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Sinus augmentation

Karine C Flor, Elaine F Silva, Miguel F Menezes, Gustavo R Pedrino, Eduardo Colombari, Daniel B Zoccal
Exposure to chronic sustained hypoxia (SH), as experienced in high altitudes, elicits an increase in ventilation, named ventilatory acclimatization to hypoxia (VAH). We previously showed that rats exposed to short-term (24 h) SH exhibit enhanced abdominal expiratory motor activity at rest, accompanied by augmented baseline sympathetic vasoconstrictor activity. In the present study, we investigated whether the respiratory and sympathetic changes elicited by short-term SH are accompanied by carotid body chemoreceptor sensitization...
2018: Frontiers in Physiology
Rampalli Viswa Chandra, Neeraja Suvvari, Aileni Amarender Reddy
PURPOSE: The aim of this study was to clinically and radiographically compare the trephine core procedure and the bone-added osteotome sinus floor elevation technique in the augmentation of the sinus floor. MATERIALS AND METHODS: A single site in each subject requiring sinus augmentation where the residual bone height was ~4 mm was randomly allocated to either the trephine core procedure or the bone-added osteotome sinus floor elevation technique. Measures of bone fill and bone height were also acquired through scans from cone beam computed tomography obtained before the sinus augmentation procedure (baseline) and before implant placement at approximately 6 months postoperatively...
March 2018: International Journal of Oral & Maxillofacial Implants
Shuanglun Xie, Benoit Desjardins, Maciej Kubala, Jackson Liang, Jiandu Yang, Rob J van der Geest, Robert Schaller, Michael Riley, David Callans, Erica Zado Pac, Francis Marchlinski, Saman Nazarian
BACKGROUND: Criteria for identification of anatomic ventricular tachycardia (VT) substrates in arrhythmogenic right ventricular cardiomyopathy (ARVC) on late gadolinium enhancement (LGE) cardiac magnetic resonance (CMR) are unclear. OBJECTIVE: We sought to define a) the association of regional RV epicardial voltage amplitude with the distribution of LGE, and b) appropriate image signal intensity (SI) thresholds for VT substrate identification, in ARVC. METHODS: Pre-procedural LGE-CMR and epicardial electrogram mapping were performed in 10 ARVC patients...
March 1, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Amin Rahpeyma, Saeedeh Khajehahmadi
Maxillary sinus antrolithisis is a rare finding. Conservative surgical removal recommended. In the patients that need to maxillary intrasinus augmentation and antrolith is observed in preoperative radiography, 2 options remain. First, doing Caldwell-luc surgery to remove antrolith and delayed open sinus lift. Second way is removing antrolith and concomitant intrasinus augmentation.The first way has 2 disadvantages: prolonged waiting period and difficulty of open sinus lift in sinuses with scar and fibrosis...
March 1, 2018: Journal of Craniofacial Surgery
Gustavo Da Dos Santos Pinto, Suzane Cristina Pigossi, Tércio Pessoa, Lélis Gustavo Nícoli, Raphael Ferreira de Souza Bezerra Araújo, Cláudio Marcantonio, Elcio Marcantonio
PURPOSE: The aim of this case report was to demonstrate the repair of a large sinus membrane perforation related to a sinus floor augmentation procedure, using leukocyte platelet-rich fibrin (L-PRF), for subsequent rehabilitation of a partially edentulous patient. MATERIALS AND METHODS: The patient presented the absence of teeth numbers 18, 17, and 16, associated with insufficient bone height because of the maxillary sinus pneumatization. A maxillary inlay bone graft was proposed, however, during the sinus floor augmentation procedure, a large portion of the sinus membrane was ruptured...
February 16, 2018: Implant Dentistry
Elton Carlos Pichotano, Rafael Scaf de Molon, Luiz Guilherme Freitas de Paula, Ricardo Violante de Souza, Elcio Marcantonio, Daniela Leal Zandim-Barcelos
This case report aimed to describe the effects of leukocyte and platelet-rich fibrin (L-PRF) associated with deproteinized bovine bone mineral (DBBM) and absorbable collagen membrane (CM) on bone regeneration in maxillary sinus augmentation. A 59-year-old male patient was referred to the Department of Periodontology for implant rehabilitation of his edentulous upper jaw. The treatment plan involved maxillary sinus augmentation followed by implants installation. A split-mouth design was employed, in which the right maxillary sinus was filled using L-PRF, DBBM, and CM; the left side was filled with DBBM and CM...
February 19, 2018: Journal of Oral Implantology
Benedicta E Beck-Broichsitter, Dorothea Westhoff, Eleonore Behrens, Jörg Wiltfang, Stephan T Becker
BACKGROUND: Until now, sinus floor elevation represents the gold standard procedure in the atrophic maxilla in order to facilitate dental implant insertion. Although the procedure remains highly predictive, the perforation of the Schneiderian membrane might compromise the stability of the augmented bone and implant success due to chronic sinus infection. The aim of this retrospective cohort study was to show that a membrane tear, if detected and surgically properly addressed, has no influence on the survival of dental implants and bone resorption in the augmented area...
