scholarly journals Goat Model for Direct Visualizing the Effectiveness of Detaching Sinus Mucosa in Real Time During Crestal Maxillary Sinus Floor Elevation

2017 ◽  
Vol 43 (4) ◽  
pp. 247-253
Author(s):  
Jiadong Fan ◽  
Pin Hu ◽  
Yanfeng Li ◽  
Fuli Wang ◽  
Xinming Dong ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Real Time ◽  
Ex Vivo ◽  
Sinus Lift ◽  
Sinus Floor Elevation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Elevation ◽  
Sinus Mucosa ◽  
Space Volume

The procedure of crestal maxillary sinus floor elevation presents a great challenge to the field of implant dentistry. Due to the limited visualization in this procedure, the effectiveness of detaching sinus mucosa could not be assessed in real time. We recently developed an ex vivo goat sinus model by cutting the goat residual skulls along four lines determined from computerized tomography (CT) scans, extracting the maxillary premolar or molar teeth, and preparing implant socket in the maxilla. The generated ex vivo goat sinus models exposed the maxilla and the whole maxillary sinus mucosa, thus enabling real-time observation of detaching maxillary sinus mucosa via directly visualizing the working situation of sinus lift tool in the models and directly measuring the length of detached mucosa and space volume generated under the elevated sinus mucosa. One commercially available umbrella-shaped sinus lift curette was used to detach the maxillary sinus mucosa to evaluate the effectiveness of the ex vivo goat sinus models. The results showed that this curette could detach the sinus mucosa 3.75 mm in length in the mesiodistal direction and 2.81 mm in the buccal-palatal direction. Moreover, a space volume of 52.7 μl could be created under the elevated sinus mucosa in the goat ex vivo models. All the experimental results suggested that this ex vivo goat sinus model might be useful in the evaluation of improved or newly designed sinus lift tools for elevating the maxillary sinus mucosa via the crestal approach.

scholarly journals Schneider Membrane Elevation in Presence of Sinus Septa: Anatomic Features and Surgical Management

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Mario Beretta ◽  
Marco Cicciù ◽  
Ennio Bramanti ◽  
Carlo Maiorana
Keyword(s):  
Maxillary Sinus ◽  
Lateral Approach ◽  
Sinus Lift ◽  
Sinus Floor Elevation ◽  
Posterior Maxilla ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
The Right ◽  
Maxillary Sinus Floor Elevation ◽  
Gothic Arch

Maxillary sinus floor elevation via a lateral approach is a predictable technique to increase bone volume of the edentulous posterior maxilla and consequently for dental implants placement. The sinus floor is elevated and it can be augmented with either autologous or xenogeneic bone grafts following an opening bone window created on the facial buccal wall. Maxillary septa are walls of cortical bone within the maxillary sinus. The septa shape has been described as an inverted gothic arch arising from the inferior or lateral walls of the sinus and may even divide the sinus into two or more cavities. Some authors have reported a higher prevalence of septa in atrophic edentulous areas than in nonatrophic ones. Radiographic identification of these structures is important in order to perform the right design of the lateral window during sinus lift. Aim of this investigation is to highlight the correct steps for doing sinus lift surgery in presence of those anatomic variations. Clinicians should always perform clinical and radiographic diagnosis in order to avoid complications related to the sinus lift surgery.

scholarly journals Feasibility of Shape-Memory Ni/Ti Alloy Wire Containing Tube Elevators for Transcrestal Detaching Maxillary Sinus Mucosa: Ex Vivo Study

2016 ◽  
Vol 40 (5) ◽  
pp. 944-952 ◽  
Author(s):  
Yanfeng Li ◽  
Fuli Wang ◽  
Pin Hu ◽  
Jiadong Fan ◽  
Yishi Han ◽  
...  
Keyword(s):  
Shape Memory ◽  
Maxillary Sinus ◽  
Ex Vivo ◽  
Ti Alloy ◽  
Alloy Wire ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Distal Direction ◽  
Sinus Mucosa ◽  
Space Volume

