Dentists consider two categories of factors for smile design: Facial and dental features. These are the ones that will define the new smile of the patients. Our eyes focus on the soft and hard tissues on a face that contribute to the smile. Dental...
Dentists consider two categories of factors for smile design: Facial and dental features. These are the ones that will define the new smile of the patients. Our eyes focus on the soft and hard tissues on a face that contribute to the smile. Dental features mainly focus on teeth and their relationship with soft tissue in the oral cavity, such as the gingiva. Let's view these components in more detail for patients who are interested in smile design.
1) Face Line
To design a smile, the dentist takes the symmetry, alignment, and proportions of the face into account and works with technological tools and digital results. There are six types of face shapes that can be observed by looking at the face. These are heart, elongated, oval, triangular, square, and round. When the face is viewed from the profile, one of the three profile types, which are convex, flat, and concave, is observed and analyzed by prosthodontists. Following this study, treatment options are combined into a holistic plan and presented to patients.
General Facial Line and Facial-Proportions:
The human face is considered in two dimensions: Horizontal and vertical. Horizontal size; covers the width of the face, mouth and nose. For example, a normal face width should be equal to five times the eye width. The width at the inner corners of the eyelids is the ideal ratio for the width of the nose. The width of the mouth should be as much as the distance between the pupils, that is, the centres of the eyes. Vertical dimension; the face can be handled vertically in three parts. The first is the upper third; forms the upper part of the eyebrows with the hairline. The second third is the middle of the face and is the midline up to the base of the nose. The last part covers the lower third, that is, the area from the base of the nose to the bottom of the jawbone.
2) Dental Components
Dentists look at the following criteria in patients when designing smiles according to dental characteristics;
+ Demographic characteristics; gender, age, personality status,
+ Symmetry, balance, occlusion and jaw-closing conditions in teeth,
+ Zenith points of lateral incisors, dental midline, lengths of incisors,
+ Soft tissue components; general gum health, gum line, smile line.
Bonus! The smile line is a structure that is desired to be emphasized in smile design. It is located at the lower edge of the upper teeth and is the first to be noticed in a smile when seen from the outside.
Digital Smile Design
Thanks to technological developments, digital smile design tools allow the patients to see the end result before the treatment and decide the style and shape of new teeth accordingly. The important point here is that patients should take into consideration that these digital smile design technologies do not reflect the exact end results since there are many other factors that cannot be calculated by these tools, like jaw and bone structure, lip positioning and preparation limitations. Still, this kind of technology allows patients to have an idea regarding the result.