SMILING IN THE FACE OF YOUR BROTHER ARE CHARITY ” (PROPHET MOHAMED)
INTRODUCTION
They say you shouldnt judge a book by its cover - but we all do! One of the first judgments we make with people is how they smile and how confident they are. In fact it’s difficult to not form an immediate opinion about someone based on their smile. Smiles say a lot about who a person is, how confident they are, and even how successful they are. Like beauty, a smile is more than skin deep and your face seems to know if your smile feels confident or not.
Just what makes an attractive smile? Why do some smiles exude confidence and look naturally beautiful, while others look plain and average? How can teeth make one person look older and another person look younger? What makes one person’s smile a loser while another person’s smile a real winner - that helps them do more business, make more sales, and have more friends? And finally, why do some smiles convey a careless disregard for health.
Smile, is the ability of person to express a range of emotions with the structure and movement of the teeth and lips. It can often determine how well a person can function in society.
Depending on the nature of labial mucous membrane
Dependant on the lip component
A software tool used for diagnosis, treatment planning and communication in esthetic dentistry, it was developed by Brazilian dental technician called Christian Coachman.
The goal of an esthetic makeover is to develop a peaceful and stable masticatory system, where the teeth, tissues, muscles, skeletal structures and joints all function in harmony (Peter Dawson).
1. Facial considerations
2. Dentolabial considerations
3. Dental considerations
4. Phonetics
5. Gingival considerations
1. FRONTAL VIEW:
examined using horizontal (interpupilary line) and vertical (midline) reference lines.
There are two facial features which do play a major role in the smile design:
In classical terms, the horizontal and vertical dimensions for an ideal face are as follows:
1. Horizontal:
2. Vertical: The facial height is divided into three equal parts from the fore head to the eyebrow line, from the eyebrow line to the base of the nose and from the base of the nose to the base of the chin. The full face is divided into two parts, eyes being the midline. The lower part of the face from the base of the nose to the chin is divided into two parts, the upper lip forms one-third of it and the lower lip and the chin two-thirds of it.
The basic shape of the face when viewed from the frontal aspect can be one of the following:
1. Square
2. Tapering
3. Square tapering
4. Ovoid
The lateral profile of an individual can be any one of the following:
1. Straight
2. Convex
3. Concave
These factors play a role in determining the tooth size, shape and the lateral profile; in short, the tooth morphology is dependent on the facial morphology.
Vital elements of smile designing (dental composition)
The vital elements of smile designing include the following:
1. Tooth components
2. Soft tissue components
Degree of tooth display: a. 2 mm of incisor edge show at rest b. about 2 mm of gingival show.
TOOTH DIMENSIONS
Central Dominance dictates that the centrals must be the dominant teeth in the arch and they must display pleasing proportions.
The proportions of the centrals must be esthetically and mathematically correct→ the width to length ratio → 4:5
GUIDELINES FOR CORRECT PROPORTIONS....
Golden proportion (Lombardi )
When viewed from the facial, the width of each anterior tooth is 60% of the width of the adjacent tooth (mathematical ratio being 1.6:1:0.6) .
The lateral incisors should be 60% the width of the central incisors and the canines 60% that of the lateral incisors.
Recurring esthetic dental proportion (Ward)
Are the most apical position of the cervical tooth margin where the gingiva is most scalloped.
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The edges of maxillary anterior teeth follow a convex or gull-wing course matching the curvature of lower lip.
Gingival health
The gingiva acts as the frame for the teeth; thus, the final esthetic success of the case is greatly affected by the gingival health.
Gingival Line: GAL- gingival aesthetic line- the ideal gingival line from cuspid to central incisors intersects the dental midline at an angle >45° but
The three basic methods:
1) Mock Up – with soft tooth colored wax or composite resin.
2) Diagnostic Wax-Up Or Study Casts- evaluated by patient directly on diagnostic casts of articular and also intraorally with use of acrylic overlays and acetate matrices.
3) Computer Imaging
It is a layer of tooth colored material that is applied to a tooth to restore localised or generalised defects and intrinsic discoloration. Indications:
Contraindictions:
Types:
| Advantages: | Disadvantages: |
| Color | Time |
| Bond strength | Repair is difficult once luted to enamel |
| Periodontal health | Technique sensitive |
| Resistance to abrasion | Difficulty in color modification |
| Inherent porcelain strength | Tooth preparation |
| Resistance to fluid absorption | Fragility of porcelain |
| esthetics | Cost is high |
At Hai Dent our cosmetic dentist can redefine your smile that will make you say WOW . In the smile makeover of crooked teeth, chipped teeh , carious or discloured teeth as you can see in image gallery, with the help of advanced dental setup and dental lab team we can create miracles for you. The zirconia crowns or veneers are of world class quality since it is done by world class dental lab supplying its dental work globally up to dentists in USA and delivered to you by our expert prosthodontists.
