A Zygomatic Bone Study Using Virtual Dental Implant Planning Software

This study evaluated the anatomical factors that influence the virtual planning of zygomatic implants by using cone-beam computerized tomography (CBCT) scans. CBCT scans of 268 edentulous patients were transferred to specialized implant planning software for the following measurements: maxillo-sinus...

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Bibliographic Details
Published inThe Journal of oral implantology Vol. 48; no. 3; pp. 171 - 176
Main Authors Moro, Sidnei Antonio, Thomé, Geninho, Padovan, Luis Eduardo Marques, da Silva, Ricarda Duarte, Tiossi, Rodrigo, Fontão, Flávia Noemy Gasparini Kiatake
Format Journal Article
LanguageEnglish
Published Abington Allen Press Inc 01.06.2022
Subjects
Bones
Computed tomography
Computer programs
Dental implants
Dental prosthetics
Digital archives
Edentulous
Maxillary sinus
Patients
Prostheses
Sinuses
Sinusitis
Software
Tomography
Variance analysis
Zygoma
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Summary:This study evaluated the anatomical factors that influence the virtual planning of zygomatic implants by using cone-beam computerized tomography (CBCT) scans. CBCT scans of 268 edentulous patients were transferred to specialized implant planning software for the following measurements: maxillo-sinus concavity size (small, medium, and large), zygoma width, implant insertion angle, implant length, and implant apical anchorage. Concavity sizes found were as follows: 34.95% small, 52.30% medium, and 7.35% large. The mean insertion angle was 43.2 degrees, and the average implant apical anchorage was 9.1 mm. The most frequent implant length was 40 mm. Significant differences were found when the different types of concavities in relation to the installation angle, the distance of the apical portion of the implant in contact with the zygomatic bone, and the lateral-lateral thickness of the zygomatic bone were compared (P < .001). Medium-sized maxillary sinus concavity presented greater apical anchorage of the implant (9.7 mm) and was the most frequent type (52.30%). The zygomatic bone is a viable site for zygomatic fixtures, and the use of specialized implant planning software is an important tool to achieve predictable outcomes for zygomatic implants and allows good visualization of the relation between implants and anatomical structures.
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ISSN:0160-6972
1548-1336
DOI:10.1563/aaid-joi-D-20-00149