3D Cone Beam Radiodensitometry in Evaluation of Hydroxyapatite (HAP)/Tissue Hybrid after Maxillary Sinus Floor Elevation

2011 ◽  
Vol 222 ◽  
pp. 251-254 ◽  
Author(s):  
Girts Salms ◽  
Ilze Salma ◽  
Andrejs Skagers ◽  
Janis Locs
Keyword(s):  
Maxillary Sinus ◽  
Dental Implant ◽  
Alveolar Bone ◽  
Cone Beam ◽  
Study Patient ◽  
Sinus Floor Elevation ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Augmentation

Clinical and radiological outcomes of one and two stage maxillary sinus floor augmentation with HAP granules and dental implant insertion, degree of mineralization of residual bone and augmented sinus part were evaluated. 180 dental implant insertions in 84 patients in the age from 32-68 years were included in this study. Patient clinical and CBCT (Cone Beam Computer Tomography) were analyzed by quantitative radiodensitometry using HU (Hounsfield units) after 1 to 5 years after functional loading. Four implants were lost during osseointegration phase the 176 implants survived. We found 2.5 times denser synthetic HAP/bone area comparing with residual bone. With time there was a decrease in radiodensity in HAP augmented maxillary sinus area and an increase of radiodensity in the area of residual alveolar bone.

Surgical Ciliated Cyst Following Maxillary Sinus Floor Augmentation: A Case Report

2017 ◽  
Vol 43 (5) ◽  
pp. 360-364 ◽  
Author(s):  
Shinsuke Yamamoto ◽  
Keigo Maeda ◽  
Izumi Kouchi ◽  
Yuzo Hirai ◽  
Naoki Taniike ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Alveolar Bone ◽  
Maxillary Sinusitis ◽  
Critical Role ◽  
Japanese Woman ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Augmentation ◽  
Ciliated Cyst

Maxillary sinus floor augmentation is considered to play a critical role in dental implant treatment. Although many complications, such as maxillary sinusitis and infection, are well known, few reports are available on the risk of surgical ciliated cyst following the procedure. Here, we report a case of surgical ciliated cyst following maxillary sinus floor augmentation. A 55-year-old Japanese woman was referred to our hospital because of alveolar bone atrophy in the bilateral maxilla. We performed bilateral maxillary sinus floor augmentation by the lateral window technique without covering the window. The Schneiderian membrane did not perforate during the operation. She returned to our hospital after 9 years due to swelling of the left buccal region. Computerized tomography revealed a well-defined radiolucent area with radiodense border intraosseously localized in the left maxilla. We performed enucleation of the cyst with the patient under general anesthesia. Histological examination of the specimen showed a surgical ciliated cyst. In conclusion, the course of this patient has 2 important implications. First, the sinus membrane entrapped in the grafted bone without visible perforation and or tearing can develop into a surgical ciliated cyst. Second, there is a possibility that covering the lateral window tightly might prevent the development of a surgical ciliated cyst.

scholarly journals Direct maxillary sinus floor augmentation for simultaneous dental implant placement

2018 ◽  
Vol 8 (2) ◽  
pp. 188 ◽  
Author(s):  
Mamit Kumar ◽  
Sumit Chopra ◽  
Debdutta Das ◽  
Monika Gupta ◽  
Jyoti Memoalia ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Dental Implant ◽  
Implant Placement ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Augmentation

scholarly journals The Influence of Residual Alveolar Bone Height on Graft Composition after Maxillary Sinus Augmentation Using Two Different Xenografts: A Histomorphometric Comparative Study

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5093
Author(s):  
Silvio Taschieri ◽  
Moses Ofer ◽  
Stefano Corbella ◽  
Tiziano Testori ◽  
Claudia Dellavia ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Alveolar Bone ◽  
Lamellar Bone ◽  
Sinus Augmentation ◽  
Woven Bone ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Augmentation ◽  
Bone Height

