Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method

Wang, Xuan; Zhang, Tianqi; Yang, Enli; Gong, Zhiyuan; Shen, Huanfeng; Wu, Haiwei; Zhang, Dongsheng

doi:10.1155/2020/8419319

Cited by 4 publications

(4 citation statements)

References 34 publications

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“…Three-dimensional measurement technology includes laser scanning technology, structured light scanning technology, X-ray technology, and spiral CT scanning technology, which is widely used in clinical and scientific researches [ 9 , 13 – 16 ]. The early study of the mandible was mainly based on lateral cephalogram.…”

Section: Discussionmentioning

confidence: 99%

“…Two-dimensional images cannot fully and accurately reflect the actual situation of three-dimensional structures. Thus, in clinical orthodontics, three-dimensional reconstruction and measurement analysis of the mandible is of great significance [ 9 ]. Despite some achievements in the three-dimensional morphology of the mandible, the data are still relatively scarce.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Three-Dimensional Morphological Differences in the Mandible between Skeletal Class I and Class II with CBCT Fixed-Point Measurement Method

Dong

Shi²,

Jia³

et al. 2021

Scanning

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This study was aimed at determining the three-dimensional differences in the mandible morphology between skeletal class I and II patients, at exploring the pathogenic mechanisms and morphological characteristics of skeletal class II, and at providing clinical references. The subjects were assigned to two groups according to the size of ANB angle: skeletal class I ( 2 ° < ANB angle < 5 ° ) and skeletal class II ( 5 ° < ANB angle < 8 ° ). After cone-beam computed tomography (CBCT) scanning, 31 landmarks and 25 measurement items were determined by In Vivo Dental 5.1 software (Anatomage, CA) for statistical analysis. The results were as follows: Co-Go, Go-Me, and CdM-CdD in skeletal class II cases were smaller than those in skeletal class I, and GoR-Me-GoL, GoR-Me-CoL, and, Ig-Men were larger than those in skeletal class I cases. In conclusion, there were significant differences in the three-dimensional morphology of the mandible between skeletal class I and class II patients. The vertical growth of the ramus, the horizontal growth of the mandibular body, and the condyle in skeletal class II patients were smaller than those in skeletal class I cases. In skeletal class II, the growth of the anterior part of the mandible in the vertical direction was larger than that in skeletal class I, and the shape of the mandible was more extended.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of Three-Dimensional Morphological Differences in the Mandible between Skeletal Class I and Class II with CBCT Fixed-Point Measurement Method

Dong

Shi²,

Jia³

et al. 2021

Scanning

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“…Excessive distribution of stress concentration is one of the important factors involved in time-dependent marginal bone loss, with inevitable progression compromising post-implantation stability. Marginal bone resorption usually begins in the cortical bone and progresses toward the apex ( Wang et al, 2020 ). In addition, progressive bone loss is regarded as the first step of peri-implantitis ( Galindo-Moreno et al, 2015 ).…”

Section: Discussionmentioning

confidence: 99%

Biomechanical evaluation of custom-made short implants with wing retention applied in severe atrophic maxillary posterior region restoration: A three-dimensional finite element analysis

Yang

Zhang²,

Xu³

et al. 2023

Front. Bioeng. Biotechnol.

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Severe bone atrophy in the maxillary posterior region poses a big challenge to implant restoration. Digitally designed and customized short implants with wing retention provide a safer and minimally invasive implant restoration scheme in such circumstances. Small titanium wings are integrated with the short implant supporting the prosthesis. Using digital designing and processing technology, the wings fixed by titanium screws can be flexibly designed, providing the main fixation. The design of the wings will influence the stress distribution and implant stability. This study analyzes the position, structure, and spread area of the wings fixture scientifically by means of three-dimensional finite element analysis. The design of the wings is set to linear, triangular, and planar styles. Under the simulated vertical and oblique occlusal forces, the implant displacement and stress between the implant and the bone surface are analyzed at different bone heights of 1 mm, 2 mm, and 3 mm. The finite element results show that the planar form can better disperse the stress. By adjusting the cusp slope to reduce the influence of lateral force, short implants with planar wing fixtures can be used safely even if the residual bone height is only 1 mm. The results of the study provide a scientific basis for the clinical application of this new customized implant.

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“…This acceptance is often unpredictable. Due to these assessments, bone graft is normally followed by 4-6 months of wait before loading [1], [2].…”

Section: Introductionmentioning

confidence: 99%

Bicortical Screw and Needle Welded Together as Effective Implant Technique for Immediate Load of SINGLE Tooth in Aesthetic Zone Characterized by Severe Bony Reabsorption: Cases Report

Carlo¹,

Pasqualini²,

Rossi³

2021

EJMED

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After a long period of time in which submerged implants were used just with delayed load, scientific evidence has led to immediate loading, finally re-evaluating the long lasting experience gotten with one-piece implants. In aesthetic area, if bone is deep and wide, immediate load can be performed with any type of implants, with scarce risk of failure. Situations in which bone is scarce are frequent and impose to choose between performing a suitable technique compatible with immediate loading or renouncing to immediate loading. In our experience, implant technique based on the welding-in-mouth of a titanium needle to main implant is regularly destined to success, because the needle implant, deeply anchored to bone, compensates the lateral forces that normally push the tooth forward. The long lasting experience accrued since over 30 years in our professional offices leads us to suggest this technique as a standard solution while dealing with bone reabsorption in the aesthetic area. We are certain that further studies will confirm our conclusions.

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Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method

Cited by 4 publications

References 34 publications

Analysis of Three-Dimensional Morphological Differences in the Mandible between Skeletal Class I and Class II with CBCT Fixed-Point Measurement Method

Analysis of Three-Dimensional Morphological Differences in the Mandible between Skeletal Class I and Class II with CBCT Fixed-Point Measurement Method

Biomechanical evaluation of custom-made short implants with wing retention applied in severe atrophic maxillary posterior region restoration: A three-dimensional finite element analysis

Bicortical Screw and Needle Welded Together as Effective Implant Technique for Immediate Load of SINGLE Tooth in Aesthetic Zone Characterized by Severe Bony Reabsorption: Cases Report

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