Has your patient got a gummy smile?! Aesthetic Crown Lengthening how, when and does really it work in all cases?

Objectives: 
        1. To understand biological width and the how to achieve predictable outcomes. 

        2. When to consider crown lenghthening  

        3. Very high gummy smiles and how to improve this with new technologies 

Aims:  To understand biological width and the how to achieve predictable outcomes. Utilising new technologies to achieve the best results. Utilising cone beam technology to plan how to reduce a very high gummy smile due to skeletal issues