Automatic three‐dimensional analysis of bone volume and quality change after maxillary sinus augmentation

2019 ◽  
Vol 21 (6) ◽  
pp. 1148-1155
Author(s):  
Jin‐Ju Kwon ◽  
JaeJoon Hwang ◽  
Yong‐Deok Kim ◽  
Sang‐Hun Shin ◽  
Bong‐Hae Cho ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Dimensional Analysis ◽  
Three Dimensional ◽  
Bone Volume ◽  
Quality Change ◽  
Sinus Augmentation ◽  
Maxillary Sinus Augmentation

scholarly journals Biphasic Calcium Phosphate Biomaterials: Stem Cell-Derived Osteoinduction or In Vivo Osteoconduction? Novel Insights in Maxillary Sinus Augmentation by Advanced Imaging

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2159
Author(s):  
Giovanna Iezzi ◽  
Antonio Scarano ◽  
Luca Valbonetti ◽  
Serena Mazzoni ◽  
Michele Furlani ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Maxillary Sinus ◽  
Biphasic Calcium Phosphate ◽  
Calcium Phosphates ◽  
Three Dimensional ◽  
Sinus Augmentation ◽  
Native Bone ◽  
Maxillary Sinus Augmentation ◽  
Posterior Maxilla

Maxillary sinus augmentation is often necessary prior to implantology procedure, in particular in cases of atrophic posterior maxilla. In this context, bone substitute biomaterials made of biphasic calcium phosphates, produced by three-dimensional additive manufacturing were shown to be highly biocompatible with an efficient osteoconductivity, especially when combined with cell-based tissue engineering. Thus, in the present research, osteoinduction and osteoconduction properties of biphasic calcium-phosphate constructs made by direct rapid prototyping and engineered with ovine-derived amniotic epithelial cells or amniotic fluid cells were evaluated. More in details, this preclinical study was performed using adult sheep targeted to receive scaffold alone (CTR), oAFSMC, or oAEC engineered constructs. The grafted sinuses were explanted at 90 days and a cross-linked experimental approach based on Synchrotron Radiation microCT and histology analysis was performed on the complete set of samples. The study, performed taking into account the distance from native surrounding bone, demonstrated that no significant differences occurred in bone regeneration between oAEC-, oAFMSC-cultured, and Ctr samples and that there was a predominant action of the osteoconduction versus the stem cells osteo-induction. Indeed, it was proven that the newly formed bone amount and distribution decreased from the side of contact scaffold/native bone toward the bulk of the scaffold itself, with almost constant values of morphometric descriptors in volumes more than 1 mm from the border.

scholarly journals Osteotome-Mediated Sinus Lift without Grafting Material: A Review of Literature and a Technique Proposal

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Silvio Taschieri ◽  
Stefano Corbella ◽  
Massimo Saita ◽  
Igor Tsesis ◽  
Massimo Del Fabbro
Keyword(s):  
Survival Rate ◽  
Maxillary Sinus ◽  
Alveolar Bone ◽  
Bone Volume ◽  
Large Sample Size ◽  
Sinus Augmentation ◽  
Lifting Technique ◽  
Maxillary Sinus Augmentation ◽  
Posterior Maxilla ◽  
Grafting Materials

Implant rehabilitation of the edentulous posterior maxilla may be a challenging procedure in the presence of insufficient bone volume for implant placement. Maxillary sinus augmentation with or without using grafting materials aims to provide adequate bone volume. The aim of the present study was to systematically review the existing literature on transalveolar maxillary sinus augmentation without grafting materials and to propose and describe an osteotome-mediated approach in postextraction sites in combination with platelet derivative. The systematic review showed that high implant survival rate (more than 96% after 5 years) can be achieved even without grafting the site, with a low rate of complications. Available alveolar bone height before surgery was not correlated to survival rate. In the described case report, three implants were placed in posterior maxilla after extraction of two teeth. An osteotome-mediated sinus lifting technique was performed with the use of platelet derivative (PRGF); a synthetic bone substitute was used to fill the gaps between implant and socket walls. No complications occurred, and implants were successfully in site after 1 year from prosthetic loading. The presented technique might represent a viable alternative for the treatment of edentulous posterior maxilla with atrophy of the alveolar bone though it needs to be validated by studies with a large sample size.

EFFECT OF PLATELET-RICH PLASMA MIXED WITH A POLYMERIC BONE FILLING MATERIAL ON SINUS FLOOR AUGMENTATION IN RABBITS

2013 ◽  
Vol 25 (05) ◽  
pp. 1340004 ◽  
Author(s):  
Ching-Li Tseng ◽  
Po-Chih Hsu ◽  
Lin-Gwei Wei ◽  
Te-Hsing Wu ◽  
Li-Han Shen ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Platelet Rich Plasma ◽  
Bone Volume ◽  
Filling Material ◽  
Micro Ct ◽  
Sinus Augmentation ◽  
Dental Implantation ◽  
Maxillary Sinus Augmentation ◽  
Sinus Floor ◽  
Bone Filling

