Abstract：
:The use of ultrasound to cut bone in oral and craniofacial surgery has increased. There is concern that the application of ultrasound to the craniofacial skeleton might represent a potential hazard to the inner ear because of sound transmission by bone conduction resulting in hearing trauma. Conventional and ultrasound osteotomies were performed on human specimens of temporal bone containing an intact middle and inner ear. The equivalent sound pressure was measured with a microphone at the round window, which had been calibrated with a bone conduction audiometer. Conventional osteotomy with a rose burr resulted in maximum sound pressures of 125dB(A) consisting of major frequency components at 2100, 7600, and 9300Hz. Ultrasound osteotomy resulted in maximum sound pressures of 122dB(A) and exhibited major frequency components at around 10kHz, 20kHz, and 26.5kHz. Ultrasound osteotomies have no acoustic advantage over conventional osteotomies. Both osteotomy techniques can produce noise-induced hearing trauma, especially when applied over longer durations of time. This appears to be more relevant for ultrasound osteotomies, because the bone cutting efficiency is usually poorer than in conventional osteotomies. Surgeons should consider the risk of noise-induced potential damage to the inner ear when selecting the method of osteotomy.
journal_name
Int J Oral Maxillofac Surgjournal_title
International journal of oral and maxillofacial surgeryauthors
Kramer FJ,Bornitz M,Zahnert T,Schliephake Hdoi
10.1016/j.ijom.2015.03.004subject
Has Abstractpub_date
2015-11-01 00:00:00pages
1355-61issue
11eissn
0901-5027issn
1399-0020pii
S0901-5027(15)00098-3journal_volume
44pub_type
杂志文章abstract：:The aim of the present study was to compare the biomechanical stability of 10 different fixation methods used in sagittal split osteotomy. Twenty-five fresh sheep mandibles were stripped of all soft tissues and sectioned at the midline. A sagittal split osteotomy with 5mm advancement was performed on each hemimandible...
journal_title：International journal of oral and maxillofacial surgery
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abstract：:RT-PCR was used to analyze the expression of a series of mRNAs coding for proteoglycans aggrecan, versican, biglycan, decorin, fibromodulin and also hyaluronan synthase 1 in specimens obtained during discectomy of the temporomandibular joint in patients with unilateral signs and symptoms of chronic closed lock (eight ...
journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
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abstract：:The aim of this systematic review was to investigate the influence of the presence and position of mandibular third molars in mandibular condyle fractures. An electronic search was conducted in PubMed, Scopus, Web of Science, Cochrane Library, and VHL, through January 2016. The eligibility criteria included observatio...
journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
pub_type： 杂志文章,评审
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journal_title：International journal of oral and maxillofacial surgery
pub_type： 杂志文章
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journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
pub_type： 杂志文章
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更新日期：2008-05-01 00:00:00
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journal_title：International journal of oral and maxillofacial surgery
pub_type： 杂志文章
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journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
pub_type： 杂志文章
doi：10.1016/j.ijom.2005.10.009
更新日期：2006-05-01 00:00:00
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journal_title：International journal of oral and maxillofacial surgery
pub_type： 杂志文章
doi：
更新日期：1999-06-01 00:00:00
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journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
pub_type： 杂志文章
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journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
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journal_title：International journal of oral and maxillofacial surgery
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abstract：:Hypoplastic-hypocalcified enamel of all permanent teeth and dysplasia of finger- and toe-nails were found in a 17-year-old Japanese male. Physical examination revealed no remarkable changes in skin, hair, sweat glands, bones, etc. Family history revealed the same abnormalities of teeth and nails in his mother's brothe...
journal_title：International journal of oral and maxillofacial surgery
pub_type： 杂志文章
doi：10.1016/s0901-5027(89)80132-8
更新日期：1989-04-01 00:00:00
