Dr. Simon McDonald

Dr. Simon McDonald
CEO & Managing Director – Rhondium Group Dr Simon McDonald is a serial inventor and entrepreneur as well as a successful dentist. His achievements include being the founder and CEO of Triodent (2003), which was later sold to Dentsply in 2013. He is also the founder and CEO of Rhondium (2013). Simon received his BDS in 1978 and a MSc in 1983. He is the author of one of the first papers on the Atraumatic Restorative Treatment (1983) and has also published papers on world-wide patterns of caries. Some of Dr McDonald’s most notable inventions include: V, V3 and V4 Rings, Double-Wedge, V Wedge, Wave Wedge and V4 Wedge, WedgeGuard, Tab Matrix Band, V3 Tab Matrix Band, SuperCurve Matrix Band, ClearMetal Matrix Band, Tri-Clip, Griptab and The One Visit Crown.
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Recent Posts

New OVC Proximal Wedge Technique makes OVC procedures more predictable

Posted by Dr. Simon McDonald on 8 May 2020 10:21:28 AM

Introducing the new Bandless Proximal Wedge Technique

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Tags: Latest News, Practice Productivity, New Product Release, Dentistry, OVC Proximal Wedge, One Visit Crown

How to achieve correct occlusal distance when placing the One Visit Crown

Posted by Dr. Simon McDonald on 8 January 2020 3:12:40 PM

In this post, we will explain how to achieve correct occlusal distance with the One Visit Crown (OVC)

Tooth preparation - how much clearance to leave

When preparing the tooth for the placement of the One Visit Crown, at least 1mm of clearance needs to be allowed in the central fossa and 1.5mm at the cusps and marginal ridges for the OVC to be seated.

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Tags: Occlusion, Clinical Tips

Deep margin elevation using OVC Wedge

Posted by Dr. Simon McDonald on 14 May 2019 3:20:05 PM

See how to use the OVC Wedges for deep margin elevation prior to placement of the McDonald Matrix Band. 

The OVC Wedges are anatomically shaped to follow the natural curve of the tooth. They come in both a left and right version for mesial or distal placement, and are an ideal tool for deep margin elevation (DME).

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Tags: Clinical Case Study, Clinical Tips, deep margin elevation

Examples of prepped teeth for the OVC

Posted by Dr. Simon McDonald on 11 April 2019 10:10:36 AM

Many dentists have questions about how much to prep the tooth prior to placing the OVC One Visit Crown. If you haven't already, make sure you read this blog post on how to achieve correct occlusal distance when placing the One Visit Crown. One of the benefits of the OVC is that is doesn't need an invasive circumferential prep so is more conservative for the tooth.

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Tags: Clinical Case Study, Occlusion

How to close an open contact

Posted by Dr. Simon McDonald on 10 April 2019 10:26:45 AM

In this series of blog posts we will be addressing some of the most frequently asked questions surrounding the One Visit Crown (OVC). Nothing in dentistry is easy, but we hope that some of these tips and tricks will help you to continue to provide great clinical outcomes for your patients. 

Firstly, make sure that you have read our articles on how to achieve tight contacts:

If you familiarise yourself well with the above methods to get tight contacts, then ideally you should not end up with an open contact at all. However, on the odd chance that it does occur, below we will outline what to do in order to recover. 

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Tags: Clinical Tips, Tight Contacts

How to get tight contacts using the Garrison Composi-Tight® original ring

Posted by Dr. Simon McDonald on 9 April 2019 1:19:46 PM

The OVC system is flexible in its use. To create separation, you can use any of the following;

  • Garrison Composi-Tight® original ring with wooden wedges
  • Wooden wedges alone
  • Stretch Wedges

Below we will show you a clinical tip on how to use wooden wedges in combination with a separating ring for optimum separating force. 

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Tags: Clinical Tips, Direct Technique, Tight Contacts

Getting started: 4 ideal clinical situations for the One Visit Crown (OVC)

Posted by Dr. Simon McDonald on 27 February 2019 2:42:32 PM

To identify your first One Visit Crown (OVC) case, look for;

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Tags: Clinical Case Study, Clinical Tips

How To Master Your First Case - One Visit Crown (OVC)

Posted by Dr. Simon McDonald on 6 November 2018 4:47:09 PM

Congratulations on taking the first step to delighting your patients with an affordable one visit dental crown solution.

To get the most out of the One Visit Crown system, it is important you receive clinical training to make sure that you are as comfortable as possible with the procedure.

The secret to a successful first OVC case is to be prepared.  

We've included in this post a checklist, plus extra tips so you can systematically plan your first OVC restoration and ensure everything goes as smoothly as possible.   

We've also included links where you can access further clinical training. 

Key resources we recommend you review before your first OVC case:

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Tags: Clinical Tips

MUST SEE clinical tip - easier method to place the McDonald Matrix Band

Posted by Dr. Simon McDonald on 2 November 2018 4:17:50 PM

This clinical tip will show you how to place the McDonald Matrix Band in three manageable steps. You will see how to stabilise the band while placing, which makes it easier to tighten the matrix band and to achieve the correct vertical height.

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Tags: Clinical Tips

How to get consistently tight contacts with the OVC

Posted by Dr. Simon McDonald on 10 May 2018 12:33:00 PM

In this article we will run you through how to get consistently tight contacts with the OVC.

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Tags: Clinical Tips, Direct Technique, Tight Contacts