By Dr Italo Carpes Moraes and Dr Bruno Carlini.
In a fast changing world, dentistry has witnessed a fantastic revolution in the last few decades with regards to technical and philosophical concepts.
Certain widely accepted postulates are now making way to new paradigms based on oral health promotion and changing patient behaviour prior to any clinical intervention. Advances in the scientific understanding of disease progression have also allowed a shift in focus from a restorative-mechanistic approach to a more comprehensive perspective, where patient education and behaviour change precedes any restorative work.
Once the patient is committed to being a part of his/her own treatment by having a clear understanding of the reasons why the restoration is needed, we can then perform restorative dentistry with more confidence in a successful long-term prognosis.
Potential pressures of corporate dentistry and some public health care policies can dissuade us from spending time on important aspects like health promotion and strict restorative protocols – especially regarding bonded materials. However, rewards can be drawn from the results of an artistic, natural-looking restoration. A meticulous bonding protocol, for example, can lead to reliable adhesive restorations, enabling preservation of the natural dental structure and mimicking nature.
The popular nomenclature of a dental ‘filling’ is still very ingrained in our profession; even nowadays, when highly developed materials allow us to restore dental structures almost back to their original condition. Therefore, the word ‘restoration’ is more adequate when dental tissues are reconstructed with biomimetic materials.
We all hope that resin restorative materials will evolve to a stage of no contraction. Until this happens, we need to stick with proven methods like the incremental technique to overcome the drastic consequences of polymerisation shrinkage in the long-term prognosis of our restorations. Bulk fill composites and glass ionomer materials can be used to speed-up the protocol, but they should not serve as a substitute for a careful, incremental technique.
Restorative options could be indirect ceramics or direct composite resin. Indirect options result in destruction of sound tissue by occlusal reduction, mechanical preparation with geometric design, several laboratorial steps, cementation techniques and high costs. In contrast, direct techniques can provide a one-step procedure, involving simplicity of bond and restorative protocols. The main benefit of this philosophy is prevention of sound tissue. Neither ceramic or composite are better than sound dental tissue. The idea that wide MOD cavities cause dental cuspids to fracture and that covering these structures is the best protocol, must be reconsidered.
The authors selected a case to illustrate this philosophy.
The patient presented with an infiltrated occlusal composite on the LL6, followed by recurrent decay (Figure 3), as well as lack of correct morphology (Figures 1 & 2). Soft dentine was removed, resulting in a deep and wide cavity with unsupported enamel (Figures 4 & 5). The pulp-dentine complex was protected using a modified glass ionomer resin (3M Oral Care’s Vitremer Core Buildup/Restorative) (Figure 6). The chosen bonding technique was a selective etching of enamel with 35% phosphoric acid and a self-etching Scotchbond Universal bonding system from 3M on dentine (Figures 7 and 8). Filtek Supreme XTE Bulk Fill composite (3M) A1E shade was used firstly in a flowable consistency to re-enforce the unsupported enamel (Figure 9) and then in a restorative consistency to substitute the dentine in the pulpal wall of the occlusal cavity (Figure 10).
The final layers that act as a substitute for the enamel were restored with a nano-hybrid composite – 3M’s Filtek Supreme XTE universal restorative shade A1 (Figure 7), using one increment for each cusp and allowing a correct sculpture of natural morphology .
With a final restoration that effectively mimics the natural tooth, chewing efficiency is increased and the loads supporting the tissues are more evenly distributed. Like artisans, we can employ our knowledge and skills in this way, forging a unique piece of art in every patient, through provision of a long-lasting and beautiful restoration.
For more information, call 0845 602 5094 or visit www.3Mespe.co.uk
About the authors:
Dr Italo Carpes Moraes began practising dentistry in 2002, registered in the UK in 2008. As a dentist he is particularly interested in trying to understand his clients as individuals with a complex combination of characteristics. He works to promote good oral health and natural looking smiles, ultimately aiming to improve his clients’ quality of life.
Dr Bruno Carlini: MS, DDS in Restorative Dentistry at UNICAMP- SP – Brazil Dental Clinic and Professor at Meridional Odontological Center (CEOM) – Passo Fundo – Brazil
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It is very common to think that we should not touch our gums when cleaning our mouth. But we definitely and imperatively have to touch our gums in our daily routine.
Sometimes we think that our gums are sensitive or we can cause recession (exposure of the roots of our teeth) if we brush around the gums.
Our gums will not bleed if they are healthy, and to keep them healthy we need to remove the bacterias that are hidden in the tiny space between the gum and the teeth which is called gingival sulcus.
If we avoid touching the gums or miss any area while brushing and flossing, the bacterias will start accumulating in these areas, our body will develop a defence (inflammation) towards them, and that is the reason our gums bleed, not because we are hurting it.
Recession of our gums has multiple causes and the traumatic brush is just one component of it. Furthermore, if we use soft or medium brushes and not put excessive force while brushing, there is no harm to the gingival tissue.
Try and check the results for yourself.
London dentist registered in the UK since 2008. His mission is to improve patient health & appearance, self-confidence and overall quality of life.