OTA Lab & Tech Theatre

Course Details

24th January 2020

Olympia London

9:30am - 4:00pm

£0.00 per attendee

CPD Hours: 4.5

Course Code: DLO2007A

The OTA Lab & Tech Theatre is a free course.

DEVELOPMENT OUTCOMES: B D

Sponsored by:

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09:30 - 10:15

Occlusion, But Not As You Know It presented by Larry Browne

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10:15 - 10:35

Exhibition and networking

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10:35 - 11:20

Orthognathic model surgery and intermaxillary wafers presented by James Green, OTA

Orthognathic surgery is a surgical procedure where bone is cut, moved, modified, realigned and held in place with plates and screws to correct maxillo-mandibular skeletal discrepancies that cannot be treated with orthodontics alone. This involves three-dimensional manipulation of the maxilla, the mandible or both (known as a bimaxillary osteotomy). Model surgery forms an integral part of orthognathic surgery planning. Early pioneers relied upon their surgical expertise and/or unarticulated models to predict the post-operative position. Today, one method uses models mounted on a Denar Semi Adjustable Articulator with a facebow and the Erickson Model Block and Platform to simulate the surgical movements. These articulated/repositioned models are then used to manufacture the intermediate and final intermaxillary wafers that are used to position the jaws in the intermediate and final positions during the surgical procedure. Intermaxillary wafers are commonly made from auto-polymerized poly(methyl methacrylate) (PMMA) but this material has several disadvantages, including residual monomers which can cause allergic reactions and distortion of the material due to polymerisation shrinkage and /or water adsorption which could lead to incorrect jaw repositioning during the surgical procedure. Light-cured urethane acrylate-based materials can overcome these drawbacks. This presentation offers a step-by-step guide to a straightforward, accurate and efficient system for orthognathic model surgery planning using the Denar Semi Adjustable Articulator and the Erickson Model Block and Platform and intermaxillary wafer fabrication with light-cured urethane acrylate-based material that is used at London’s Great Ormond Street Hospital for Children.

Aims & Objectives:

- An overview of orthognathic surgery.
- An overview of orthognathic model surgery techniques.
- What intermediate and final intermaxillary wafers are and why they are necessary.
- How dental casts can be articulated using the Denar Semi Adjustable Articulator.
- How articulated dental casts and the Erickson Model Block and Platform can be used to simulate orthognathic surgery.
- How light-cured urethane acrylate based material can be used to manufacture intermediate and final intermaxillary wafers.

coffee

11:20 - 11:40

Exhibition and networking

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11:40 - 12:25

Communication Between Laboratory and Clinic presented by Larry Browne

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12:25 - 12:45

Exhibition and networking

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12:45 - 13:30

Fast Back Non-Compliance Distalizing Device presented by Lucia Amato, OTA

Fast Back Device is used to correct CL II malocclusion. It is definitely one of the most popular device for unilateral or bilateral molar distalization in the orthodontic field.

The Fast Back is a non-compliance distalising device based on the principle to deliver continuous costant forces, exerted by Ni-Ti Memoria springs. These springs perform between 200g-300g force on the molars to be disalized, once activated provide bodily distalization of the upper molars. Furthermore Fast Back's features:

- Reduce or minimize undesired molar movement
- Control of the distalizing forces, both in magnitude and direction
- There is no need for patient’s cooperation
- Good anchorage control
- Used in conjunction with fixed treatment
- Reduce the duration treatment
- No frequent activation

Learning objectives:

- To discuss the Fast Back's System as Non-Compliance Distalizing Device.
- To explain its technical characteristics and manufacturing process.

lunch

13:30 - 14:00

Exhibition and networking

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14:00 - 14:45

Colour Capture and Communication in Dentistry presented by Larry Browne

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14:45 - 15:05

Exhibition and networking

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15:05 - 15:50

Metal Manufacturing in Dental - The future technology that is here presented by Joachim Kause, WHW Plastics Ltd

The dental hybrid manufacturing solution combine the advantages of Additive Manufacturing with subtractive technology, which means a time and cost-efficient production process combined with highest accuracy. A specific single software solution controls both, the 3D metal printing process and the milling process.

Learning objectives:

- Highest accuracy of the products thanks to milling the surface of the additive part where needed.
- Freedom of design for any patient specific case
- Tailored fit dental products with thinnest wall structures.