February 5, 2018: International Journal of Implant Dentistry
Komal Ladha, Ankit Sharma, Bhawana Tiwari, Dwaraka N Bukya
The aim of the present article is to review the success of bone augmentation performed as an adjunct to dental implant rehabilitation in patients with diabetes mellitus. A literature review was conducted in PubMed on this topic, which yielded a total of 102 publications. For inclusion, publications had to be human studies, written in English language and should report on the success of bone augmentation as an adjunct to dental implant rehabilitation in diabetic patients. After screening the titles and abstracts, 11 full texts publications were obtained, of which seven were included in the review...
July 2017: National Journal of Maxillofacial Surgery
Kivovics Márton, Szabó Bence Tamás, Németh Orsolya, Czinkóczky Béla, Dőri Ferenc, Nagy Péter, Dobó-Nagy Csaba, Csönge Lajos, Lacza Zsombor, Mijiritsky Eitan, Szabó György
Serum albumin has been identified as an endogenous protein that is integral to early bone regeneration. We hypothesized that albumin addition to allografts may result in better bone remodeling than what can be achieved with anorganic xenografts. Sinus elevations were performed at 32 sites of 18 patients with the lateral window technique. Sites either received filling with an anorganic bovine bone mineral (ABBM, BioOss, Geistlich, CH) or albumin impregnated allograft (BoneAlbumin, OrthoSera, AT). After 6-months patients received dental implants and 16 bone core biopsy samples were obtained from the ABBM filled, and 16 from the BoneAlbumin augmented sites...
January 28, 2018: Materials
Corinne Jordi, Khaled Mukaddam, Jörg Thomas Lambrecht, Sebastian Kühl
OBJECTIVES: Maxillary sinus augmentation (MSA) is a successful and predictable intervention with low complication rates. Perforations of the Schneiderian membrane may occur impairing the general success. The aim of this study was to compare the incidence of membrane perforations between conventional rotating instruments and piezoelectric devices in a meta-analysis. MATERIAL AND METHODS: An electronic research on MEDLINE and PubMed database was performed evaluating the literature from 1980 till 2016...
January 29, 2018: International Journal of Implant Dentistry
Jung-Seok Lee, Jae-Kook Cha, Daniel S Thoma, Ui-Won Jung
OBJECTIVE: This study of a human autopsy case aimed to characterize the histologic and micro-computed tomographic results of maxillary sinus augmentation using a synthetic bone substitute and simultaneous implant placement at 6 years. MATERIAL AND METHODS: This report is based on the whole-body donation of a 62-year-old male patient who died due to bladder cancer. Implants had been placed in conjunction with sinus augmentation using a mixture of biphasic calcium phosphate and autogenous bone into both maxillary sinuses 6 years prior to the body donation...
January 18, 2018: Clinical Oral Implants Research
Hong Jin Kim, Woong Gyu Na, Sung Won Jung, Sung Hoon Koh, Hyoseob Lim
Beta tricalcium phosphate (β-TCP) is one of allogenic bone substitute which is known to have interconnected pores that draws cell and nutrients for bone generation. It has been resulted in good outcomes for bone defect coverage or augmentation. However, several studies have also reported negative outcomes and associated complications including unexpected formation of cystic mass, continuous pain and secretion. We present the case of a 36-year-old man with a right cheek cystic mass who had a history of right zygomaticomaxillary (ZM) complex fracture and surgical correction with β-TCP powder insertion to ZM bone defect...
December 2017: Archives of Craniofacial Surgery
Takeshi Tohyama, Keita Saku, Toru Kawada, Takuya Kishi, Keimei Yoshida, Takuya Nishikawa, Hiroshi Mannoji, Kazuhiro Kamada, Kenji Sunagawa, Hiroyuki Tsutsui
BACKGROUND: Lipopolysaccharide (LPS) induces acute inflammation, activates sympathetic nerve activity (SNA) and alters hemodynamics. Since the arterial baroreflex is a negative feedback system to stabilize arterial pressure (AP), examining the arterial baroreflex function is a prerequisite to understanding complex hemodynamics under LPS challenge. We investigated the impact of LPS-induced acute inflammation on SNA and AP regulation by performing baroreflex open-loop analysis. METHODS: Ten anesthetized Sprague-Dawley rats were used...
