Pub Date : 1990-12-01DOI: 10.1097/00006534-199012000-00054
W. C. Ardary, D. J. Tracy, Brownridge GW2nd, M. Urata
This study is a comparative evaluation of two commonly used screw configurations on the rigidity of the sagittal split osteotomy. A cadaver model was used to compare the immediate load strength of three screws placed horizontally above the neurovascular bundle (horizontal configuration) versus two screws placed horizontally above the bundle and one screw placed inferiorly below the bundle (triad configuration). The triad configuration was found to have a mean percentage increase in rigidity of 58% over the horizontal configuration. The paired t test was used to evaluate the data, disclosing a significant difference in load strength (p less than 0.01).
{"title":"Comparative evaluation of screw configuration on the stability of the sagittal split osteotomy.","authors":"W. C. Ardary, D. J. Tracy, Brownridge GW2nd, M. Urata","doi":"10.1097/00006534-199012000-00054","DOIUrl":"https://doi.org/10.1097/00006534-199012000-00054","url":null,"abstract":"This study is a comparative evaluation of two commonly used screw configurations on the rigidity of the sagittal split osteotomy. A cadaver model was used to compare the immediate load strength of three screws placed horizontally above the neurovascular bundle (horizontal configuration) versus two screws placed horizontally above the bundle and one screw placed inferiorly below the bundle (triad configuration). The triad configuration was found to have a mean percentage increase in rigidity of 58% over the horizontal configuration. The paired t test was used to evaluate the data, disclosing a significant difference in load strength (p less than 0.01).","PeriodicalId":19675,"journal":{"name":"Oral surgery, oral medicine, and oral pathology","volume":"46 1","pages":"125-9"},"PeriodicalIF":0.0,"publicationDate":"1990-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90042329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1990-12-01DOI: 10.1097/00006534-199012000-00058
E. L. Shufford, R. Kraut
To provide increased stability and to decrease intermaxillary fixation time after sagittal split osteotomy, we have used passive rigid fixation. Our method has not only achieved a diminution of intermaxillary fixation time, but it has also resulted in excellent stability and retention. A total of 72 sagittal split osteotomies were performed on 36 patients from July 1985 through December 1986. Rigid fixation was accomplished with two superior border 2.7 mm bicortical screws.
{"title":"Passive rigid fixation of sagittal split osteotomy.","authors":"E. L. Shufford, R. Kraut","doi":"10.1097/00006534-199012000-00058","DOIUrl":"https://doi.org/10.1097/00006534-199012000-00058","url":null,"abstract":"To provide increased stability and to decrease intermaxillary fixation time after sagittal split osteotomy, we have used passive rigid fixation. Our method has not only achieved a diminution of intermaxillary fixation time, but it has also resulted in excellent stability and retention. A total of 72 sagittal split osteotomies were performed on 36 patients from July 1985 through December 1986. Rigid fixation was accomplished with two superior border 2.7 mm bicortical screws.","PeriodicalId":19675,"journal":{"name":"Oral surgery, oral medicine, and oral pathology","volume":"19 1","pages":"150-3"},"PeriodicalIF":0.0,"publicationDate":"1990-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82076611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1990-07-01DOI: 10.1097/00006534-199109000-00057
I. T. Fisher, P. Cleaton-jones, J. Lownie
Many fractures of the angle of the mandible require direct intraosseous fixation in addition to intermaxillary fixation. In the past, various configurations of intraosseous wiring were used both at the lower and upper borders of the mandible. This study investigated which of four configurations offers the greatest mechanical resistance to a typical displacing force. Twelve baboon mandibles were cleared of all soft tissues and sectioned in the midline, and the most distal erupted molar tooth was extracted. Jigs were constructed to ensure that each mandible was sectioned in a standard fashion and that holes for wiring were drilled at a standard distance from the cut line. Mandibular halves, wired under standard conditions, were placed in an Instron tensile testing machine and subjected to a constant force that simulated the action of the major elevator muscles. Graphic recordings of force versus displacement were made. The results were subjected to an analysis of covariance, and to Scheffe's test for multiple comparisons. Results indicate that under experimental conditions, without jagged fracture surfaces, upper border mandibular wiring is less efficient than lower border wiring. At the lower border, a figure-of-eight wire is more effective than a combination figure-of-eight and straight wire, and at the upper border, the figure-of-eight wire is more effective than the straight wire.
