Kevin O'Brien's orthodontic blog

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Kevin O'Brien's orthodontic blog

This is the page for my orthodontic blog. This is a surprisingly popular blog in which I post weekly on orthodontic research and related subjects

20/10/2025

A really useful paper on the Interception of palatally displaced canines.

We all try to intercept impaction of the palatally displaced canine (PDC). This new paper was written to provide information to the general dental practitioner about this treatment. Its contents are very relevant and helpful for both general practitioners and orthodontists.

Explore the latest research on interceptive treatment of canine impaction, focusing on primary canine removal and its uncertain but potential benefits.

29/09/2025

"REAL-WORLD” EVIDENCE ON BONDED MANDIBULAR RETAINERS: SURVIVAL & CLINICAL IMPLICATIONS

The number of bonded retainer trials is increasing, and we are gaining evidence on this important aspect of orthodontic care. However, most of these trials are conducted in dental schools with inexperienced operators, which limits the generalisability of their findings. This new study, conducted in a specialist orthodontic practice, provides us with valuable, clinically relevant information on the failure of bonded retainers.

Discover the findings of a high-quality clinical trial on bonded mandibular retainers, comparing survival rates and patient outcomes over 24 months.

15/09/2025

A NEW STUDY SHOWS THAT SANDBLASTING DECREASES BONDED RETAINER FAILURE RATE: AN RCT

There have been many recent studies on the effectiveness of orthodontic retainers. As a result, we are getting a substantial body of good clinical evidence on their use. However, trials consistently show a high failure rate for bonded retainers. Consequently, more research is being conducted to find ways to address this issue. One approach involves considering sandblasting the enamel surface as part of the bonding protocol. This study examined the effectiveness of this method.

A recent study shows that sandblasting enamel surface prior to bonding mandibular retainers significantly lowers failure rates—an approach for improved orthodontic outcomes.

04/08/2025

Do enlarged tonsils really influence dentofacial development?
Adenotonsillar hypertrophy can obstruct the upper airway, which may result in children breathing through their mouths. It is a common belief that this may influence their craniofacial growth and dental occlusion.
This concept tends to be based on various interpretations of the classic papers by Linder-Aronson and Harvold. However, we should also consider other studies. This new systematic review, which incorporates data from many studies, is of both clinical and scientific importance.

This new systematic review including data from many papers on the association between adenotonsillar hypertrophy is of both clinical and scientific importance.

14/07/2025

Improving fixed retainers: Is it time for titanium?

In this post Padhraig Fleming outlines a new randomised trial into the use of CAD/CAM titanium retainers. The authors therefore aimed to test the clinical effectiveness of CAD-CAM Ti5 fixed retainers comparing these to established 8-stranded stainless steel fixed retainers over a 6-month period.

Explore the latest advancements in retainers, comparing CAD/CAM titanium Ti5 designs to traditional stainless steel for effective, long-term orthodontic retention.

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http://www.kevinobrienorthoblog.com/

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