As a company, DSD has authored, co-authored and contributed to numerous articles in clinical journals while our services, training and workflows are all evidence based.
The article: “Comparing the use of static versus dynamic images to evaluate a smile” was co-authored by Christian Coachman and published in the Journal of Prosthetic Dentistry. In it, the authors evaluated the characteristics of posed and dynamic smiles of both sexes.
Luken de Arbeloa, DSD Education Strategy Maestro specialized in prosthetics, implant prostheses and esthetic dentistry highlights the most important takeaways from this article here.
What is the most important thing a dentist should understand about this article?
Luken de Arbeloa: “According to past studies on the analysis of gum exposure when smiling, it was considered that the majority of the population had an average smile line (gingival embrasures only visible).
However, recent studies have shown a different finding: that the most common smile is a high smile line (between 0 to 2 mm of marginal gingiva visible). This is because in the past, studies were carried out in a static way using photography, where the information obtained was perhaps not completely reliable. In contrast, new studies have carried out the same analysis comparing it with a spontaneous smile that has been recorded on video (dynamic analysis), which allows for a more adequate evaluation of the true level of gum exposure when smiling.In order to carry out a correct smile analysis it is essential to use dynamic analysis (video) that allows the evaluation of a real and spontaneous smile.”
Does this article link to any other papers that DSD has co-authored or other researchers have published?
Luken de Arbeloa:“Yes, it links to the following papers
Coachman C, Calamita MA, Sesma N. Dynamic Documentation of the Smile and the 2D/3D Digital Smile Design Process. Int J Periodontics Restorative Dent. 2017 Mar/Apr;37(2):183-193. doi: 10.11607/prd.2911. PMID: 28196157.
Silva BP, Tortora SC, Stanley K, Mahn G, Coachman C, Mahn E. Layperson's preference of the transverse occlusal plane in asymmetric facial model. J Esthet Restor Dent. 2019 Nov;31(6):620-626. doi: 10.1111/jerd.12526. Epub 2019 Sep 13. PMID: 31515911.
Coachman C, Sesma N, Blatz MB. The complete digital workflow in interdisciplinary dentistry. Int J Esthet Dent. 2021;16(1):34-49. PMID: 33502130."
How does this knowledge influence how we teach at courses or our services at the DSD Planning Center?
Luken de Arbeloa: “The protocol for a first consultation in the DSD methodology includes a mandatory video of the patient. This is a full-face video in which we can analyze the relationship of the lips with the gums and teeth at different times such as rest, maximum smile, etc. That’s why in our courses we put a lot of emphasis on the importance and characteristics that the video should have.
This dynamic information is fundamental for our team of designers to make the right decisions when designing each of the hundreds of cases we receive each month at the DSD Planning Center, otherwise the result of the design could be compromised.”
In our ‘Clinical Articles’ series we’ll be looking at clinical articles co-authored by Christian Coachman alongside other notable clinicians to highlight the topics we believe are relevant to dental professionals today.
Comparing the use of static versus dynamic images to evaluate a smile
Mahn E, Sampaio CS, Pereira da Silva B, Stanley K, Valdés AM, Gutierrez J, Coachman C. Comparing the use of static versus dynamic images to evaluate a smile. J Prosthet Dent. 2020 May;123(5):739-746. doi: 10.1016/j.prosdent.2019.02.023. Epub 2019 Aug 2. PMID: 31383523.
