Complete obturation of the nasopharynx can cause functional problems with breathing and swallowing due to obstruction of the nasal airway. A technique is described whereby a one way valve was incorporated in an obturator to allow normal nasal inspiration whilst maintaining an oropharyngeal seal during swallowing and speech.
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http://dx.doi.org/10.1016/s0266-4356(97)90413-7 | DOI Listing |
J Indian Prosthodont Soc
December 2022
Department of Prosthodontics and Crown and Bridge, Tamil Nadu Government Dental College and Hospital, Chennai, Tamil Nadu, India.
The dynamic of velopharyngeal sphincter mechanism is a complex motor skill involving coordination of soft palate and posterior and lateral pharyngeal walls. At rest, the soft palate drapes downward so that the oropharynx and the nasopharynx open allowing for normal breathing. However, during deglutition and certain speech, sounds such as plosives require complete or nearly complete velopharyngeal closure, whereas during utterance of vowels, the port needs to be open at varying degrees.
View Article and Find Full Text PDFBackground: Biphenotypic sinonasal sarcoma (BFSS) is a topographically specific low-grade sarcoma that was first described only 10 years ago. The term biphenotypic comes from the co-expression of markers of muscle differentiation and neural crest that is characteristic for this tumor.
Case: A 78-year-old woman manifested with prolonged breathing difficulties through the left nasal passage.
Cureus
May 2021
Pediatric Dentistry, October University for Modern Sciences and Arts (MSA), Cairo, EGY.
Encountering a nasopharyngeal polyp in a patient with submucous cleft palate (SMCP) is a difficult problem, as the lesion could support the weak palate. Removal of this lesion may unmask the SMCP with consequent worsening of speech nasality. Nasal septal polyp protruding to the nasopharynx in a patient with SMCP has not been reported before in the literature.
View Article and Find Full Text PDFJ Oral Biol Craniofac Res
November 2020
Department of Prosthodontics, Maulana Azad Institute of Dental Sciences, New Delhi, 110002, India.
Total maxillectomy is referred to as bilateral resection of maxillae in patients suffering from a benign, malignant neoplasm or chronic infections like osteomyelitis, etc. It causes communication between the oral and antral cavity extending to the nasopharynx. A complete bilateral maxillectomy defect presents a considerably reconstructive challenge for the prosthodontist because of the absence of normal hard and soft tissues for the support of prosthesis.
View Article and Find Full Text PDFJ Clin Anesth
August 2016
Department of Anesthesiology and Pain Medicine, College of Medicine, Dankook University, Cheonan, Korea. Electronic address:
Background: Various complications may occur during nasotracheal intubation. This may include epistaxis and damage to the nasopharyngeal airway. We tested the hypothesis that the use of fiberoptic bronchoscopy (FOB)-guided intubation is superior to endotracheal tube (ETT) obturated with an inflated esophageal stethoscope.
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