Internal Structure of Zygomatic Bone Related to Zygomatic Fixture

Kato, Yorihisa; Kizu, Yasuhiro; Tonogi, Morio; Ide, Yoshinobu; Yamane, Gen-yuki

doi:10.1016/j.joms.2005.05.313

Cited by 41 publications

(36 citation statements)

References 13 publications

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“…Possible differences due to ethnicity (Nkenke et al, 2003;Liu et al, 2011;Kim et al, 2013b;Putman et al, 2013) and/or body height (Uchida et al, 2001) suggested the present microCT-based analysis in a Caucasian population. Compared with previous studies on edentulous specimens (micro-CT (Kato et al, 2005) and histomorphometric (Nkenke et al, 2003) analyses), a slightly higher bone volume fraction associated with a higher trabecular thickness was detected for the zygomatic bone. Nkenke et al (2003) evaluated the trabecular bone quality of the zygomatic bone as poor when compared with the maxilla (Ulm et al, 1999) due to reduced trabecular connectivity.…”

Section: Discussioncontrasting

confidence: 89%

“…Hence, the trabecular structure of the zygomatic bone appears to be significantly influenced by occlusal stress and biting forces. In a subsequent study, Kato et al (2005) confirmed, for edentulous specimens, a higher trabecular bone quality (higher bone volume fraction with thicker and more plate-like structured trabeculae) in the Jugale region, which also represents the apical anchorage site of zygomatic implants. Possible differences due to ethnicity (Nkenke et al, 2003;Liu et al, 2011;Kim et al, 2013b;Putman et al, 2013) and/or body height (Uchida et al, 2001) suggested the present microCT-based analysis in a Caucasian population.…”

Section: Discussionmentioning

confidence: 56%

“…Except for one histological analysis (Nkenke et al, 2003), the zygomatic bone quality was assessed, thus far, by three microCT-based trials assessing Japanese specimens (Kato et al, 2004(Kato et al, , 2005Yoshino et al, 2007). A tooth-loss-dependent change in the trabecular structure of the zygomatic bone was described; dentate specimens presented a higher trabecular bone density, thicker trabeculae, and a more plate-like and constantly oriented trabecular structure (Kato et al, 2004;Yoshino et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…For zygomatic bone, studies on its quantity are available (Uchida et al, 2001;Nkenke et al, 2003;Van Steenberghe et al, 2003;Corvello et al, 2011;Balshi et al, 2012), but data on its quality are still scarce and, except for one histological study by Nkenke et al (2003), are restricted to Japanese populations (Kato et al, 2004(Kato et al, , 2005Yoshino et al, 2007). Possible differences due to ethnicity (Uchida et al, 2001;Nkenke et al, 2003;Liu et al, 2011;Kim et al, 2013b;Putman et al, 2013) and the technique applied for bone analysis (histomorphometry vs. micro-computed tomography (microCT)) (Chappard et al, 2005;Bonnet et al, 2009), and the lack of an intraindividual comparison with the maxilla, triggered the present microCT-based study to assess the trabecular bone quality of the zygomatic bone and compare it with the anterior and posterior maxilla.…”

Section: Introductionmentioning

confidence: 99%

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MicroCT-based evaluation of the trabecular bone quality of different implant anchorage sites for masticatory rehabilitation of the maxilla

Bertl

Heimel

Rökl-Riegler

et al. 2015

Journal of Cranio-Maxillofacial Surgery

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a b s t r a c tIn the severely atrophied maxilla, implant anchorage in the zygomatic bone is considered a viable alternative to conventional dental implants with preceding bone augmentation procedures. The present microCT-based study compared the trabecular bone quality of the maxilla and zygomatic bone. MicroCT scanning was conducted in 12 halves of cadaver heads (5 male, 7 female) with edentulous, atrophied maxillae. Relevant trabecular bone quality parameters were determined in the anterior and posterior maxilla and in the zygomatic bone and compared by region and sex. Any difference in mean values between the anterior maxilla and the zygomatic bone was insignificant. Comparison of both with the posterior maxilla presented significantly higher values for bone volume fraction, surface density, and trabecular thickness and number, and significantly lower values for specific bone surface, structure model index, and trabecular separation. A significant sex-specific difference was not detected. The present microCT-based analysis is, to the best of our knowledge, the first intra-individual comparison of different implant anchorage sites for masticatory rehabilitation of the maxilla. The trabecular compartment of the zygomatic bone offered bone quality and, thus, an implant bed comparable with those of the anterior maxilla, and both were superior to the posterior maxilla.

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Section: Discussioncontrasting

confidence: 89%

Section: Discussionmentioning

confidence: 56%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

MicroCT-based evaluation of the trabecular bone quality of different implant anchorage sites for masticatory rehabilitation of the maxilla

Bertl

Heimel

Rökl-Riegler

et al. 2015

Journal of Cranio-Maxillofacial Surgery

View full text Add to dashboard Cite

show abstract

“…Zygomatic implants have been indicated for severely atrophic maxilla and have shown promising outcomes [1] [3] [4] [5] allowing anchorage and stability in the zygomatic bone, that is characterized by a cortical bone with a dense trabecular structure [6]. Zygomatic implant placement is a less invasive technique when compared to bone grafting.…”

Section: Introductionmentioning

confidence: 99%

Zygomatic Implant-Supported Prosthesis: When the Prosthetic Rehabilitation Affects the Function: A Case Report

Matsumoto¹,

Antunes²,

Trivellato³

et al. 2017

OJST

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The oral rehabilitation of edentulous patients can be done in different ways depending on the alveolar ridge morphology and patient expectations. The objective of this clinical case was to report prosthetic and functional adaptation difficulties when conventional complete denture was changed to a zygomatic implant-supported prosthesis. We report a 52-year-old male singer with an atrophic maxilla who was rehabilitated with zygomatic implant-supported prosthesis using 4 implants. However, the thickness of the prosthesis in the palatal region and the space between the prosthesis and soft tissue caused difficulty in speaking and singing. The palatal region of the prosthesis was trimmed and the anterior region of the prosthesis was relined. These procedures were performed to make room for the tongue and minimize the passage of air during speech. Adaptations in the shape of the prosthesis must be made to enable its use, without compromising its strength.

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Zygomatic and Pterygoid Implants as an Alternative to Bone Augmentation in Implant Dentistry

2022

Essential Techniques of Alveolar Bone Augmentation in Implant Dentistry

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Internal Structure of Zygomatic Bone Related to Zygomatic Fixture

Cited by 41 publications

References 13 publications

MicroCT-based evaluation of the trabecular bone quality of different implant anchorage sites for masticatory rehabilitation of the maxilla

MicroCT-based evaluation of the trabecular bone quality of different implant anchorage sites for masticatory rehabilitation of the maxilla

Zygomatic Implant-Supported Prosthesis: When the Prosthetic Rehabilitation Affects the Function: A Case Report

Zygomatic and Pterygoid Implants as an Alternative to Bone Augmentation in Implant Dentistry

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