{"title":"Relative efficiencies of various wiring configurations commonly used in open reductions of fractures of the angle of the mandible.","authors":"I. T. Fisher, P. Cleaton-jones, J. Lownie","doi":"10.1097/00006534-199109000-00057","DOIUrl":"https://doi.org/10.1097/00006534-199109000-00057","url":null,"abstract":"Many fractures of the angle of the mandible require direct intraosseous fixation in addition to intermaxillary fixation. In the past, various configurations of intraosseous wiring were used both at the lower and upper borders of the mandible. This study investigated which of four configurations offers the greatest mechanical resistance to a typical displacing force. Twelve baboon mandibles were cleared of all soft tissues and sectioned in the midline, and the most distal erupted molar tooth was extracted. Jigs were constructed to ensure that each mandible was sectioned in a standard fashion and that holes for wiring were drilled at a standard distance from the cut line. Mandibular halves, wired under standard conditions, were placed in an Instron tensile testing machine and subjected to a constant force that simulated the action of the major elevator muscles. Graphic recordings of force versus displacement were made. The results were subjected to an analysis of covariance, and to Scheffe's test for multiple comparisons. Results indicate that under experimental conditions, without jagged fracture surfaces, upper border mandibular wiring is less efficient than lower border wiring. At the lower border, a figure-of-eight wire is more effective than a combination figure-of-eight and straight wire, and at the upper border, the figure-of-eight wire is more effective than the straight wire.","PeriodicalId":19675,"journal":{"name":"Oral surgery, oral medicine, and oral pathology","volume":"84 1","pages":"10-7"},"PeriodicalIF":0.0,"publicationDate":"1990-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83330629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1990-01-01DOI: 10.1007/978-3-030-58292-0_130334
J. S. Hubar, J. Guggenheimer, M. Evan
{"title":"\"Megalith\".","authors":"J. S. Hubar, J. Guggenheimer, M. Evan","doi":"10.1007/978-3-030-58292-0_130334","DOIUrl":"https://doi.org/10.1007/978-3-030-58292-0_130334","url":null,"abstract":"","PeriodicalId":19675,"journal":{"name":"Oral surgery, oral medicine, and oral pathology","volume":"7 1","pages":"245"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87891625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"New directions in oral reconstruction. Proceedings of a symposium. Chicago, Illinois, April 13, 1989.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":19675,"journal":{"name":"Oral surgery, oral medicine, and oral pathology","volume":"68 4 Pt 2","pages":"495-534"},"PeriodicalIF":0.0,"publicationDate":"1989-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13757762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1989-05-01DOI: 10.1097/00006534-199009000-00078
H. S. Park, E. Ellis, R. Fonseca, S. Reynolds, K. Mayo
This study examined the immediate and postsurgical changes in the hard and soft tissues of the chin after advancement genioplasty by means of oblique osteotomy of the mandibular symphysis. Twenty-three patients who had undergone this procedure were evaluated cephalometrically for up to 6 months after surgery. The results indicated that the position of the genial segment is stable after advancement. There was a good correlation between the amount of hard versus soft tissue change with surgery in the horizontal direction but a poor correlation in the vertical plane. There was, however, a great amount of variability from one patient to the next in most of the variables examined. Follow-up results were generally very stable.