Aim: To evaluate the hypothesis of a correlation between the preoperative residual alveolar bone height (RBH) and graft maturation after maxillary sinus floor augmentation procedures using two different bone substitutes. Methods: A total of 20 patients who underwent unilateral maxillary sinus floor augmentation with either mineralized deproteinized bovine bone (DBBM) or a xenograft enriched with polymer and gelatin (NBS) were included in this prospective study. Six months after sinus surgery, bone biopsies were harvested with a 3.2 mm diameter trephine bur, prior to dental implant placement. Histomorphometric analysis was performed, and the results were correlated with the individual RBH. Implants were loaded after 5 months of insertion, and 1-year implant success and marginal bone level change were assessed. Results: RBH was 2.17 ± 1.11 mm (range 0.5–3.5 mm) and 2.14 ± 0.72 mm (range 0.5–3.0 mm) in the NBS and DBBM group, respectively. The biopsy analyses for the DBBM group showed woven bone increases by 5.08% per 1-mm increment of RBH; medullary spaces decreased by 9.02%, osteoid decreased by 4.4%, residual biomaterial decreased by 0.34%, and lamellar bone increased by 5.68% per 1-mm increase of RBH. In the NBS group, samples showed woven bone increases by 8.08% per 1-mm increase of RBH; medullary spaces decreased by 0.38%; osteoid increased by 1.34%, residual biomaterial decreased by 0.58%, and lamellar bone decreased by 5.50% per 1-mm increase of RBH. There was no statistically significant difference in the correlation between RBH and lamellar bone, woven bone, and osteoid, independently of the material used. Implant success was 100% in both groups, and marginal bone loss was 1.02 ± 0.42 mm in DBBM and 0.95 ± 0.31 mm in the NBS group after the 1-year follow-up. Conclusion: In spite of the absence of significance, the observed trend for woven bone to increase and medullary spaces to decrease when RBH increases deserves attention. Residual bone dimension might be a determinant in the bone graft maturation after maxillary sinus augmentation.

scholarly journals Morphometric and Histomorphometric Evaluations of High-Purity Macro/Microporous β-TCP in Maxillary Sinus Floor Elevation

2021 ◽  
Author(s):  
Atsushi Fujita ◽  
Chonji Fukumoto ◽  
Tomonori Hasegawa ◽  
Yuta Sawatani ◽  
Hitoshi Kawamata
Keyword(s):  
Maxillary Sinus ◽  
Dental Implant ◽  
Alveolar Bone ◽  
Bone Biopsy ◽  
Sinus Floor Elevation ◽  
Implant Placement ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Morphometric Evaluation ◽  
Maxillary Sinus Floor Elevation

Abstract Background: The present study examined the effectiveness of high-purity macro/microporous beta-tricalcium phosphate (HPMM β-TCP) as a bone grafting material for maxillary sinus floor elevation by morphometric and histopathological, histomorphometric evaluations.Methods: Ten maxillary sinus floor elevation procedures using 100% HPMM β-TCP were performed on 10 patients. Morphometric evaluation was carried out by CT imaging immediately after augmentation and prior to dental implant placement after 7 months.Histopathological and histomorphometric evaluation were carried out by bone biopsy retrieval at the time of dental implant placement 7 months after sinus floor elevation. Results: All 10 sinus floor elevations were successful. Morphometric evaluation by CT images showed that the vertical height and the volume gained by sinus floor elevation decreased 7 months after surgery. Histopathological evaluation by bone biopsy retrieval specimens showed no signs of inflammation at the newly formed bone area and the native alveolar bone area. New bone formation was observed at the cranial side from the native alveolar bone. The newly formed bone had a trabecular structure and was in intimate contact with the HPMM β-TCP material. Histomorphometric evaluation by bone biopsy retrieval specimens revealed an average new bone volume of 33.97%±2.79% and an average residual HPMM β-TCP volume of 15.81%±4.52%.Conclusions: In this study, HPMM β-TCP showed the osteoconductive properties for vertical augmentation of the atrophied maxilla by means of a maxillary sinus floor elevation procedure allowing subsequent dental implant placement after a 7-month healing period.

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