Maxillary sinus floor pneumatization and alveolar ridge resorption after tooth loss: a cross-sectional study
Braz. oral res. (Online)
;
32: e64, 2018. tab, graf
Artigo
em Inglês
| LILACS
| ID: biblio-952162
ABSTRACT
Abstract This is a cross-sectional study that aimed to estimate maxillary sinus floor (MSF) pneumatization in single missing tooth of posterior maxilla, by using cone-beam computed tomography (CBCT). CBCT images were analyzed bilaterally and divided into 2 groups: edentulous site (EdS) - edentulous single region of upper second premolar, first or second molars; Tooth site (TS) - contralateral region homologous to the EdS region, with tooth present. Variables evaluated were: sinus height (SH), estimated sinus pneumatization (eSP: ∆ EdS - TS), healed ridge height (HR) and presence of localized sinus pneumatization (LSP) in molars teeth at TS. HR were categorized according to therapeutic option for posterior maxilla. 183 CBCT scans were included and it was observed that EdS presented a higher SH than the TS (p < 0.001) showing an eSP of 0.9 ± 2.93 mm. First molars presented the highest SH for both sides, although significant differences were detected when compared to second molars. First molars were mostly affected by LSP at TS (36 out of 43). Individuals with LSP at TS presented lower HR than the ones without LSP (p < 0.05). 54% of the cases presenting LSP obtained HR < 5 mm, which indicates sinus lift surgery. The present study showed that tooth loss in posterior maxilla favors sinus pneumatization and the identification of LSP at molar roots seems to indicate a greater necessity for sinus lift surgeries.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Doenças Maxilares
/
Perda do Osso Alveolar
/
Perda de Dente
/
Seio Maxilar
Tipo de estudo:
Estudo de etiologia
/
Estudo observacional
/
Estudo de prevalência
/
Estudo prognóstico
/
Fatores de risco
Limite:
Adolescente
/
Adulto
/
Idoso
/
Aged80
/
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Braz. oral res. (Online)
Assunto da revista:
Odontologia
Ano de publicação:
2018
Tipo de documento:
Artigo
País de afiliação:
Brasil
/
Suíça
Instituição/País de afiliação:
Universidade de São Paulo/BR
/
University of Zurich/CH
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