MINI-ESTHETICS AND MICRO-ESTHETICS.pptx

- Orthodontics
- Mini aesthetics
- Micro aesthetics

1. MINI-ESTHETICS AND MICRO-ESTHETICS AMNA 028

2. MINI ESTHETICS Includes assessment of the relationship of dentition to the face (tooth-lip relationship and smile analysis) Incisor display Gingival display Smile analysis

3. SYMMETRY - relationship of dental midline of each arch to the skeletal midline of the jaw

4. VERTICAL RELATIONSHIP: INCISAL STOMIAN : amount of maxillary central incisors exposure beneath the upper lip when the patients lips are at rest. Incisal display at rest: 1-4 mm (ideal) Incisal display on smile: 100 % incisal show is ideal 75 % crown display (minimum for excellent esthetics) Females- 1-2 mm of gingival display is ideal Males- only incisal show Measured from the lower vermillion border of the upper to the incisal edge on rest and on smiling.

5. Smile assessment Smile line Smile arc Buccal corridors Smile line: vertical display Low, average or high

6. Smile arc: Relationship of maxillary incisal edges with the curvature of lower lip in a posed smile. Consonant: In an ideal smile, the incisal edges of the maxillary anteriors are parallel to the curvature of the lower lip. Non- consonant: flat incisal curvature.

7. BUCCAL CORRIDORS Transverse dimensions of the smile Space between the buccal surface of posterior teeth (maxillary premolars) and the angle of mouth on smiling WIDE: - Too much space - N egative spaces -Can be due to constricted arch NARROW: -Less space

8. MICRO-ESTHETICS The esthetics of individual tooth including the size, shape and shade The teeth in relation to each other

9. TOOTH PROPORTIONS In relation to height and width of anterior teeth For 10mm height of the crown there should be 8mm width

10. MESIO-DISTAL WIDTH (GOLDEN PROPORTION) Width of the maxillary anterior teeth on smile and their actual mesiodistal width differ because of curvature of dental arch . Apparent width of lateral incisor should be 62% of the width of central incisor Apparent width of canine should be 62% of the width of lateral incisors Apparent width of the 1st premolar should be 62% of the width of the canine This guideline helps us to determine the post-treatment size of lateral incisors in case they’re disproportionately small of large or when canines are narrowed to replace missing laterals

11. GINGIVAL HEIGHTS, SHAPE AND CONTOUR HEIGHT: Proportional gingival heights are needed to produce a normal and attractive dental appearance Establishing a correct gingival level for each tooth will help create a pleasing smile Generally; Central incisor – highest gingival level Lateral incisor – 1.5mm lower Canine – at the level of central Important during tooth substitutions Differences of more than 2 mm are noticeable

12. SHAPE: Curvature of gingiva at the margin of the tooth Gingival shapes of; Maxillary centrals - elliptical Maxillary laterals – symmetric half-oval or half-circle Maxillary canines – elliptical

13. CONNECTORS AND EMBRASSURES CONNECTORS: Interdental contact area Areas where adjacent teeth appear to touch and may extend apically or occlusally from the actual contact point The actual contact point is a small area The connector includes the contact points as well as areas above and below Normal connector height – greatest between the central incisors EMBRASSURES: Triangular spaces, incisal and gingival to the contact points Ideally, larger in size than the connectors Gingival embrasures – filled with interdental papillae

14. BLACK TRIANGLES Occur as a result of short interdental papillae Leaves an open gingival embrasure above the connectors Actual and potential black triangles to be notes during examination

15. TOOTH SHADE AND COLOUR Younger age – whiter and brighter Older age – darker and duller B righest tooth in mouth is central  lateral  canine S hade of premolar matches to that of lateral incisors