2018: PloS One
Wioletta Pijacka, Pedro L Katayama, Helio C Salgado, Gisele S Lincevicius, Ruy R Campos, Fiona D McBryde, Julian F R Paton
The carotid body has recently emerged as a promising therapeutic target for treating cardiovascular disease, however the potential impact of carotid bodies removal on the dynamic cardiovascular responses to acute stressors such as exercise, hypoxia and hypercapnia in hypertension is an important safety consideration that has not been studied. We first validated a novel surgical approach to selectively resect the carotid bodies bilaterally (CBR) sparing the carotid sinus baroreflex. Second, we evaluated the impact of CBR on the cardiovascular responses to exercise, hypoxia and hypercapnia in the conscious, chronically instrumented spontaneously hypertensive (SH) rats...
January 5, 2018: Journal of Physiology
Adriana Dibo Cruz, Guilherme Alvares Peixoto, Marcelo Freitas Aguiar, Gabriela Alessandra Cruz Galhardo Camargo, Nicolas Homs
This study aimed to assess the performance of surgeons in determining the amount of graft material required for maxillary sinus floor augmentation in a preoperative analysis using cone-beam computed tomography images. A convenience sample of 10 retrospective CBCT exams (i-CAT®) was selected. Scans of the posterior maxilla area with an absence of at least one tooth and residual alveolar bone with an up to 5 mm height were used. Templates (n=20) contained images of representative cross-sections in multiplanar view...
May 2017: Brazilian Dental Journal
V R Balaji, R Lambodharan, D Manikandan, S Deenadayalan
Replacement of missing teeth in the posterior maxilla is always a challenge for the treating implant surgeon as the posterior maxilla has several obstacles in the form of quality, quantity, the anatomy of the maxillary sinus, and inaccessibility. To overcome these deficiencies, several surgical procedures such as sinus lift, bone augmentation, tilted implants, short implants, and zygomatic implants were tried. Since these procedures have their own limitations, pterygomaxillary region provides us an excellent place for placement of implant and rehabilitation of posterior maxilla...
November 2017: Journal of Pharmacy & Bioallied Sciences
Trbakovic Amela, Hedenqvist Patricia, Mellgren Torbjörn, Ley Cecilia, Hilborn Jöns, Ossipov Dmitri, Ekman Stina, Johansson B Carina, Waern-Jensen Marianne, Thor Andreas
OBJECTIVES: The aim of this study was to investigate if a synthetic granular calcium phosphate compound (CPC) and a composite bisphosphonate-linked hyaluronic acid-calcium phosphate hydrogel (HABP·CaP) induced similar or more amount of bone as bovine mineral in a modified sinus lift rabbit model. MATERIAL AND METHODS: Eighteen adult male New Zeeland White rabbits, received randomly one of the two test materials on a random side of the face, and bovine mineral as control on the contralateral side...
December 16, 2017: Journal of Dentistry
R S Pereira, J D Menezes, J P Bonardi, G L Griza, R Okamoto, E Hochuli-Vieira
The aim of this study was to compare the volumetric changes and the new bone microarchitecture in human maxillary sinuses augmented with bioactive glass (Biogran) alone, bioactive glass combined with autogenous bone graft (1:1), or autogenous bone graft alone. Twelve maxillary sinuses were grafted with bioactive glass (group 1), nine with bioactive glass mixed with autogenous bone graft 1:1 (group 2), and 12 with autogenous bone graft (group 3). Patients underwent cone beam computed tomography 15days after the procedure to determine the initial volume of the graft (T1) and again 6 months later (T2)...
December 12, 2017: International Journal of Oral and Maxillofacial Surgery
Rosario Rizzo, Alessandro Quaranta, Massimo De Paoli, Giorgio Rappelli, Matteo Piemontese
This study proposed a surgical technique that solves three-dimensional conditions of extreme bone atrophy. A total of 278 surgeries with transcrestal sinus lift and fresh frozen allogenous bone blocks were performed. A total of 1,024 implants were placed. After 60 months of observation, 969 implants were considered grade I (successful), 24 grade II (satisfactory survival), and 8 grade III (compromised survival). The cumulative success and survival rates, respectively, were 94.6% and 97.7%. This innovative procedure is very effective in selected cases...
January 2018: International Journal of Periodontics & Restorative Dentistry
Silvio Mario Meloni, Sascha Alekshander Jovanovic, Milena Pisano, Erta Xhanari, Giacomo De Riu, Antonio Tullio, Marco Tallarico
PURPOSE: To compare the outcome of implants inserted in maxillary sinuses augmented with anorganic bovine bone (ABB) grafts vs mixed 50% ABB and 50% autologous bone graft, using a lateral window approach. MATERIALS AND METHODS: This study was designed as a randomised controlled trial of parallel groups. Patients in need of an implant-supported prosthesis in a maxillary posterior area with a residual alveolar bone height no greater than 4 mm (range 0-4 mm) were recruited for lateral sinus grafting...
2017: European Journal of Oral Implantology
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