Is LightForce the new Damon?
Kevin O'Brien's Orthodontic Blog
by Kevin O'Brien
5d ago
We are all familiar with the story of self-ligating brackets, specifically the Damon appliance. Many of us may also remember the claims made by Damon Key Opinion Leaders (KOLs) that suggested faster treatment, greater comfort, and even the ability to grow bone. However, these claims did not hold up to scientific scrutiny, and the orthodontic profession was misled.  Now, a new development in brackets and wires called LightForce is being heavily marketed with claims of faster treatment times, reduced visits, and greater efficiency per patient. But the question remains: Is Lightforce the new ..read more
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A response to “What is better RME or watchful waiting for pediatric OSA”?
Kevin O'Brien's Orthodontic Blog
by Kevin O'Brien
1w ago
Last week, I wrote a post on the effects of RME or watchful waiting on paediatric Obstructive Sleep Apnoea. This attracted a lot of comments and sparked some controversy. As is customary with my blog, I always offer a blog post to anyone who offers a different perspective from mine. Dr. Dave Singh has taken me up on this offer and provided his viewpoint. Prof Dave Singh is an Adjunct Professor in Sleep Medicine at Stanford University, USA. He is a member of the American Academy of Sleep Medicine and the World Sleep Society. He invented the first palatal expander to be FDA-cleared for the ..read more
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Are Bonded retainers better than vacuum-formed retainers, a new RCT?
Kevin O'Brien's Orthodontic Blog
by Kevin O'Brien
1w ago
In the last decade, researchers have done several clinical trials and systematic reviews to understand the short-term effectiveness of different retention regimes. One of the significant questions that they are trying to answer is the comparative efficacy of bonded and vacuum-formed retainers. A recent study has investigated this issue in detail. I have written several blog posts about retainer research, and after reviewing various papers, it appears that there are not many significant differences between the two main types of retainers. Therefore, when deciding on a retention regime, it is im ..read more
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What is better RME or watchful waiting for paediatric OSA?
Kevin O'Brien's Orthodontic Blog
by Kevin O'Brien
2w ago
There is a debate among orthodontists regarding the relationship between orthodontics and breathing. Some orthodontists claim that orthodontic treatment with Rapid Maxillary Expansion (RME) can cure breathing problems in children, but their argument is based on low-quality research. The studies that support this claim are typically uncontrolled and do not consider the role of average growth. For instance, the reduction in tonsillar size with growth could lead to improved breathing rather than orthodontic treatment. In fact, one study even asserts that orthodontic treatment reduces tonsil size ..read more
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A new study shows Invisalign Mandibular Advancement is not effective.
Kevin O'Brien's Orthodontic Blog
by Kevin O'Brien
3w ago
I’ve noticed that there has been an increase in the number of papers published on clear aligners recently. Align has been promoting the use of Invisalign for teenagers and has also developed a new appliance called the Mandibular Advancement appliance. This serves as an alternative to other functional appliances. A team has published a new paper on the effectiveness of Invisalign Mandibular Advancement. Their findings suggest that this method may be ineffective in reducing overjets. I have discussed this appliance before, as previous research has produced conflicting results regarding its effec ..read more
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Exposure to Head and neck CT radiation is associated with blood cancers.
Kevin O'Brien's Orthodontic Blog
by Kevin O'Brien
1M ago
About a year ago, I did a post on the incidence of brain cancer after CT examinations of children and young adults. This was a very controversial blog post, and there were many comments. Most of these supported the research, and others attempted to minimise the concerns raised by this paper. The study team have now published a further paper from this study. This addresses the incidence of blood cancers following CT radiation scans of children and young adults. Before I get into this paper, I would like to highlight that the authors pointed out. “There is no dose threshold below which the ris ..read more
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Invisalign or fixed appliances in extraction treatment: Which is better?
Kevin O'Brien's Orthodontic Blog
by Kevin O'Brien
1M ago
It’s great to see that researchers are now publishing studies that compare the efficacy of Invisalign with fixed appliances. This latest study conducted on patients who had their first premolar extracted indicated some of the constraints of clear aligners. Based on our understanding, clear aligners are an option for treating mild to moderate problems in patients who prefer non-fixed appliance treatment. However, some providers and companies have tried to use aligners for more severe problems. Despite the promising advancements, further research must be conducted on this kind of treatment. Ther ..read more
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Back to basics: 10 Interesting Tips for Orthodontic Space Closure
Kevin O'Brien's Orthodontic Blog
by Padhraig Fleming
1M ago
Introduction and a COVID Christmas. I am currently recovering from a particularly nasty case of “the COVID” and am experiencing a bit of brain fog. As a result, I have gone for an easy option and got Padhraig Fleming to do the first post of the year. This is part of the “Back to Basics” series. He discusses a combination of evidence and his personal clinical tips on orthodontic space closure. Background and evidence Space closure is a discrete phase of treatment treatment. With few exceptions, it follows initial alignment and precedes finishing and detailing. Numerous excellent studies have co ..read more
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Here are the Top 10 posts of 2023
Kevin O'Brien's Orthodontic Blog
by Kevin O'Brien
2M ago
Every December, I take a look at the most popular posts of the year. These include those that are read the most and also have the highest level of engagement. I am presenting these as a simple list. I also appreciate that as they are the most popular posts, it is likely that you have read them. However, please have a look and revisit this year, particularly, as some have controversial yet interesting comments sections. I have put the most popular post last. 10. We need to talk about myofunctional orthodontics In this post, I was critical about myofunctional orthodontics and all the snake oil t ..read more
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Fixed retainers fail a lot!
Kevin O'Brien's Orthodontic Blog
by Kevin O'Brien
2M ago
Fixed retainers are a routine part of orthodontic practice. However, do we know the failure rates for this essential component of treatment? This was examined in a new systematic review. The findings were both surprising and disappointing. When I had practiced clinically for a few years, my preferred form of retention was fixed retainers. After a while, I became aware that I was keeping many of my patients under review to check their retainers. This was one of the factors that persuaded me to switch to vacuum-formed retention. Another factor was the failure rate. I estimated this was about 5 ..read more
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