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PUBLICATIONS

Masterpiece – Visualisation with Precision: The Aesthetic Articulator

Sep 03. 2021

QDT featured Yugo’s article in 2016 (originally published in Japanese).   Having trained as a dental technician in Japan (at Osaka University Dental Hospital), being featured in the ‘masterpiece’ section of QDT is an honourable achievement. It is a privileged benchmark that the high-end ceramists in Japan aspire for recognition and respect within the field.   The actual storyline of the article is very similar to my previous post presenting the Aesthetic Articulator (https://smilevirtuoso.com/the-aesthetic-articulator-australian-patent-au2013100527/). However, the aesthetics of the presented case/restorations are probably the best I have ever presented from a technical perspective. The patient desired the highest level/degree of incisal translucency/characteristics, which mimics the complex nature of natural dentition. The outcome is so satisfying that even dental professionals cannot distinguish them from natural teeth.   When I design...

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PUBLICATIONS

Restoration of Two Implants using Custom Abutments and Transverse Screw-retained Zirconia Crowns

Jul 23. 2021

The American Journal of Esthetic Dentistry featured Yugo’s article titled 'Restorations of Two Implants using Custom Abutments and Transverse Screw-retained Zirconia Crowns' co-authored with Dr Andrew Chio (Melbourne, Australia) in 2012 (originally published in English).   There is a myth that the popularity of cross-pin retained implant restorations exists in a specific geographical location – Melbourne, Australia. Cross-pinning uses a transverse screw to attach the restorations to an implant abutment when access for the abutment screw would compromise the aesthetics and structural integrity of the prosthesis.   This technique traditionally requires the final restoration to be completed as an all-metal or metal-ceramic prosthesis. However, this article explores the possibility to fabricate the restorations using metal-free Zirconia based systems. This case report presents an alternative technique...

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BEFORE AND AFTER

Before and After 2019: Missing Tooth Replacement on Lateral Incisors (Part 1)

May 28. 2021

A Caucasian female patient in her 20s was introduced to me upon completion of extensive orthodontic treatment to create enough space to replace the missing laterals. It has been a long journey for the patient to get to the point having the implants on the laterals and hoping to achieve the smile that she never thought was possible.   There were a few technical challenges that I encountered: the angulation of the screw channels colour matching with the surrounding natural dentition.   1: Today, close to 100% of my implant restorations are requested as screw-retained rather than cement-retained. When the angulation of the implants are not ideal, then my primary choice is to use dynamic abutment – an alternative to the genuine Ti interface...

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PUBLICATIONS

Ultimate Zirconia Coping Design: Understnding Aesthetics and Function

May 07. 2021

eLABORATE Magazine featured Yugo’s article titled ‘Ultimate Zirconia Coping Design: Understanding Aesthetics and Function’ in Sep/Oct 2012 (published language: English).   Introduction: It has been a decade since Zirconia became available to the dental market, and it is now one of the premier alternatives to Porcelain Fused to Metal (PFM) restorations.   There are always pros and cons in selecting any material, and dental professionals need to treat their chosen material properly to ensure the longevity of the restorations. One of the common issues facing Zirconia is the potential fracture of the layering ceramic/porcelain (Fig 1 & 2). The general causes of the problem are: Firing program/conditions, Parafunctional stresses, Ceramic-Zirconia compatibility, and Insufficient support in the sub-structure.   Understanding of function/occlusion, visualisation of the outcome and an appropriate...

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BEFORE AND AFTER

Before and After 2010: Treatment of Cleft Lip and Palate – a “Pro-bono” Smile Makeover

Jan 08. 2021

A female patient in her early 20s presented with congenitally missing upper lateral incisors, and one canine, a total of 3 teeth seeking a fixed replacement. The patient has a cleft lip and palate bilaterally, which has been treated several times over the years with surgery to repair it. Implants are not possible as there is no bone in the surgical repair sites, and in fact, she still has an oro-nasal communication.   The patient had limited resources to pay for treatment and hoped that the federal Cleft Lip and Palate Scheme would cover the costs, which turned out that only extractions and dentures are eligible for the claim. Thus, the treating clinician – Dr Michael Mandikos and I had decided to treat...

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PUBLICATIONS

Reproducing Nature Part 2: Blending into Natural Dentition

Jan 01. 2021

eLABORATE Magazine featured Yugo’s article titled ‘Reproducing Nature Part 2: Blending into natural dentition’ in May/June 2006 (published language: English).     Introduction:   Isn’t colour matching a restoration to nature one of the hardest things for all of us to achieve? To be able to reproduce the colour, there are so many factors we have to consider and get right. The value, chroma, hue, translucency, characterisation and even the surface anatomy and shine control of the tooth are all essential considerations.   However, from my perspective as a ceramist, we have to consider another crucial aspect – the background. The teeth in the mouth are always under the influence of the colour from the gum, and it is very easy for human eyes to make misjudgements...

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Technical/Clinical Tips & Tricks

CORRECTION OF MIDLINE CANT WITH A SINGLE CENTRAL INCISOR

Jan 01. 2021

The primary objective of treating a single central incisor is to create a restoration that blends in with the surroundings. The two front teeth - upper central incisors -are the most dominant part of the smile, and they are used to determine the position and cant of a facial and dental midline. Studies suggest that the most important relationship to evaluate the aesthetics is the mediolateral inclination of the maxillary incisors. If the incisors are inclined by 2mm right or left, laypeople regard this as unesthetic.   Figs 1 & 2 show a trauma case with damaged right upper central incisor – 11. The assessment of the facial midline can only determine with a full-face photo; however, the images suggest enough to indicate...

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BEFORE AND AFTER

Before and After 2008: Welcoming my Inaugural Patient at Smile by Yugo

Jan 01. 2021

A Caucasian male in his 30s presented with a trauma case on the (patient’s) right central incisor (11) – had an accident while playing football. He was also concerned about the appearance of the (patient’s) right lateral incisor (12) – it appears too short and narrow in his words.   11 is a non-vital tooth with minor discolouration in the stump (c.f., Fig 1); thus, we selected a zirconia restoration. The opacity of Lava Zirconia was suitable for slight masking, and its aesthetic advantage in complex colour matching.   12 is a healthy, vital tooth clinically speaking (c.f., Fig 1), thus we required only a minor conservative prep to proceed with the refractory veneer. Additionally, bleaching was completed two weeks before the shade taking...

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