{"title":"A retrospective study of advancement genioplasty.","authors":"H. S. Park, E. Ellis, R. Fonseca, S. Reynolds, K. Mayo","doi":"10.1097/00006534-199009000-00078","DOIUrl":"https://doi.org/10.1097/00006534-199009000-00078","url":null,"abstract":"This study examined the immediate and postsurgical changes in the hard and soft tissues of the chin after advancement genioplasty by means of oblique osteotomy of the mandibular symphysis. Twenty-three patients who had undergone this procedure were evaluated cephalometrically for up to 6 months after surgery. The results indicated that the position of the genial segment is stable after advancement. There was a good correlation between the amount of hard versus soft tissue change with surgery in the horizontal direction but a poor correlation in the vertical plane. There was, however, a great amount of variability from one patient to the next in most of the variables examined. Follow-up results were generally very stable.","PeriodicalId":19675,"journal":{"name":"Oral surgery, oral medicine, and oral pathology","volume":"41 1","pages":"481-9"},"PeriodicalIF":0.0,"publicationDate":"1989-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88978194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1989-04-01DOI: 10.1097/00006534-198904000-00055
C. Roberts, R. Tallents, R. Katzberg, R. Sanchez-Woodworth, M. Espeland, S. Handelman
Two hundred five patients were examined for temporomandibular joint pain and dysfunction and specifically for tenderness to muscle palpation. Arthrograms were performed on 222 joints (188 unilateral and 17 bilateral). Significant findings were ascertained for the middle portion of the temporal muscle in "normal" patients versus "with and without meniscus reduction" patients. The superficial masseter muscle was more tender in "normal" patients and in "reducing meniscus" patients than in "without meniscus reduction" patients. The medial pterygoid muscle was more tender in "normal" patients and in "without meniscus reduction" patients than in "reducing meniscus" patients. Though there are some significant findings with respect to muscle palpation, by itself muscle palpation is not a specific indicator of temporomandibular joint internal derangement.
{"title":"Comparison of arthrographic findings of the temporomandibular joint with palpation of the muscles of mastication.","authors":"C. Roberts, R. Tallents, R. Katzberg, R. Sanchez-Woodworth, M. Espeland, S. Handelman","doi":"10.1097/00006534-198904000-00055","DOIUrl":"https://doi.org/10.1097/00006534-198904000-00055","url":null,"abstract":"Two hundred five patients were examined for temporomandibular joint pain and dysfunction and specifically for tenderness to muscle palpation. Arthrograms were performed on 222 joints (188 unilateral and 17 bilateral). Significant findings were ascertained for the middle portion of the temporal muscle in \"normal\" patients versus \"with and without meniscus reduction\" patients. The superficial masseter muscle was more tender in \"normal\" patients and in \"reducing meniscus\" patients than in \"without meniscus reduction\" patients. The medial pterygoid muscle was more tender in \"normal\" patients and in \"without meniscus reduction\" patients than in \"reducing meniscus\" patients. Though there are some significant findings with respect to muscle palpation, by itself muscle palpation is not a specific indicator of temporomandibular joint internal derangement.","PeriodicalId":19675,"journal":{"name":"Oral surgery, oral medicine, and oral pathology","volume":"42 1","pages":"275-7"},"PeriodicalIF":0.0,"publicationDate":"1989-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81324265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1989-04-01DOI: 10.1097/00006534-198904000-00054
D. Precious, J. Delaire
Balanced facial growth is a complex process that involves maxillary, mandibular, dental, and cranial growth. Growth of the maxilla is due to special movements of translation, rotation, and elongation as well as to growth of its skeletal units and skeletal structures. Growth of the mandible is the sum of growth of all of its skeletal units. Cranial growth influences both maxillary and mandibular positions, which themselves can vary interdependently, in part because of the mutual influences of the maxillary and mandibular dentitions.
