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Evaluation of basilar expansion and internal septa of human sphenoidal sinus using cone beam computed tomography
Buscatti, Marcio Yara; Santos, Karina Cecília Panelli; Arita, Emiko Saito; Asaumi, Junichi; Watanabe, Plauto Christopher Aranha; Oliveira, Jefferson Xavier.
  • Buscatti, Marcio Yara; University of São Paulo. School of Dentistry. Department of Stomatology. São Paulo. BR
  • Santos, Karina Cecília Panelli; University of São Paulo. School of Dentistry. Department of Stomatology. São Paulo. BR
  • Arita, Emiko Saito; University of São Paulo. School of Dentistry. Department of Stomatology. São Paulo. BR
  • Asaumi, Junichi; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences. Oral and Maxillofacial Radiology. Okayama. JP
  • Watanabe, Plauto Christopher Aranha; University of São Paulo. School of Dentistry. Department of Stomatology. São Paulo. BR
  • Oliveira, Jefferson Xavier; University of São Paulo. School of Dentistry. Department of Stomatology. São Paulo. BR
Clin. lab. res. dent ; 20(3): 166-173, jul.- set. 2014. ilus, tab
Article in English | LILACS | ID: lil-730183
RESUMO
O objetivo deste estudo foi avaliar os tipos e as frequências de expansão basilar do seio esfenoidal e septos internos utilizando tomografi a computadorizada de feixe cônico. Imagens arquivadas de 300 indivíduos adultos de ambos os gêneros foram recuperadas. Foi realizada uma análise descritiva relacionando idade e gênero à expansão basilar do seio esfenoidal e a tipos de septos internos e frequências. As associações entre expansão basilar do seio esfenoidal, septos internos e gênero para cada grupo de idade foram avaliadas por meio do teste do qui-quadrado ou teste exato de Fisher. Entre todas as imagens avaliadas, 69% apresentaram expansão basilar do seio esfenoidal, das quais 81% foram consideradas críticas. Septos internos foram observados em 60% das imagens. Não houve relação entre presença de expansão basilar do seio esfenoidal, gênero e idade. Septos internos apresentaram-se independentes do gênero; no entanto, dentre os indivíduos com mais de 40 anos de idade, 36% tinham apenas um septo principal, 6% tinham septos acessórios, e 18% tinham ambos os tipos de septos. A tomografia computadorizada é um método preciso que deve ser considerado para a avaliação desse segmento anatômico a fi m de evitar a exposição desnecessária à radiação.
ABSTRACT
The objective of this study was to assess the types and frequencies of basilar expansion of the sphenoidal sinus and internal septa by using cone beam computed tomography. Archived images from 300 adult subjects of both genders were retrieved. A descriptive analysis relating age and gender to basilar expansion of the sphenoidal sinus and internal septa types and frequencies was performed. The associations between basilar expansion of the sphenoidal sinus, internal septa and gender for each age group were assessed using the chi-square test or Fisher’s exact test. Among all the images evaluated, 69% showed basilar expansion of the sphenoidal sinus, of which 81% were considered critical. Internal septa were observed in 60% of the images. There was no relationship between the presence of basilar expansion of the sphenoidal sinus and gender and age. Internal septa were independent of gender; however, of the subjects older than age 40, 36% had only a main septum, 6% had accessory septa, and 18% had both types of septa. Cone beam computed tomography is an accurate method that should be considered for the evaluation of this anatomic segment in order to avoid unnecessary exposure to radiation.
Subject(s)
Full text: Available Index: LILACS (Americas) Main subject: Paranasal Sinuses / Sphenoid Sinus / Cone-Beam Computed Tomography / Anatomy Limits: Adult / Female / Humans / Male Language: English Journal: Clin. lab. res. dent Journal subject: Dentistry Year: 2014 Type: Article Affiliation country: Brazil / Japan Institution/Affiliation country: Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences/JP / University of São Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Paranasal Sinuses / Sphenoid Sinus / Cone-Beam Computed Tomography / Anatomy Limits: Adult / Female / Humans / Male Language: English Journal: Clin. lab. res. dent Journal subject: Dentistry Year: 2014 Type: Article Affiliation country: Brazil / Japan Institution/Affiliation country: Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences/JP / University of São Paulo/BR