cad a22 4500 551468440 20200417040220.0 cr unu---uuuuu 181215e20180806xx s 000 0 eng 10.5167/uzh-159469 doi 10.1590/1807-3107BOR-2018.vol32.0064 doi (ZORA)oai:www.zora.uzh.ch:159469 610 ddc 30088551 pmid Maxillary sinus floor pneumatization and alveolar ridge resorption after tooth loss: a cross-sectional study [Elektronische Daten] [Marília Cabral Cavalcanti, Thais Eiler Guirado, Vitor Marques Sapata, Claudio Costa, Cláudio Mendes Pannuti, Ronald Ernst Jung, João Batista César Neto] openAccess eu-repo 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. Clinic of Reconstructive Dentistry zora Cavalcanti Marília Cabral joint author Guirado Thais Eiler joint author Sapata Vitor Marques joint author Costa Claudio joint author Pannuti Cláudio Mendes joint author Jung Ronald Ernst joint author César Neto João Batista joint author Brazilian Oral Research 32:e64 https://www.zora.uzh.ch/id/eprint/159469/1/1807-3107-bor-32-e064.pdf text/html WWW-Backlink auf das Repository 1 Journal Article PeerReviewed zora ZORA 856 40 https://www.zora.uzh.ch/id/eprint/159469/1/1807-3107-bor-32-e064.pdf text/html WWW-Backlink auf das Repository ZORA 700 1- Cavalcanti Marília Cabral joint author ZORA 700 1- Guirado Thais Eiler joint author ZORA 700 1- Sapata Vitor Marques joint author ZORA 700 1- Costa Claudio joint author ZORA 700 1- Pannuti Cláudio Mendes joint author ZORA 700 1- Jung Ronald Ernst joint author ZORA 700 1- César Neto João Batista joint author ZORA 773 0- Brazilian Oral Research 32:e64 BK010053 XK010053 XK010000 ZORA ZORA ZORA Journal Article openAccess