervals. The subjects chewed carrots and masticatory performance was measured using a standard sieve technique. The Rosin-Rammler equation was used to calculate the median particle size and broadness index of each set of carrots. The number of chewing cycles required for each subject to swallow one piece of carrot was also recorded.</ce:simple-para>
<ce:simple-para><math altimg="si3.gif"><unl type="bar">Results:</unl>
</math>
A statistically significant difference in median particle size between patients and controls was found both preoperatively and postoperatively (<ce:italic>P</ce:italic>
< .05), but no difference in median particle size or broadness index was seen between trials for controls or patients (<ce:italic>P</ce:italic>
> .05).</ce:simple-para>
<ce:simple-para><math altimg="si4.gif"><unl type="bar">Conclusion:</unl>
</math>
It was concluded that before surgery patients have a lower level of performance than controls and surgical correction of the malocclusion does not significantly enhance performance.</ce:simple-para>
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<abstract lang="en">Abstract: Purpose: Individuals with developmental deformities of the jaws may be less efficient at chewing food. Previous studies have reported masticatory deficiency in patients with such deformities. This study was designed to detect any changes in masticatory performance that accompany orthognathic surgery. Materials and Methods: Masticatory performance was tested in 18 patients with various jaw deformities before application of orthodontic appliances and 2 to 3 years after surgical correction of their malocclusion. A control group was tested at three 6-month intervals. The subjects chewed carrots and masticatory performance was measured using a standard sieve technique. The Rosin-Rammler equation was used to calculate the median particle size and broadness index of each set of carrots. The number of chewing cycles required for each subject to swallow one piece of carrot was also recorded. Results: A statistically significant difference in median particle size between patients and controls was found both preoperatively and postoperatively (P < .05), but no difference in median particle size or broadness index was seen between trials for controls or patients (P > .05). Conclusion: It was concluded that before surgery patients have a lower level of performance than controls and surgical correction of the malocclusion does not significantly enhance performance.</abstract>
<note>Received from the University of Texas Southwestern Medical Center, Dallas, TX.</note>
<note>This research was supported by a grant from the American Association of Oral and Maxillofacial Surgeons.</note>
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