Background: Osteotome sinus floor elevation is a less invasive approach to augment an insufficient alveolar bone at the posterior maxilla for dental implantation. However, this approach has some limitations due to the lack of sinus lift tools available for clinical use and the small transcrestal access to the maxillary sinus floor. We recently invented shape-memory Ni/Ti alloy wire containing tube elevators for transcrestal detaching maxillary sinus mucosa, and developed goat ex vivo models for direct visualizing the effectiveness of detaching sinus mucosa in real time during transcrestal maxillary sinus floor elevation. Methods: We evaluated our invented elevators, namely elevator 012 and elevator 014, for their effectiveness for transcrestal detaching maxillary sinus mucosa using the goat ex vivo models. We measured the length of sinus mucosa detached in mesial and distal directions or buccal and palatal directions, and the space volume created by detaching maxillary sinus mucosa in mesial, distal, buccal and palatal directions using the invented elevators. Results: Elevator 012 had a shape-memory Ni/Ti alloy wire with a diameter of 0.012 inch, while elevator 014 had its shape-memory Ni/Ti alloy wire with a diameter of 0.014 inch. Elevator 012 could detach the goat maxillary sinus mucosa in the mesial or distal direction for 12.1±4.3 mm, while in the buccal or palatal direction for 12.5±6.7 mm. The elevator 014 could detach the goat maxillary sinus mucosa for 23.0±4.9 mm in the mesial or distal direction, and for 19.0±8.1 mm in the buccal or palatal direction. An average space volume of 1.7936±0.2079 ml was created after detaching the goat maxillay sinus mucosa in both mesial/distal direction and buccal/palatal direction using elevator 012; while the average space volume created using elevator 014 was 1.8764±0.2366 ml. Conclusion: Both two newly invented tube elevators could effectively detach the maxillary sinus mucosa on the goat ex vivo sinus models. Moreover, elevator 014 has advantages over the elevator 012 for the capability to detach sinus mucosa.

scholarly journals Maxillary Sinus Floor Elevation

2018 ◽  
Vol 2 (2) ◽  
pp. 495-498
Author(s):  
Jorge Gatica ◽  
Claudio Garayar
Keyword(s):  
Maxillary Sinus ◽  
Oral Surgery ◽  
Sinus Lift ◽  
Sinus Floor Elevation ◽  
Rehabilitative Treatment ◽  
Implant Placement ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Bone Height ◽  
Maxillary Sinus Floor Elevation

The sinus lift is a procedure that is used frequently in oral surgery, different techniques exist to perform this procedure approaches, which allow the surgeon to give a sufficient bone height for planning a rehabilitative treatment with implant at the required site. In this case the unilateral lifting of the maxillary sinus floor by buccal bone window, with subsequent implant placement and lyophilized human bone in a single surgical procedure.

Radiological sinus lift: a new minimally invasive CT-guided procedure for maxillary sinus floor elevation in implant dentistry

2015 ◽  
Vol 27 (3) ◽  
pp. 341-347 ◽  
Author(s):  
Jean-François Matern ◽  
Pierre Keller ◽  
Jean Carvalho ◽  
Jean-Philippe Dillenseger ◽  
Francis Veillon ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Maxillary Sinus ◽  
Sinus Lift ◽  
Ct Guided ◽  
Sinus Floor Elevation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Implant Dentistry ◽  
Maxillary Sinus Floor Elevation

Lamb Ex Vivo Model for Training in Maxillary Sinus Floor Elevation Surgery: A Comparative Study With Human Standards

2012 ◽  
Vol 83 (3) ◽  
pp. 354-361 ◽  
Author(s):  
Javier López-Niño ◽  
Lucía García-Caballero ◽  
Antonio González-Mosquera ◽  
Juan Seoane-Romero ◽  
Pablo Varela-Centelles ◽  
...  
Keyword(s):  
Comparative Study ◽  
Maxillary Sinus ◽  
Ex Vivo ◽  
Ex Vivo Model ◽  
Sinus Floor Elevation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Elevation

scholarly journals Influence of Anatomical Parameters on the Dimensions of the Subantral Space and Sinus Mucosa Thickening after Sinus Floor Elevation. A Retrospective Cone Beam Computed Tomography Study

2021 ◽  
Vol 9 (7) ◽  
pp. 76
Author(s):  
Yuki Omori ◽  
Yasushi Nakajima ◽  
Hideki Imai ◽  
Daichi Yonezawa ◽  
Mauro Ferri ◽  
...  
Keyword(s):  
Cone Beam ◽  
Sinus Floor Elevation ◽  
Axis Parallel ◽  
Height Gain ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Elevation ◽  
Sinus Mucosa ◽  
Anatomical Parameters ◽  
Maxillary Sinuses

Background: Various anatomical parameters might influence the surgical approach for maxillary sinus floor elevation. The objective of the present study was to retrospectively evaluate the influence of anatomical parameters on the dimensions of the subantral space and of the sinus mucosa thickening after sinus floor elevation. Material and Methods: Seventy-eight maxillary sinuses in sixty-five patients were evaluated on cone beam computed tomographies taken before surgery and after one week (t1w) and nine months (t9m). Several parameters such as the distance XF between an axis parallel to the base of the nose (X-axes) and the sinus floor (F) were correlated with the height gain (IF) at t1w and t9m and the post-surgical edema. Results: A weak significant positive correlation was observed between height gain vs. sinus height of interest (XF), the balcony, and the sinus floor angle. The post-surgical edema was influenced by the initial mucosa thickness and the xenograft used. Conclusions: Various parameters might affect height gain and sinus mucosa thickening after sinus floor elevation. The height of interest, the balcony, and the sinus floor angle showed significant correlations with height gain. The initial thickness of the mucosa and the biomaterial used influenced the post-surgical edema.

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