{"title":"Balanced facial growth: a schematic interpretation.","authors":"D. Precious, J. Delaire","doi":"10.1097/00006534-198904000-00054","DOIUrl":"https://doi.org/10.1097/00006534-198904000-00054","url":null,"abstract":"Balanced facial growth is a complex process that involves maxillary, mandibular, dental, and cranial growth. Growth of the maxilla is due to special movements of translation, rotation, and elongation as well as to growth of its skeletal units and skeletal structures. Growth of the mandible is the sum of growth of all of its skeletal units. Cranial growth influences both maxillary and mandibular positions, which themselves can vary interdependently, in part because of the mutual influences of the maxillary and mandibular dentitions.","PeriodicalId":19675,"journal":{"name":"Oral surgery, oral medicine, and oral pathology","volume":"33 1","pages":"637-44"},"PeriodicalIF":0.0,"publicationDate":"1989-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77970464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1988-11-01DOI: 10.1097/00006534-198811000-00087
Robert E. Marx, Robert P. Johnson, C. Manstein
The radiobiology of osteoradionecrosis is a complex of cellular death and cellular functional impairments from radiation energy transfers. Four studies of irradiated patients and a data base from 536 patients with osteoradionecrosis revealed separate pathophysiologic conditions for osteoradionecrosis induced by early trauma, osteoradionecrosis induced by late trauma, and spontaneous osteoradionecrosis. A large body of data suggested useful clinical guidelines for the management of irradiated patients. The guidelines, in part, include a recommendation for deferring radiation treatment for 21 days after tissue wounding, if possible; a relative contraindication to wounding tissue during a radiation course; a recommendation for the use of hyperbaric oxygen before wounding; and a strong recommendation to provide comprehensive dental care to the irradiated patient.
{"title":"Studies in the radiobiology of osteoradionecrosis and their clinical significance.","authors":"Robert E. Marx, Robert P. Johnson, C. Manstein","doi":"10.1097/00006534-198811000-00087","DOIUrl":"https://doi.org/10.1097/00006534-198811000-00087","url":null,"abstract":"The radiobiology of osteoradionecrosis is a complex of cellular death and cellular functional impairments from radiation energy transfers. Four studies of irradiated patients and a data base from 536 patients with osteoradionecrosis revealed separate pathophysiologic conditions for osteoradionecrosis induced by early trauma, osteoradionecrosis induced by late trauma, and spontaneous osteoradionecrosis. A large body of data suggested useful clinical guidelines for the management of irradiated patients. The guidelines, in part, include a recommendation for deferring radiation treatment for 21 days after tissue wounding, if possible; a relative contraindication to wounding tissue during a radiation course; a recommendation for the use of hyperbaric oxygen before wounding; and a strong recommendation to provide comprehensive dental care to the irradiated patient.","PeriodicalId":19675,"journal":{"name":"Oral surgery, oral medicine, and oral pathology","volume":"65 1","pages":"379-90"},"PeriodicalIF":0.0,"publicationDate":"1988-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72839113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1988-11-01DOI: 10.1097/00006534-198811000-00069
P. Westesson, J. Liedberg
The angle between the horizontal condylar long axis and the frontal plane was measured and correlated with arthrographic diagnosis in 364 consecutive temporomandibular joint patients. There were no statistically significant associations between the horizontal condylar angle and the arthrographic diagnosis. The condylar angle of the contralateral joint however, was, found to be larger in patients with unilateral anterior disk displacement than in patients with normal temporomandibular joints. There is no immediate explanation of this finding, but it supports previous observations and may contribute to the understanding of the etiology and the pathogenesis of internal derangement of the temporomandibular joint.
{"title":"Horizontal condylar angle in relation to internal derangement of the temporomandibular joint.","authors":"P. Westesson, J. Liedberg","doi":"10.1097/00006534-198811000-00069","DOIUrl":"https://doi.org/10.1097/00006534-198811000-00069","url":null,"abstract":"The angle between the horizontal condylar long axis and the frontal plane was measured and correlated with arthrographic diagnosis in 364 consecutive temporomandibular joint patients. There were no statistically significant associations between the horizontal condylar angle and the arthrographic diagnosis. The condylar angle of the contralateral joint however, was, found to be larger in patients with unilateral anterior disk displacement than in patients with normal temporomandibular joints. There is no immediate explanation of this finding, but it supports previous observations and may contribute to the understanding of the etiology and the pathogenesis of internal derangement of the temporomandibular joint.","PeriodicalId":19675,"journal":{"name":"Oral surgery, oral medicine, and oral pathology","volume":"12 1","pages":"391-4"},"PeriodicalIF":0.0,"publicationDate":"1988-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78044407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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