上颌窦移植物与邻近原生骨像素值的锥形束ct比较。

3区医学 Q1 Dentistry

Implant Dentistry Pub Date : 2018-12-01 DOI:10.1097/ID.0000000000000823

Danielle Ayumi Nishimura, Eduardo Massaharu Aoki, Reinaldo Abdala Júnior, Emiko Saito Arita, Otavio Henrique Pinhata-Baptista, Ricardo Yudi Tateno, Luciana Correa, Arthur Rodriguez Gonzalez Cortes

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引用次数: 3

摘要

目的:锥形束计算机断层扫描(CBCT)的像素值与骨密度成正比。本研究旨在将愈合的上颌窦移植物和邻近的原生骨(NB)的像素值进行关联和比较。材料和方法:本研究对行双相磷酸钙上颌窦底增强术的CBCT扫描患者(n = 31)进行研究。测量接枝高度和宽度。此外，还计算了NB、靠近NB的鼻窦移植物(CNB)和远离NB的鼻窦移植物(FNB) 3个不同区域的平均像素值。并对代表性病例的骨标本进行显微ct和组织学分析。结果:CNB与接枝高度呈显著相关(r = 0.41;P < 0.021);FNB和接枝宽度(r = 0.519, P < 0.003)。此外，两个移植组(CNB和FNB)的像素值差异显著(P < 0.001)。最后，组织学切片显示FNB区有较小面积的新骨形成。结论:在本研究的局限性内，目前的研究结果表明，鼻窦移植区域的像素值与移植区域的延伸直接相关。

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Comparison of Pixel Values of Maxillary Sinus Grafts and Adjacent Native Bone With Cone-Beam Computed Tomography.

Purpose: Pixel values from cone-beam computed tomography (CBCT) are proportional to bone density. This study aimed to correlate and compare pixel values of healed maxillary sinus grafts and adjacent native bone (NB).

Material and methods: This study was conducted on CBCT scan patients referred for maxillary sinus floor augmentation with biphasic calcium phosphate (n = 31). Graft height and width measurements were performed. In addition, mean pixel values were calculated in 3 different regions: NB, sinus graft close to NB (CNB), and sinus graft far from NB (FNB). Micro-CT and histological analyses of bone specimens of a representative case were also performed.

Results: Significant correlations were found between CNB and graft height (r = 0.41; P < 0.021); and FNB and graft width (r = 0.519, P < 0.003). In addition, pixel values from both graft groups (CNB and FNB) differed significantly (P < 0.001). Finally, histological sections revealed smaller areas with newly formed bone in the FNB area.

Conclusions: Within the limitations of this study, the present findings suggest that pixel values of sinus grafted areas are directly correlated with the extension of the grafted area.

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来源期刊

Implant Dentistry 医学-牙科与口腔外科

CiteScore

4.00

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Cessation. Implant Dentistry, an interdisciplinary forum for general practitioners, specialists, educators, and researchers, publishes relevant clinical, educational, and research articles that document current concepts of oral implantology in sections on biomaterials, clinical reports, oral and maxillofacial surgery, oral pathology, periodontics, prosthodontics, and research. The journal includes guest editorials, letters to the editor, book reviews, abstracts of current literature, and news of sponsoring societies.