A comparative evaluation of parasymphyseal fracture fixation in edentulous patients performed using dynamic navigation systems and Herbert screws with the conventional two-plate method: A study on models

2021 ◽  
Author(s):  
Umut Demetoglu ◽  
Suheyb Bilge
Keyword(s):  
Fracture Fixation ◽  
Comparative Evaluation ◽  
Navigation Systems ◽  
Plate Method ◽  
Dynamic Navigation ◽  
Edentulous Patients

scholarly journals Comparative evaluation between the “All on Four” and “Four on Pillars” techniques in 3D virtual planning associated with guided surgery on atrophic jaws

2021 ◽  
Vol 10 (14) ◽  
pp. e118101422021
Author(s):  
Marcelo do Lago Pimentel Maia ◽  
Daniel Souza Ferreira Magalhães
Keyword(s):  
Comparative Evaluation ◽  
Surgical Planning ◽  
Statistical Difference ◽  
Technical Knowledge ◽  
Successful Performance ◽  
Virtual Planning ◽  
Guided Surgery ◽  
Average Area ◽  
Maxillary Surgery ◽  
Edentulous Patients

Thorough technical knowledge and anatomical understanding are critical for optimal surgical results. The difficulty of complete maxillary surgery can vary significantly depending on the complexity of the anatomy or bone defect. In this work, we analyze and compare two methods of software-guided planning for the manipulation of dental implants, associated with the All on Four (ALL) and Four on pillars (FOUR) techniques used in patients with atrophic maxillae. Forty-two images of totally edentulous patients were analyzed, and surgical planning was performed using both methods. The average area of the Four on pillars technique is 4.9x (p<0.0001) greater than the average area of the All on four technique, this represents a difference of 489%. This means that, for the same force applied by the jaw, we will have a 4.9x smaller pressure, that is, a better distribution of forces on the jaws. It was not possible to notice a statistical difference between the success proportions (p=0.2542), this means that both techniques have a non-different (similar) success proportion. We conclude that the area of the polygon formed in the Four on pillars surgical plan is larger than in the All on four plan and this results in significantly less pressure on the implants. We also concluded that it was not possible to notice a statistical difference between the proportions of success, which shows that there is no technique with successful performance advantages over the other.

scholarly journals Dynamic Navigation for Zygomatic Implants: A Case Report about a Protocol with Intraoral Anchored Reference Tool and an Up-To-Date Review of the Available Protocols

2020 ◽  
Vol 3 (4) ◽  
pp. 75
Author(s):  
Gerardo Pellegrino ◽  
Giuseppe Lizio ◽  
Francesco Basile ◽  
Luigi Vito Stefanelli ◽  
Claudio Marchetti ◽  
...  
Keyword(s):  
Navigation Systems ◽  
Radiological Anatomy ◽  
Implant Placement ◽  
Zygomatic Implants ◽  
Dynamic Navigation ◽  
Operative Planning ◽  
Placement Accuracy ◽  
Zygomatic Implant ◽  
Maxillary Atrophy ◽  
Reference Tool

Dynamic Navigation is a computer-aided technology that allows the surgeon to track the grip instruments while preparing the implant site in real time based on radiological anatomy and accurate pre-operative planning. The support of this technology to the zygoma implant placement aims to reduce the risks and the errors associated with this complex surgical and prosthetic treatment. Various navigation systems are available to clinicians currently, distinguished by handling, reliability, and the associated economic and biological benefits and disadvantages. The present paper reports on the different protocols of dynamic navigations following a standard workflow in correlation with zygomatic implant supported rehabilitations and describes a case of maxillary atrophy successfully resolved with this technology. An innovative and minimally invasive dynamic navigation system, with the use of an intraoral anchored trust marker plate and a patient reference tool, has been adopted to support the accurate insertion of four zygomatic implants, which rapidly resolved maxillary atrophy from a 75-year-old male system. This approach provided an optimal implant placement accuracy reducing surgical invasiveness.

scholarly journals Comparative Evaluation of Different Hand Sanitizers

2021 ◽  
Vol 68 (2) ◽  
Author(s):  
Ashwini Ramchandra Ingole ◽  
Viral Uttam Ramani ◽  
Manish Anant Kamble ◽  
Disha Motiram Dhabarde ◽  
Jagdish Radheshyam Baheti
Keyword(s):  
Antimicrobial Activity ◽  
Comparative Evaluation ◽  
The Body ◽  
Personal Hygiene ◽  
Evidence Based ◽  
Zone Of Inhibition ◽  
Standard Samples ◽  
Plate Method

Hygiene is associated with prevention of disease and promoting health. The importance of hygiene is universally recognized, and evidence based. Hands are the part of body which helps in touching various objects and surfaces and performing various works. They are involved in cooking and eating. Children and even adults are required to sanitize hands to prevent the contamination and entry of microbes in the body through hands. Bacteria associated with the hands are termed micro flora of the hands which include Propionibacterium, Staphylococcus and others which could be reduced depending on personal hygiene and environment of humans. Hand sanitizers are available in market and helps to clean and sanitize hands. The present work deals with the comparison of some brands of hand sanitizers for their antimicrobial activity. The activity is evaluated by using cup and plate method with Ciprofloxacin as a standard. Samples of four brands of sanitizers like Sterillium, IMC herbal, Savlon and Jungle Magic were prepared by diluting them. All the samples were poured in agar wells and the zone of inhibition of each sample was measured. From the study it was concluded that IMC herbal sanitizer was found to be more efficient than other sanitizers.

Comparison of static and dynamic navigation systems for insertion of dental implants

2004 ◽  
Vol 1268 ◽  
pp. 1378
Author(s):  
M. Zinser ◽  
J. Neugebauer ◽  
R.A. Mischkowski ◽  
V.E. Karapedian ◽  
A. Kübler ◽  
...  
Keyword(s):  
Dental Implants ◽  
Navigation Systems ◽  
Dynamic Navigation

Comparison of the accuracy of pilot-drill-guided and fully guided implant surgery with dynamic navigation. In vitro model study

2021 ◽  
Author(s):  
Umut Demetoglu ◽  
Suheyb Bilge ◽  
Senol Aslan ◽  
Hasan Onur Simsek
Keyword(s):  
Navigation System ◽  
Control Group ◽  
Study Group ◽  
Angular Deviation ◽  
Navigation Systems ◽  
Pilot Hole ◽  
Model Study ◽  
Dynamic Navigation ◽  
Vitro Model

The aims of the present study are to measure and compare dental implant deviations with fully guided and pilot-drill-guided protocols using dynamic navigation systems in polyurethane models. The pilot-drill-guided group was determined to be the study group and included 12 implant applications. In this group, the pilot hole was drilled with navigation guidance, and the procedure was completed freehandedly. In the control group, all the drilling and implant placement steps were performed using the navigation system, and a total of 12 implants were placed. The pre- and postoperative images were compared to calculate the magnitude of implant deviation. The quantitative data of the two groups were compared using the independent-samples t-test and Mann-Whitney U-test. The analyses revealed that the length of the procedure significantly differed between the two groups (p &lt; 0.001). The procedure duration was significantly shorter in the study group. The entry deviation values of the two groups were not significantly different (p = 0.079). The analysis revealed the apex deviation to be higher in the study group than in the control group (p = 0.003). However, the two-dimensional vertical apex deviation values of the implants were not significantly different between groups (p = 0.068). Angular deviation was determined to be significantly higher in the study group (p &lt; 0.001). In the present study, all implants were successfully placed in the models using a dynamic navigation system. The results of this study may be useful for future clinical studies.

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