Sinus augmentation is a common approach for patients with severe alveolar ridge atrophy but an ideal material to increase the bone volume for dental implantation is still needed. The present study evaluated the effect of a newly developed polymeric bone-filling powder (formed from acrylic acid and N-isopropylacrylamide, ANa) mixed with platelet-rich plasma (PRP) for bone generation in a rabbit model of sinus augmentation. A total of 12 New Zealand White rabbits were randomly divided into three groups based on filling material. All animals underwent a bilateral maxillary sinus augmentation. PRP was prepared using an automatic separation system to obtain a high platelet concentration. ANa powder was individually mixed with phosphate-buffered saline (PBS) or PRP for sinus floor elevation. The left maxillary sinus received the ANa/PBS filling, whereas the right maxillary sinus received a mixture of ANa/PRP gel. Equal volumes of filling material were inserted in each maxillary sinus. Thus, defects with no implantation served as controls. Animals were sacrificed at 4 and 12 weeks, and then all specimens were harvested for micro-computed tomography (micro-CT) and histological analysis. On micro-CT evaluation, ANa/PRP significantly increased the bone volume in maxillary sinus augmentation relative to the negative control and ANa/PBS after 12 weeks. New bone areas with osteocytes and osteon formation were found in all three groups at 12 weeks post-implantation. This study confirms that ANa mixed with PRP can effectively increase the bone volume in the sinus cavity. This benefit for sinus augmentation may increase the success of dental implantation because of the formation of a thin layer of alveolar bone.

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

Scanning ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Xuan Wang ◽  
Tianqi Zhang ◽  
Enli Yang ◽  
Zhiyuan Gong ◽  
Hongzhou Shen ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Bone Quality ◽  
Three Dimensional ◽  
Biomechanical Analysis ◽  
Sinus Augmentation ◽  
Maxillary Sinus Augmentation ◽  
Posterior Maxilla ◽  
Atrophic Maxilla ◽  
Von Mises ◽  
Three Dimensional Finite Element

This study is aimed at determining the optimal sinus augmentation approach considering the poor bone condition in the zone of atrophic posterior maxilla. A series of simplified maxillary segment models varying in residual bone height (RBH) and bone quality were established. A 10 mm standard implant combined with two types of maxillary sinus augmentation methods was applied with the RBH, which was less than 10 mm in the maxilla. The maximal equivalent von Mises (EQV) stress in residual bone was evaluated. Bone quality had an enormous impact on the stress magnitude of supporting bone. Applying sinus augmentation combined with grafts was suitable for stress distribution, and high-stiffness graft performed better than low-stiffness one. For 7 mm and 5 mm atrophic maxilla, nongrafted maxillary sinus augmentation was feasible in D3 bone. Poor bone quality was a negative factor for the implant in the region of atrophic posterior maxilla, which could be improved by grafts. Meanwhile, the choice of maxillary sinus augmentation approaches should be determined by the RBH and quality.

scholarly journals The influence of bone substitute materials on the bone volume after maxillary sinus augmentation: a microcomputerized tomography study

2012 ◽  
Vol 17 (2) ◽  
pp. 543-551 ◽  
Author(s):  
Sebastian Kühl ◽  
Christoph Brochhausen ◽  
Hermann Götz ◽  
Andreas Filippi ◽  
Michael Payer ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Bone Substitute ◽  
Bone Volume ◽  
Sinus Augmentation ◽  
Maxillary Sinus Augmentation ◽  
Bone Substitute Materials ◽  
Substitute Materials

scholarly journals The role of CT and MRI scans in maxillary sinus augmentation surgery

2021 ◽  
Vol 6 (2) ◽  
pp. 57-58
Author(s):  
Bharani Krishna T ◽  
◽  
Mohammad Naffizuddin ◽  
M Sirisha ◽  
Ch.Ram Sunil ◽  
...  
Keyword(s):  
Diagnostic Imaging ◽  
Maxillary Sinus ◽  
Three Dimensional ◽  
Vital Role ◽  
Primary Role ◽  
Sinus Augmentation ◽  
Maxillary Sinus Augmentation ◽  
Posterior Maxilla ◽  
Mri Scans

Diagnostic imaging has a primary role in presurgical planning. Computerized tomography has become a standard for assessing the feasibility of implant surgery. Three- dimensional diagnostic assessments have a decisive value in presurgical treatment planning, especially in situations in which the alveolar process has pronounced resorption, and therefore insufficient bone volume for placing endosseous implants. These situations, which once limited the placement of implants in the posterior maxilla, can now be overcome via maxillary sinus augmentation procedures. In these cases, diagnostic imaging, in particular using CT scans, plays a vital role in providing reliable and necessary information. MR imaging reveals to be ideal imaging in diagnosing maxillary sinus augmentation.

Maxillary Sinus Augmentation with a New Xenograft: A Randomized Controlled Clinical Trial

2014 ◽  
Vol 17 ◽  
pp. e586-e593 ◽  
Author(s):  
Mônica Diuana Calasans-Maia ◽  
Carlos Fernando de A. B. Mourão ◽  
Adriana Terezinha Neves Novellino Alves ◽  
Suelen Cristina Sartoretto ◽  
Marcelo José P. G. de Uzeda ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Maxillary Sinus ◽  
Controlled Clinical Trial ◽  
Randomized Controlled Clinical Trial ◽  
Sinus Augmentation ◽  
Randomized Controlled ◽  
Maxillary Sinus Augmentation
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