Teeth arrangement / orthodontics courses online

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Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.

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Teeth arrangement / orthodontics courses online

  1. 1. TEETHTEETH ARRANGEMENTARRANGEMENT INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  2. 2. Four principal factors controlling the positions of artificial teeth in complete dentures: Horizontal relations to the residual ridges Vertical positions of the occlusal surfaces and incisal edges. Esthetic requirements Inclinations for occlusion. www.indiandentalacademy.com
  3. 3. HORIZONTAL POSITIONS to provide stability to the denture bases. to direct the masticatory forces along the long axis. to support lips and cheek for esthetics to be compatible with functions of the surrounding tissues for functions of masticaiton, speech, swallowing and phonetics. www.indiandentalacademy.com
  4. 4. www.indiandentalacademy.com
  5. 5. Artificial teeth should be placed on the crest of the residual alveolar ridge in the recently extracted mandibular arch. Mandibular anatomic landmarks which guide the arrangement of teeth: 1.Reteromolar fossae. 2.Retermolar papilla 3.Reteromolar pad 4.Mandibular canine. www.indiandentalacademy.com
  6. 6. Reteromolar fossae- triangle formed by external oblique line and mylohyoid line. This triangle is slightly posterior and lateral to the position of the molar teeth. Reteromolar papilla – small pear-shaped area of gingival tissue situated at the base of reteromolar pad limits the position of artificial teeth. Reteromolar pad- pear shaped pad of tissue locared at the distal end of the mandibular ridge. Mandibular canine – turning point of the mandibular arch, distal part is rotated posteriorly. www.indiandentalacademy.com
  7. 7. Definite anatomic landmarks should be used as guides in arranging anterior teeth: 1.Incisal papilla – guide to midline and placement of the maxillary central incisor. 2.Midsaggital suture – guide for midline. 3.Canine lines – lines dropped on the cast down from the canine eminence. Coincides with the posterior surface of the canine. www.indiandentalacademy.com
  8. 8. VERTICAL POSITIONS Correct vertical position of the teeth should provide- Denture stability Favorable forces Support to lips and cheek Compatibility www.indiandentalacademy.com
  9. 9. Vertical postion of the mandibular teeth – The occlusal surface of the last mandibular molar is on a place approximately at the bottom of the upper third of the retermolar pad. Vertical position of the maxillary teeth - is usually determined by the esthetics, phonetics. www.indiandentalacademy.com
  10. 10. Arrangement of teeth for esthetics Influenced by: Age Sex Personality Cosmetic factor www.indiandentalacademy.com
  11. 11. Influences of age: Muscle tonus decreases with age, cheek sag- horizontal overlap of posterior teeth increased to prevent cheek biting. Interincisal distance increases with age: therefore more of the incisal portion of the mandibular teeth is visible. Teeth abrade with age. Central and lateral incisor lie at same horizontal levels. Smile of older individuals is more curved than sharp as in for young individuals.www.indiandentalacademy.com
  12. 12. Influences of sex: Square features are associated with males, and rounded or oval with females. Incisal edge of maxillary anterior teeth follows the curve of the lower lip for females. Distal surface of the maxillary central incisor is rotated posteriorly for females. The mesial portion of the lateral incisor usually overlaps the central incisor in case of females. In males the central incisor’s distal half overlaps the lateral incisor. Distal surface of female canines are rotated distally making only mesial half visible. In males even the distal surface is visible when viewed from fronatalwww.indiandentalacademy.com
  13. 13. Personality of the patient: Habitual patterns and qualities of behaviour. Profession and public appearance of the patient. Cosmetic Factor Patients personal interest in grooming. Teeth for an otherwise neat, well groomed patient can expected to be similar. www.indiandentalacademy.com
  14. 14. www.indiandentalacademy.com

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